1. 前言:
- Android 5.0 原生Settings代码路径: android-5.0.0/packages/apps/Settings.
- 代码架构: 和 4.4 基本相同, 重要的代码块全部集结在 WifiSettings.java 文件中.
- WifiSettings.java 文件路径: android-5.0.0/packages/apps/Settings/src/com/android/settings/wifi/WifiSettings.java
2. Android 5.0 WiFi 部分的源码解析:
2.1 WIFI 模块整体的功能结构:
- 开启 WiFi.
- 关闭 WiFi.
- 获取 WiFi 列表.
- 持续扫描 WiFi 热点.
- 连接网络.
- 忘记网络.
- 添加网络.
- 网络高级设置等.
2.2 WiFi 整体功能示意图:
image.png
2.3 WiFi 操作的函数封装, 见: Android-WiFi开发之 WifiManager
2.4 由于代码结构和 4.4 版本的十分类似, 故此处不再分析流程和操作函数分析, 贴出源代码, 利于大家学习, 具体如下:
- Settings.java 文件(Wifi模块的主界面). WifiSettings.java 在线代码
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID;
import static android.os.UserManager.DISALLOW_CONFIG_WIFI;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.Dialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.NetworkInfo.DetailedState;
import android.net.NetworkScoreManager;
import android.net.NetworkScorerAppManager;
import android.net.NetworkScorerAppManager.NetworkScorerAppData;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WpsInfo;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.UserHandle;
import android.preference.Preference;
import android.preference.PreferenceScreen;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.android.settings.R;
import com.android.settings.RestrictedSettingsFragment;
import com.android.settings.SettingsActivity;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
import com.android.settings.search.SearchIndexableRaw;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Two types of UI are provided here.
*
* The first is for "usual Settings", appearing as any other Setup fragment.
*
* The second is for Setup Wizard, with a simplified interface that hides the action bar
* and menus.
*/
public class WifiSettings extends RestrictedSettingsFragment
implements DialogInterface.OnClickListener, Indexable {
private static final String TAG = "WifiSettings";
private static final int REQUEST_ENABLE_WIFI_ASSISTANT = 1;
/* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST;
private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1;
private static final int MENU_ID_SAVED_NETWORK = Menu.FIRST + 2;
/* package */ static final int MENU_ID_ADD_NETWORK = Menu.FIRST + 3;
private static final int MENU_ID_ADVANCED = Menu.FIRST + 4;
private static final int MENU_ID_SCAN = Menu.FIRST + 5;
private static final int MENU_ID_CONNECT = Menu.FIRST + 6;
private static final int MENU_ID_FORGET = Menu.FIRST + 7;
private static final int MENU_ID_MODIFY = Menu.FIRST + 8;
private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9;
private static final String KEY_ASSISTANT_DISMISS_PLATFORM = "assistant_dismiss_platform";
public static final int WIFI_DIALOG_ID = 1;
/* package */ static final int WPS_PBC_DIALOG_ID = 2;
private static final int WPS_PIN_DIALOG_ID = 3;
private static final int WRITE_NFC_DIALOG_ID = 6;
// Combo scans can take 5-6s to complete - set to 10s.
private static final int WIFI_RESCAN_INTERVAL_MS = 10 * 1000;
// Instance state keys
private static final String SAVE_DIALOG_EDIT_MODE = "edit_mode";
private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state";
private static boolean savedNetworksExist;
private final IntentFilter mFilter;
private final BroadcastReceiver mReceiver;
private final Scanner mScanner;
/* package */ WifiManager mWifiManager;
private WifiManager.ActionListener mConnectListener;
private WifiManager.ActionListener mSaveListener;
private WifiManager.ActionListener mForgetListener;
private WifiEnabler mWifiEnabler;
// An access point being editted is stored here.
private AccessPoint mSelectedAccessPoint;
private DetailedState mLastState;
private WifiInfo mLastInfo;
private final AtomicBoolean mConnected = new AtomicBoolean(false);
private WifiDialog mDialog;
private WriteWifiConfigToNfcDialog mWifiToNfcDialog;
private TextView mEmptyView;
// this boolean extra specifies whether to disable the Next button when not connected. Used by
// account creation outside of setup wizard.
private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect";
// should Next button only be enabled when we have a connection?
private boolean mEnableNextOnConnection;
// Save the dialog details
private boolean mDlgEdit;
private AccessPoint mDlgAccessPoint;
private Bundle mAccessPointSavedState;
private View mWifiAssistantCard;
private NetworkScorerAppData mWifiAssistantApp;
/** verbose logging flag. this flag is set thru developer debugging options
* and used so as to assist with in-the-field WiFi connectivity debugging */
public static int mVerboseLogging = 0;
/* End of "used in Wifi Setup context" */
/** A restricted multimap for use in constructAccessPoints */
private static class Multimap<K,V> {
private final HashMap<K,List<V>> store = new HashMap<K,List<V>>();
/** retrieve a non-null list of values with key K */
List<V> getAll(K key) {
List<V> values = store.get(key);
return values != null ? values : Collections.<V>emptyList();
}
void put(K key, V val) {
List<V> curVals = store.get(key);
if (curVals == null) {
curVals = new ArrayList<V>(3);
store.put(key, curVals);
}
curVals.add(val);
}
}
private static class Scanner extends Handler {
private int mRetry = 0;
private WifiSettings mWifiSettings = null;
Scanner(WifiSettings wifiSettings) {
mWifiSettings = wifiSettings;
}
void resume() {
if (!hasMessages(0)) {
sendEmptyMessage(0);
}
}
void forceScan() {
removeMessages(0);
sendEmptyMessage(0);
}
void pause() {
mRetry = 0;
removeMessages(0);
}
@Override
public void handleMessage(Message message) {
if (mWifiSettings.mWifiManager.startScan()) {
mRetry = 0;
} else if (++mRetry >= 3) {
mRetry = 0;
Activity activity = mWifiSettings.getActivity();
if (activity != null) {
Toast.makeText(activity, R.string.wifi_fail_to_scan, Toast.LENGTH_LONG).show();
}
return;
}
sendEmptyMessageDelayed(0, WIFI_RESCAN_INTERVAL_MS);
}
}
public WifiSettings() {
super(DISALLOW_CONFIG_WIFI);
mFilter = new IntentFilter();
mFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);
mFilter.addAction(WifiManager.NETWORK_IDS_CHANGED_ACTION);
mFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION);
mFilter.addAction(WifiManager.LINK_CONFIGURATION_CHANGED_ACTION);
mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
mFilter.addAction(WifiManager.RSSI_CHANGED_ACTION);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
handleEvent(intent);
}
};
mScanner = new Scanner(this);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
mConnectListener = new WifiManager.ActionListener() {
@Override
public void onSuccess() {
}
@Override
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_connect_message,
Toast.LENGTH_SHORT).show();
}
}
};
mSaveListener = new WifiManager.ActionListener() {
@Override
public void onSuccess() {
}
@Override
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_save_message,
Toast.LENGTH_SHORT).show();
}
}
};
mForgetListener = new WifiManager.ActionListener() {
@Override
public void onSuccess() {
}
@Override
public void onFailure(int reason) {
Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity,
R.string.wifi_failed_forget_message,
Toast.LENGTH_SHORT).show();
}
}
};
if (savedInstanceState != null) {
mDlgEdit = savedInstanceState.getBoolean(SAVE_DIALOG_EDIT_MODE);
if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) {
mAccessPointSavedState =
savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE);
}
}
// if we're supposed to enable/disable the Next button based on our current connection
// state, start it off in the right state
Intent intent = getActivity().getIntent();
mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false);
if (mEnableNextOnConnection) {
if (hasNextButton()) {
final ConnectivityManager connectivity = (ConnectivityManager)
getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo info = connectivity.getNetworkInfo(
ConnectivityManager.TYPE_WIFI);
changeNextButtonState(info.isConnected());
}
}
}
addPreferencesFromResource(R.xml.wifi_settings);
prepareWifiAssistantCard();
mEmptyView = initEmptyView();
registerForContextMenu(getListView());
setHasOptionsMenu(true);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent resultData) {
if (requestCode == REQUEST_ENABLE_WIFI_ASSISTANT) {
if (resultCode == Activity.RESULT_OK) {
disableWifiAssistantCardUntilPlatformUpgrade();
getListView().removeHeaderView(mWifiAssistantCard);
mWifiAssistantApp = null;
}
} else {
super.onActivityResult(requestCode, resultCode, resultData);
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
if (mWifiEnabler != null) {
mWifiEnabler.teardownSwitchBar();
}
}
@Override
public void onStart() {
super.onStart();
// On/off switch is hidden for Setup Wizard (returns null)
mWifiEnabler = createWifiEnabler();
}
/**
* @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard)
*/
/* package */ WifiEnabler createWifiEnabler() {
final SettingsActivity activity = (SettingsActivity) getActivity();
return new WifiEnabler(activity, activity.getSwitchBar());
}
@Override
public void onResume() {
final Activity activity = getActivity();
super.onResume();
if (mWifiEnabler != null) {
mWifiEnabler.resume(activity);
}
activity.registerReceiver(mReceiver, mFilter);
updateAccessPoints();
}
@Override
public void onPause() {
super.onPause();
if (mWifiEnabler != null) {
mWifiEnabler.pause();
}
getActivity().unregisterReceiver(mReceiver);
mScanner.pause();
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// If the user is not allowed to configure wifi, do not show the menu.
if (isUiRestricted()) return;
addOptionsMenuItems(menu);
super.onCreateOptionsMenu(menu, inflater);
}
/**
* @param menu
*/
void addOptionsMenuItems(Menu menu) {
final boolean wifiIsEnabled = mWifiManager.isWifiEnabled();
TypedArray ta = getActivity().getTheme().obtainStyledAttributes(
new int[] {R.attr.ic_menu_add, R.attr.ic_wps});
menu.add(Menu.NONE, MENU_ID_ADD_NETWORK, 0, R.string.wifi_add_network)
.setIcon(ta.getDrawable(0))
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
if (savedNetworksExist) {
menu.add(Menu.NONE, MENU_ID_SAVED_NETWORK, 0, R.string.wifi_saved_access_points_label)
.setIcon(ta.getDrawable(0))
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
}
menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.menu_stats_refresh)
.setEnabled(wifiIsEnabled)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
menu.add(Menu.NONE, MENU_ID_ADVANCED, 0, R.string.wifi_menu_advanced)
.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
ta.recycle();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// If the dialog is showing, save its state.
if (mDialog != null && mDialog.isShowing()) {
outState.putBoolean(SAVE_DIALOG_EDIT_MODE, mDlgEdit);
if (mDlgAccessPoint != null) {
mAccessPointSavedState = new Bundle();
mDlgAccessPoint.saveWifiState(mAccessPointSavedState);
outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState);
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// If the user is not allowed to configure wifi, do not handle menu selections.
if (isUiRestricted()) return false;
switch (item.getItemId()) {
case MENU_ID_WPS_PBC:
showDialog(WPS_PBC_DIALOG_ID);
return true;
/*
case MENU_ID_P2P:
if (getActivity() instanceof SettingsActivity) {
((SettingsActivity) getActivity()).startPreferencePanel(
WifiP2pSettings.class.getCanonicalName(),
null,
R.string.wifi_p2p_settings_title, null,
this, 0);
} else {
startFragment(this, WifiP2pSettings.class.getCanonicalName(),
R.string.wifi_p2p_settings_title, -1, null);
}
return true;
*/
case MENU_ID_WPS_PIN:
showDialog(WPS_PIN_DIALOG_ID);
return true;
case MENU_ID_SCAN:
if (mWifiManager.isWifiEnabled()) {
mScanner.forceScan();
}
return true;
case MENU_ID_ADD_NETWORK:
if (mWifiManager.isWifiEnabled()) {
onAddNetworkPressed();
}
return true;
case MENU_ID_SAVED_NETWORK:
if (getActivity() instanceof SettingsActivity) {
((SettingsActivity) getActivity()).startPreferencePanel(
SavedAccessPointsWifiSettings.class.getCanonicalName(), null,
R.string.wifi_saved_access_points_titlebar, null, this, 0);
} else {
startFragment(this, SavedAccessPointsWifiSettings.class.getCanonicalName(),
R.string.wifi_saved_access_points_titlebar,
-1 /* Do not request a result */, null);
}
return true;
case MENU_ID_ADVANCED:
if (getActivity() instanceof SettingsActivity) {
((SettingsActivity) getActivity()).startPreferencePanel(
AdvancedWifiSettings.class.getCanonicalName(), null,
R.string.wifi_advanced_titlebar, null, this, 0);
} else {
startFragment(this, AdvancedWifiSettings.class.getCanonicalName(),
R.string.wifi_advanced_titlebar, -1 /* Do not request a results */,
null);
}
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) {
if (info instanceof AdapterContextMenuInfo) {
Preference preference = (Preference) getListView().getItemAtPosition(
((AdapterContextMenuInfo) info).position);
if (preference instanceof AccessPoint) {
mSelectedAccessPoint = (AccessPoint) preference;
menu.setHeaderTitle(mSelectedAccessPoint.ssid);
if (mSelectedAccessPoint.getLevel() != -1
&& mSelectedAccessPoint.getState() == null) {
menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect);
}
if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
if (ActivityManager.getCurrentUser() == UserHandle.USER_OWNER) {
menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget);
}
menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify);
if (mSelectedAccessPoint.security != AccessPoint.SECURITY_NONE) {
// Only allow writing of NFC tags for password-protected networks.
menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc);
}
}
}
}
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if (mSelectedAccessPoint == null) {
return super.onContextItemSelected(item);
}
switch (item.getItemId()) {
case MENU_ID_CONNECT: {
if (mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
connect(mSelectedAccessPoint.networkId);
} else if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE) {
/** Bypass dialog for unsecured networks */
mSelectedAccessPoint.generateOpenNetworkConfig();
connect(mSelectedAccessPoint.getConfig());
} else {
showDialog(mSelectedAccessPoint, true);
}
return true;
}
case MENU_ID_FORGET: {
mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener);
return true;
}
case MENU_ID_MODIFY: {
showDialog(mSelectedAccessPoint, true);
return true;
}
case MENU_ID_WRITE_NFC:
showDialog(WRITE_NFC_DIALOG_ID);
return true;
}
return super.onContextItemSelected(item);
}
@Override
public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
if (preference instanceof AccessPoint) {
mSelectedAccessPoint = (AccessPoint) preference;
/** Bypass dialog for unsecured, unsaved networks */
if (mSelectedAccessPoint.security == AccessPoint.SECURITY_NONE &&
mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) {
mSelectedAccessPoint.generateOpenNetworkConfig();
if (!savedNetworksExist) {
savedNetworksExist = true;
getActivity().invalidateOptionsMenu();
}
connect(mSelectedAccessPoint.getConfig());
} else {
showDialog(mSelectedAccessPoint, false);
}
} else {
return super.onPreferenceTreeClick(screen, preference);
}
return true;
}
private void showDialog(AccessPoint accessPoint, boolean edit) {
if (mDialog != null) {
removeDialog(WIFI_DIALOG_ID);
mDialog = null;
}
// Save the access point and edit mode
mDlgAccessPoint = accessPoint;
mDlgEdit = edit;
showDialog(WIFI_DIALOG_ID);
}
@Override
public Dialog onCreateDialog(int dialogId) {
switch (dialogId) {
case WIFI_DIALOG_ID:
AccessPoint ap = mDlgAccessPoint; // For manual launch
if (ap == null) { // For re-launch from saved state
if (mAccessPointSavedState != null) {
ap = new AccessPoint(getActivity(), mAccessPointSavedState);
// For repeated orientation changes
mDlgAccessPoint = ap;
// Reset the saved access point data
mAccessPointSavedState = null;
}
}
// If it's null, fine, it's for Add Network
mSelectedAccessPoint = ap;
mDialog = new WifiDialog(getActivity(), this, ap, mDlgEdit);
return mDialog;
case WPS_PBC_DIALOG_ID:
return new WpsDialog(getActivity(), WpsInfo.PBC);
case WPS_PIN_DIALOG_ID:
return new WpsDialog(getActivity(), WpsInfo.DISPLAY);
case WRITE_NFC_DIALOG_ID:
if (mSelectedAccessPoint != null) {
mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(
getActivity(), mSelectedAccessPoint, mWifiManager);
return mWifiToNfcDialog;
}
}
return super.onCreateDialog(dialogId);
}
/**
* Shows the latest access points available with supplemental information like
* the strength of network and the security for it.
*/
private void updateAccessPoints() {
// Safeguard from some delayed event handling
if (getActivity() == null) return;
if (isUiRestricted()) {
addMessagePreference(R.string.wifi_empty_list_user_restricted);
return;
}
final int wifiState = mWifiManager.getWifiState();
//when we update the screen, check if verbose logging has been turned on or off
mVerboseLogging = mWifiManager.getVerboseLoggingLevel();
switch (wifiState) {
case WifiManager.WIFI_STATE_ENABLED:
// AccessPoints are automatically sorted with TreeSet.
final Collection<AccessPoint> accessPoints =
constructAccessPoints(getActivity(), mWifiManager, mLastInfo, mLastState);
getPreferenceScreen().removeAll();
if (accessPoints.size() == 0) {
addMessagePreference(R.string.wifi_empty_list_wifi_on);
}
getListView().removeHeaderView(mWifiAssistantCard);
if (mWifiAssistantApp != null) {
getListView().addHeaderView(mWifiAssistantCard);
}
for (AccessPoint accessPoint : accessPoints) {
// Ignore access points that are out of range.
if (accessPoint.getLevel() != -1) {
getPreferenceScreen().addPreference(accessPoint);
}
}
break;
case WifiManager.WIFI_STATE_ENABLING:
getPreferenceScreen().removeAll();
break;
case WifiManager.WIFI_STATE_DISABLING:
addMessagePreference(R.string.wifi_stopping);
break;
case WifiManager.WIFI_STATE_DISABLED:
setOffMessage();
break;
}
}
/**
* Returns the Network Scorer for the Wifi Assistant App.
*/
public static NetworkScorerAppData getWifiAssistantApp(Context context) {
Collection<NetworkScorerAppData> scorers =
NetworkScorerAppManager.getAllValidScorers(context);
if (scorers.isEmpty()) {
return null;
}
// TODO: b/13780935 - Implement proper scorer selection. Rather than pick the first
// scorer on the system, we should allow the user to select one.
return scorers.iterator().next();
}
private void prepareWifiAssistantCard() {
if (getActivity() instanceof WifiPickerActivity) {
return;
}
if (NetworkScorerAppManager.getActiveScorer(getActivity()) != null) {
// A scorer is already enabled; don't show the card.
return;
}
Collection<NetworkScorerAppData> scorers =
NetworkScorerAppManager.getAllValidScorers(getActivity());
if (scorers.isEmpty()) {
// No scorers are available to enable; don't show the card.
return;
}
SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
int lastDismissPlatform = sharedPreferences.getInt(KEY_ASSISTANT_DISMISS_PLATFORM, 0);
if (Build.VERSION.SDK_INT <= lastDismissPlatform) {
// User has dismissed the Wi-Fi assistant card on this SDK release. Suppress the card
// until the next major platform upgrade.
return;
}
// TODO: b/13780935 - Implement proper scorer selection. Rather than pick the first
// scorer on the system, we should allow the user to select one.
mWifiAssistantApp = scorers.iterator().next();
if (mWifiAssistantCard == null) {
mWifiAssistantCard = LayoutInflater.from(getActivity())
.inflate(R.layout.wifi_assistant_card, getListView(), false);
Button setup = (Button) mWifiAssistantCard.findViewById(R.id.setup);
Button noThanks = (Button) mWifiAssistantCard.findViewById(R.id.no_thanks_button);
TextView assistantText =
(TextView) mWifiAssistantCard.findViewById(R.id.wifi_assistant_text);
assistantText.setText(getResources().getString(
R.string.wifi_assistant_title_message, mWifiAssistantApp.mScorerName));
if (setup != null && noThanks != null) {
setup.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
if (mWifiAssistantApp.mConfigurationActivityClassName != null) {
// App has a custom configuration activity; launch that.
// This custom activity will be responsible for launching the system
// dialog.
intent.setClassName(mWifiAssistantApp.mPackageName,
mWifiAssistantApp.mConfigurationActivityClassName);
} else {
// Fall back on the system dialog.
intent.setAction(NetworkScoreManager.ACTION_CHANGE_ACTIVE);
intent.putExtra(NetworkScoreManager.EXTRA_PACKAGE_NAME,
mWifiAssistantApp.mPackageName);
}
startActivityForResult(intent, REQUEST_ENABLE_WIFI_ASSISTANT);
}
});
noThanks.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
disableWifiAssistantCardUntilPlatformUpgrade();
getListView().removeHeaderView(mWifiAssistantCard);
mWifiAssistantApp = null;
}
});
}
}
}
private void disableWifiAssistantCardUntilPlatformUpgrade() {
SharedPreferences sharedPreferences = getPreferenceScreen().getSharedPreferences();
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putInt(KEY_ASSISTANT_DISMISS_PLATFORM, Build.VERSION.SDK_INT);
editor.apply();
}
protected TextView initEmptyView() {
TextView emptyView = (TextView) getActivity().findViewById(android.R.id.empty);
getListView().setEmptyView(emptyView);
return emptyView;
}
private void setOffMessage() {
if (mEmptyView != null) {
mEmptyView.setText(R.string.wifi_empty_list_wifi_off);
if (android.provider.Settings.Global.getInt(getActivity().getContentResolver(),
android.provider.Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1) {
mEmptyView.append("\n\n");
int resId;
if (android.provider.Settings.Secure.isLocationProviderEnabled(
getActivity().getContentResolver(), LocationManager.NETWORK_PROVIDER)) {
resId = R.string.wifi_scan_notify_text_location_on;
} else {
resId = R.string.wifi_scan_notify_text_location_off;
}
CharSequence charSeq = getText(resId);
mEmptyView.append(charSeq);
}
}
getPreferenceScreen().removeAll();
}
private void addMessagePreference(int messageId) {
if (mEmptyView != null) mEmptyView.setText(messageId);
getPreferenceScreen().removeAll();
}
/** Returns sorted list of access points */
private static List<AccessPoint> constructAccessPoints(Context context,
WifiManager wifiManager, WifiInfo lastInfo, DetailedState lastState) {
ArrayList<AccessPoint> accessPoints = new ArrayList<AccessPoint>();
/** Lookup table to more quickly update AccessPoints by only considering objects with the
* correct SSID. Maps SSID -> List of AccessPoints with the given SSID. */
Multimap<String, AccessPoint> apMap = new Multimap<String, AccessPoint>();
final List<WifiConfiguration> configs = wifiManager.getConfiguredNetworks();
if (configs != null) {
// Update "Saved Networks" menu option.
if (savedNetworksExist != (configs.size() > 0)) {
savedNetworksExist = !savedNetworksExist;
if (context instanceof Activity) {
((Activity) context).invalidateOptionsMenu();
}
}
for (WifiConfiguration config : configs) {
if (config.selfAdded && config.numAssociation == 0) {
continue;
}
AccessPoint accessPoint = new AccessPoint(context, config);
if (lastInfo != null && lastState != null) {
accessPoint.update(lastInfo, lastState);
}
accessPoints.add(accessPoint);
apMap.put(accessPoint.ssid, accessPoint);
}
}
final List<ScanResult> results = wifiManager.getScanResults();
if (results != null) {
for (ScanResult result : results) {
// Ignore hidden and ad-hoc networks.
if (result.SSID == null || result.SSID.length() == 0 ||
result.capabilities.contains("[IBSS]")) {
continue;
}
boolean found = false;
for (AccessPoint accessPoint : apMap.getAll(result.SSID)) {
if (accessPoint.update(result))
found = true;
}
if (!found) {
AccessPoint accessPoint = new AccessPoint(context, result);
accessPoints.add(accessPoint);
apMap.put(accessPoint.ssid, accessPoint);
}
}
}
// Pre-sort accessPoints to speed preference insertion
Collections.sort(accessPoints);
return accessPoints;
}
private void handleEvent(Intent intent) {
String action = intent.getAction();
if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(action)) {
updateWifiState(intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE,
WifiManager.WIFI_STATE_UNKNOWN));
} else if (WifiManager.SCAN_RESULTS_AVAILABLE_ACTION.equals(action) ||
WifiManager.CONFIGURED_NETWORKS_CHANGED_ACTION.equals(action) ||
WifiManager.LINK_CONFIGURATION_CHANGED_ACTION.equals(action)) {
updateAccessPoints();
} else if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(
WifiManager.EXTRA_NETWORK_INFO);
mConnected.set(info.isConnected());
changeNextButtonState(info.isConnected());
updateAccessPoints();
updateConnectionState(info.getDetailedState());
} else if (WifiManager.RSSI_CHANGED_ACTION.equals(action)) {
updateConnectionState(null);
}
}
private void updateConnectionState(DetailedState state) {
/* sticky broadcasts can call this when wifi is disabled */
if (!mWifiManager.isWifiEnabled()) {
mScanner.pause();
return;
}
if (state == DetailedState.OBTAINING_IPADDR) {
mScanner.pause();
} else {
mScanner.resume();
}
mLastInfo = mWifiManager.getConnectionInfo();
if (state != null) {
mLastState = state;
}
for (int i = getPreferenceScreen().getPreferenceCount() - 1; i >= 0; --i) {
// Maybe there's a WifiConfigPreference
Preference preference = getPreferenceScreen().getPreference(i);
if (preference instanceof AccessPoint) {
final AccessPoint accessPoint = (AccessPoint) preference;
accessPoint.update(mLastInfo, mLastState);
}
}
}
private void updateWifiState(int state) {
Activity activity = getActivity();
if (activity != null) {
activity.invalidateOptionsMenu();
}
switch (state) {
case WifiManager.WIFI_STATE_ENABLED:
mScanner.resume();
return; // not break, to avoid the call to pause() below
case WifiManager.WIFI_STATE_ENABLING:
addMessagePreference(R.string.wifi_starting);
break;
case WifiManager.WIFI_STATE_DISABLED:
setOffMessage();
break;
}
mLastInfo = null;
mLastState = null;
mScanner.pause();
}
/**
* Renames/replaces "Next" button when appropriate. "Next" button usually exists in
* Wifi setup screens, not in usual wifi settings screen.
*
* @param enabled true when the device is connected to a wifi network.
*/
private void changeNextButtonState(boolean enabled) {
if (mEnableNextOnConnection && hasNextButton()) {
getNextButton().setEnabled(enabled);
}
}
@Override
public void onClick(DialogInterface dialogInterface, int button) {
if (button == WifiDialog.BUTTON_FORGET && mSelectedAccessPoint != null) {
forget();
} else if (button == WifiDialog.BUTTON_SUBMIT) {
if (mDialog != null) {
submit(mDialog.getController());
}
}
}
/* package */ void submit(WifiConfigController configController) {
final WifiConfiguration config = configController.getConfig();
if (config == null) {
if (mSelectedAccessPoint != null
&& mSelectedAccessPoint.networkId != INVALID_NETWORK_ID) {
connect(mSelectedAccessPoint.networkId);
}
} else if (config.networkId != INVALID_NETWORK_ID) {
if (mSelectedAccessPoint != null) {
mWifiManager.save(config, mSaveListener);
}
} else {
if (configController.isEdit()) {
mWifiManager.save(config, mSaveListener);
} else {
connect(config);
}
}
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
updateAccessPoints();
}
/* package */ void forget() {
if (mSelectedAccessPoint.networkId == INVALID_NETWORK_ID) {
// Should not happen, but a monkey seems to trigger it
Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig());
return;
}
mWifiManager.forget(mSelectedAccessPoint.networkId, mForgetListener);
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
updateAccessPoints();
// We need to rename/replace "Next" button in wifi setup context.
changeNextButtonState(false);
}
protected void connect(final WifiConfiguration config) {
mWifiManager.connect(config, mConnectListener);
}
protected void connect(final int networkId) {
mWifiManager.connect(networkId, mConnectListener);
}
/**
* Refreshes acccess points and ask Wifi module to scan networks again.
*/
/* package */ void refreshAccessPoints() {
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
getPreferenceScreen().removeAll();
}
/**
* Called when "add network" button is pressed.
*/
/* package */ void onAddNetworkPressed() {
// No exact access point is selected.
mSelectedAccessPoint = null;
showDialog(null, true);
}
/* package */ int getAccessPointsCount() {
final boolean wifiIsEnabled = mWifiManager.isWifiEnabled();
if (wifiIsEnabled) {
return getPreferenceScreen().getPreferenceCount();
} else {
return 0;
}
}
/**
* Requests wifi module to pause wifi scan. May be ignored when the module is disabled.
*/
/* package */ void pauseWifiScan() {
if (mWifiManager.isWifiEnabled()) {
mScanner.pause();
}
}
/**
* Requests wifi module to resume wifi scan. May be ignored when the module is disabled.
*/
/* package */ void resumeWifiScan() {
if (mWifiManager.isWifiEnabled()) {
mScanner.resume();
}
}
@Override
protected int getHelpResource() {
return R.string.help_url_wifi;
}
public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
final List<SearchIndexableRaw> result = new ArrayList<SearchIndexableRaw>();
final Resources res = context.getResources();
// Add fragment title
SearchIndexableRaw data = new SearchIndexableRaw(context);
data.title = res.getString(R.string.wifi_settings);
data.screenTitle = res.getString(R.string.wifi_settings);
data.keywords = res.getString(R.string.keywords_wifi);
result.add(data);
// Add available Wi-Fi access points
WifiManager wifiManager =
(WifiManager) context.getSystemService(Context.WIFI_SERVICE);
final Collection<AccessPoint> accessPoints =
constructAccessPoints(context, wifiManager, null, null);
for (AccessPoint accessPoint : accessPoints) {
// We are indexing only the saved Wi-Fi networks.
if (accessPoint.getConfig() == null) continue;
data = new SearchIndexableRaw(context);
data.title = accessPoint.getTitle().toString();
data.screenTitle = res.getString(R.string.wifi_settings);
data.enabled = enabled;
result.add(data);
}
return result;
}
};
}
- AccessPoint.java 文件(网络热点的封装). AccessPoint.java 在线代码
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import com.android.settings.R;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.StateListDrawable;
import android.net.NetworkInfo.DetailedState;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiConfiguration.KeyMgmt;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.preference.Preference;
import android.util.Log;
import android.util.LruCache;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.Map;
class AccessPoint extends Preference {
static final String TAG = "Settings.AccessPoint";
/**
* Lower bound on the 2.4 GHz (802.11b/g/n) WLAN channels
*/
public static final int LOWER_FREQ_24GHZ = 2400;
/**
* Upper bound on the 2.4 GHz (802.11b/g/n) WLAN channels
*/
public static final int HIGHER_FREQ_24GHZ = 2500;
/**
* Lower bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels
*/
public static final int LOWER_FREQ_5GHZ = 4900;
/**
* Upper bound on the 5.0 GHz (802.11a/h/j/n/ac) WLAN channels
*/
public static final int HIGHER_FREQ_5GHZ = 5900;
/**
* Experimental: we should be able to show the user the list of BSSIDs and bands
* for that SSID.
* For now this data is used only with Verbose Logging so as to show the band and number
* of BSSIDs on which that network is seen.
*/
public LruCache<String, ScanResult> mScanResultCache;
private static final String KEY_DETAILEDSTATE = "key_detailedstate";
private static final String KEY_WIFIINFO = "key_wifiinfo";
private static final String KEY_SCANRESULT = "key_scanresult";
private static final String KEY_CONFIG = "key_config";
private static final int[] STATE_SECURED = {
R.attr.state_encrypted
};
private static final int[] STATE_NONE = {};
private static int[] wifi_signal_attributes = { R.attr.wifi_signal };
/**
* These values are matched in string arrays -- changes must be kept in sync
*/
static final int SECURITY_NONE = 0;
static final int SECURITY_WEP = 1;
static final int SECURITY_PSK = 2;
static final int SECURITY_EAP = 3;
enum PskType {
UNKNOWN,
WPA,
WPA2,
WPA_WPA2
}
String ssid;
String bssid;
int security;
int networkId = -1;
boolean wpsAvailable = false;
boolean showSummary = true;
PskType pskType = PskType.UNKNOWN;
private WifiConfiguration mConfig;
/* package */ScanResult mScanResult;
private int mRssi = Integer.MAX_VALUE;
private long mSeen = 0;
private WifiInfo mInfo;
private DetailedState mState;
private static final int VISIBILITY_MAX_AGE_IN_MILLI = 1000000;
private static final int VISIBILITY_OUTDATED_AGE_IN_MILLI = 20000;
private static final int SECOND_TO_MILLI = 1000;
static int getSecurity(WifiConfiguration config) {
if (config.allowedKeyManagement.get(KeyMgmt.WPA_PSK)) {
return SECURITY_PSK;
}
if (config.allowedKeyManagement.get(KeyMgmt.WPA_EAP) ||
config.allowedKeyManagement.get(KeyMgmt.IEEE8021X)) {
return SECURITY_EAP;
}
return (config.wepKeys[0] != null) ? SECURITY_WEP : SECURITY_NONE;
}
private static int getSecurity(ScanResult result) {
if (result.capabilities.contains("WEP")) {
return SECURITY_WEP;
} else if (result.capabilities.contains("PSK")) {
return SECURITY_PSK;
} else if (result.capabilities.contains("EAP")) {
return SECURITY_EAP;
}
return SECURITY_NONE;
}
public String getSecurityString(boolean concise) {
Context context = getContext();
switch(security) {
case SECURITY_EAP:
return concise ? context.getString(R.string.wifi_security_short_eap) :
context.getString(R.string.wifi_security_eap);
case SECURITY_PSK:
switch (pskType) {
case WPA:
return concise ? context.getString(R.string.wifi_security_short_wpa) :
context.getString(R.string.wifi_security_wpa);
case WPA2:
return concise ? context.getString(R.string.wifi_security_short_wpa2) :
context.getString(R.string.wifi_security_wpa2);
case WPA_WPA2:
return concise ? context.getString(R.string.wifi_security_short_wpa_wpa2) :
context.getString(R.string.wifi_security_wpa_wpa2);
case UNKNOWN:
default:
return concise ? context.getString(R.string.wifi_security_short_psk_generic)
: context.getString(R.string.wifi_security_psk_generic);
}
case SECURITY_WEP:
return concise ? context.getString(R.string.wifi_security_short_wep) :
context.getString(R.string.wifi_security_wep);
case SECURITY_NONE:
default:
return concise ? "" : context.getString(R.string.wifi_security_none);
}
}
private static PskType getPskType(ScanResult result) {
boolean wpa = result.capabilities.contains("WPA-PSK");
boolean wpa2 = result.capabilities.contains("WPA2-PSK");
if (wpa2 && wpa) {
return PskType.WPA_WPA2;
} else if (wpa2) {
return PskType.WPA2;
} else if (wpa) {
return PskType.WPA;
} else {
Log.w(TAG, "Received abnormal flag string: " + result.capabilities);
return PskType.UNKNOWN;
}
}
AccessPoint(Context context, WifiConfiguration config) {
super(context);
loadConfig(config);
refresh();
}
AccessPoint(Context context, ScanResult result) {
super(context);
loadResult(result);
refresh();
}
AccessPoint(Context context, Bundle savedState) {
super(context);
mConfig = savedState.getParcelable(KEY_CONFIG);
if (mConfig != null) {
loadConfig(mConfig);
}
mScanResult = (ScanResult) savedState.getParcelable(KEY_SCANRESULT);
if (mScanResult != null) {
loadResult(mScanResult);
}
mInfo = (WifiInfo) savedState.getParcelable(KEY_WIFIINFO);
if (savedState.containsKey(KEY_DETAILEDSTATE)) {
mState = DetailedState.valueOf(savedState.getString(KEY_DETAILEDSTATE));
}
update(mInfo, mState);
}
public void saveWifiState(Bundle savedState) {
savedState.putParcelable(KEY_CONFIG, mConfig);
savedState.putParcelable(KEY_SCANRESULT, mScanResult);
savedState.putParcelable(KEY_WIFIINFO, mInfo);
if (mState != null) {
savedState.putString(KEY_DETAILEDSTATE, mState.toString());
}
}
private void loadConfig(WifiConfiguration config) {
ssid = (config.SSID == null ? "" : removeDoubleQuotes(config.SSID));
bssid = config.BSSID;
security = getSecurity(config);
networkId = config.networkId;
mConfig = config;
}
private void loadResult(ScanResult result) {
ssid = result.SSID;
bssid = result.BSSID;
security = getSecurity(result);
wpsAvailable = security != SECURITY_EAP && result.capabilities.contains("WPS");
if (security == SECURITY_PSK)
pskType = getPskType(result);
mRssi = result.level;
mScanResult = result;
if (result.seen > mSeen) {
mSeen = result.seen;
}
}
@Override
protected void onBindView(View view) {
super.onBindView(view);
updateIcon(getLevel(), getContext());
final TextView summaryView = (TextView) view.findViewById(
com.android.internal.R.id.summary);
summaryView.setVisibility(showSummary ? View.VISIBLE : View.GONE);
notifyChanged();
}
protected void updateIcon(int level, Context context) {
if (level == -1) {
setIcon(null);
} else {
Drawable drawable = getIcon();
if (drawable == null) {
// To avoid a drawing race condition, we first set the state (SECURE/NONE) and then
// set the icon (drawable) to that state's drawable.
StateListDrawable sld = (StateListDrawable) context.getTheme()
.obtainStyledAttributes(wifi_signal_attributes).getDrawable(0);
// If sld is null then we are indexing and therefore do not have access to
// (nor need to display) the drawable.
if (sld != null) {
sld.setState((security != SECURITY_NONE) ? STATE_SECURED : STATE_NONE);
drawable = sld.getCurrent();
setIcon(drawable);
}
}
if (drawable != null) {
drawable.setLevel(level);
}
}
}
@Override
public int compareTo(Preference preference) {
if (!(preference instanceof AccessPoint)) {
return 1;
}
AccessPoint other = (AccessPoint) preference;
// Active one goes first.
if (mInfo != null && other.mInfo == null) return -1;
if (mInfo == null && other.mInfo != null) return 1;
// Reachable one goes before unreachable one.
if (mRssi != Integer.MAX_VALUE && other.mRssi == Integer.MAX_VALUE) return -1;
if (mRssi == Integer.MAX_VALUE && other.mRssi != Integer.MAX_VALUE) return 1;
if (mRssi == Integer.MAX_VALUE && other.mRssi != Integer.MAX_VALUE) return 1;
// Configured one goes before unconfigured one.
if (networkId != WifiConfiguration.INVALID_NETWORK_ID
&& other.networkId == WifiConfiguration.INVALID_NETWORK_ID) return -1;
if (networkId == WifiConfiguration.INVALID_NETWORK_ID
&& other.networkId != WifiConfiguration.INVALID_NETWORK_ID) return 1;
// Sort by signal strength.
int difference = WifiManager.compareSignalLevel(other.mRssi, mRssi);
if (difference != 0) {
return difference;
}
// Sort by ssid.
return ssid.compareToIgnoreCase(other.ssid);
}
@Override
public boolean equals(Object other) {
if (!(other instanceof AccessPoint)) return false;
return (this.compareTo((AccessPoint) other) == 0);
}
@Override
public int hashCode() {
int result = 0;
if (mInfo != null) result += 13 * mInfo.hashCode();
result += 19 * mRssi;
result += 23 * networkId;
result += 29 * ssid.hashCode();
return result;
}
boolean update(ScanResult result) {
if (result.seen > mSeen) {
mSeen = result.seen;
}
if (WifiSettings.mVerboseLogging > 0) {
if (mScanResultCache == null) {
mScanResultCache = new LruCache<String, ScanResult>(32);
}
mScanResultCache.put(result.BSSID, result);
}
if (ssid.equals(result.SSID) && security == getSecurity(result)) {
if (WifiManager.compareSignalLevel(result.level, mRssi) > 0) {
int oldLevel = getLevel();
mRssi = result.level;
if (getLevel() != oldLevel) {
notifyChanged();
}
}
// This flag only comes from scans, is not easily saved in config
if (security == SECURITY_PSK) {
pskType = getPskType(result);
}
mScanResult = result;
refresh();
return true;
}
return false;
}
void update(WifiInfo info, DetailedState state) {
boolean reorder = false;
if (info != null && networkId != WifiConfiguration.INVALID_NETWORK_ID
&& networkId == info.getNetworkId()) {
reorder = (mInfo == null);
mRssi = info.getRssi();
mInfo = info;
mState = state;
refresh();
} else if (mInfo != null) {
reorder = true;
mInfo = null;
mState = null;
refresh();
}
if (reorder) {
notifyHierarchyChanged();
}
}
int getLevel() {
if (mRssi == Integer.MAX_VALUE) {
return -1;
}
return WifiManager.calculateSignalLevel(mRssi, 4);
}
WifiConfiguration getConfig() {
return mConfig;
}
WifiInfo getInfo() {
return mInfo;
}
DetailedState getState() {
return mState;
}
static String removeDoubleQuotes(String string) {
int length = string.length();
if ((length > 1) && (string.charAt(0) == '"')
&& (string.charAt(length - 1) == '"')) {
return string.substring(1, length - 1);
}
return string;
}
static String convertToQuotedString(String string) {
return "\"" + string + "\"";
}
/**
* Shows or Hides the Summary of an AccessPoint.
*
* @param showSummary true will show the summary, false will hide the summary
*/
public void setShowSummary(boolean showSummary){
this.showSummary = showSummary;
}
/**
* Returns the visibility status of the WifiConfiguration.
*
* @return autojoin debugging information
* TODO: use a string formatter
* ["rssi 5Ghz", "num results on 5GHz" / "rssi 5Ghz", "num results on 5GHz"]
* For instance [-40,5/-30,2]
*/
private String getVisibilityStatus() {
StringBuilder visibility = new StringBuilder();
StringBuilder scans24GHz = null;
StringBuilder scans5GHz = null;
String bssid = null;
long now = System.currentTimeMillis();
if (mInfo != null) {
bssid = mInfo.getBSSID();
if (bssid != null) {
visibility.append(" ").append(bssid);
}
visibility.append(" score=").append(mInfo.score);
visibility.append(" ");
visibility.append(String.format("tx=%.1f,", mInfo.txSuccessRate));
visibility.append(String.format("%.1f,", mInfo.txRetriesRate));
visibility.append(String.format("%.1f ", mInfo.txBadRate));
visibility.append(String.format("rx=%.1f", mInfo.rxSuccessRate));
}
if (mScanResultCache != null) {
int rssi5 = WifiConfiguration.INVALID_RSSI;
int rssi24 = WifiConfiguration.INVALID_RSSI;
int num5 = 0;
int num24 = 0;
int numBlackListed = 0;
int n24 = 0; // Number scan results we included in the string
int n5 = 0; // Number scan results we included in the string
Map<String, ScanResult> list = mScanResultCache.snapshot();
// TODO: sort list by RSSI or age
for (ScanResult result : list.values()) {
if (result.seen == 0)
continue;
if (result.autoJoinStatus != ScanResult.ENABLED) numBlackListed++;
if (result.frequency >= LOWER_FREQ_5GHZ
&& result.frequency <= HIGHER_FREQ_5GHZ) {
// Strictly speaking: [4915, 5825]
// number of known BSSID on 5GHz band
num5 = num5 + 1;
} else if (result.frequency >= LOWER_FREQ_24GHZ
&& result.frequency <= HIGHER_FREQ_24GHZ) {
// Strictly speaking: [2412, 2482]
// number of known BSSID on 2.4Ghz band
num24 = num24 + 1;
}
// Ignore results seen, older than 20 seconds
if (now - result.seen > VISIBILITY_OUTDATED_AGE_IN_MILLI) continue;
if (result.frequency >= LOWER_FREQ_5GHZ
&& result.frequency <= HIGHER_FREQ_5GHZ) {
if (result.level > rssi5) {
rssi5 = result.level;
}
if (n5 < 4) {
if (scans5GHz == null) scans5GHz = new StringBuilder();
scans5GHz.append(" {").append(result.BSSID);
if (bssid != null && result.BSSID.equals(bssid)) scans5GHz.append("*");
scans5GHz.append("=").append(result.frequency);
scans5GHz.append(",").append(result.level);
if (result.autoJoinStatus != 0) {
scans5GHz.append(",st=").append(result.autoJoinStatus);
}
if (result.numIpConfigFailures != 0) {
scans5GHz.append(",ipf=").append(result.numIpConfigFailures);
}
scans5GHz.append("}");
n5++;
}
} else if (result.frequency >= LOWER_FREQ_24GHZ
&& result.frequency <= HIGHER_FREQ_24GHZ) {
if (result.level > rssi24) {
rssi24 = result.level;
}
if (n24 < 4) {
if (scans24GHz == null) scans24GHz = new StringBuilder();
scans24GHz.append(" {").append(result.BSSID);
if (bssid != null && result.BSSID.equals(bssid)) scans24GHz.append("*");
scans24GHz.append("=").append(result.frequency);
scans24GHz.append(",").append(result.level);
if (result.autoJoinStatus != 0) {
scans24GHz.append(",st=").append(result.autoJoinStatus);
}
if (result.numIpConfigFailures != 0) {
scans24GHz.append(",ipf=").append(result.numIpConfigFailures);
}
scans24GHz.append("}");
n24++;
}
}
}
visibility.append(" [");
if (num24 > 0) {
visibility.append("(").append(num24).append(")");
if (n24 <= 4) {
if (scans24GHz != null) {
visibility.append(scans24GHz.toString());
}
} else {
visibility.append("max=").append(rssi24);
if (scans24GHz != null) {
visibility.append(",").append(scans24GHz.toString());
}
}
}
visibility.append(";");
if (num5 > 0) {
visibility.append("(").append(num5).append(")");
if (n5 <= 4) {
if (scans5GHz != null) {
visibility.append(scans5GHz.toString());
}
} else {
visibility.append("max=").append(rssi5);
if (scans5GHz != null) {
visibility.append(",").append(scans5GHz.toString());
}
}
}
if (numBlackListed > 0)
visibility.append("!").append(numBlackListed);
visibility.append("]");
} else {
if (mRssi != Integer.MAX_VALUE) {
visibility.append(" rssi=");
visibility.append(mRssi);
if (mScanResult != null) {
visibility.append(", f=");
visibility.append(mScanResult.frequency);
}
}
}
return visibility.toString();
}
/**
* Updates the title and summary; may indirectly call notifyChanged().
*/
private void refresh() {
setTitle(ssid);
final Context context = getContext();
updateIcon(getLevel(), context);
// Force new summary
setSummary(null);
// Update to new summary
StringBuilder summary = new StringBuilder();
if (mState != null) { // This is the active connection
summary.append(Summary.get(context, mState));
} else if (mConfig != null && ((mConfig.status == WifiConfiguration.Status.DISABLED &&
mConfig.disableReason != WifiConfiguration.DISABLED_UNKNOWN_REASON)
|| mConfig.autoJoinStatus
>= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE)) {
if (mConfig.autoJoinStatus
>= WifiConfiguration.AUTO_JOIN_DISABLED_ON_AUTH_FAILURE) {
if (mConfig.disableReason == WifiConfiguration.DISABLED_DHCP_FAILURE) {
summary.append(context.getString(R.string.wifi_disabled_network_failure));
} else {
summary.append(context.getString(R.string.wifi_disabled_password_failure));
}
} else {
switch (mConfig.disableReason) {
case WifiConfiguration.DISABLED_AUTH_FAILURE:
summary.append(context.getString(R.string.wifi_disabled_password_failure));
break;
case WifiConfiguration.DISABLED_DHCP_FAILURE:
case WifiConfiguration.DISABLED_DNS_FAILURE:
summary.append(context.getString(R.string.wifi_disabled_network_failure));
break;
case WifiConfiguration.DISABLED_UNKNOWN_REASON:
case WifiConfiguration.DISABLED_ASSOCIATION_REJECT:
summary.append(context.getString(R.string.wifi_disabled_generic));
break;
}
}
} else if (mRssi == Integer.MAX_VALUE) { // Wifi out of range
summary.append(context.getString(R.string.wifi_not_in_range));
} else { // In range, not disabled.
if (mConfig != null) { // Is saved network
summary.append(context.getString(R.string.wifi_remembered));
}
}
if (WifiSettings.mVerboseLogging > 0) {
//add RSSI/band information for this config, what was seen up to 6 seconds ago
//verbose WiFi Logging is only turned on thru developers settings
if (mInfo != null && mState != null) { // This is the active connection
summary.append(" (f=" + Integer.toString(mInfo.getFrequency()) + ")");
}
summary.append(" " + getVisibilityStatus());
if (mConfig != null && mConfig.autoJoinStatus > 0) {
summary.append(" (" + mConfig.autoJoinStatus);
if (mConfig.blackListTimestamp > 0) {
long now = System.currentTimeMillis();
long diff = (now - mConfig.blackListTimestamp)/1000;
long sec = diff%60; //seconds
long min = (diff/60)%60; //minutes
long hour = (min/60)%60; //hours
summary.append(", ");
if (hour > 0) summary.append(Long.toString(hour) + "h ");
summary.append( Long.toString(min) + "m ");
summary.append( Long.toString(sec) + "s ");
}
summary.append(")");
}
}
if (summary.length() > 0) {
setSummary(summary.toString());
} else {
showSummary = false;
}
}
/**
* Generate and save a default wifiConfiguration with common values.
* Can only be called for unsecured networks.
* @hide
*/
protected void generateOpenNetworkConfig() {
if (security != SECURITY_NONE)
throw new IllegalStateException();
if (mConfig != null)
return;
mConfig = new WifiConfiguration();
mConfig.SSID = AccessPoint.convertToQuotedString(ssid);
mConfig.allowedKeyManagement.set(KeyMgmt.NONE);
}
}
- WifiDialog.java 文件(WIFI 操作中弹窗的主要封装). WifiDialog.java 在线代码
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import com.android.settings.R;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
class WifiDialog extends AlertDialog implements WifiConfigUiBase {
static final int BUTTON_SUBMIT = DialogInterface.BUTTON_POSITIVE;
static final int BUTTON_FORGET = DialogInterface.BUTTON_NEUTRAL;
private final boolean mEdit;
private final DialogInterface.OnClickListener mListener;
private final AccessPoint mAccessPoint;
private View mView;
private WifiConfigController mController;
private boolean mHideSubmitButton;
public WifiDialog(Context context, DialogInterface.OnClickListener listener,
AccessPoint accessPoint, boolean edit, boolean hideSubmitButton) {
this(context, listener, accessPoint, edit);
mHideSubmitButton = hideSubmitButton;
}
public WifiDialog(Context context, DialogInterface.OnClickListener listener,
AccessPoint accessPoint, boolean edit) {
super(context);
mEdit = edit;
mListener = listener;
mAccessPoint = accessPoint;
mHideSubmitButton = false;
}
@Override
public WifiConfigController getController() {
return mController;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
mView = getLayoutInflater().inflate(R.layout.wifi_dialog, null);
setView(mView);
setInverseBackgroundForced(true);
mController = new WifiConfigController(this, mView, mAccessPoint, mEdit);
super.onCreate(savedInstanceState);
if (mHideSubmitButton) {
mController.hideSubmitButton();
} else {
/* During creation, the submit button can be unavailable to determine
* visibility. Right after creation, update button visibility */
mController.enableSubmitIfAppropriate();
}
}
@Override
public boolean isEdit() {
return mEdit;
}
@Override
public Button getSubmitButton() {
return getButton(BUTTON_SUBMIT);
}
@Override
public Button getForgetButton() {
return getButton(BUTTON_FORGET);
}
@Override
public Button getCancelButton() {
return getButton(BUTTON_NEGATIVE);
}
@Override
public void setSubmitButton(CharSequence text) {
setButton(BUTTON_SUBMIT, text, mListener);
}
@Override
public void setForgetButton(CharSequence text) {
setButton(BUTTON_FORGET, text, mListener);
}
@Override
public void setCancelButton(CharSequence text) {
setButton(BUTTON_NEGATIVE, text, mListener);
}
}
- WpsDialog.java 文件(WpsPBC/WpsPIN 操作的弹窗的封装). WpsDialog.java 在线代码
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.NetworkInfo;
import android.net.NetworkInfo.DetailedState;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WpsInfo;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import java.util.Timer;
import java.util.TimerTask;
import com.android.settings.R;
/**
* Dialog to show WPS progress.
*/
public class WpsDialog extends AlertDialog {
private final static String TAG = "WpsDialog";
private static final String DIALOG_STATE = "android:dialogState";
private static final String DIALOG_MSG_STRING = "android:dialogMsg";
private View mView;
private TextView mTextView;
private ProgressBar mTimeoutBar;
private ProgressBar mProgressBar;
private Button mButton;
private Timer mTimer;
private static final int WPS_TIMEOUT_S = 120;
private WifiManager mWifiManager;
private WifiManager.WpsCallback mWpsListener;
private int mWpsSetup;
private final IntentFilter mFilter;
private BroadcastReceiver mReceiver;
private Context mContext;
private Handler mHandler = new Handler();
private String mMsgString = "";
private enum DialogState {
WPS_INIT,
WPS_START,
WPS_COMPLETE,
CONNECTED, //WPS + IP config is done
WPS_FAILED
}
DialogState mDialogState = DialogState.WPS_INIT;
public WpsDialog(Context context, int wpsSetup) {
super(context);
mContext = context;
mWpsSetup = wpsSetup;
class WpsListener extends WifiManager.WpsCallback {
public void onStarted(String pin) {
if (pin != null) {
updateDialog(DialogState.WPS_START, String.format(
mContext.getString(R.string.wifi_wps_onstart_pin), pin));
} else {
updateDialog(DialogState.WPS_START, mContext.getString(
R.string.wifi_wps_onstart_pbc));
}
}
public void onSucceeded() {
updateDialog(DialogState.WPS_COMPLETE,
mContext.getString(R.string.wifi_wps_complete));
}
public void onFailed(int reason) {
String msg;
switch (reason) {
case WifiManager.WPS_OVERLAP_ERROR:
msg = mContext.getString(R.string.wifi_wps_failed_overlap);
break;
case WifiManager.WPS_WEP_PROHIBITED:
msg = mContext.getString(R.string.wifi_wps_failed_wep);
break;
case WifiManager.WPS_TKIP_ONLY_PROHIBITED:
msg = mContext.getString(R.string.wifi_wps_failed_tkip);
break;
case WifiManager.IN_PROGRESS:
msg = mContext.getString(R.string.wifi_wps_in_progress);
break;
default:
msg = mContext.getString(R.string.wifi_wps_failed_generic);
break;
}
updateDialog(DialogState.WPS_FAILED, msg);
}
}
mWpsListener = new WpsListener();
mFilter = new IntentFilter();
mFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
handleEvent(context, intent);
}
};
setCanceledOnTouchOutside(false);
}
@Override
public Bundle onSaveInstanceState () {
Bundle bundle = super.onSaveInstanceState();
bundle.putString(DIALOG_STATE, mDialogState.toString());
bundle.putString(DIALOG_MSG_STRING, mMsgString.toString());
return bundle;
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
if (savedInstanceState != null) {
super.onRestoreInstanceState(savedInstanceState);
DialogState dialogState = mDialogState.valueOf(savedInstanceState.getString(DIALOG_STATE));
String msg = savedInstanceState.getString(DIALOG_MSG_STRING);
updateDialog(dialogState, msg);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
mView = getLayoutInflater().inflate(R.layout.wifi_wps_dialog, null);
mTextView = (TextView) mView.findViewById(R.id.wps_dialog_txt);
mTextView.setText(R.string.wifi_wps_setup_msg);
mTimeoutBar = ((ProgressBar) mView.findViewById(R.id.wps_timeout_bar));
mTimeoutBar.setMax(WPS_TIMEOUT_S);
mTimeoutBar.setProgress(0);
mProgressBar = ((ProgressBar) mView.findViewById(R.id.wps_progress_bar));
mProgressBar.setVisibility(View.GONE);
mButton = ((Button) mView.findViewById(R.id.wps_dialog_btn));
mButton.setText(R.string.wifi_cancel);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dismiss();
}
});
mWifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
setView(mView);
super.onCreate(savedInstanceState);
}
@Override
protected void onStart() {
/*
* increment timeout bar per second.
*/
mTimer = new Timer(false);
mTimer.schedule(new TimerTask() {
@Override
public void run() {
mHandler.post(new Runnable() {
@Override
public void run() {
mTimeoutBar.incrementProgressBy(1);
}
});
}
}, 1000, 1000);
mContext.registerReceiver(mReceiver, mFilter);
WpsInfo wpsConfig = new WpsInfo();
wpsConfig.setup = mWpsSetup;
mWifiManager.startWps(wpsConfig, mWpsListener);
}
@Override
protected void onStop() {
if (mDialogState != DialogState.WPS_COMPLETE) {
mWifiManager.cancelWps(null);
}
if (mReceiver != null) {
mContext.unregisterReceiver(mReceiver);
mReceiver = null;
}
if (mTimer != null) {
mTimer.cancel();
}
}
private void updateDialog(final DialogState state, final String msg) {
if (mDialogState.ordinal() >= state.ordinal()) {
//ignore.
return;
}
mDialogState = state;
mMsgString = msg;
mHandler.post(new Runnable() {
@Override
public void run() {
switch(state) {
case WPS_COMPLETE:
mTimeoutBar.setVisibility(View.GONE);
mProgressBar.setVisibility(View.VISIBLE);
break;
case CONNECTED:
case WPS_FAILED:
mButton.setText(mContext.getString(R.string.dlg_ok));
mTimeoutBar.setVisibility(View.GONE);
mProgressBar.setVisibility(View.GONE);
if (mReceiver != null) {
mContext.unregisterReceiver(mReceiver);
mReceiver = null;
}
break;
}
mTextView.setText(msg);
}
});
}
private void handleEvent(Context context, Intent intent) {
String action = intent.getAction();
if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(action)) {
NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(
WifiManager.EXTRA_NETWORK_INFO);
final NetworkInfo.DetailedState state = info.getDetailedState();
if (state == DetailedState.CONNECTED &&
mDialogState == DialogState.WPS_COMPLETE) {
WifiInfo wifiInfo = mWifiManager.getConnectionInfo();
if (wifiInfo != null) {
String msg = String.format(mContext.getString(
R.string.wifi_wps_connected), wifiInfo.getSSID());
updateDialog(DialogState.CONNECTED, msg);
}
}
}
}
}
- WriteWifiConfigToNfcDialog.java 文件(NFC 操作的弹窗封装). WriteWifiConfigToNfcDialog.java 在线代码
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.net.wifi.WifiManager;
import android.nfc.FormatException;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.nfc.tech.Ndef;
import android.os.Bundle;
import android.os.Handler;
import android.os.PowerManager;
import android.text.Editable;
import android.text.InputType;
import android.text.TextWatcher;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.android.settings.R;
import java.io.IOException;
class WriteWifiConfigToNfcDialog extends AlertDialog
implements TextWatcher, View.OnClickListener, CompoundButton.OnCheckedChangeListener {
private static final String NFC_TOKEN_MIME_TYPE = "application/vnd.wfa.wsc";
private static final String TAG = WriteWifiConfigToNfcDialog.class.getName().toString();
private static final String PASSWORD_FORMAT = "102700%s%s";
private static final int HEX_RADIX = 16;
private static final char[] hexArray = "0123456789ABCDEF".toCharArray();
private final PowerManager.WakeLock mWakeLock;
private AccessPoint mAccessPoint;
private View mView;
private Button mSubmitButton;
private Button mCancelButton;
private Handler mOnTextChangedHandler;
private TextView mPasswordView;
private TextView mLabelView;
private CheckBox mPasswordCheckBox;
private ProgressBar mProgressBar;
private WifiManager mWifiManager;
private String mWpsNfcConfigurationToken;
private Context mContext;
WriteWifiConfigToNfcDialog(Context context, AccessPoint accessPoint,
WifiManager wifiManager) {
super(context);
mContext = context;
mWakeLock = ((PowerManager) context.getSystemService(Context.POWER_SERVICE))
.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "WriteWifiConfigToNfcDialog:wakeLock");
mAccessPoint = accessPoint;
mOnTextChangedHandler = new Handler();
mWifiManager = wifiManager;
}
@Override
public void onCreate(Bundle savedInstanceState) {
mView = getLayoutInflater().inflate(R.layout.write_wifi_config_to_nfc, null);
setView(mView);
setInverseBackgroundForced(true);
setTitle(R.string.setup_wifi_nfc_tag);
setCancelable(true);
setButton(DialogInterface.BUTTON_NEUTRAL,
mContext.getResources().getString(R.string.write_tag), (OnClickListener) null);
setButton(DialogInterface.BUTTON_NEGATIVE,
mContext.getResources().getString(com.android.internal.R.string.cancel),
(OnClickListener) null);
mPasswordView = (TextView) mView.findViewById(R.id.password);
mLabelView = (TextView) mView.findViewById(R.id.password_label);
mPasswordView.addTextChangedListener(this);
mPasswordCheckBox = (CheckBox) mView.findViewById(R.id.show_password);
mPasswordCheckBox.setOnCheckedChangeListener(this);
mProgressBar = (ProgressBar) mView.findViewById(R.id.progress_bar);
super.onCreate(savedInstanceState);
mSubmitButton = getButton(DialogInterface.BUTTON_NEUTRAL);
mSubmitButton.setOnClickListener(this);
mSubmitButton.setEnabled(false);
mCancelButton = getButton(DialogInterface.BUTTON_NEGATIVE);
}
@Override
public void onClick(View v) {
mWakeLock.acquire();
String password = mPasswordView.getText().toString();
String wpsNfcConfigurationToken
= mWifiManager.getWpsNfcConfigurationToken(mAccessPoint.networkId);
String passwordHex = byteArrayToHexString(password.getBytes());
String passwordLength = password.length() >= HEX_RADIX
? Integer.toString(password.length(), HEX_RADIX)
: "0" + Character.forDigit(password.length(), HEX_RADIX);
passwordHex = String.format(PASSWORD_FORMAT, passwordLength, passwordHex).toUpperCase();
if (wpsNfcConfigurationToken.contains(passwordHex)) {
mWpsNfcConfigurationToken = wpsNfcConfigurationToken;
Activity activity = getOwnerActivity();
NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(activity);
nfcAdapter.enableReaderMode(activity, new NfcAdapter.ReaderCallback() {
@Override
public void onTagDiscovered(Tag tag) {
handleWriteNfcEvent(tag);
}
}, NfcAdapter.FLAG_READER_NFC_A |
NfcAdapter.FLAG_READER_NFC_B |
NfcAdapter.FLAG_READER_NFC_BARCODE |
NfcAdapter.FLAG_READER_NFC_F |
NfcAdapter.FLAG_READER_NFC_V,
null);
mPasswordView.setVisibility(View.GONE);
mPasswordCheckBox.setVisibility(View.GONE);
mSubmitButton.setVisibility(View.GONE);
InputMethodManager imm = (InputMethodManager)
getOwnerActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(mPasswordView.getWindowToken(), 0);
mLabelView.setText(R.string.status_awaiting_tap);
mView.findViewById(R.id.password_layout).setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
mProgressBar.setVisibility(View.VISIBLE);
} else {
mLabelView.setText(R.string.status_invalid_password);
}
}
private void handleWriteNfcEvent(Tag tag) {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
if (ndef.isWritable()) {
NdefRecord record = NdefRecord.createMime(
NFC_TOKEN_MIME_TYPE,
hexStringToByteArray(mWpsNfcConfigurationToken));
try {
ndef.connect();
ndef.writeNdefMessage(new NdefMessage(record));
getOwnerActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
mProgressBar.setVisibility(View.GONE);
}
});
setViewText(mLabelView, R.string.status_write_success);
setViewText(mCancelButton, com.android.internal.R.string.done_label);
} catch (IOException e) {
setViewText(mLabelView, R.string.status_failed_to_write);
Log.e(TAG, "Unable to write Wi-Fi config to NFC tag.", e);
return;
} catch (FormatException e) {
setViewText(mLabelView, R.string.status_failed_to_write);
Log.e(TAG, "Unable to write Wi-Fi config to NFC tag.", e);
return;
}
} else {
setViewText(mLabelView, R.string.status_tag_not_writable);
Log.e(TAG, "Tag is not writable");
}
} else {
setViewText(mLabelView, R.string.status_tag_not_writable);
Log.e(TAG, "Tag does not support NDEF");
}
}
@Override
public void dismiss() {
if (mWakeLock.isHeld()) {
mWakeLock.release();
}
super.dismiss();
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mOnTextChangedHandler.post(new Runnable() {
@Override
public void run() {
enableSubmitIfAppropriate();
}
});
}
private void enableSubmitIfAppropriate() {
if (mPasswordView != null) {
if (mAccessPoint.security == AccessPoint.SECURITY_WEP) {
mSubmitButton.setEnabled(mPasswordView.length() > 0);
} else if (mAccessPoint.security == AccessPoint.SECURITY_PSK) {
mSubmitButton.setEnabled(mPasswordView.length() >= 8);
}
} else {
mSubmitButton.setEnabled(false);
}
}
private void setViewText(final TextView view, final int resid) {
getOwnerActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
view.setText(resid);
}
});
}
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
mPasswordView.setInputType(
InputType.TYPE_CLASS_TEXT |
(isChecked
? InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
: InputType.TYPE_TEXT_VARIATION_PASSWORD));
}
private static byte[] hexStringToByteArray(String s) {
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), HEX_RADIX) << 4)
+ Character.digit(s.charAt(i + 1), HEX_RADIX));
}
return data;
}
private static String byteArrayToHexString(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for ( int j = 0; j < bytes.length; j++ ) {
int v = bytes[j] & 0xFF;
hexChars[j * 2] = hexArray[v >>> 4];
hexChars[j * 2 + 1] = hexArray[v & 0x0F];
}
return new String(hexChars);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
@Override
public void afterTextChanged(Editable s) {}
}
- WifiConfigController.java 文件(Wifi 连接/编辑/保存/添加/忘记 等核心UI控制类和高级设置操作类). WifiConfigController.java 在线代码
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.wifi;
import static android.net.wifi.WifiConfiguration.INVALID_NETWORK_ID;
import android.app.ActivityManager;
import android.content.Context;
import android.content.res.Resources;
import android.net.IpConfiguration;
import android.net.IpConfiguration.IpAssignment;
import android.net.IpConfiguration.ProxySettings;
import android.net.LinkAddress;
import android.net.NetworkInfo.DetailedState;
import android.net.NetworkUtils;
import android.net.ProxyInfo;
import android.net.RouteInfo;
import android.net.StaticIpConfiguration;
import android.net.Uri;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiConfiguration.AuthAlgorithm;
import android.net.wifi.WifiConfiguration.KeyMgmt;
import android.net.wifi.WifiEnterpriseConfig;
import android.net.wifi.WifiEnterpriseConfig.Eap;
import android.net.wifi.WifiEnterpriseConfig.Phase2;
import android.net.wifi.WifiInfo;
import android.os.Handler;
import android.os.UserHandle;
import android.security.Credentials;
import android.security.KeyStore;
import android.text.Editable;
import android.text.InputType;
import android.text.TextWatcher;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import com.android.settings.ProxySelector;
import com.android.settings.R;
import java.net.InetAddress;
import java.net.Inet4Address;
import java.util.Iterator;
/**
* The class for allowing UIs like {@link WifiDialog} and {@link WifiConfigUiBase} to
* share the logic for controlling buttons, text fields, etc.
*/
public class WifiConfigController implements TextWatcher,
AdapterView.OnItemSelectedListener, OnCheckedChangeListener {
private static final String TAG = "WifiConfigController";
private final WifiConfigUiBase mConfigUi;
private final View mView;
private final AccessPoint mAccessPoint;
/* This value comes from "wifi_ip_settings" resource array */
private static final int DHCP = 0;
private static final int STATIC_IP = 1;
/* These values come from "wifi_proxy_settings" resource array */
public static final int PROXY_NONE = 0;
public static final int PROXY_STATIC = 1;
public static final int PROXY_PAC = 2;
/* These values come from "wifi_eap_method" resource array */
public static final int WIFI_EAP_METHOD_PEAP = 0;
public static final int WIFI_EAP_METHOD_TLS = 1;
public static final int WIFI_EAP_METHOD_TTLS = 2;
public static final int WIFI_EAP_METHOD_PWD = 3;
/* These values come from "wifi_peap_phase2_entries" resource array */
public static final int WIFI_PEAP_PHASE2_NONE = 0;
public static final int WIFI_PEAP_PHASE2_MSCHAPV2 = 1;
public static final int WIFI_PEAP_PHASE2_GTC = 2;
/* Phase2 methods supported by PEAP are limited */
private final ArrayAdapter<String> PHASE2_PEAP_ADAPTER;
/* Full list of phase2 methods */
private final ArrayAdapter<String> PHASE2_FULL_ADAPTER;
// True when this instance is used in SetupWizard XL context.
private final boolean mInXlSetupWizard;
private final Handler mTextViewChangedHandler;
// e.g. AccessPoint.SECURITY_NONE
private int mAccessPointSecurity;
private TextView mPasswordView;
private String unspecifiedCert = "unspecified";
private static final int unspecifiedCertIndex = 0;
private Spinner mSecuritySpinner;
private Spinner mEapMethodSpinner;
private Spinner mEapCaCertSpinner;
private Spinner mPhase2Spinner;
// Associated with mPhase2Spinner, one of PHASE2_FULL_ADAPTER or PHASE2_PEAP_ADAPTER
private ArrayAdapter<String> mPhase2Adapter;
private Spinner mEapUserCertSpinner;
private TextView mEapIdentityView;
private TextView mEapAnonymousView;
private Spinner mIpSettingsSpinner;
private TextView mIpAddressView;
private TextView mGatewayView;
private TextView mNetworkPrefixLengthView;
private TextView mDns1View;
private TextView mDns2View;
private Spinner mProxySettingsSpinner;
private TextView mProxyHostView;
private TextView mProxyPortView;
private TextView mProxyExclusionListView;
private TextView mProxyPacView;
private IpAssignment mIpAssignment = IpAssignment.UNASSIGNED;
private ProxySettings mProxySettings = ProxySettings.UNASSIGNED;
private ProxyInfo mHttpProxy = null;
private StaticIpConfiguration mStaticIpConfiguration = null;
private String[] mLevels;
private boolean mEdit;
private TextView mSsidView;
private Context mContext;
public WifiConfigController(
WifiConfigUiBase parent, View view, AccessPoint accessPoint, boolean edit) {
mConfigUi = parent;
mInXlSetupWizard = (parent instanceof WifiConfigUiForSetupWizardXL);
mView = view;
mAccessPoint = accessPoint;
mAccessPointSecurity = (accessPoint == null) ? AccessPoint.SECURITY_NONE :
accessPoint.security;
mEdit = edit;
mTextViewChangedHandler = new Handler();
mContext = mConfigUi.getContext();
final Resources res = mContext.getResources();
mLevels = res.getStringArray(R.array.wifi_signal);
PHASE2_PEAP_ADAPTER = new ArrayAdapter<String>(
mContext, android.R.layout.simple_spinner_item,
res.getStringArray(R.array.wifi_peap_phase2_entries));
PHASE2_PEAP_ADAPTER.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
PHASE2_FULL_ADAPTER = new ArrayAdapter<String>(
mContext, android.R.layout.simple_spinner_item,
res.getStringArray(R.array.wifi_phase2_entries));
PHASE2_FULL_ADAPTER.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
unspecifiedCert = mContext.getString(R.string.wifi_unspecified);
mIpSettingsSpinner = (Spinner) mView.findViewById(R.id.ip_settings);
mIpSettingsSpinner.setOnItemSelectedListener(this);
mProxySettingsSpinner = (Spinner) mView.findViewById(R.id.proxy_settings);
mProxySettingsSpinner.setOnItemSelectedListener(this);
if (mAccessPoint == null) { // new network
mConfigUi.setTitle(R.string.wifi_add_network);
mSsidView = (TextView) mView.findViewById(R.id.ssid);
mSsidView.addTextChangedListener(this);
mSecuritySpinner = ((Spinner) mView.findViewById(R.id.security));
mSecuritySpinner.setOnItemSelectedListener(this);
if (mInXlSetupWizard) {
mView.findViewById(R.id.type_ssid).setVisibility(View.VISIBLE);
mView.findViewById(R.id.type_security).setVisibility(View.VISIBLE);
// We want custom layout. The content must be same as the other cases.
ArrayAdapter<String> adapter = new ArrayAdapter<String>(mContext,
R.layout.wifi_setup_custom_list_item_1, android.R.id.text1,
res.getStringArray(R.array.wifi_security_no_eap));
mSecuritySpinner.setAdapter(adapter);
} else {
mView.findViewById(R.id.type).setVisibility(View.VISIBLE);
}
showIpConfigFields();
showProxyFields();
mView.findViewById(R.id.wifi_advanced_toggle).setVisibility(View.VISIBLE);
((CheckBox)mView.findViewById(R.id.wifi_advanced_togglebox))
.setOnCheckedChangeListener(this);
mConfigUi.setSubmitButton(res.getString(R.string.wifi_save));
} else {
mConfigUi.setTitle(mAccessPoint.ssid);
ViewGroup group = (ViewGroup) mView.findViewById(R.id.info);
boolean showAdvancedFields = false;
if (mAccessPoint.networkId != INVALID_NETWORK_ID) {
WifiConfiguration config = mAccessPoint.getConfig();
if (config.getIpAssignment() == IpAssignment.STATIC) {
mIpSettingsSpinner.setSelection(STATIC_IP);
showAdvancedFields = true;
// Display IP address.
StaticIpConfiguration staticConfig = config.getStaticIpConfiguration();
if (staticConfig != null && staticConfig.ipAddress != null) {
addRow(group, R.string.wifi_ip_address,
staticConfig.ipAddress.getAddress().getHostAddress());
}
} else {
mIpSettingsSpinner.setSelection(DHCP);
}
if (config.getProxySettings() == ProxySettings.STATIC) {
mProxySettingsSpinner.setSelection(PROXY_STATIC);
showAdvancedFields = true;
} else if (config.getProxySettings() == ProxySettings.PAC) {
mProxySettingsSpinner.setSelection(PROXY_PAC);
showAdvancedFields = true;
} else {
mProxySettingsSpinner.setSelection(PROXY_NONE);
}
}
if (mAccessPoint.networkId == INVALID_NETWORK_ID || mEdit) {
showSecurityFields();
showIpConfigFields();
showProxyFields();
mView.findViewById(R.id.wifi_advanced_toggle).setVisibility(View.VISIBLE);
((CheckBox)mView.findViewById(R.id.wifi_advanced_togglebox))
.setOnCheckedChangeListener(this);
if (showAdvancedFields) {
((CheckBox)mView.findViewById(R.id.wifi_advanced_togglebox)).setChecked(true);
mView.findViewById(R.id.wifi_advanced_fields).setVisibility(View.VISIBLE);
}
}
if (mEdit) {
mConfigUi.setSubmitButton(res.getString(R.string.wifi_save));
} else {
final DetailedState state = mAccessPoint.getState();
final String signalLevel = getSignalString();
if (state == null && signalLevel != null) {
mConfigUi.setSubmitButton(res.getString(R.string.wifi_connect));
} else {
if (state != null) {
addRow(group, R.string.wifi_status, Summary.get(mConfigUi.getContext(),
state));
}
if (signalLevel != null) {
addRow(group, R.string.wifi_signal, signalLevel);
}
WifiInfo info = mAccessPoint.getInfo();
if (info != null && info.getLinkSpeed() != -1) {
addRow(group, R.string.wifi_speed, info.getLinkSpeed()
+ WifiInfo.LINK_SPEED_UNITS);
}
if (info != null && info.getFrequency() != -1) {
final int frequency = info.getFrequency();
String band = null;
if (frequency >= AccessPoint.LOWER_FREQ_24GHZ
&& frequency < AccessPoint.HIGHER_FREQ_24GHZ) {
band = res.getString(R.string.wifi_band_24ghz);
} else if (frequency >= AccessPoint.LOWER_FREQ_5GHZ
&& frequency < AccessPoint.HIGHER_FREQ_5GHZ) {
band = res.getString(R.string.wifi_band_5ghz);
} else {
Log.e(TAG, "Unexpected frequency " + frequency);
}
if (band != null) {
addRow(group, R.string.wifi_frequency, band);
}
}
addRow(group, R.string.wifi_security, mAccessPoint.getSecurityString(false));
mView.findViewById(R.id.ip_fields).setVisibility(View.GONE);
}
if (mAccessPoint.networkId != INVALID_NETWORK_ID
&& ActivityManager.getCurrentUser() == UserHandle.USER_OWNER) {
mConfigUi.setForgetButton(res.getString(R.string.wifi_forget));
}
}
}
if (mEdit || (mAccessPoint.getState() == null && mAccessPoint.getLevel() != -1)){
mConfigUi.setCancelButton(res.getString(R.string.wifi_cancel));
}else{
mConfigUi.setCancelButton(res.getString(R.string.wifi_display_options_done));
}
if (mConfigUi.getSubmitButton() != null) {
enableSubmitIfAppropriate();
}
}
private void addRow(ViewGroup group, int name, String value) {
View row = mConfigUi.getLayoutInflater().inflate(R.layout.wifi_dialog_row, group, false);
((TextView) row.findViewById(R.id.name)).setText(name);
((TextView) row.findViewById(R.id.value)).setText(value);
group.addView(row);
}
private String getSignalString(){
final int level = mAccessPoint.getLevel();
return (level > -1 && level < mLevels.length) ? mLevels[level] : null;
}
void hideSubmitButton() {
Button submit = mConfigUi.getSubmitButton();
if (submit == null) return;
submit.setVisibility(View.GONE);
}
/* show submit button if password, ip and proxy settings are valid */
void enableSubmitIfAppropriate() {
Button submit = mConfigUi.getSubmitButton();
if (submit == null) return;
boolean enabled = false;
boolean passwordInvalid = false;
if (mPasswordView != null &&
((mAccessPointSecurity == AccessPoint.SECURITY_WEP && mPasswordView.length() == 0) ||
(mAccessPointSecurity == AccessPoint.SECURITY_PSK && mPasswordView.length() < 8))) {
passwordInvalid = true;
}
if ((mSsidView != null && mSsidView.length() == 0) ||
((mAccessPoint == null || mAccessPoint.networkId == INVALID_NETWORK_ID) &&
passwordInvalid)) {
enabled = false;
} else {
if (ipAndProxyFieldsAreValid()) {
enabled = true;
} else {
enabled = false;
}
}
submit.setEnabled(enabled);
}
/* package */ WifiConfiguration getConfig() {
if (mAccessPoint != null && mAccessPoint.networkId != INVALID_NETWORK_ID && !mEdit) {
return null;
}
WifiConfiguration config = new WifiConfiguration();
if (mAccessPoint == null) {
config.SSID = AccessPoint.convertToQuotedString(
mSsidView.getText().toString());
// If the user adds a network manually, assume that it is hidden.
config.hiddenSSID = true;
} else if (mAccessPoint.networkId == INVALID_NETWORK_ID) {
config.SSID = AccessPoint.convertToQuotedString(
mAccessPoint.ssid);
} else {
config.networkId = mAccessPoint.networkId;
}
switch (mAccessPointSecurity) {
case AccessPoint.SECURITY_NONE:
config.allowedKeyManagement.set(KeyMgmt.NONE);
break;
case AccessPoint.SECURITY_WEP:
config.allowedKeyManagement.set(KeyMgmt.NONE);
config.allowedAuthAlgorithms.set(AuthAlgorithm.OPEN);
config.allowedAuthAlgorithms.set(AuthAlgorithm.SHARED);
if (mPasswordView.length() != 0) {
int length = mPasswordView.length();
String password = mPasswordView.getText().toString();
// WEP-40, WEP-104, and 256-bit WEP (WEP-232?)
if ((length == 10 || length == 26 || length == 58) &&
password.matches("[0-9A-Fa-f]*")) {
config.wepKeys[0] = password;
} else {
config.wepKeys[0] = '"' + password + '"';
}
}
break;
case AccessPoint.SECURITY_PSK:
config.allowedKeyManagement.set(KeyMgmt.WPA_PSK);
if (mPasswordView.length() != 0) {
String password = mPasswordView.getText().toString();
if (password.matches("[0-9A-Fa-f]{64}")) {
config.preSharedKey = password;
} else {
config.preSharedKey = '"' + password + '"';
}
}
break;
case AccessPoint.SECURITY_EAP:
config.allowedKeyManagement.set(KeyMgmt.WPA_EAP);
config.allowedKeyManagement.set(KeyMgmt.IEEE8021X);
config.enterpriseConfig = new WifiEnterpriseConfig();
int eapMethod = mEapMethodSpinner.getSelectedItemPosition();
int phase2Method = mPhase2Spinner.getSelectedItemPosition();
config.enterpriseConfig.setEapMethod(eapMethod);
switch (eapMethod) {
case Eap.PEAP:
// PEAP supports limited phase2 values
// Map the index from the PHASE2_PEAP_ADAPTER to the one used
// by the API which has the full list of PEAP methods.
switch(phase2Method) {
case WIFI_PEAP_PHASE2_NONE:
config.enterpriseConfig.setPhase2Method(Phase2.NONE);
break;
case WIFI_PEAP_PHASE2_MSCHAPV2:
config.enterpriseConfig.setPhase2Method(Phase2.MSCHAPV2);
break;
case WIFI_PEAP_PHASE2_GTC:
config.enterpriseConfig.setPhase2Method(Phase2.GTC);
break;
default:
Log.e(TAG, "Unknown phase2 method" + phase2Method);
break;
}
break;
default:
// The default index from PHASE2_FULL_ADAPTER maps to the API
config.enterpriseConfig.setPhase2Method(phase2Method);
break;
}
String caCert = (String) mEapCaCertSpinner.getSelectedItem();
if (caCert.equals(unspecifiedCert)) caCert = "";
config.enterpriseConfig.setCaCertificateAlias(caCert);
String clientCert = (String) mEapUserCertSpinner.getSelectedItem();
if (clientCert.equals(unspecifiedCert)) clientCert = "";
config.enterpriseConfig.setClientCertificateAlias(clientCert);
config.enterpriseConfig.setIdentity(mEapIdentityView.getText().toString());
config.enterpriseConfig.setAnonymousIdentity(
mEapAnonymousView.getText().toString());
if (mPasswordView.isShown()) {
// For security reasons, a previous password is not displayed to user.
// Update only if it has been changed.
if (mPasswordView.length() > 0) {
config.enterpriseConfig.setPassword(mPasswordView.getText().toString());
}
} else {
// clear password
config.enterpriseConfig.setPassword(mPasswordView.getText().toString());
}
break;
default:
return null;
}
config.setIpConfiguration(
new IpConfiguration(mIpAssignment, mProxySettings,
mStaticIpConfiguration, mHttpProxy));
return config;
}
private boolean ipAndProxyFieldsAreValid() {
mIpAssignment = (mIpSettingsSpinner != null &&
mIpSettingsSpinner.getSelectedItemPosition() == STATIC_IP) ?
IpAssignment.STATIC : IpAssignment.DHCP;
if (mIpAssignment == IpAssignment.STATIC) {
mStaticIpConfiguration = new StaticIpConfiguration();
int result = validateIpConfigFields(mStaticIpConfiguration);
if (result != 0) {
return false;
}
}
final int selectedPosition = mProxySettingsSpinner.getSelectedItemPosition();
mProxySettings = ProxySettings.NONE;
mHttpProxy = null;
if (selectedPosition == PROXY_STATIC && mProxyHostView != null) {
mProxySettings = ProxySettings.STATIC;
String host = mProxyHostView.getText().toString();
String portStr = mProxyPortView.getText().toString();
String exclusionList = mProxyExclusionListView.getText().toString();
int port = 0;
int result = 0;
try {
port = Integer.parseInt(portStr);
result = ProxySelector.validate(host, portStr, exclusionList);
} catch (NumberFormatException e) {
result = R.string.proxy_error_invalid_port;
}
if (result == 0) {
mHttpProxy = new ProxyInfo(host, port, exclusionList);
} else {
return false;
}
} else if (selectedPosition == PROXY_PAC && mProxyPacView != null) {
mProxySettings = ProxySettings.PAC;
CharSequence uriSequence = mProxyPacView.getText();
if (TextUtils.isEmpty(uriSequence)) {
return false;
}
Uri uri = Uri.parse(uriSequence.toString());
if (uri == null) {
return false;
}
mHttpProxy = new ProxyInfo(uri);
}
return true;
}
private Inet4Address getIPv4Address(String text) {
try {
return (Inet4Address) NetworkUtils.numericToInetAddress(text);
} catch (IllegalArgumentException|ClassCastException e) {
return null;
}
}
private int validateIpConfigFields(StaticIpConfiguration staticIpConfiguration) {
if (mIpAddressView == null) return 0;
String ipAddr = mIpAddressView.getText().toString();
if (TextUtils.isEmpty(ipAddr)) return R.string.wifi_ip_settings_invalid_ip_address;
Inet4Address inetAddr = getIPv4Address(ipAddr);
if (inetAddr == null) {
return R.string.wifi_ip_settings_invalid_ip_address;
}
int networkPrefixLength = -1;
try {
networkPrefixLength = Integer.parseInt(mNetworkPrefixLengthView.getText().toString());
if (networkPrefixLength < 0 || networkPrefixLength > 32) {
return R.string.wifi_ip_settings_invalid_network_prefix_length;
}
staticIpConfiguration.ipAddress = new LinkAddress(inetAddr, networkPrefixLength);
} catch (NumberFormatException e) {
// Set the hint as default after user types in ip address
mNetworkPrefixLengthView.setText(mConfigUi.getContext().getString(
R.string.wifi_network_prefix_length_hint));
}
String gateway = mGatewayView.getText().toString();
if (TextUtils.isEmpty(gateway)) {
try {
//Extract a default gateway from IP address
InetAddress netPart = NetworkUtils.getNetworkPart(inetAddr, networkPrefixLength);
byte[] addr = netPart.getAddress();
addr[addr.length-1] = 1;
mGatewayView.setText(InetAddress.getByAddress(addr).getHostAddress());
} catch (RuntimeException ee) {
} catch (java.net.UnknownHostException u) {
}
} else {
InetAddress gatewayAddr = getIPv4Address(gateway);
if (gatewayAddr == null) {
return R.string.wifi_ip_settings_invalid_gateway;
}
staticIpConfiguration.gateway = gatewayAddr;
}
String dns = mDns1View.getText().toString();
InetAddress dnsAddr = null;
if (TextUtils.isEmpty(dns)) {
//If everything else is valid, provide hint as a default option
mDns1View.setText(mConfigUi.getContext().getString(R.string.wifi_dns1_hint));
} else {
dnsAddr = getIPv4Address(dns);
if (dnsAddr == null) {
return R.string.wifi_ip_settings_invalid_dns;
}
staticIpConfiguration.dnsServers.add(dnsAddr);
}
if (mDns2View.length() > 0) {
dns = mDns2View.getText().toString();
dnsAddr = getIPv4Address(dns);
if (dnsAddr == null) {
return R.string.wifi_ip_settings_invalid_dns;
}
staticIpConfiguration.dnsServers.add(dnsAddr);
}
return 0;
}
private void showSecurityFields() {
if (mInXlSetupWizard) {
// Note: XL SetupWizard won't hide "EAP" settings here.
if (!((WifiSettingsForSetupWizardXL)mConfigUi.getContext()).initSecurityFields(mView,
mAccessPointSecurity)) {
return;
}
}
if (mAccessPointSecurity == AccessPoint.SECURITY_NONE) {
mView.findViewById(R.id.security_fields).setVisibility(View.GONE);
return;
}
mView.findViewById(R.id.security_fields).setVisibility(View.VISIBLE);
if (mPasswordView == null) {
mPasswordView = (TextView) mView.findViewById(R.id.password);
mPasswordView.addTextChangedListener(this);
((CheckBox) mView.findViewById(R.id.show_password))
.setOnCheckedChangeListener(this);
if (mAccessPoint != null && mAccessPoint.networkId != INVALID_NETWORK_ID) {
mPasswordView.setHint(R.string.wifi_unchanged);
}
}
if (mAccessPointSecurity != AccessPoint.SECURITY_EAP) {
mView.findViewById(R.id.eap).setVisibility(View.GONE);
return;
}
mView.findViewById(R.id.eap).setVisibility(View.VISIBLE);
if (mEapMethodSpinner == null) {
mEapMethodSpinner = (Spinner) mView.findViewById(R.id.method);
mEapMethodSpinner.setOnItemSelectedListener(this);
mPhase2Spinner = (Spinner) mView.findViewById(R.id.phase2);
mEapCaCertSpinner = (Spinner) mView.findViewById(R.id.ca_cert);
mEapUserCertSpinner = (Spinner) mView.findViewById(R.id.user_cert);
mEapIdentityView = (TextView) mView.findViewById(R.id.identity);
mEapAnonymousView = (TextView) mView.findViewById(R.id.anonymous);
loadCertificates(mEapCaCertSpinner, Credentials.CA_CERTIFICATE);
loadCertificates(mEapUserCertSpinner, Credentials.USER_PRIVATE_KEY);
// Modifying an existing network
if (mAccessPoint != null && mAccessPoint.networkId != INVALID_NETWORK_ID) {
WifiEnterpriseConfig enterpriseConfig = mAccessPoint.getConfig().enterpriseConfig;
int eapMethod = enterpriseConfig.getEapMethod();
int phase2Method = enterpriseConfig.getPhase2Method();
mEapMethodSpinner.setSelection(eapMethod);
showEapFieldsByMethod(eapMethod);
switch (eapMethod) {
case Eap.PEAP:
switch (phase2Method) {
case Phase2.NONE:
mPhase2Spinner.setSelection(WIFI_PEAP_PHASE2_NONE);
break;
case Phase2.MSCHAPV2:
mPhase2Spinner.setSelection(WIFI_PEAP_PHASE2_MSCHAPV2);
break;
case Phase2.GTC:
mPhase2Spinner.setSelection(WIFI_PEAP_PHASE2_GTC);
break;
default:
Log.e(TAG, "Invalid phase 2 method " + phase2Method);
break;
}
break;
default:
mPhase2Spinner.setSelection(phase2Method);
break;
}
setSelection(mEapCaCertSpinner, enterpriseConfig.getCaCertificateAlias());
setSelection(mEapUserCertSpinner, enterpriseConfig.getClientCertificateAlias());
mEapIdentityView.setText(enterpriseConfig.getIdentity());
mEapAnonymousView.setText(enterpriseConfig.getAnonymousIdentity());
} else {
// Choose a default for a new network and show only appropriate
// fields
mEapMethodSpinner.setSelection(Eap.PEAP);
showEapFieldsByMethod(Eap.PEAP);
}
} else {
showEapFieldsByMethod(mEapMethodSpinner.getSelectedItemPosition());
}
}
/**
* EAP-PWD valid fields include
* identity
* password
* EAP-PEAP valid fields include
* phase2: MSCHAPV2, GTC
* ca_cert
* identity
* anonymous_identity
* password
* EAP-TLS valid fields include
* user_cert
* ca_cert
* identity
* EAP-TTLS valid fields include
* phase2: PAP, MSCHAP, MSCHAPV2, GTC
* ca_cert
* identity
* anonymous_identity
* password
*/
private void showEapFieldsByMethod(int eapMethod) {
// Common defaults
mView.findViewById(R.id.l_method).setVisibility(View.VISIBLE);
mView.findViewById(R.id.l_identity).setVisibility(View.VISIBLE);
// Defaults for most of the EAP methods and over-riden by
// by certain EAP methods
mView.findViewById(R.id.l_ca_cert).setVisibility(View.VISIBLE);
mView.findViewById(R.id.password_layout).setVisibility(View.VISIBLE);
mView.findViewById(R.id.show_password_layout).setVisibility(View.VISIBLE);
Context context = mConfigUi.getContext();
switch (eapMethod) {
case WIFI_EAP_METHOD_PWD:
setPhase2Invisible();
setCaCertInvisible();
setAnonymousIdentInvisible();
setUserCertInvisible();
break;
case WIFI_EAP_METHOD_TLS:
mView.findViewById(R.id.l_user_cert).setVisibility(View.VISIBLE);
setPhase2Invisible();
setAnonymousIdentInvisible();
setPasswordInvisible();
break;
case WIFI_EAP_METHOD_PEAP:
// Reset adapter if needed
if (mPhase2Adapter != PHASE2_PEAP_ADAPTER) {
mPhase2Adapter = PHASE2_PEAP_ADAPTER;
mPhase2Spinner.setAdapter(mPhase2Adapter);
}
mView.findViewById(R.id.l_phase2).setVisibility(View.VISIBLE);
mView.findViewById(R.id.l_anonymous).setVisibility(View.VISIBLE);
setUserCertInvisible();
break;
case WIFI_EAP_METHOD_TTLS:
// Reset adapter if needed
if (mPhase2Adapter != PHASE2_FULL_ADAPTER) {
mPhase2Adapter = PHASE2_FULL_ADAPTER;
mPhase2Spinner.setAdapter(mPhase2Adapter);
}
mView.findViewById(R.id.l_phase2).setVisibility(View.VISIBLE);
mView.findViewById(R.id.l_anonymous).setVisibility(View.VISIBLE);
setUserCertInvisible();
break;
}
}
private void setPhase2Invisible() {
mView.findViewById(R.id.l_phase2).setVisibility(View.GONE);
mPhase2Spinner.setSelection(Phase2.NONE);
}
private void setCaCertInvisible() {
mView.findViewById(R.id.l_ca_cert).setVisibility(View.GONE);
mEapCaCertSpinner.setSelection(unspecifiedCertIndex);
}
private void setUserCertInvisible() {
mView.findViewById(R.id.l_user_cert).setVisibility(View.GONE);
mEapUserCertSpinner.setSelection(unspecifiedCertIndex);
}
private void setAnonymousIdentInvisible() {
mView.findViewById(R.id.l_anonymous).setVisibility(View.GONE);
mEapAnonymousView.setText("");
}
private void setPasswordInvisible() {
mPasswordView.setText("");
mView.findViewById(R.id.password_layout).setVisibility(View.GONE);
mView.findViewById(R.id.show_password_layout).setVisibility(View.GONE);
}
private void showIpConfigFields() {
WifiConfiguration config = null;
mView.findViewById(R.id.ip_fields).setVisibility(View.VISIBLE);
if (mAccessPoint != null && mAccessPoint.networkId != INVALID_NETWORK_ID) {
config = mAccessPoint.getConfig();
}
if (mIpSettingsSpinner.getSelectedItemPosition() == STATIC_IP) {
mView.findViewById(R.id.staticip).setVisibility(View.VISIBLE);
if (mIpAddressView == null) {
mIpAddressView = (TextView) mView.findViewById(R.id.ipaddress);
mIpAddressView.addTextChangedListener(this);
mGatewayView = (TextView) mView.findViewById(R.id.gateway);
mGatewayView.addTextChangedListener(this);
mNetworkPrefixLengthView = (TextView) mView.findViewById(
R.id.network_prefix_length);
mNetworkPrefixLengthView.addTextChangedListener(this);
mDns1View = (TextView) mView.findViewById(R.id.dns1);
mDns1View.addTextChangedListener(this);
mDns2View = (TextView) mView.findViewById(R.id.dns2);
mDns2View.addTextChangedListener(this);
}
if (config != null) {
StaticIpConfiguration staticConfig = config.getStaticIpConfiguration();
if (staticConfig != null) {
if (staticConfig.ipAddress != null) {
mIpAddressView.setText(
staticConfig.ipAddress.getAddress().getHostAddress());
mNetworkPrefixLengthView.setText(Integer.toString(staticConfig.ipAddress
.getNetworkPrefixLength()));
}
if (staticConfig.gateway != null) {
mGatewayView.setText(staticConfig.gateway.getHostAddress());
}
Iterator<InetAddress> dnsIterator = staticConfig.dnsServers.iterator();
if (dnsIterator.hasNext()) {
mDns1View.setText(dnsIterator.next().getHostAddress());
}
if (dnsIterator.hasNext()) {
mDns2View.setText(dnsIterator.next().getHostAddress());
}
}
}
} else {
mView.findViewById(R.id.staticip).setVisibility(View.GONE);
}
}
private void showProxyFields() {
WifiConfiguration config = null;
mView.findViewById(R.id.proxy_settings_fields).setVisibility(View.VISIBLE);
if (mAccessPoint != null && mAccessPoint.networkId != INVALID_NETWORK_ID) {
config = mAccessPoint.getConfig();
}
if (mProxySettingsSpinner.getSelectedItemPosition() == PROXY_STATIC) {
setVisibility(R.id.proxy_warning_limited_support, View.VISIBLE);
setVisibility(R.id.proxy_fields, View.VISIBLE);
setVisibility(R.id.proxy_pac_field, View.GONE);
if (mProxyHostView == null) {
mProxyHostView = (TextView) mView.findViewById(R.id.proxy_hostname);
mProxyHostView.addTextChangedListener(this);
mProxyPortView = (TextView) mView.findViewById(R.id.proxy_port);
mProxyPortView.addTextChangedListener(this);
mProxyExclusionListView = (TextView) mView.findViewById(R.id.proxy_exclusionlist);
mProxyExclusionListView.addTextChangedListener(this);
}
if (config != null) {
ProxyInfo proxyProperties = config.getHttpProxy();
if (proxyProperties != null) {
mProxyHostView.setText(proxyProperties.getHost());
mProxyPortView.setText(Integer.toString(proxyProperties.getPort()));
mProxyExclusionListView.setText(proxyProperties.getExclusionListAsString());
}
}
} else if (mProxySettingsSpinner.getSelectedItemPosition() == PROXY_PAC) {
setVisibility(R.id.proxy_warning_limited_support, View.GONE);
setVisibility(R.id.proxy_fields, View.GONE);
setVisibility(R.id.proxy_pac_field, View.VISIBLE);
if (mProxyPacView == null) {
mProxyPacView = (TextView) mView.findViewById(R.id.proxy_pac);
mProxyPacView.addTextChangedListener(this);
}
if (config != null) {
ProxyInfo proxyInfo = config.getHttpProxy();
if (proxyInfo != null) {
mProxyPacView.setText(proxyInfo.getPacFileUrl().toString());
}
}
} else {
setVisibility(R.id.proxy_warning_limited_support, View.GONE);
setVisibility(R.id.proxy_fields, View.GONE);
setVisibility(R.id.proxy_pac_field, View.GONE);
}
}
private void setVisibility(int id, int visibility) {
final View v = mView.findViewById(id);
if (v != null) {
v.setVisibility(visibility);
}
}
private void loadCertificates(Spinner spinner, String prefix) {
final Context context = mConfigUi.getContext();
String[] certs = KeyStore.getInstance().saw(prefix, android.os.Process.WIFI_UID);
if (certs == null || certs.length == 0) {
certs = new String[] {unspecifiedCert};
} else {
final String[] array = new String[certs.length + 1];
array[0] = unspecifiedCert;
System.arraycopy(certs, 0, array, 1, certs.length);
certs = array;
}
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(
context, android.R.layout.simple_spinner_item, certs);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
}
private void setSelection(Spinner spinner, String value) {
if (value != null) {
@SuppressWarnings("unchecked")
ArrayAdapter<String> adapter = (ArrayAdapter<String>) spinner.getAdapter();
for (int i = adapter.getCount() - 1; i >= 0; --i) {
if (value.equals(adapter.getItem(i))) {
spinner.setSelection(i);
break;
}
}
}
}
public boolean isEdit() {
return mEdit;
}
@Override
public void afterTextChanged(Editable s) {
mTextViewChangedHandler.post(new Runnable() {
public void run() {
enableSubmitIfAppropriate();
}
});
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// work done in afterTextChanged
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// work done in afterTextChanged
}
@Override
public void onCheckedChanged(CompoundButton view, boolean isChecked) {
if (view.getId() == R.id.show_password) {
int pos = mPasswordView.getSelectionEnd();
mPasswordView.setInputType(
InputType.TYPE_CLASS_TEXT | (isChecked ?
InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD :
InputType.TYPE_TEXT_VARIATION_PASSWORD));
if (pos >= 0) {
((EditText)mPasswordView).setSelection(pos);
}
} else if (view.getId() == R.id.wifi_advanced_togglebox) {
if (isChecked) {
mView.findViewById(R.id.wifi_advanced_fields).setVisibility(View.VISIBLE);
} else {
mView.findViewById(R.id.wifi_advanced_fields).setVisibility(View.GONE);
}
}
}
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
if (parent == mSecuritySpinner) {
mAccessPointSecurity = position;
showSecurityFields();
} else if (parent == mEapMethodSpinner) {
showSecurityFields();
} else if (parent == mProxySettingsSpinner) {
showProxyFields();
} else {
showIpConfigFields();
}
enableSubmitIfAppropriate();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
//
}
/**
* Make the characters of the password visible if show_password is checked.
*/
private void updatePasswordVisibility(boolean checked) {
int pos = mPasswordView.getSelectionEnd();
mPasswordView.setInputType(
InputType.TYPE_CLASS_TEXT | (checked ?
InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD :
InputType.TYPE_TEXT_VARIATION_PASSWORD));
if (pos >= 0) {
((EditText)mPasswordView).setSelection(pos);
}
}
}
3. 小结:
- 如上, 贴上了原生 Android 5.5 Settings 关于 WIFI 部分源代码的核心部分, 供日后查询方便!
- 文章仅供记录, 学习, 以及查询.
