Android自定义软键盘样式：字母、数字、标点三种切换

先看效果图：

20180110144638500.png

20180110144711177.png

20180110154007315.png

1.在需要的调用软键盘的activity_mian.xml中加入键盘控件

<android.inputmethodservice.KeyboardView
    android:id="@+id/keyboard_view"
    android:shadowRadius="0.0"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:keyPreviewLayout="@layout/key_preview_layout"
    android:background="#D6D9DE"
    android:keyBackground="@drawable/btn_keyboard_key"
    android:keyTextColor="#747474"
    android:keyTextSize="36dp"
    android:paddingTop="10dp"
    android:paddingBottom="10dp"
    android:paddingLeft="95dp"
    android:paddingRight="95dp"
    android:visibility="gone"
    />

</RelativeLayout>
1.1

android:keyPreviewLayout="@layout/key_preview_layout"这个是长按键盘时弹出框的样式，如果不写，系统默认，默认的有时会会看不清
key_preview_layout.xml：

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="40sp"
android:textColor="@android:color/white"
android:gravity="center"
android:background="#80929299"/>
1.2
android:keyBackground="@drawable/btn_keyboard_key"按键的形状

btn_keyboard_key.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#FFFFFFFF"/>
<corners android:topLeftRadius="8dip"
android:topRightRadius="8dip"
android:bottomRightRadius="8dip"
android:bottomLeftRadius="8dip" />
</shape>

2.然后在res文件夹下新建文件夹，里面新建三个文件，即每种键盘样式的布局分别为qwerty.xml, symbols.xml, punctuate.xml

字母键盘-qwerty.xml：

<?xml version="1.0" encoding="UTF-8"?>
<Keyboard android:keyWidth="100dp" android:keyHeight="60dp"
android:horizontalGap="10dp" android:verticalGap="15dp"
xmlns:android="http://schemas.android.com/apk/res/android">
<Row>
<Key android:codes="113" android:keyEdgeFlags="left"
android:keyLabel="q" />
<Key android:codes="119" android:keyLabel="w" />
<Key android:codes="101" android:keyLabel="e" />
<Key android:codes="114" android:keyLabel="r" />
<Key android:codes="116" android:keyLabel="t" />
<Key android:codes="121" android:keyLabel="y" />
<Key android:codes="117" android:keyLabel="u" />
<Key android:codes="105" android:keyLabel="i" />
<Key android:codes="111" android:keyLabel="o" />
<Key android:codes="112" android:keyEdgeFlags="right"
android:keyLabel="p" />
</Row>
<Row>
<Key android:horizontalGap="4.999995%p" android:codes="97"
android:keyEdgeFlags="left" android:keyLabel="a" />
<Key android:codes="115" android:keyLabel="s" />
<Key android:codes="100" android:keyLabel="d" />
<Key android:codes="102" android:keyLabel="f" />
<Key android:codes="103" android:keyLabel="g" />
<Key android:codes="104" android:keyLabel="h" />
<Key android:codes="106" android:keyLabel="j" />
<Key android:codes="107" android:keyLabel="k" />
<Key android:codes="108" android:keyEdgeFlags="right"
android:keyLabel="l" />
</Row>
<Row>
<Key android:keyWidth="110dp" android:codes="-1"
android:keyEdgeFlags="left" android:isModifier="true"
android:horizontalGap="33dp"
android:isSticky="true" android:keyIcon="@drawable/shift" />
<Key android:codes="122" android:keyLabel="z" android:horizontalGap="30dp"/>
<Key android:codes="120" android:keyLabel="x" />
<Key android:codes="99" android:keyLabel="c" />
<Key android:codes="118" android:keyLabel="v" />
<Key android:codes="98" android:keyLabel="b" />
<Key android:codes="110" android:keyLabel="n" />
<Key android:codes="109" android:keyLabel="m" />
<Key android:keyWidth="110dp" android:codes="-5"
android:horizontalGap="30dp"
android:keyEdgeFlags="right" android:isRepeatable="true"
android:keyIcon="@drawable/delete" />
</Row>
<Row android:rowEdgeFlags="bottom">
<Key android:keyWidth="110dp" android:codes="-2" android:horizontalGap="43dp"
android:keyIcon="@drawable/number" />
<Key android:keyWidth="110dp" android:codes="46"
android:keyIcon="@drawable/point" />
<Key android:keyWidth="540dp" android:codes="32"
android:isRepeatable="true" android:keyIcon="@drawable/space" />
<Key android:keyWidth="110dp" android:codes="47"
android:keyIcon="@drawable/gang"/>
<Key android:keyWidth="110dp" android:codes="-3"
android:keyEdgeFlags="right" android:keyIcon="@drawable/complete" />
</Row>
</Keyboard>
数字键盘-symbols.xml：

<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="100dp" android:horizontalGap="10dp"
android:verticalGap="15dp" android:keyHeight="60dp">

</Keyboard>
标点键盘-punctuate.xml

<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
android:keyWidth="100dp" android:horizontalGap="17dp"
android:verticalGap="15dp" android:keyHeight="60dp">

<Row>
    <Key android:codes="12304" android:keyEdgeFlags="left"
         android:keyLabel="【"  android:horizontalGap="50dp"/>
    <Key android:codes="12305" android:keyLabel="】" />
    <Key android:codes="65371" android:keyLabel="｛" />
    <Key android:codes="65373" android:keyLabel="｝" />
    <Key android:codes="35" android:keyLabel="#" />
    <Key android:codes="94" android:keyLabel="^" />
    <Key android:codes="42" android:keyLabel="*" />
    <Key android:codes="43" android:keyLabel="+" />
    <Key android:codes="61" android:keyEdgeFlags="right"
        android:keyLabel="=" />
</Row>
<Row>
    <Key android:codes="45" android:keyEdgeFlags="left"
        android:keyLabel="-"  android:horizontalGap="50dp"/>
    <Key android:codes="8212" android:keyLabel="—" />
    <Key android:codes="92" android:keyLabel="&#92;&#92;" />
    <Key android:codes="124" android:keyLabel="|" />
    <Key android:codes="126" android:keyLabel="~" />
    <Key android:codes="12298" android:keyLabel="《" />
    <Key android:codes="12299" android:keyLabel="》" />
    <Key android:codes="38" android:keyLabel="&#038;"/>
    <Key android:codes="65509" android:keyEdgeFlags="right"
        android:keyLabel="￥" />
</Row>
<Row>
    <Key android:keyWidth="110dp" android:codes="-7"
        android:keyEdgeFlags="left" android:isModifier="true"
        android:horizontalGap="80dp"
        android:isSticky="true" android:keyIcon="@drawable/number" />
    <Key android:codes="8230" android:keyLabel="…" android:horizontalGap="30dp"/>
    <Key android:codes="65509" android:keyLabel="￥" />
    <Key android:codes="12289" android:keyLabel="、" />
    <Key android:codes="65311" android:keyLabel="？" />
    <Key android:codes="8216" android:keyLabel="‘" />
    <Key android:codes="8217" android:keyLabel="’" />
    <Key android:keyWidth="110dp" android:codes="-5"
        android:horizontalGap="30dp"
        android:keyEdgeFlags="right" android:isRepeatable="true"
        android:keyIcon="@drawable/delete" />
</Row>
<Row android:rowEdgeFlags="bottom">
    <Key android:keyWidth="110dp" android:codes="-2" android:horizontalGap="80dp"
        android:keyIcon="@drawable/pinyin" />
    <Key android:keyWidth="685dp" android:codes="32" android:horizontalGap="30dp"
        android:isRepeatable="true" android:keyIcon="@drawable/space" />
    <Key android:keyWidth="110dp" android:codes="-3" android:horizontalGap="30dp"
        android:keyEdgeFlags="right" android:keyIcon="@drawable/complete" />
</Row>

</Keyboard>
android:keyIcon="@drawable/space" 的部分没有图片的话可以换成 android:keyLabel=" "括号里用相应字母或符号代替

3.然后就是KeyBoardUtil工具类，网上有很多内容大同小异，我为了实现三种键盘的切换进行了一些改动

KeyBoardUtil.java

package com.dcdz.app.base;

import android.app.Activity;
import android.content.Context;
import android.inputmethodservice.Keyboard;
import android.inputmethodservice.Keyboard.Key;
import android.inputmethodservice.KeyboardView;
import android.inputmethodservice.KeyboardView.OnKeyboardActionListener;
import android.text.Editable;
import android.view.View;
import android.widget.EditText;

import com.dcdz.app.R;

import java.util.List;

public class KeyboardUtil {
private Context ctx;
private Activity act;
private KeyboardView keyboardView;
private Keyboard k1;// 字母键盘
private Keyboard k2;// 数字键盘
private Keyboard k3;//标点符号键盘
public boolean isnun = false;// 是否数据键盘
public boolean ispun = false;//是否标点键盘
public boolean isupper = false;// 是否大写

public static final int KEYCODE_PUN = -7;

private EditText ed;

public KeyboardUtil(Activity act, Context ctx, EditText edit) {
    this.act = act;
    this.ctx = ctx;
    this.ed = edit;
    k1 = new Keyboard(ctx, R.xml.qwerty);
    k2 = new Keyboard(ctx, R.xml.symbols);
    k3 = new Keyboard(ctx,R.xml.punctuate);
    keyboardView = (KeyboardView) act.findViewById(R.id.keyboard_view);
    keyboardView.setKeyboard(k1);
    keyboardView.setEnabled(true);
    keyboardView.setPreviewEnabled(true);
    keyboardView.setOnKeyboardActionListener(listener);

}

private OnKeyboardActionListener listener = new OnKeyboardActionListener() {
    @Override
    public void swipeUp() {
    }

    @Override
    public void swipeRight() {
    }

    @Override
    public void swipeLeft() {
    }

    @Override
    public void swipeDown() {
    }

    @Override
    public void onText(CharSequence text) {
    }

    @Override
    public void onRelease(int primaryCode) {
    }

    @Override
    public void onPress(int primaryCode) {
    }

    @Override
    public void onKey(int primaryCode, int[] keyCodes) {
        Editable editable = ed.getText();
        int start = ed.getSelectionStart();
        if (primaryCode == Keyboard.KEYCODE_CANCEL) {// 完成
            hideKeyboard();
        } else if (primaryCode == Keyboard.KEYCODE_DELETE) {// 回退
            if (editable != null && editable.length() > 0) {
                if (start > 0) {
                    editable.delete(start - 1, start);
                }
            }
        } else if (primaryCode == Keyboard.KEYCODE_SHIFT) {// 大小写切换
            changeKey();
            keyboardView.setKeyboard(k1);


        } else if (primaryCode == Keyboard.KEYCODE_MODE_CHANGE) {// 数字键盘切换
            if (isnun) {
                isnun = false;
                keyboardView.setKeyboard(k1);
            } else {
                isnun = true;
                keyboardView.setKeyboard(k2);
            }
        }else if(primaryCode == KEYCODE_PUN){
            if(ispun){
                ispun = false;
                keyboardView.setKeyboard(k2);
            }else {
                ispun = true;
                keyboardView.setKeyboard(k3);
            }
        }
        else if (primaryCode == 57419) { // go left
            if (start > 0) {
                ed.setSelection(start - 1);
            }
        } else if (primaryCode == 57421) { // go right
            if (start < ed.length()) {
                ed.setSelection(start + 1);
            }
        } else {
            editable.insert(start, Character.toString((char) primaryCode));
        }
    }
};
/**
 * 键盘大小写切换
 */
private void changeKey() {
    List<Key> keylist = k1.getKeys();
    if (isupper) {//大写切换小写
        isupper = false;
        for(Key key:keylist){
            if (key.label!=null && isword(key.label.toString())) {
                key.label = key.label.toString().toLowerCase();
                key.codes[0] = key.codes[0]+32;
            }
        }
    } else {//小写切换大写
        isupper = true;
        for(Key key:keylist){
            if (key.label!=null && isword(key.label.toString())) {
                key.label = key.label.toString().toUpperCase();
                key.codes[0] = key.codes[0]-32;
            }
        }
    }
}

public void showKeyboard() {
    int visibility = keyboardView.getVisibility();
    if (visibility == View.GONE || visibility == View.INVISIBLE) {
        keyboardView.setVisibility(View.VISIBLE);
    }
}

public void hideKeyboard() {
    int visibility = keyboardView.getVisibility();
    if (visibility == View.VISIBLE) {
        keyboardView.setVisibility(View.INVISIBLE);
    }
}

private boolean isword(String str){
    String wordstr = "abcdefghijklmnopqrstuvwxyz";
    if (wordstr.indexOf(str.toLowerCase())>-1) {
        return true;
    }
    return false;
}

}

4.最后是调用

4.1在Fragment里调

一般的项目都是在Fragment里调的，这个根据你的文本框的位置具体来定吧

我这边内容较多，只写关键代码

public class UserLoginFragment extends SupportFragment {
FragmentFingerUserloginBinding binding;
private EditText etUserName;
private EditText etPassword;

private Context ctx;
private Activity act;
private KeyboardView keyboardView;


public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    binding = DataBindingUtil.inflate(inflater, R.layout.fragment_finger_userlogin, container, false);

    act = getActivity();
    ctx = getActivity().getBaseContext();
    keyboardView = (KeyboardView) getActivity().findViewById(R.id.keyboard_view);
   
    etUserName = binding.etUsername;
    etPassword = binding.etPassword;

    initView();
    return binding.getRoot();
}

private void initView() {
    if (binding != null) {
        etUserName.requestFocus();

// etUserName.setFocusableInTouchMode(true);
etUserName.addTextChangedListener(watcher);
etPassword.addTextChangedListener(watcher);

        etUserName.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI);
        etPassword.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI);

        //调用自定义键盘
        etUserName.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                keyboardView.setKeyboard(k1);

// int inputback = etUserName.getInputType();
// etUserName.setInputType(InputType.TYPE_NULL);
new KeyboardUtil(act,act.getBaseContext(), etUserName).showKeyboard();
// etUserName.setInputType(inputback);
return false;
}
});
etPassword.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
keyboardView.setKeyboard(k2);
new KeyboardUtil(act, act.getBaseContext(), etPassword).showKeyboard();
return false;
}
});
}

}

4.2在Activity里调，在Activity里调我是为了在这里实现触摸屏幕其他位置隐藏软键盘

关键代码

public class FingerActivity extends SupportActivity {
private KeyboardView keyboardView;

@SuppressLint("ResourceType")
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    binding = DataBindingUtil.setContentView(this, R.layout.activity_finger);

    keyboardView = (KeyboardView) findViewById(R.id.keyboard_view);

    initView();
    loadRootFragment(new UserLoginFragment());
}

public boolean onTouchEvent(MotionEvent event) {
if(null != this.getCurrentFocus()){
/**
* 点击空白位置隐藏软键盘
*/
keyboardView.setVisibility(View.INVISIBLE);
}
return super .onTouchEvent(event);
}
5到这里即基本可以实现了，在使用的时候肯定还会遇到很多小问题，这里也不一一列举了。