//MainActivity
package com.example.contactstest_3;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.provider.ContactsContract;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MainActivityextends AppCompatActivity {
ArrayAdapteradapter;
ListcontactList =new ArrayList<>();
Stringnumber;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ListView listView = (ListView) findViewById(R.id.contact_list);
adapter =new ArrayAdapter(this,android.R.layout.simple_list_item_1,contactList);
listView.setAdapter(adapter);
//点击事件
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.CALL_PHONE)!=PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.CALL_PHONE},2);
}else {
call();
}
}
});
if(ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)!= PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_CONTACTS},1);
}else {
readnew();
}
}
//打电话
private void call(){
Intent intent =new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:"+number));
startActivity(intent);
}
private void readnew() {
Cursor cursor =null;
cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,null,null,null);
if(cursor!=null){
while (cursor.moveToNext()){
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Log.d("MainActivity.this",number);
contactList.add(name+"\n"+number);
}
adapter.notifyDataSetChanged();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case 1:
if(grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){
readnew();
}else {
Toast.makeText(this,"授权失败",Toast.LENGTH_LONG).show();
}
break;
case 2:
if(grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){
call();
}else {
Toast.makeText(this,"不能拨通",Toast.LENGTH_LONG).show();
}
break;
default:
}
}
}
//Activity.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
android:id="@+id/contact_list"
android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
