通过onActivityResult（）先跳转到联系人界面，然后把传回来的手机号显示到应用的EditText上

<pre name="code" class="plain"><pre name="code" class="plain">public class MainActivity extends Activity {
/**输入框*/
private EditText et;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et = (EditText) findViewById(R.id.et);
}
//点击跳转到联系人界面
public void click(View v){
Intent intent = new Intent();
intent.setAction("android.intent.action.PICK");
intent.setData(Uri.parse("content://com.android.contacts/contacts"));
startActivityForResult(intent, 5);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==5){
Uri uri = data.getData();
Cursor cursor = getContentResolver().query(uri, new String[]{"_id"}, null, null, null);
cursor.moveToNext();
int id = cursor.getInt(0);//联系人的Id

//再通过ID查号码
Cursor cursor2 = getContentResolver().query(Phone.CONTENT_URI,  //获取所有联系人的URL
new String[]{"data1"}, 	//表示要查号码
"contact_id=?", 	//通过联系人的ID查
new String[]{id+""}, null);
cursor2.moveToNext();
String number = cursor2.getString(0);//获取联系人号码
et.setText(number);
}
}
}