1. 监听短信发送：
    2. @Override
    3.  protected void onCreate(Bundle savedInstanceState) {
    4.   super.onCreate(savedInstanceState);
    5.   setContentView(R.layout.activity_main);
    7.   // 监听系统短信
    8.   ContentResolver resolver = getContentResolver();
    10.   // 注册一个内容观察者观察短信数据库
    11.   resolver.registerContentObserver(Uri.parse("content://sms/"), true, new MyContentObserver(new Handler()));
    12.  }
    14.  /**
    15.   * @author andong
    16.   * 内容观察者
    17.   */
    18.  class MyContentObserver extends ContentObserver {
    21.   private static final String TAG = "MyContentObserver";
    23.   public MyContentObserver(Handler handler) {
    24.    super(handler);
    25.   }
    27.   /**
    28.    * 当被监听的内容发生改变时回调
    29.    */
    30.   @Override
    31.   public void onChange(boolean selfChange) {
    32.    Log.i(TAG, "短信改变了");
    33.    Uri uri = Uri.parse("content://sms/outbox"); // 发件箱的uri
    35.    // 查询发件箱的内容
    36.    Cursor cursor = getContentResolver().query(uri, new String[]{"address", "date", "body"}, null, null, null);
    37.    if(cursor != null && cursor.getCount() > 0) {
    39.     String address;
    40.     long date;
    41.     String body;
    42.     while(cursor.moveToNext()) {
    43.      address = cursor.getString(0);
    44.      date = cursor.getLong(1);
    45.      body = cursor.getString(2);
    47.      Log.i(TAG, "号码: " + address + ", 日期: " + date + ", 内容: " + body);
    48.     }
    49.     cursor.close();
    50.    }
    51.   }
    52.  }
    53. 需要权限：
    54.  <uses-permission android:name="android.permission.READ_SMS"/>