<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent">  <TextView    android:id="@+id/sms_from"    android:layout_width="wrap_content"    android:layout_height="20dp"    android:text="From" />  <TextView    android:id="@+id/sms_from_txt"    android:layout_width="wrap_content"    android:layout_height="20dp"    android:layout_marginLeft="15dp"    android:layout_toRightOf="@id/sms_from"/>  <TextView    android:id="@+id/sms_content"    android:layout_width="wrap_content"    android:layout_height="20dp"    android:layout_below="@id/sms_from"    android:layout_marginTop="20dp"    android:text="Content" />  <TextView    android:id="@+id/sms_content_txt"    android:layout_width="wrap_content"    android:layout_height="20dp"    android:layout_marginLeft="15dp"    android:layout_marginTop="20dp"    android:layout_below="@id/sms_from_txt"    android:layout_toRightOf="@id/sms_content"/></RelativeLayout>

public class MainActivity extends AppCompatActivity {  private TextView fromTv;  private TextView contentTv;  private IntentFilter intentFilter;  private MessageReceiver messageReceiver;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    initView();    getSms();  }  private void getSms() {    intentFilter = new IntentFilter();                 intentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");    messageReceiver = new MessageReceiver();    //設置較高的優先級    intentFilter.setPriority(100);    registerReceiver(messageReceiver, intentFilter);  }  private void initView() {    fromTv = (TextView) findViewById(R.id.sms_from_txt);    contentTv = (TextView) findViewById(R.id.sms_content_txt);  }  @Override  protected void onDestroy() {    super.onDestroy();    unregisterReceiver(messageReceiver);  }  class MessageReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {      Bundle bundle = intent.getExtras();      //提取短信消息      Object[] pdus = (Object[]) bundle.get("pdus");      SmsMessage[] messages = new SmsMessage[pdus.length];      for (int i = 0; i < messages.length; i++) {        messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);      }      //獲取發送方號碼      String address = messages[0].getOriginatingAddress();      String fullMessage = "";      for (SmsMessage message : messages) {        //獲取短信內容        fullMessage += message.getMessageBody();      }      //截斷廣播,阻止其繼續被Android自帶的短信程序接收到      abortBroadcast();      fromTv.setText(address);      contentTv.setText(fullMessage);    }  }}

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent">  <EditText    android:id="@+id/to_ed"    android:layout_width="match_parent"    android:layout_height="50dp"    android:hint="to"/>  <EditText    android:id="@+id/to_content"    android:layout_width="match_parent"    android:layout_height="50dp"    android:layout_below="@id/to_ed"    android:hint="content"/>  <Button    android:id="@+id/send_msg"    android:layout_width="match_parent"    android:layout_height="50dp"    android:layout_below="@id/to_content"    android:text="@string/send_message"/></RelativeLayout>

public class SendMsgActivity extends AppCompatActivity implements View.OnClickListener {  private Context context;  private EditText toEdit;  private EditText toContent;  private IntentFilter sendFilter;  private SendStatusReceiver sendStatusReceiver;  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_send_msg);    context = this;    initView();  }  private void initView() {    toEdit = (EditText) findViewById(R.id.to_ed);    toContent = (EditText) findViewById(R.id.to_content);    //添加發送按鈕的點擊監聽事件    Button sendMsg = (Button) findViewById(R.id.send_msg);    sendMsg.setOnClickListener(this);  }  @Override  public void onClick(View view) {    switch (view.getId()){      case R.id.send_msg:        sendMessage();       break;      default:        break;    }  }  private void sendMessage() {    //獲取短信接收者號碼    String to = toEdit.getText().toString();    //獲取發送短信內容    String content = toContent.getText().toString();    //獲得廣播接收器實例和IntentFilter實例    sendStatusReceiver = new SendStatusReceiver();    sendFilter = new IntentFilter();    sendFilter.addAction("SENT_SMS_ACTION");    //注冊廣播監聽    registerReceiver(sendStatusReceiver, sendFilter);    //構造PendingIntent啟動短信發送狀態監控廣播    Intent sendIntent = new Intent("SENT_SMS_ACTION");    PendingIntent pi = PendingIntent.getBroadcast(context, 0, sendIntent, 0);    //獲得短信管理實例    SmsManager smsManager = SmsManager.getDefault();    //調用發送短信函數，傳入參數發送短信(第一、三、四參數依次為接收者號碼,短信內容,短信發送狀態監控的PendingIntent)    smsManager.sendTextMessage(to, null, content, pi, null);  }  /**   * 構造廣播接收器內部類監控短信是否發送成功   */  class SendStatusReceiver extends BroadcastReceiver{    @Override    public void onReceive(Context context, Intent intent) {      if (getResultCode() == RESULT_OK){        Toast.makeText(context, "successful", Toast.LENGTH_SHORT).show();      }else{        Toast.makeText(context, "failed", Toast.LENGTH_SHORT).show();      }    }  }  @Override  protected void onDestroy() {    super.onDestroy();    //取消注冊的廣播    unregisterReceiver(sendStatusReceiver);  }}