使用意向

Question

1. SMSReceiver.java收到ListView項短信

   public class SMSReceiver extends BroadcastReceiver{ 
   public void onReceive(Context context, Intent intent) { 
   
   Bundle bundle = intent.getExtras(); 
   String str = ""; 
   if (bundle != null) { 
   
       Object [] pdus = (Object[])bundle.get("pdus"); 
   
       SmsMessage [] msgs = new SmsMessage[pdus.length]; 
       String [] lmsg = new String[2048]; 
       for (int i = 0; i < msgs.length; i++) { 
        msgs[i] = SmsMessage 
          .createFromPdu((byte[]) pdus[i]); 
        str += msgs[i].getOriginatingAddress() 
          + "\n " + 
          msgs[i].getMessageBody().toString() 
          +"\n"; 
       } 
       for (int j = 0; j < lmsg.length ; j++) { 
        lmsg[j] = str; 
       } Toast.makeText(context, str, Toast.LENGTH_LONG).show(); 
       } 
       } 
   } 
   

2.RedirectActivity

public class RedirectActivity extends AppCompatActivity { 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    Intent intent = getIntent(); 
    intent.setClass(RedirectActivity.this, ParentActivity.class); 

    intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP |Intent.FLAG_ACTIVITY_CLEAR_TOP); 
    startActivity(intent); 
    finish(); 
    } 
} 

我想從SMS資料ParentActivity。

1. SMSReceiver：接收短信
2. RedirectActivity：將消息傳遞給ParentActivity
3. ParentActivity：由意向

從redirectActivity獲取數據，我SMSReceiver和RedirectActivity之間有問題。它不起作用。

Answer 1

請嘗試這一個兄弟

public class IncomingSms extends BroadcastReceiver { 

    private static SmsListener mListener; 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     Bundle data = intent.getExtras(); 

     Object[] pdus = (Object[]) data.get("pdus"); 

     for(int i=0;i<pdus.length;i++){ 
      SmsMessage smsMessage = SmsMessage.createFromPdu((byte[]) pdus[i]); 

      String sender = smsMessage.getDisplayOriginatingAddress(); 
      //You must check here if the sender is your provider and not another one with same text. 

      String messageBody = smsMessage.getMessageBody(); 

      //Pass on the text to our listener. 
      mListener.messageReceived(messageBody); 
     } 
    } 

    public static void bindListener(SmsListener listener) { 
     mListener = listener; 
    } 
} 

接口監聽

public interface SmsListener { 
    public void messageReceived(String messageText); 
} 

活動得到Mesage

IncomingSms.bindListener(new SmsListener() { 
     @Override 
     public void messageReceived(String messageText) { 
      Log.d("Text", messageText); 
      Toast.makeText(VerifyOTPActivity.this, "Message: " + messageText, Toast.LENGTH_LONG).show(); 


     } 
    }); 

不要忘了這個清單文件

<uses-permission android:name="android.permission.RECEIVE_SMS" /> 
<uses-permission android:name="android.permission.READ_SMS" /> 
<uses-permission android:name="android.permission.SEND_SMS" /> 

<receiver android:name=".IncomingSms"> 
     <intent-filter> 
      <action android:name="android.provider.Telephony.SMS_RECEIVED"/> 
     </intent-filter> 
</receiver>