android BroadCastReceiver不在一個活動內工作

我想開發一個短信通知器。事情是，當短信接受一個文本框中的活動只是改變爲「短信接收」文本。短信發送成功，但BroadCastReceiver無法正常工作，請幫忙。android BroadCastReceiver不在一個活動內工作

我的代碼：

package com.shahid.todolist; 

import android.os.Bundle; 
import android.app.Activity; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.telephony.SmsManager; 
import android.telephony.SmsMessage; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 

public class MainActivity extends Activity { 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     /* 
     * SmsManager smsManager = SmsManager.getDefault(); 
     * 
     * String sendTo = "03129912287"; String myMessage = 
     * "Android supports programmatic SMS messaging!"; 
     * smsManager.sendTextMessage(sendTo, null, myMessage, null, null); 
     */ 

     final EditText phoneNo = (EditText) findViewById(R.id.phoneNo); 
     final TextView display = (TextView) findViewById(R.id.txtDisplay); 
     Button buttonOne = (Button) findViewById(R.id.button1); 
     buttonOne.setOnClickListener(new Button.OnClickListener() { 
      public void onClick(View v) { 
       SmsManager smsManager = SmsManager.getDefault(); 
       display.setText("Sending SMS..."); 
       String sendTo = phoneNo.getText().toString(); 
       String myMessage = "This is Shahid from Android"; 
       smsManager.sendTextMessage(sendTo, null, myMessage, null, null); 
      } 
     }); 

     // --- 
     final BroadcastReceiver receiver = new BroadcastReceiver() { 

      private static final String queryString = "@echo "; 
      private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED"; 

      @Override 
      public void onReceive(Context context, Intent _intent) { 
       if (_intent.getAction().equals(SMS_RECEIVED)) { 
        display.setText("SMS Received"); 
       } 
      } 
     }; 
    } 

    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     getMenuInflater().inflate(R.menu.activity_main, menu); 
     return true; 
    } 
}

來源

2012-08-09 Gunah Gaar

你必須註冊你接收到清單 – Akram 2012-08-09 08:59:42

你應該註冊您的廣播接收器動態或靜態（在androidmanifest.xml中）並設置意向過濾器爲您的短信廣播意圖 – Yahor10 2012-08-09 09:01:37

如何註冊menifest？ – 2012-08-09 09:05:17

您必須先註冊你的廣播時，它就是你的活動範圍內。

@Override 
    protected void onResume() { 
     IntentFilter filter = new IntentFilter(); 
     filter.addAction(BroadcastReceiver.SMS_RECEIVED); // Provide you intent filter for message received. 
     registerReceiver(receiver, filter); 

     super.onResume(); 
    } 

    @Override 
    protected void onPause() { 
     unregisterReceiver(receiver); 
     super.onPause(); 
    }

來源

2012-08-09 09:02:38

什麼是SendBroadcast ??? – 2012-08-09 09:09:17

@GunahGaar：檢查我的更新答案。 SendBroadcast是我的類，我宣佈我的意圖過濾器 – 2012-08-09 09:10:22

對不起，這裏的接收器是什麼？ – 2012-08-09 09:12:50

使用此代碼：

buttonOne.setOnClickListener(new Button.OnClickListener() { 
      public void onClick(View v) { 

       display.setText("Sending SMS..."); 
       String sendTo = phoneNo.getText().toString(); 
       String myMessage = "This is Shahid from Android"; 
       sendSMS(sendTo , myMessage); 
      } 
     }); 



private void sendSMS(String phoneNumber, String message) 
    {   
     String SENT = "SMS_SENT"; 
     String DELIVERED = "SMS_DELIVERED"; 

     PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, 
      new Intent(SENT), 0); 

     PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0, 
      new Intent(DELIVERED), 0); 

     //---when the SMS has been sent--- 
     registerReceiver(new BroadcastReceiver(){ 
      public void onReceive(Context arg0, Intent arg1) { 
       switch (getResultCode()) 
       { 
        case Activity.RESULT_OK: 
         Toast.makeText(getBaseContext(), "SMS sent", 
           Toast.LENGTH_SHORT).show(); 
         break; 
        case SmsManager.RESULT_ERROR_GENERIC_FAILURE: 
         Toast.makeText(getBaseContext(), "Generic failure", 
           Toast.LENGTH_SHORT).show(); 
         break; 
        case SmsManager.RESULT_ERROR_NO_SERVICE: 
         Toast.makeText(getBaseContext(), "No service", 
           Toast.LENGTH_SHORT).show(); 
         break; 
        case SmsManager.RESULT_ERROR_NULL_PDU: 
         Toast.makeText(getBaseContext(), "Null PDU", 
           Toast.LENGTH_SHORT).show(); 
         break; 
        case SmsManager.RESULT_ERROR_RADIO_OFF: 
         Toast.makeText(getBaseContext(), "Radio off", 
           Toast.LENGTH_SHORT).show(); 
         break; 
       } 
      } 
     }, new IntentFilter(SENT)); 

     //---when the SMS has been delivered--- 
     registerReceiver(new BroadcastReceiver(){ 
      @Override 
      public void onReceive(Context arg0, Intent arg1) { 
       switch (getResultCode()) 
       { 
        case Activity.RESULT_OK: 
         Toast.makeText(getBaseContext(), "SMS delivered", 
           Toast.LENGTH_SHORT).show(); 
         display.setText("SMS Received"); 

         break; 
        case Activity.RESULT_CANCELED: 
         Toast.makeText(getBaseContext(), "SMS not delivered", 
           Toast.LENGTH_SHORT).show(); 


         break;       
       } 
      } 
     }, new IntentFilter(DELIVERED));   

     SmsManager sms = SmsManager.getDefault(); 
     sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);   
    }

來源

2012-08-09 09:23:26 Manikandan

我在PendingIntent.getBroadcast上設計了時間錯誤（this，0， new Intent（DELIVERED），0）;你使用這個代碼的 – 2012-08-09 12:29:28

？對我來說，它工作正常。試試yourclass.this而不是這個。 – Manikandan 2012-08-09 16:01:32

如果這可以幫助別人，在我的情況下，問題是，我是使用特殊字符，如在我的文字括號內。一旦我刪除了這些字符，它開始工作

來源

2015-11-27 04:07:54 Felipe

android BroadCastReceiver不在一個活動內工作

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