如何通過意圖將數據從服務傳遞到Android中的BroadcastReceiver

Question

我試圖通過意圖從服務調用BroadcastReceiver。

我打電話廣播接收器在我的服務文件如下：

final Handler handler = new Handler(); 
    final Runnable r = new Runnable()  {  
    public void run()     {  

       // code here what ever is required 
       System.out.println("Runnnn"); 
       counter++; 

       Intent i = new Intent(); 
       i.setAction("Refresh"); 
       Bundle b = new Bundle(); 
       b.putInt("Counter", counter); 
       i.putExtra("Bundle", b); 
       ctx.sendBroadcast(i); 

       handler.postDelayed(this, 1000);  


       Toast.makeText(getApplicationContext(), "counter"+counter, Toast.LENGTH_LONG).show(); 



       }  

      };  
      handler.postDelayed(r, 1000); 

在廣播接收器onReceive()如下：

public void onReceive(Context context, Intent arg1) { 
    System.out.println("OnReceiveeeeee"); 

    if(arg1.getAction().equalsIgnoreCase("Refresh")) 
    { 
     System.out.println("Received Intent"); 
     Bundle b = arg1.getExtras(); 
     c=b.getInt("Counter"); 
     System.out.println("Counter in Receiver:::"+c); 
    } 
} 

但我在的onReceive獲得價值爲零。
任何幫助表示讚賞在onReceive（）方法中獲得正確的值。
將等待回覆。

Answer 1

你在錯誤的方式訪問。

Bundle b = arg1.getExtras(); 

您需要訪問如下。

Bundle b = intent.getBundleExtra("Bundle"); 

=========================================== =====

您也可以編寫代碼，而無需使用束也：

在服務

i.putExtra("Counter", counter); 

在廣播接收器

intent.getIntExtra("Counter", -1); // -1 is defalut value 

Answer 2

這裏是我用來播放註銷提示我所有的應用程序活動，關閉代碼片段回到登錄屏幕

logoutBroadcastReceiver lbr; 

@Override 
public void onResume(){ 
... 
// register the broadcast receiver 
IntentFilter intentfilter = new IntentFilter("com.on3x.action.DO_LOGOUT"); 
lbr = new logoutBroadcastReceiver(); 
registerReceiver(lbr,intentfilter); 
super.onResume(); 
... 
} 

// broadcast receiver grabbing the "test" bundled extra 
    public class logoutBroadcastReceiver extends BroadcastReceiver { 

     @Override 
     public void onReceive(Context context, Intent intent) { 
      Log.d(getString(R.string.app_name), "broadcast string: " + intent.getStringExtra("string_example")); 
      Log.d(getString(R.string.app_name), "extra!: " + intent.getIntExtra("int_example",0)); 

      finish(); 
     } 
    } 


// broadcast the intent to logout when logout button clicked 
// put the extra "test" in the bundle 
    public void onClickLogout(View _view) { 
     Intent i = new Intent("com.on3x.action.DO_LOGOUT"); 
     i.putExtra("string_example", "here is a broadcasted string"); 
     i.putExtra("int_example", 100); 
     sendBroadcast(i); 
    } 

時，我希望這些代碼可以幫助你得到你的工作？

編輯：更新爲使用putExtra()和getStringExtra()/getIntExtra()