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我正在编写一个应用程序，每当我靠近特定的兴趣点时，我都会在其中启动接近警报（我从 mysql db 读取 poi）。当 BroadcastReceiver 获得意图时，它会创建一个通知并且一切正常。当我单击通知时，我希望启动一个活动，因此我需要向广播接收器发送一些参数（基本上是字符串），以便它可以将此参数传递给我要启动的活动。问题是，当我尝试通过意图将这些参数传递给广播接收器时，我收到此错误：错误接收广播意图 flg=0x10 有额外内容。

我以这种方式发送参数：

 private void addProximityAlert(Annuncio a){
   double latitudine = a.lat; 
   double longitudine = a.lon; 
   Intent intent = new Intent(PROX_ALERT_INTENT);
   intent.putExtra("nome", nome); 
   PendingIntent pi = PendingIntent.getBroadcast(this, 0, intent,0);
   locationManager.addProximityAlert(latitudine, longitudine, RAGGIO, ALERT_EXPIRATION, pi); 
   IntentFilter filter = new IntentFilter(PROX_ALERT_INTENT); 
   registerReceiver(new ProximityIntentReceiver(),filter);
}

这是接收器：

public class ProximityIntentReceiver extends BroadcastReceiver{  
   public void onReceive(Context context, Intent intent){
       String nome = intent.getExtras().getString("nome");
       Log.v("nome", nome);


   } 
}

我错过了什么？

06-29 22:42:46.103: E/AndroidRuntime(3723): FATAL EXCEPTION: main
06-29 22:42:46.103: E/AndroidRuntime(3723): java.lang.RuntimeException: Error receiving broadcast Intent { act=com.carmen.progettosmp.PROXIMITY_ALERT flg=0x10 (has extras) } in com.carmen.progettosmp.ProximityIntentReceiver@427a2f58
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:795)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.os.Handler.handleCallback(Handler.java:615)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.os.Handler.dispatchMessage(Handler.java:92)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.os.Looper.loop(Looper.java:153)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.app.ActivityThread.main(ActivityThread.java:4987)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at java.lang.reflect.Method.invokeNative(Native Method)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at java.lang.reflect.Method.invoke(Method.java:511)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at dalvik.system.NativeStart.main(Native Method)
06-29 22:42:46.103: E/AndroidRuntime(3723): Caused by: java.lang.NullPointerException: println needs a message
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.util.Log.println_native(Native Method)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.util.Log.v(Log.java:117)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at com.carmen.progettosmp.ProximityIntentReceiver.onReceive(ProximityIntentReceiver.java:29)
06-29 22:42:46.103: E/AndroidRuntime(3723):     at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:785)
06-29 22:42:46.103: E/AndroidRuntime(3723):     ... 9 more
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1 回答 1

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如果你正在创建一个通知，你必须创建一个 PendingIntent，它又持有一个 Intent。你不能在那个意图中设置那些额外的东西吗？此外，听起来您可能会从地理围栏 API 中受益。还有一件事，您正在寻找字符串“ciao”作为键，您不应该寻找键名吗？

于 2013-06-29T19:04:17.730 回答