数据未被发送到broadcastReceiver

Question

我想在特定时间发出警报以显示我制作的Parcelable Java Object的字段。我知道以前有关于这个问题，但是，我还没有找到解决这个问题的方法。如果没有数据传递给Receiver，则会成功发出警报，但是，我通过创建Receiver的Fragment中的Intent发送给它的任何数据都不会保留。

我为Receiver代码如下：

public class NotificationReceiver extends BroadcastReceiver { 

@Override 
public void onReceive(Context context, Intent intent) { 
    IUser eu = intent.getExtras().getParcelable("USER"); 
    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); 
    Intent repeating_intent = new Intent(new Intent(context, MainActivity.class)); 
    repeating_intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 

    PendingIntent pendingIntent = PendingIntent.getActivity(context, 100, repeating_intent, PendingIntent.FLAG_UPDATE_CURRENT); 
    NotificationCompat.Builder builder = new NotificationCompat.Builder(context) 
      .setContentIntent(pendingIntent) 
      .setSmallIcon(android.R.drawable.arrow_up_float) 
      .setContentTitle("Warning: Approaching Threshold") 
      .setContentText(eu.get_forecast_info().get_estimate_cur_cycle_total_cost()+" is the price") 
      .setAutoCancel(true); 

    notificationManager.notify(100, builder.build()); 
    } 
} 

供应Intent为Receiver的代码如下：

trigger_b = (Button) view.findViewById(R.id.trigger_button); 
    trigger_b.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 

      Calendar calendar = Calendar.getInstance(); 
      calendar.set(Calendar.HOUR_OF_DAY, 10); 
      calendar.set(Calendar.MINUTE, 14); 
      calendar.set(Calendar.SECOND, 0); 
      Intent intent = new Intent(getActivity().getApplicationContext(), NotificationReceiver.class); 
      Bundle c = new Bundle(); 
      c.putParcelable("USER", eu); 
      intent.putExtras(c); 
      PendingIntent pendingIntent = PendingIntent.getBroadcast(getActivity().getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); 
      AlarmManager alarmManager = (AlarmManager) getActivity().getSystemService(Context.ALARM_SERVICE); 
      alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent); 
     } 
    }); 

Answer 1

随着Android的最新版本中，你不能可靠地把自定义Parcelable或Serializable中的对象Intent传递给AlarmManager。您需要将自定义对象序列化为byte[]，并将byte[]放入Intent。在onReceive()中，您将需要再次从byte[]构造对象。

查看How to marshall and unmarshall a Parcelable to a byte array with help of Parcel?或https://gist.github.com/jacklt/6711967代码示例。