我被困在通知的创建中。只想在状态栏中显示电池电量(通知栏)通知已永久存在。这是代码的一部分:
private BroadcastReceiver batteryInfoReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
            int  level= intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
              String[] status = {
                "Level: "+level
                 . . .
               };
             NotificationManager notifi = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
             Notification notification = new Notification(R.drawable.ic_launcher,"Level",System.currentTimeMillis());
             notification.flags = Notification.FLAG_ONGOING_EVENT;
             Intent i = new Intent(context, MainActivity.class); 
             PendingIntent penInt = PendingIntent.getActivity(getApplicationContext(), 0 , i , 0);
             notification.setLatestEventInfo(getApplicationContext(), +level+"%", penInt);
             notifi.notify(215,notification);
            }
};
这是对的吗?例如在清单中还有其他要添加的内容吗?我没有指定的通知类,所以我以这种方式写了这一行:Intent i = new Intent(context, MainActivity.class);但我不知道它是否正确。