Android:来自BroadcastReceiver的通知 [英] Android: notification from BroadcastReceiver

问题描述

我有一个警报管理器，可以启动广播接收器. 这是我的广播接收器:

I have an alarm manager that starts a broadcast receiver. Here is my broadcast receiver:

public class AlarmBrodcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent arg1) {
        showNotification(context);
    }

    private void showNotification(Context context) {
        PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
                new Intent(context, MyActivity.class), 0);

        NotificationCompat.Builder mBuilder =
                new NotificationCompat.Builder(context)
                .setSmallIcon(0)
                .setContentTitle("My notification")
                .setContentText("Hello World!");
        mBuilder.setContentIntent(contentIntent);
        mBuilder.setDefaults(Notification.DEFAULT_SOUND);
        mBuilder.setAutoCancel(true);
        NotificationManager mNotificationManager =
            (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(1, mBuilder.build());

    }  
}

广播会按时开始，但没有通知，只有声音.文字在哪里?怎么了?是因为我正在使用API​​ 10和支持库吗?

The broadcast starts in time, but there is no notification, only sound. Where is the text? What's wrong? Is it because I'm using API 10 and the support library?

推荐答案

哦，我发现了问题.问题出在.setSmallIcon(0)...当我设置一些实际资源时，它没问题，出现通知...

Oh, I found the problem. The problem is in .setSmallIcon(0)...When I set some real resource, its ok, notification appear...

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