Question

我正在创建我的第一个android应用程序，这是一个词汇测验。我正在尝试每小时发送一次通知（使用PeriodicWorkRequest-WorkManager）。我注意到，当该应用被终止时，通知会不断触发，但是操作按钮不起作用。

这是我的Worker类中的发送通知方法：

public void sendNot(Word word, int wordNum) {
            Intent activityIntent = new Intent(getApplicationContext(), WordStatsActivity.class);
            activityIntent.putExtra("word_exists", word);
            PendingIntent contentIntent = PendingIntent.getActivity(getApplicationContext()
                    , 0, activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);

            Intent knewBroad = new Intent(getApplicationContext(), MainActivity.NotificationBroadcast.class);
            knewBroad.setAction(KNEW_WORD);
            knewBroad.putExtra("word", word);
            PendingIntent knewIntent = PendingIntent.getBroadcast(getApplicationContext(),
                    0, knewBroad, PendingIntent.FLAG_UPDATE_CURRENT);

            Intent didntKnowBroad = new Intent(getApplicationContext(), MainActivity.NotificationBroadcast.class);
            didntKnowBroad.setAction(DIDNT_KNOW_WORD);
            didntKnowBroad.putExtra("word", word);
            PendingIntent didntKnow = PendingIntent.getBroadcast(getApplicationContext(),
                    0, didntKnowBroad, PendingIntent.FLAG_UPDATE_CURRENT);

            Intent stopShowBroad = new Intent(getApplicationContext(), MainActivity.NotificationBroadcast.class);
            stopShowBroad.setAction(NOTIFCATION_OFF);
            stopShowBroad.putExtra("word", word);
            PendingIntent stopShowIntent = PendingIntent.getBroadcast(getApplicationContext(),
                    0, stopShowBroad, PendingIntent.FLAG_UPDATE_CURRENT);


            Notification notification = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_1_ID)
                    ...
                    .addAction(R.mipmap.ic_launcher, "know", knewIntent)
                    .addAction(R.mipmap.ic_launcher, "don't know", didntKnow)
                    .addAction(R.mipmap.ic_launcher, "don't show again", stopShowIntent)
                    ...
                    .build();
            notificationManager.notify(word.getId(), notification);
        }

如果您需要更多信息，请告诉我

Answer 1

确保在推送通知有效负载中，通知密钥一定不存在。有效负载正文中将仅显示数据密钥。

不使用此（示例）

{
    "to": "a6345d0278adc55d3474f5",
    "data": {
        "message": "Hello World!"
    },
    "notification": {
        "body": "Hello World \u270c",
        "badge": 1,
        "sound": "ping.aiff"
    }
}

代替使用此（示例）：

{
    "to": "a6345d0278adc55d3474f5",
    "data": {
        "message": "Hello World!"
    }
}

Answer 2

尝试查看 Logcat 中是否有错误。

当应用程序被杀死时，您的所有对象都会被销毁。当你点击你的动作时，它们必须被新实例化。您可能在某个地方有一个 NullPointerException，在正常生命周期中使用时该对象显然不是 null，但是由于您没有在 {{ 中再次实例化它，所以它变为 null 1}}。

应用被杀死时，Android通知操作按钮不起作用

2 个答案: