我如何知道在通知中单击了哪个按钮？答案

【问题标题】：How can I know which button was clicked in the notification?我如何知道在通知中单击了哪个按钮？
【发布时间】：2020-09-22 14:51:23
【问题描述】：

我正在开发一个应用程序，通知中有 2 个按钮。如何知道用户点击了哪个按钮？

这是我的通知代码；

public void  NotificationSettings(Context context){
        Intent stateIntent = new Intent(context, MyBroadcastReceiver.class);
        stateIntent.putExtra("id", 100);
        PendingIntent pendingIntent =
                PendingIntent.getBroadcast(context, 0, stateIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder = new NotificationCompat.Builder(context, "access2020")
                .setSmallIcon(R.drawable.ic_baseline_add_alert_24)
                .setContentTitle("Academy Notification")
                .setContentText("Hey this is an important notifications")
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                .addAction(R.drawable.ic_baseline_add_alert_24, "Set Active", pendingIntent)
                .addAction(R.drawable.ic_baseline_add_alert_24,"Dismiss", pendingIntent);

        notificationManager = NotificationManagerCompat.from(context);
    }

和我的广播

public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "test", Toast.LENGTH_SHORT).show();
        int notificationId = intent.getIntExtra("id", 0);
        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
        notificationManager.cancel(notificationId);
        }

【问题讨论】：

标签： java android android-studio broadcastreceiver android-notifications

【解决方案1】：

你应该将一个标识符作为额外的传递给意图，然后在你的广播接收器中检索。

public void  NotificationSettings(Context context){
        // put an extra identifier for Set Active Action
        Intent setActiveStateIntent = new Intent(context, MyBroadcastReceiver.class);
        setActiveStateIntent.putExtra("id", 100);
        setActiveStateIntent.putExtra("action", "Action.SetActive");
        PendingIntent setActivePendingIntent =
                PendingIntent.getBroadcast(context, 0, setActiveStateIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        // put an extra identifier for Dismiss
        Intent dismissStateIntent = new Intent(context, MyBroadcastReceiver.class);
        dismissStateIntent.putExtra("id", 100);
        dismissStateIntent.putExtra("action", "Action.Dismiss");
        PendingIntent dismissPendingIntent =
                PendingIntent.getBroadcast(context, 0, dismissStateIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder = new NotificationCompat.Builder(context, "access2020")
                .setSmallIcon(R.drawable.ic_baseline_add_alert_24)
                .setContentTitle("Academy Notification")
                .setContentText("Hey this is an important notifications")
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                .addAction(R.drawable.ic_baseline_add_alert_24, "Set Active", setActivePendingIntent)
                .addAction(R.drawable.ic_baseline_add_alert_24,"Dismiss", dismissPendingIntent);

        notificationManager = NotificationManagerCompat.from(context);
}

然后在您的 BroadcastReceiver 中，您可以执行以下操作：

public void onReceive(Context context, Intent intent) {
        if(intent.getStringExtra("action").equals("Action.Dismiss")) {
             // perform your dismiss action
        } else if (intent.getStringExtra("action").equals("Action.SetActive")) {
            // perform your set active logic
        } else {
           // handle invalid action
        }
        
}

【讨论】：

谢谢，但是 addAction 方法正在使用 pendingintent，你写的 Intent。你能检查一下吗？同时您可以检查我的答案，也许它是正确的方式（如下）
实际上仍然无法正常工作。也许你可以检查我的答案。
@BurhanYaprak 什么不起作用？你试过我的解决方案了吗？
无论我点击哪个按钮，第一个按钮都会起作用（每次点击都会使用这个“如果”：if (intent.getStringExtra ("action"). Equals ("Action.Dismiss")) { ）。
现在我更改了第二个待处理意图的请求代码（它是 0，现在是 1），现在它正在工作。你能检查一下吗？（这个：PendingIntent.getBroadcast(context, 0, dismissStateIntent, PendingIntent.FLAG_UPDATE_CURRENT);）

【解决方案2】：

我用这种方法解决了，但我仍然不确定这是正确的方法

public void  NotificationSettings(Context context){
        Intent stateIntent0 = new Intent(context, MyBroadcastReceiver.class);
        Intent stateIntent1 = new Intent(context, MyBroadcastReceiver.class);


        stateIntent0.putExtra("id", 100);
        stateIntent1.putExtra("id", 200);


        PendingIntent pendingIntent0 =
                PendingIntent.getBroadcast(context, 0, stateIntent0, PendingIntent.FLAG_UPDATE_CURRENT);

        PendingIntent pendingIntent1 =
                PendingIntent.getBroadcast(context, 1, stateIntent1, PendingIntent.FLAG_UPDATE_CURRENT);

        builder = new NotificationCompat.Builder(context, "lemubitA")
                .setSmallIcon(R.drawable.ic_baseline_add_alert_24)
                .setContentTitle("Lemubit Academy Notification")
                .setContentText("Hey this is an important notifications")
                .setPriority(NotificationCompat.PRIORITY_DEFAULT)
                .addAction(R.drawable.ic_baseline_add_alert_24, "Set Active", pendingIntent0)
                .addAction(R.drawable.ic_baseline_add_alert_24,"Dismiss", pendingIntent1);

        notificationManager = NotificationManagerCompat.from(context);
    }

这是我的广播

int notificationId = intent.getIntExtra("id", 0);
        Toast.makeText(context, notificationId+"", Toast.LENGTH_SHORT).show();
        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
        notificationManager.cancel(notificationId);

【讨论】：