Android 如何检测通知是否已被驳回？

在安卓系统中，当用户向左滑动通知并将其删除时，是否有任何方法可以检测到？我正在使用alarmmanager设置重复警报，当用户取消通知时，我需要停止重复警报。这是我的密码：

设置重复警报：

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), repeatFrequency, displayIntent);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Get the notification ID.
    int notifID = getIntent().getExtras().getInt("Reminder_Primary_Key");

    //Get the name of the reminder.
    String reminderName = getIntent().getExtras().getString("Reminder_Name");

    //PendingIntent stores the Activity that should be launched when the user taps the notification.
    Intent i = new Intent(this, ViewLocalRemindersDetail.class);
    i.putExtra("NotifID", notifID);
    i.putExtra("notification_tap", true);

    //Add FLAG_ACTIVITY_NEW_TASK to stop the intent from being launched when the notification is triggered.
    PendingIntent displayIntent = PendingIntent.getActivity(this, notifID, i, Intent.FLAG_ACTIVITY_NEW_TASK);

    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notif = new Notification(R.drawable.flag_red_large, reminderName, System.currentTimeMillis());

    CharSequence from = "Here's your reminder:";

    CharSequence message = reminderName;        
    notif.setLatestEventInfo(this, from, message, displayIntent);

    //Pause for 100ms, vibrate for 250ms, pause for 100ms, and vibrate for 500ms.
    notif.defaults |= Notification.DEFAULT_SOUND;
    notif.vibrate = new long[] { 100, 250, 100, 500 };
    nm.notify(notifID, notif);

    //Destroy the activity/notification.
    finish();

}

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (action == null || !action.equals(Config.NotificationDeleteAction)) {
            return;
        }

        // Do some sweet stuff
        int x = 1;
    }
}

notificationBuilder
       ...
        .setDeleteIntent(createDeleteIntent())
       ...

我的通知代码：

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), repeatFrequency, displayIntent);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Get the notification ID.
    int notifID = getIntent().getExtras().getInt("Reminder_Primary_Key");

    //Get the name of the reminder.
    String reminderName = getIntent().getExtras().getString("Reminder_Name");

    //PendingIntent stores the Activity that should be launched when the user taps the notification.
    Intent i = new Intent(this, ViewLocalRemindersDetail.class);
    i.putExtra("NotifID", notifID);
    i.putExtra("notification_tap", true);

    //Add FLAG_ACTIVITY_NEW_TASK to stop the intent from being launched when the notification is triggered.
    PendingIntent displayIntent = PendingIntent.getActivity(this, notifID, i, Intent.FLAG_ACTIVITY_NEW_TASK);

    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notif = new Notification(R.drawable.flag_red_large, reminderName, System.currentTimeMillis());

    CharSequence from = "Here's your reminder:";

    CharSequence message = reminderName;        
    notif.setLatestEventInfo(this, from, message, displayIntent);

    //Pause for 100ms, vibrate for 250ms, pause for 100ms, and vibrate for 500ms.
    notif.defaults |= Notification.DEFAULT_SOUND;
    notif.vibrate = new long[] { 100, 250, 100, 500 };
    nm.notify(notifID, notif);

    //Destroy the activity/notification.
    finish();

}

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (action == null || !action.equals(Config.NotificationDeleteAction)) {
            return;
        }

        // Do some sweet stuff
        int x = 1;
    }
}

notificationBuilder
       ...
        .setDeleteIntent(createDeleteIntent())
       ...

我知道我需要调用alarmManager.cancel（displayIntent）以取消重复报警。然而，我不明白该把代码放在哪里。只有当用户点击通知或取消通知时，我才需要取消重复警报。谢谢你的帮助

我相信这就是你想要的。医生说：

当用户通过“全部清除”按钮或单独将其刷走而明确取消通知时执行的意图。这可能不应该启动一项活动，因为其中几个活动将同时发送

---

对所有未来的人来说，你可以注册一个广播接收器来收听通知

创建新的广播接收器：

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), repeatFrequency, displayIntent);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Get the notification ID.
    int notifID = getIntent().getExtras().getInt("Reminder_Primary_Key");

    //Get the name of the reminder.
    String reminderName = getIntent().getExtras().getString("Reminder_Name");

    //PendingIntent stores the Activity that should be launched when the user taps the notification.
    Intent i = new Intent(this, ViewLocalRemindersDetail.class);
    i.putExtra("NotifID", notifID);
    i.putExtra("notification_tap", true);

    //Add FLAG_ACTIVITY_NEW_TASK to stop the intent from being launched when the notification is triggered.
    PendingIntent displayIntent = PendingIntent.getActivity(this, notifID, i, Intent.FLAG_ACTIVITY_NEW_TASK);

    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notif = new Notification(R.drawable.flag_red_large, reminderName, System.currentTimeMillis());

    CharSequence from = "Here's your reminder:";

    CharSequence message = reminderName;        
    notif.setLatestEventInfo(this, from, message, displayIntent);

    //Pause for 100ms, vibrate for 250ms, pause for 100ms, and vibrate for 500ms.
    notif.defaults |= Notification.DEFAULT_SOUND;
    notif.vibrate = new long[] { 100, 250, 100, 500 };
    nm.notify(notifID, notif);

    //Destroy the activity/notification.
    finish();

}

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (action == null || !action.equals(Config.NotificationDeleteAction)) {
            return;
        }

        // Do some sweet stuff
        int x = 1;
    }
}

notificationBuilder
       ...
        .setDeleteIntent(createDeleteIntent())
       ...

在应用程序类中注册广播接收器：

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), repeatFrequency, displayIntent);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Get the notification ID.
    int notifID = getIntent().getExtras().getInt("Reminder_Primary_Key");

    //Get the name of the reminder.
    String reminderName = getIntent().getExtras().getString("Reminder_Name");

    //PendingIntent stores the Activity that should be launched when the user taps the notification.
    Intent i = new Intent(this, ViewLocalRemindersDetail.class);
    i.putExtra("NotifID", notifID);
    i.putExtra("notification_tap", true);

    //Add FLAG_ACTIVITY_NEW_TASK to stop the intent from being launched when the notification is triggered.
    PendingIntent displayIntent = PendingIntent.getActivity(this, notifID, i, Intent.FLAG_ACTIVITY_NEW_TASK);

    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notif = new Notification(R.drawable.flag_red_large, reminderName, System.currentTimeMillis());

    CharSequence from = "Here's your reminder:";

    CharSequence message = reminderName;        
    notif.setLatestEventInfo(this, from, message, displayIntent);

    //Pause for 100ms, vibrate for 250ms, pause for 100ms, and vibrate for 500ms.
    notif.defaults |= Notification.DEFAULT_SOUND;
    notif.vibrate = new long[] { 100, 250, 100, 500 };
    nm.notify(notifID, notif);

    //Destroy the activity/notification.
    finish();

}

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (action == null || !action.equals(Config.NotificationDeleteAction)) {
            return;
        }

        // Do some sweet stuff
        int x = 1;
    }
}

notificationBuilder
       ...
        .setDeleteIntent(createDeleteIntent())
       ...

“如果您的应用程序以API级别26或更高为目标，则您不能使用清单为大多数隐式广播（并非专门针对您的应用程序的广播）声明接收器。”

您可能注意到了静态变量Config.NotificationDeleteAction。这是通知的唯一字符串标识符。它通常遵循以下{namespace}{actionName}约定：

you.application.namespace.NOTIFICATION\u删除

在通知生成器上设置删除意图：

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), repeatFrequency, displayIntent);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //Get the notification ID.
    int notifID = getIntent().getExtras().getInt("Reminder_Primary_Key");

    //Get the name of the reminder.
    String reminderName = getIntent().getExtras().getString("Reminder_Name");

    //PendingIntent stores the Activity that should be launched when the user taps the notification.
    Intent i = new Intent(this, ViewLocalRemindersDetail.class);
    i.putExtra("NotifID", notifID);
    i.putExtra("notification_tap", true);

    //Add FLAG_ACTIVITY_NEW_TASK to stop the intent from being launched when the notification is triggered.
    PendingIntent displayIntent = PendingIntent.getActivity(this, notifID, i, Intent.FLAG_ACTIVITY_NEW_TASK);

    NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    Notification notif = new Notification(R.drawable.flag_red_large, reminderName, System.currentTimeMillis());

    CharSequence from = "Here's your reminder:";

    CharSequence message = reminderName;        
    notif.setLatestEventInfo(this, from, message, displayIntent);

    //Pause for 100ms, vibrate for 250ms, pause for 100ms, and vibrate for 500ms.
    notif.defaults |= Notification.DEFAULT_SOUND;
    notif.vibrate = new long[] { 100, 250, 100, 500 };
    nm.notify(notifID, notif);

    //Destroy the activity/notification.
    finish();

}

public class NotificationBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (action == null || !action.equals(Config.NotificationDeleteAction)) {
            return;
        }

        // Do some sweet stuff
        int x = 1;
    }
}

notificationBuilder
       ...
        .setDeleteIntent(createDeleteIntent())
       ...

其中，createDeleteIntent是以下方法：

private PendingIntent createDeleteIntent() {
    Intent intent = new Intent();
    intent.setAction(Config.NotificationDeleteAction);

    return PendingIntent.getBroadcast(
            context,
            0,
            intent,
            PendingIntent.FLAG_ONE_SHOT
    );
}

---

当您的通知被驳回时，您注册的广播接收器应该会收到意向书。

您还可以使用Activity PendingEvent，如果您有一个可以处理驳回的活动，这可能更容易实现，因为您不必创建和配置广播接收器

public static final String DELETE_TAG = "DELETE_TAG";

private PendingIntent createDeleteIntent(Context context) {
    Intent intent = new Intent(context, MyActivity.class);
    intent.putExtra(DELETE_TAG, true);

    return PendingIntent.getActivity(
            context,
            0,
            intent,
            PendingIntent.FLAG_ONE_SHOT
    );
}

---

MyActivity将在其onCreate（）中接收意图，在本例中，可以查找DELETE_标记以识别它。

没关系，我在这里找到了答案：。谢谢。顺便说一句，我有targetSdkVersion 30，我只能在清单中指定BroadcastReceiver—使用与

Config.NotificationDeleteAction

相对应的

。备选文档：