通知意图 - 如何在不重置的情况下恢复通知中的 activity？

Question

我正在制作一个计时器应用程序。这样当用户点击开始按钮时，通知就会出现，而当用户点击通知时，计时器应该会恢复，而不是显示 new activity 从第一个开始。

我试过了TaskStackbuilder问题依旧

Intent resultIntent = new Intent(getApplicationContext(), MainActivity.class);

TaskStackBuilder stackBuilder = TaskStackBuilder.create(getApplicationContext());
stackBuilder.addNextIntentWithParentStack(resultIntent);

PendingIntent res = stackBuilder.getPendingIntent(0,PendingIntent.FLAG_UPDATE_CURRENT);

Notification not = new NotificationCompat.Builder(this,CHANNEL_ID)
            .setSmallIcon(R.drawable.ic_timer)
            .setContentTitle("Productivity Timer")
            .setContentText("Your Timer is Running")
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setCategory(NotificationCompat.CATEGORY_PROGRESS)
            .setOngoing(true)
            .setContentIntent(res)
            .build();

notificationManager.notify(1,not);

Answer 1

我对你的代码做了一些修改。请查看相同的内容，如果您仍有任何疑问，请告诉我。

 Intent resultIntent = new Intent(getApplicationContext(), MainActivity.class);


PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);


Notification not = new NotificationCompat.Builder(this,CHANNEL_ID)
        .setSmallIcon(R.drawable.ic_timer)
        .setContentTitle("Productivity Timer")
        .setContentText("Your Timer is Running")
        .setPriority(NotificationCompat.PRIORITY_HIGH)
        .setCategory(NotificationCompat.CATEGORY_PROGRESS)
        .setOngoing(true)
        .setContentIntent(pendingIntent)
        .build();
     notificationManager.notify(1,not);

谢谢。

Answer 2

我用这个来恢复activity

清单

<activity
    android:name=".MainActivity"
    android:launchMode="singleTask" />

您也可以在需要将 activity 置于最前面时使用它

private void bringAppFront() {
    try {
        Intent i = new Intent(this, MainActivity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(i);
    } catch (Throwable e) {
        e.printStackTrace();
    }
}

通知意图 - 如何在不重置的情况下恢复通知中的 activity？

Notification Intent - How to resume the activity in a notification without resetting?

java

android

timer

android-intent

android-notifications