Android (“vanilla” android without custom launchers and touch interfaces) does not allow changing of the application icon, because it is sealed in the .apk tightly once the program is compiled. There is no way to change it to a ‘drawable’ programmatically using standard APIs. You may achieve your goal by using a widget instead of … Read more
Call enabledRemoteNotificationsTypes and check the mask. For example: UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes]; if (types == UIRemoteNotificationTypeNone) // blah blah blah iOS8 and above: [[UIApplication sharedApplication] isRegisteredForRemoteNotifications]
Take a look at this guide (creating a notification) and to samples ApiDemos “StatusBarNotifications” and “NotificationDisplay”. For managing if the activity is already running you have two ways: Add FLAG_ACTIVITY_SINGLE_TOP flag to the Intent when launching the activity, and then in the activity class implement onNewIntent(Intent intent) event handler, that way you can access the … Read more
In modern browsers, there are two types of notifications: Desktop notifications – simple to trigger, work as long as the page is open, and may disappear automatically after a few seconds Service Worker notifications – a bit more complicated, but they can work in the background (even after the page is closed), are persistent, and … Read more