- Android check notifications enabled programmatically
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Android check notifications enabled programmatically
A notification is a message that Android displays outside your app's UI to provide the user with reminders, communication from other people, or other timely information from your app. Users can tap the notification to open your app or take an action directly from the notification. This page provides an overview of where notifications appear and the available features. If you want to start building your notifications, instead read Create a Notification. For more information about the design and interaction patterns, see the Notifications design guide. Additionally, see the Android Notifications Sample for a demonstration of best practices in using the Notification. Style API in both mobile and wearable apps. Notifications appear to users in different locations and formats, such as an icon in the status bar, a more detailed entry in the notification drawer, as a badge on the app's icon, and on paired wearables automatically. Figure 1. Notification icons appear on the left side of the status bar. Users can swipe down on the status bar to open the notification drawer, where they can view more details and take actions with the notification. Figure 2. Notifications in the notification drawer. Users can drag down on a notification in the drawer to reveal the expanded view, which shows additional content and action buttons, if provided. A notification remains visible in the notification drawer until dismissed by the app or the user. Beginning with Android 5. This behavior is normally for important notifications that the user should know about immediately, and it appears only if the device is unlocked. Figure 3. A heads-up notification appears in front of the foreground app. The heads-up notification appears the moment your app issues the notification and it disappears after a moment, but remains visible in the notification drawer as usual. You can programmatically set the level of detail visible in notifications posted by your app on a secure lock screen, or even whether the notification will show on the lock screen at all. Users can use the system settings to choose the level of detail visible in lock screen notifications, including the option to disable all lock screen notifications. Starting with Android 8. Figure 4. Notifications on the lock screen with sensitive content hidden. To learn more, see how to Set lock screen visibility. In supported launchers on devices running Android 8. Users can long-press on an app icon to see the notifications for that app. Users can then dismiss or act on notifications from that menu, similar to the notification drawer. Figure 5.
NotificationmanagercompatStarting in Android 8. For each channel, you can set the visual and auditory behavior that is applied to all notifications in that channel. Then, users can change these settings and decide which notification channels from your app should be intrusive or visible at all. Check out the video below for an overview of channels and other new notification features in Android 8. For sample code that uses notifications, including Android 8. The user settings for notification channels are available for each app in the system settings, as shown in figure 1. Figure 1. Notification settings for the Clock app and one of its channels. After you create a notification channel, you cannot change the notification behaviors—the user has complete control at that point. Though you can still change a channel's name and description. You should create a channel for each distinct type of notification you need to send. You can also create notification channels to reflect choices made by users of your app. For example, you can set up separate notification channels for each conversation group created by a user in a messaging app. When you target Android 8. If your targetSdkVersion is set to 25 or lower, when your app runs on Android 8. Creating an existing notification channel with its original values performs no operation, so it's safe to call this code when starting an app. See below for more information about importance levels. If you'd like to further customize your channel's default notification behaviors, you can call methods such as enableLightssetLightColorand setVibrationPattern on the NotificationChannel. But remember that once you create the channel, you cannot change these settings and the user has final control of whether these behaviors are active. You can also create multiple notification channels in a single operation by calling createNotificationChannels. Channel importance affects the interruption level of all notifications posted in the channel, and you must specify it in the NotificationChannel constructor. The importance level you assign to a channel applies to all notification messages that you post to it. To support devices running Android 7. The importance NotificationManager.
Android disable notifications programmatically
Android open notification settings programmatically