I am displaying multiple notifications using different ids to the notification. But I am unable to get clicked notification information in other activity. Please help me with some example. Thank you.
Status Bar Notification feature displays a persistent notification on the status bar of your Android device. This notification can be dismissed when the user has read it, and thus this makes it a good tool for delivering notifications to the users to respond at their convenience
The link that follows may help you
https://mobiforge.com/design-development/displaying-status-bar-notifications-android
Related
Currently, I have a mobile application written in Xamarin.Android. Because there are constant HTTP requests going on in the app, what I'd like to do is keep the application active after closing it.
What I am looking at, is for example after you close the app, in the background it keeps sending HTTP requests, but there is a local notification where when you click it you can open the app. There should be an explicit button for the exit which could be inside the application. In more details, HTTP requests are sent on some interval in seconds.
So my end goal is to have the app constantly running, if it's in a background, then show a notification that it's still up and be able to close it (even from the background) only from the inside of the app.
I couldn't find many resources specifically about this question and I am not quite sure what I can use in order to make this work.
Thanks in advance!
According to the documentation what you're trying to do is supported:
Sending notifications to the user
When a service is running, it can notify the user of events using
Toast Notifications or Status Bar Notifications.
A toast notification is a message that appears on the surface of the
current window for only a moment before disappearing. A status bar
notification provides an icon in the status bar with a message, which
the user can select in order to take an action (such as start an
activity).
Usually, a status bar notification is the best technique to use when
background work such as a file download has completed, and the user
can now act on it. When the user selects the notification from the
expanded view, the notification can start an activity (such as to
display the downloaded file).
See the Toast Notifications or Status Bar Notifications developer
guides for more information.
ref: https://developer.android.com/guide/components/services
ref: https://developer.android.com/guide/components/processes-and-threads
This is the first time I am integrating notifications into my application. I am using Firebase. Setup was extremely simple and I am able to view the notification in the tray.
So, when the application is open, and if it receives a notification. I would like to display the notification in the activity itself.
How should I go about this?
You can look at Gmail approach. If there is new mail in current thread, they show SnackBar with notification.
You need to determinate connected parts of your app. And if notification connected to part where current user is - show SnackBar, and if there is something completely different - show heads-up notification.
Guide how to do Heads-Up notifications here
Guide how to do SnackBar notifications here
Have you ever tried Pushbots , its an infra- Structure for Notifications , it has more interesting Features than Firebase. Give it a shot.
Pushbots link
I'm a beginner. I have a problem about custom notification.
I want to read all information of normal notification and custom notification use RemoteView.
Example I want get all information about notification music(art cover, song, next, pause, back action)
I search very very much, but can't find the document I need.
If you know, please tell me.
Thank so much!
What you're looking for is a NotificationListenerService. From the docs:
A service that receives calls from the system when new notifications are posted or removed, or their ranking changed.
If you're specifically looking for ways to read Metadata and the music app is using a MediaSessionCompat, you can use MediaControllerCompat.getMetadata() to read the data off of the notification.
To display the actual content of the notification in your app, what you can do is get one of the many RemoteViews from the Notification object you received, then use this answer to display your notification.
My intention is to display a notification with a personalised icon. However, if a notification with the same id is already displayed and then I need to add a new notification with the same id, my program will instead prepare a "stacked" version of the notification where the icon is changed to some generic icon and the notification content shows excerpts from the last and current notifications. Similar to how Gmail does when there are multiple emails.
To implement that I need to check if there are notifications of my app, currently displayed. I do not see any API to retrieve my own notifications.
I cannot simply cache the notification details that I have displayed till now, since in that case I need to know when they will be dismissed by the user, and update my cache accordingly. I also do not see any API to listen for dismiss events.
If you observe the gmail app notification behaviour properly u will notice that even when u dismiss one notification gmail shows you the same notification again in the list when a new notification comes. It looks to me that gmail is relying on total unread/unopened messages rather than keeping a cache of notifications.
There is no direct api for ur suggested SDK version. You need to fallback to ur own implementation. However, there is a way to know if a already showed notification was dismissed - How to know when my notification is cleared via Clear button?
This is possible with android 4.3 upwards now
See http://developer.android.com/reference/android/service/notification/NotificationListenerService.html#getActiveNotifications()
My application displays event notifications, and I'm looking for a way to have notification aggregation.
Meaning, I would like to show 4 notification, but if the fifth comes, I would like to collect all notifications and show only one general notification.
Os there a way to know how many live notifications i have?
Is it possible to approach these notification and cancel them?
Thanks!
According to the android design guidelines you should stack your notifications. So you should avoid showing multiple notification for the same app.
You can stack your notifications using
NotificationManager.notify(ID, notification) where you specify same ID for each notification.
You can check the docs on how to implement it.
For your case
Is there a way to know how many live notifications i have - No
But you can keep a track of the notifications using Shared Preferences, where you store the ID of the notificaion and remove it when the user clicks on the notificaion
Is it possible to approach these notification and cancel them? - Yes
You can cancel a notification using the cancel(int id) method, where you pass the ID of the notification to be removed.
So you can use this method to acheive what you want, but it advisable to stack all the notifications.