I'd like to be able to listen for notifications being sent to the status bar, and intercept and suppress (temporarily) those notifications.
I've seen AccessabilityEvent.TYPE_NOTIFICATION_STATE_CHANGED, and NotificationListenerService.
However, I just don't want to be informed when a notification is displayed, I want to prevent the notification from being displayed.
I can see how this could potentially be a security threat, so I can understand if it's not possible. Is this possible? If so, how would I go about doing it?
I think you're on the right track with the NotificationListenerService. Google has made these API's available from Android 4.3 on, so an application using this method would just be available for new devices.
In the following blogpost you can find an example of what you can do with the NotificationListenerService: http://weimenglee.blogspot.ch/2014/03/android-tip-notification-listener.html
The basic idea is to implement the onNotificationPosted() method, which gives you a StatusBarNotification instance. You should then be able to cancel the notification with this.cancelNotification(
notif.getPackageName(),
notif.getTag(),
notif.getId());
See the blogpost for a further description of what to extend and how to implement the methods.
Hope this helps.
Related
I've been trying to look up solution but I just can't seem to find one that suits my need. It could be that I'm not using the correct keyword, so I'm gonna try to explain it the best I can.
Simply saying, I'm building an Android application. The application need to detect some other activities on the phone and show some message.
For example:
User launch MyApplication.
User received some notification from another app. (a phone call, text message, email, whatever)
MyApplication shows a message via toast or dialog, saying that "you just received an notification from another app"
I'm not entirely sure what function I should be looking for here, any help is appreciated.
Thanks!
You will want to look at NotificationListenerService, this will let you receive calls from the system when new notifications are posted or removed, or their ranking changed.
Once you receive a callback from the NotificationListenerService, you will want to create a Toast.
Take a look at this tutorial should help you get started.
To detect when other apps ask the OS to display a Notification, you would need to implement a NotificationListenerService. The user would then not only need to install your app, but also go into Settings and specifically allow you to monitor notifications.
I'd like my android auto notification to not have any reply mechanism to it. I just want a notification that you can swipe to dismiss, but the only two options i see for android auto are messaging and audio. The messaging makes the notification have a reply to it like this:
notice how there is a microphone for user to reply. I dont want that on my notification. I only want to display info but no reply mechanism. I am not interested in reply, only to notify user of something. i want it to look like this instead but it seems only system has this kinds of notifications.
Android Auto has defined guidelines for Messaging Apps.
It didn't consider normal notifications as a scenario that needs to be addressed now in Auto environment.
We can hope it may be made more flexible on future along with measures to make sure that distraction is avoided by strict certification process.
So the answer to your question is - Not possible now.
I want to be able to programmatically check if there are any notifications present (preferably only non-permanent notifications) in the status bar. This should include all notifications and not just ones created by my app. I don't need information about the specific notifications or even the total number, I just want to know IF there are notifications being displayed in the status bar currently or not.
I have researched and found that I'm likely going to have to deal with the accessibility service. That's fine, but so far I haven't found a solution to check for current notifications, all solutions so far only show how to detect NEW notifications. I want to be able to query at any instant and check for presence of notifications.
One (ugly) option would be to constantly keep track of all new notifications and clearing of notifications, but I fear this may not be reliable. I want to know if there any simpler or cleaner methods.
Any guidance will be really helpful.
The android home page displays notifications from different applications.
I would like to read those notifications using my program.
I tried to find information on that in forums and in android help but I was not able to find any information.
My actual goal is to read the notifications and if the notification is about an email from a certain person then I want to perform something in my application.(I use touch down for my email)
Any help is appreciated.
Not possible due to security reasons.
If you want to respond to events then you should try listening to them directly with intents.
You need to create an AccessibilityService and set it to listen to TYPE_NOTIFICATION_STATE_CHANGED events. This way, each time any of the application packages specified while configuring the AccessibilityService generates a new notification, the onAccessibilityEvent callback of your service will be called with all the information about the notification.
I need to know when a notification is created because I want to change the audio mode. Is possible?
Thank you very much.
With the release of Android 4.3 it is possible to get Notifications within a third-party app.
See NotificationListenerService for reference
You can use Notification class, However an answer on SO, suggests that
There is currently no generic way to intercept Notifications sent from other applications.
However if you want to listen something like SMS notifications than this link can be useful for you..