After achieving device ownership, I am trying to implement a method to instruct the device to lock any given app into kiosk mode (or screen pinning mode). Since I have device ownership, the user is not asked for the permission to do so.
From the developer website, brief description tells me that it is possible to do what I am trying:
Programmatically: To activate screen pinning programmatically, call startLockTask() from your app. If the requesting app is not a device owner, the user is prompted for confirmation. A device owner app can call the setLockTaskPackages() method to enable apps to be pinnable without the user confirmation step.
This indicates that as a device owner app, I can pin other apps without user confirmation... but I have no idea how to.
I have been able to put my own app into pinned mode.
Any help would be appreciated.
Best How To :
setLockTaskPackages() is used the specify which applications (through their package names) will be able to programmatically be pinned without user confirmation. The
setLockTaskPackages() is called from your device owner app (most probably in your
So, in you owner device app, you'll have something like :
and then, in your "com.foo.myapp" application, you will be autorized to call :
Your application will immediately enter the Pinning mode, without any user confirmation.
If you don't first
register your application with
setLockTaskPackages, the application will be pinned but the user will have to confirm first.
Also notice that when an app is
setLockTaskPackages(), it has some different behaviours than the manual pin:
- the user cannot unpin manually the application by long-pressing Back + Recent Apps. You'll have to programmatically unpin your app with
- The "Home" and "Recent Apps" buttons are invisible (not displayed)
- When the app is unpinned (via stopLockTask()), the user will directly go back to Home : no Screen lock is displayed, even if a Keyguard is set (Pattern, code, or whatever Keyguard screen).