I develope a lockscreen app which installed in system/app,the app has permission:android.permission.BIND_APPWIDGET and android:sharedUserId = "android.uid.system". In my app I would bind system music appwidget as default.And if I run it just as a system app,it runs properly and binds widget successfully.But I want to use reflection to reflec the lockscreen view when lockscreen should be actived(this is what I exactly want to do).So I just modified createLockScreen method in LockPatternKeyguardView as before.But when it runs to bind appwidget code, error happens with no android.permission.BIND_APPWIDGET permission,says uid of my app > 1000 or something like that. And I also notice that AppWidgetPickerActivity in system Settings app use bindAppWidgetId() either and it even doesn't declare android.permission.BIND_APPWIDGET and it still works properly. I wonder why my app runs properly as a normal system app and it can bind widget successfully but when it ran by reflection in system_server process,things goes wrong,and why AppWidgetPickerActivity does not declare the permission it still binds widgets successfully with no security exception?
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