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#Android java permissions windowmanager addview androidI compared the API level 25 Toast class and others for the difference and I found an interesting thing there:įrom API 25, Android added a new param IBinder windowToken for Toast#handleShow(), and It brought an exception. So now, after all, my research and analysis on BadTokenException, what I noticed about all the crashes there on Crashltyics: If returned the WindowManagerGlobal.ADD_BAD_APP_TOKEN, the exception occurs when the WMS.addWindow () function is called to check whether the window to be added is not in violation of the policy according to the android window policy. Android does not need permission to display floating window, and talk about reverse. Caused by: : Unable to add window 7a40cfc - permission denied for window type 2038 at (ViewRootImpl.java:817) at (WindowManagerGlobal. Return WindowManagerGlobal.ADD_BAD_APP_TOKEN #Android java permissions windowmanager addview codeThis ensures secure interaction between the application and the window manager (by making it impossible to add windows on top of other applications), and also makes it easy for the activity manager to make direct requests to the window manager.Īnd the code that throws “BadTokenException” : The activity manager gives this token to both the (*application) and the window manager, and it sends the token to the window manager each time it wants to add a new window to the screen. When an application starts up for the first time, the ActivityManagerService creates a special kind of window token called an application window token, which uniquely identifies the application’s top-level container window. Without window tokens, this necessary identification step wouldn’t be possible and the window manager wouldn’t be able to protect itself from malicious applications. You may check out the related API usage on the sidebar. ![]() If the tokens don’t match, the window manager rejects the request and throws a BadTokenException. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. The window manager protects against this by requiring applications to pass their application’s window token as part of each request to add or remove a window. Facing this ISSUE below is my code : Unable to add window - token android.os.BinderProxy4bf1d6a is not valid is your. Window tokens are important for security reasons because they make it impossible for malicious applications to draw on top of the windows of other applications. Window Tokens:Īs the name suggest, a window token is a special type of Binder token used by window manager to uniquely identify a window in the system. windowmanager.layoutparams p new windowmanager. Any help in this regard will be appreciated. '' Permission to crunch an app that does not work. ![]() #Android java permissions windowmanager addview how toFLAGNOTFOCUSABLE //Add view in WindowManager mSecondaryWm. I really do not know how to use this library in Android 8.0. WindowManagerService (WMS) is a system service that manages the windows on Android. To run in Samsung DeX, apps should support Android Multi-Window this enables minimizing. ![]()
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