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param timeout The timeout in milliseconds. 2removeViewnot attached to window manager. dialogWindowManagerAddViewactivityonDestroyViewremoveViewImmediate ()removeView (). removeView(WindowManagerImpl.java:201) at android.view. The removeView method here has two removeView and removeViewImmediate, which represent asynchronous deletion and synchronous deletion, which we usually use It is an asynchronous deletion, and then we enter the WindowManagerGlobal class. (finish)ActivityDialogPopupWindow (dismiss).

* Create a window containing this view and show it. It will go away automatically after timeout milliseconds of inactivity. IllegalArgumentException: View not attached to window manager at. So, if(lockedFlag = false & viewFlag = true & view != null) else if(event.getKe圜ode() = KeyEvent.18 View Complete Implementation : DragView.java The method of WindowManager is very simple, there are three methods, AddView (), removeView (), updateViewLayout () AddView() //Add View removeView(). WindowManageraddView (View view, ViewGroup.LayoutParams params),removeView (View view),removeViewImmediate (View view)WindowManager.

to make it more clear, you prevent to show any dialog after onDestroy called. I use two flag variable, one is viewFlag(when I call addView( ), viewFlag = true and when I call removeView( ), viewFlag = false), the other one is lockedFlag(when the top App is locked by user add in database, lockedFlag = true, and when it's not locked, lockedFlag = false) IllegalArgumentException: View not attached to window manager error when.

Hello, I am so happy as I use a simple way to solve my problem. The following uses the experiment to verify: activitymain. (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE) ĮnterPassView = layoutInflater.inflate(R.layout.activity_enterpass, null) Viewing the calling process of these two functions can be found that the call for the addView is for ViewRootiMPL, that is, it adds the View equivalent to the bottom of PhoneWindow.DecorView and AddContentView finally points to ViewGroup.AddView (ChildView).

Just like that: LayoutInflater layoutInflater = Guys， I am developing an android AppLock Application, and I use WindowManager to add a gesture lock view.Īnd I can't rewrite the View to override the dispatchKeyEvent() function, as I use LayoutInflater to inflate my view.