12/3/2023 0 Comments Windowmanager review![]() WindowManager windowManager = (WindowManager)getSystemService(WINDOW_SERVICE) įor this to work, you will need to add the following permission to your AndroidManifest.xml įor android api version > 23, _ALERT_WINDOW need to request runtime. Define the position of the window within the screen Make the underlying application window visible through any transparent parts Display it on top of other application windows, but only for the current user Shrink the window to wrap the content rather than filling the screen For example: WindowManager.LayoutParams p = new WindowManager.LayoutParams( Instead you need to display a window from a background service. If you want to create a floating window that is visible in front of other applications, you can't use an activity because your activity will stop when another app comes to the foreground, and its window will be hidden or destroyed. So normally you don't need to worry about windows - you just create an activity and Android will do the rest for you.īut you need to interact with the WindowManager if you want to do something unusual like create floating windows that don't fill the screen. The default window fills the screen, so that your activity's window hides any other activities - the WindowManager will display whichever window is on top. When you call setContentView on an activity, it attaches that view to the activity's default window. ![]() Among other things, it automatically performs window transitions and animations when opening or closing an app or rotating the screen.Įvery activity has a Window that is used to display its content on the screen. If you make a mistake in the Registry Editor, you could cause serious system problems that may require a complete reinstallation of Windows.The Android WindowManager is a system service, which is responsible for managing the z-ordered list of windows, which windows are visible, and how they are laid out on screen. However, it is important to note that this is an advanced operation and should only be attempted by experienced users who understand the risks involved. To turn off the DWM, you can do so via the Windows Registry Editor. Likewise, if you have an older or less-powerful computer, disabling the DWM may help to free up system resources and improve performance. ![]() For example, if you are experiencing screen display issues, you may need to test whether turning off the DWM resolves the problem. However, there are some cases where you may need to turn off the DWM in order to troubleshoot a problem or improve system performance. In addition, a number of other system functions rely on the DWM, such as thumbnail previews of windows, full-screen display mode, and the new Aero Snap and Aero Peek features that are included in Windows 7 and later. Without the DWM, you would lose all of the visual effects that make Windows such an attractive and user-friendly operating system. It is responsible for rendering and compositing windows, as well as managing the appearance of features such as taskbar and Start menu animations, Aero Glass transparency effects, and other visual elements.ĭo you need it? The short answer is yes – you do need the Desktop Window Manager to run Windows properly. The Desktop Window Manager (DWM.exe) is a core component of the Windows operating system that is responsible for the management of visual effects and the overall layout of the desktop environment.
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