Anxiety caused chest tightness can feel like a tension, pressure, gripping feeling, stabbing pain, muscle tension, burning, numbness, an uneasiness, or a fullness in the chest area (which includes the diaphragmâa sheet of internal muscle that extends across the bottom of the rib cage).
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.mong other things, it automatically performs window transitions and animations when opening or closing an app or rotating the screen. Every activity has a Window that is used to display its content on the screen. When you call setContentView on an activity, it attaches that view to the activity's default window.
Desktop composition is performed by the Desktop Window Manager (DWM). Through desktop composition, DWM enables visual effects on the desktop as well as various features such as glass window frames, 3-D window transition animations, Windows Flip and Windows Flip3D, and high resolution support. The Desktop Window Manager runs as a Windows service. It can be enabled and disabled through the Administrative Tools Control Panel item, under Services, as Desktop Window Manager Session Manager. Many of the DWM features can be controlled or accessed by an application through the DWM APIs.