How can I get the size of the android application window and not the physical screen size?

How can I get the size of the android application window and not the
physical screen size?

References

Reference NO 1

http://stackoverflow.com/questions/13654861/how-can-i-get-the-size-of-the-android-application-window-and-not-the-physical-sc

Reference NO 2

http://developer.android.com/guide/practices/screens_support.html

Reference NO 3

http://developer.android.com/guide/topics/manifest/activity-element.html

Reference NO 4

http://grokbase.com/t/gg/android-developers/12bkmhnaxd/how-to-get-device-raw-width-and-height-or-actual-screen-width-and-height

Reference NO 5

http://android-developers.blogspot.com/2011/07/new-tools-for-managing-screen-sizes.html

Reference NO 6

http://www.codeproject.com/Tips/313848/Get-actual-screen-size-for-the-application-layout

Reference NO 7

http://coding.smashingmagazine.com/2011/06/30/designing-for-android/

Reference NO 8

http://tripleodeon.com/2011/12/first-understand-your-screen/