[Tips] android 4.4 dialog full screen

android 4.4 中 dialog 顶部会背遮挡，原因是默认模式下dialog非full screen

需要在onCreateView()添加以下code:

getDialog().getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

http://stackoverflow.com/questions/20121711/dialog-on-android-kitkat-seems-to-be-cut/20281449#20281449?newreg=8fece0e040a14011b6bbb199487620c1