Android--获取标题栏，状态栏，屏幕高度

Rect frame = new Rect();  
getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);  
int statusBarHeight = frame.top; 

android:layout_width="?attr/actionBarSize"
android:layout_height="?attr/actionBarSize"

DisplayMetrics dm = new DisplayMetrics();  
  
this.getWindowManager().getDefaultDisplay().getMetrics(dm);//this指当前activity  
  
screenWidth =dm.widthPixels;  
  
screenHeight =dm.heightPixels;