android 常用方法
1)
WindowManager windowManager = getWindowManager();
Display display = windowManager.getDefaultDisplay();
int screenWidth = display.getWidth();
int screenHeight = display.getHeight();
2)
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
//float width=dm.widthPixels*dm.density;
//float height=dm.heightPixels*dm.density;
Log.d(TAG, "get window width:" + dm.widthPixels + " height:"+dm.heightPixels);