ios 获取屏幕的属性和宽度
ios 获取屏幕的属性和宽度app尺寸，去掉状态栏CGRect r = [ UIScreen mainScreen ].applicationFrame;r=0，20，320，460屏幕尺寸CGRect rx = [ UIScreen mainScreen ].bounds;r=0，0，320，480状态栏尺寸CGRect rect; rect = [[UIApplication ...
