CGRect screenBounds = [[UIScreen
mainScreen]
bounds];
//iphone(320,480)返回整个屏幕的边界,包括状态栏所显示的空间
CGRect bounds = [[UIScreen
mainScreen]
applicationFrame];
//iphone(320,460)返回屏幕的可显示区域
CGRect screenBounds = [[UIScreen
mainScreen]
bounds];
//iphone(320,480)返回整个屏幕的边界,包括状态栏所显示的空间
CGRect bounds = [[UIScreen
mainScreen]
applicationFrame];
//iphone(320,460)返回屏幕的可显示区域