app尺寸椎工,去掉狀態(tài)欄
CGRect r = [ UIScreen mainScreen ].applicationFrame;
屏幕尺寸
CGRect rx = [ UIScreen mainScreen ].bounds;
狀態(tài)欄尺寸
CGRect rect = [[UIApplication sharedApplication] statusBarFrame];
uiview尺寸
CGRect rect = self.view.frame;