简易的屏幕适配

//判断屏幕的尺寸

CGRect screenBounds = [[UIScreen mainScreen] bounds];

if (screenBounds.size.height == 568) {

//举例.......

//CalculateViewController *calculateCtrl = [[CalculateViewController alloc]initWithNibName:@"CalculateViewController" bundle:nil];

//self.window.rootViewController = calculateCtrl;

}else if(screenBounds.size.height == 480) {

//举例.......

//CalculateViewController *calculateCtrl = [[CalculateViewController alloc]initWithNibName:@"CalculateForThree" bundle:nil];

//self.window.rootViewController = calculateCtrl;

}