Pure code adaptation

Pure code adaptation

Look at the screen aspect ratio of each model Apple

4.0 inches ( the iPhone. 5, the iPhone 5S ) aspect ratio of 320/568 = 0.563

4.7 inch ( the iPhone. 6, the iPhone 6S, the iPhone. 7, the iPhone 7S ) aspect ratio of 375/668 = 0.562

5.5 inch ( the iPhone Plus. 6, the iPhone 6S  Plus, the iPhone. 7 Plus, the iPhone 7S  Plus ) aspect ratio of  414/736 = 0.5625

It can be seen that substantially the same aspect ratio, the resolution can be calculated in the frame on which the screen according to a further screen, as follows:

// get the screen width and height

#define ScreenWidth [UIScreen mainScreen].bounds.size.width;

#define ScreenHeight [UIScreen mainScreen].bounds.size.height;

// to 4.0 -inch screen ( iPhone5s ) as a reference, it can also be 4.7-inch or 5.5-inch screen as the base

#define AutoSizeScaleX  [UIScreen mainScreen].bounds.size.width / 320.0;

#define AutoSizeScaleY  [UIScreen mainScreen].bounds.size.height / 568.0;

// Inline method defined macro size

CG_INLINE CGRect MSRectMake(CGFloat x, CGFloat y, CGFloat width, CGFloat height)

{

    CGRect rectum;

    

    rect.origin.x = x * AutoSizeScaleX;

    rect.origin.y = y * AutoSizeScaleY;

    rect.size.width = width * AutoSizeScaleX;

    rect.size.height = height * AutoSizeScaleY;

    

    return rect;

}

用法：用MSRectMake替换换系统的RectMake即可

UIView *myView = [[UIView alloc] initWithFrame:MSRectMake(15, 64 + 15, 290, 50)];

myView.backgroundColor = [UIColor blackColor];

[self.view addSubview:myView];