Image stretch encapsulation and image stretch Encapsulation

Image stretch encapsulation and image stretch Encapsulation
There are three ways to achieve image stretching. 1. directly modify the image resources. 2. You can directly modify the stretching through the image box.

 

3. through code implementation // you can change the NSString parameter to the NSArray array to store the parameter (that is, you can modify multiple parameters) + (UIImage *) stretchImageWith :( NSString *) imageString {// instantiate the Image object UIImage * otherImage = [UIImage imageNamed: imageString]; // calculate the Image center point
CGFloat halfWidth = otherImage. size. width/2; CGFloat halfHeight = otherImage. size. height/2; // stretch the image. return [otherImage resizableImageWithCapInsets: UIEdgeInsetsMake (halfHeight, halfWidth, halfHeight, halfWidth) resizingMode: UIImageResizingModeStretch];}