IOS开发之图片拉伸不变形实现

ios开发之图片拉伸不变形实现

(uiimage )imagecreatwithcap:(nsstring )imagename { 
uiimage *image = [uiimage imagenamed:imagename]; 
// 设置左边端盖宽度 
nsinteger leftcapwidth = image.size.width * 0.5; 
// 设置上边端盖高度 
nsinteger topcapheight = image.size.height * 0.5;

return [image stretchableimagewithleftcapwidth:leftcapwidth topcapheight:topcapheight]; 
}