UIImage+Expansion.h文件
/**
* 屏幕截图
*
* @param view 需要截的view
*
*/
+ (instancetype)captureWithView:(UIView *)view;
UIImage+Expansion.m文件
#pragma mark - 屏幕截图
+ (instancetype)captureWithView:(UIView *)view
{
// 1.开启上下文
UIGraphicsBeginImageContextWithOptions(view.frame.size, NO, 0);
// 2.将控制器view的layer渲染到上下文
[view.layer renderInContext:UIGraphicsGetCurrentContext()];
// 3.取出图片
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
// 4.结束上下文
UIGraphicsEndImageContext();
return newImage;
}
