iOS——截屏

+(UIImage *)snapshot:(UIView *)view

{

    UIGraphicsBeginImageContextWithOptions(view.bounds.size,YES,0);

    

    [view drawViewHierarchyInRect:view.bounds afterScreenUpdates:YES];

    

    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

    

    UIGraphicsEndImageContext();

    

    return image;

}