iOS 截屏方法

//获取屏幕截屏- (UIImage*)getScreenShotsOfView:(UIView *)view{    CGSize size = view.frame.size;    UIGraphicsBeginImageContextWithOptions(size, NO, [UIScreen mainScreen].scale);    CGContextRef context = UIGraphicsGetCurrentContext();    [view.layer renderInContext:context];    UIImage *img = UIGraphicsGetImageFromCurrentImageContext();    UIGraphicsEndImageContext();    return img;}