- (void)saveImage
{
int index = _scrollView.contentOffset.x / _scrollView.bounds.size.width;
UIImageView *currentImageView = _scrollView.subviews[index];
UIImageWriteToSavedPhotosAlbum(currentImageView.image, self, @selector(image:didFinishSavingWithError:contextInfo:), NULL);
UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] init];
indicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
indicator.center = self.center;
_indicatorView = indicator;
[[UIApplication sharedApplication].keyWindow addSubview:indicator];
[indicator startAnimating];
}
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo;
{
[_indicatorView removeFromSuperview];
UILabel *label = [[UILabel alloc] init];
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor colorWithRed:0.1f green:0.1f blue:0.1f alpha:0.90f];
label.layer.cornerRadius = 5;
label.clipsToBounds = YES;
label.bounds = CGRectMake(0, 0, 150, 30);
label.center = self.center;
label.textAlignment = NSTextAlignmentCenter;
label.font = [UIFont boldSystemFontOfSize:17];
[[UIApplication sharedApplication].keyWindow addSubview:label];
[[UIApplication sharedApplication].keyWindow bringSubviewToFront:label];
if (error) {
label.text = SDPhotoBrowserSaveImageFailText;
} else {
label.text = SDPhotoBrowserSaveImageSuccessText;
}
[label performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:1.0];
}
保存图片
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