如下的方法,很是简单的实现截取整个scrollView控件及其子控件的内容,好比tableView等,并生成一张图片。不单单是咱们能够看到的一屏大小的内容。web
- (UIImage *)screenShotImageOfScrollView:(UIScrollView *)scrollView
{
UIImage* image = nil;
//获取图片 UIGraphicsBeginImageContextWithOptions(scrollView.contentSize, NO, 0.0);
{
CGPoint savedContentOffset = scrollView.contentOffset;
CGRect savedFrame = scrollView.frame;
scrollView.contentOffset = CGPointZero;
scrollView.frame = CGRectMake(0, 0, scrollView.contentSize.width, scrollView.contentSize.height);
[scrollView.layer renderInContext: UIGraphicsGetCurrentContext()];
image = UIGraphicsGetImageFromCurrentImageContext();
scrollView.contentOffset = savedContentOffset;
scrollView.frame = savedFrame;
}
UIGraphicsEndImageContext();
//存储图片
//设置图片的存储路径
NSString *pathDocument = NSHomeDirectory();
NSString *imagePath = [path_document stringByAppendingString:@"/Documents/abc.png"];
[UIImagePNGRepresentation(image) writeToFile:imagePath atomically:YES];
// 将存储的图片再取出来,而后上传
NSString * path = imagePath;
// 二进制的数据就能够进行上传
NSData * data = [NSData dataWithContentsOfFile:path];
getImage = [UIImage imageWithData:data];
if (image != nil) {
return image;
}
return nil;
}