iphone 保存图片到相册照片库

最新推荐文章于 2025-10-06 11:50:51 发布

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#iphone #照片 #image

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本文介绍如何在iOS应用中使用Objective-C保存UIImage到用户的相册，并提供了保存当前视图区域为图片的方法。通过调用UIImageWriteToSavedPhotosAlbum函数实现图片保存，并附带了错误提示处理。

已知图片保存到相册

UIImageWriteToSavedPhotosAlbum([UIImage imageNamed:photoName], self, @selector(image:didFinishSavingWithError:contextInfo:), nil);

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo

{

UIAlertView *alert;

if (error == nil)

{

alert = [[UIAlertView alloc] initWithTitle:nil message:@"This picture has been saved to your photo album.Picture Saved!" delegate:nilcancelButtonTitle:@"OK." otherButtonTitles:nil];

[alert show];

[alert release];

}

else

{

alert = [[UIAlertView alloc] initWithTitle:nil message:@"Please try it again later.Saving Failed" delegate:nilcancelButtonTitle:@"OK." otherButtonTitles:nil];