存图片和视频到iPhone相册

    UIImage *img = [UIImage imageNamed:@"daziran.jpg"];  
    
    // 保存图片到相册中
    UIImageWriteToSavedPhotosAlbum(img, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);

当保存完成后，调用的回调方法:

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
{
    // Was there an error?
    if (error != NULL)
    {
        // Show error message…
         NSLog(@"Save image failed");
        
    }
    else  // No errors
    {
        // Show message image successfully saved
        NSLog(@"Save image successful");
    }
}

存视频到相册：

    NSString *path=[[NSBundle mainBundle] pathForResource:@"movie" ofType:@"mp4"];

    if(UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(path))
    {
        UISaveVideoAtPathToSavedPhotosAlbum(path,nil,nil,nil);
    }

    else {
        NSLog(@"no available");
        UIAlertView *alert=[[UIAlertView alloc] initWithTitle:nil message:@"no available" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
        [alert show];
        [alert release];
    }