iphone把图片保存到“照片”功能实现

照片, 功能, 保存

如何将指定的图片储存至系统的「照片」数据内，并检查储存动作是否成功

 程序提供加载预设的图片并提供一组UIButton按钮

 按下储存图片将检查此动作是否成功

SavedToPhotoAlbumViewController.h

#import <UIKit/UIKit.h>

@interface SavedToPhotoAlbumViewController : UIViewController {
    IBOutlet UIImageView *myImageView;
}

@property (nonatomic,retain) UIImageView *myImageView;

-(IBAction) SaveImageToPhotoAlbum:(id)sender;

@end

SavedToPhotoAlbumViewController.m


@synthesize myImageView;

-(IBAction) SaveImageToPhotoAlbum:(id)sender{
    UIImageWriteToSavedPhotosAlbum(myImageView.image, self, @selector(imageSavedToPhotosAlbum: didFinishSavingWithError: contextInfo:), nil);  
}

- (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
        NSString *message;
        NSString *title;
        if (!error) {
                title = NSLocalizedString(@"储存成功", @"");
                message = NSLocalizedString(@"您的图片已正确的储存至照片数据", @"");
        } else {
                title = NSLocalizedString(@"储存失败", @"");
                message = [error description];
        }
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:titlemessage:message delegate:nil
        cancelButtonTitle:NSLocalizedString(@"好", @"") otherButtonTitles:nil];
        [alert show];
        [alert release];
}