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

 1 #import <UIKit/UIKit.h>
 2 
 3 @interface SavedToPhotoAlbumViewController : UIViewController {
 4     IBOutlet UIImageView *myImageView;
 5 }
 6 
 7 @property (nonatomic,retain) UIImageView *myImageView;
 8 
 9 -(IBAction) SaveImageToPhotoAlbum:(id)sender;
10 
11 @end
12 
13 SavedToPhotoAlbumViewController.m
14 
15 
16 @synthesize myImageView;
17 
18 -(IBAction) SaveImageToPhotoAlbum:(id)sender{
19     UIImageWriteToSavedPhotosAlbum(myImageView.image, self, @selector(imageSavedToPhotosAlbum: didFinishSavingWithError: contextInfo:), nil);  
20 }
21 
22 - (void)imageSavedToPhotosAlbum:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
23         NSString *message;
24         NSString *title;
25         if (!error) {
26                 title = NSLocalizedString(@"储存成功", @"");
27                 message = NSLocalizedString(@"您的图片已正确的储存至照片数据", @"");
28         } else {
29                 title = NSLocalizedString(@"储存失败", @"");
30                 message = [error description];
31         }
32         UIAlertView *alert = [[UIAlertView alloc] initWithTitle:titlemessage:message delegate:nil
35         cancelButtonTitle:NSLocalizedString(@"好", @"") otherButtonTitles:nil];
37         [alert show];
38         [alert release];
39 }