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plurals

POwriteImageToSavedPhotosAlbum:metadata:completionBlock:
primarykey
Id
6854453
data
AcceptedAnswerId
0
AnswerCount
2
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2011-07-28T05:24:15.790
FavoriteCount
0
LastActivityDate
2014-04-15T10:41:48.577
LastEditDate
2014-04-15T10:41:48.577
LastEditorUserId
562154
OwnerUserId
805983
ParentId
0
PostTypeId
1
Score
0
ViewCount
3878
LastEditorDisplayName
text
Body
I use the method writeImageToSavedPhotosAlbum:metadata:completionBlock: save taken picture to photo album,code is: <pre><code>-(void)savePhotoToAlbum{ CGImageRef imageRef=[imageView image].CGImage; NSDictionary *currentDic=[self getLocation]; NSDictionary *metadata=[NSDictionary dictionaryWithDictionary:currentDic]; ALAssetsLibrary *library=[[ALAssetsLibrary alloc] init]; [library writeImageToSavedPhotosAlbum:imageRef metadata:metadata completionBlock:^(NSURL *assetURL,NSError *error){ if(error == nil) { UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:nil message:@"Save success!" delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil]; [alertView show]; [alertView release]; } else { UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:nil message:@"Save failure!" delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil]; [alertView show]; [alertView release]; } }]; [library release]; </code></pre> } .The method getLocation that is get user's current location!That can save success!Then I want to pick taken picture from photo album use UIImagePickerController! Code is : <pre><code>- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { if([picker sourceType]==UIImagePickerControllerSourceTypeSavedPhotosAlbum)//picker image delegate { NSString *mediaType=[info objectForKey:UIImagePickerControllerMediaType]; if([mediaType isEqualToString:@"public.image"]) { NSDictionary *metadata=[info objectForKey:UIImagePickerControllerMediaMetadata]; NSLog(@"%@",metadata); } } } </code></pre> Then log the metadata is null.That's why? And how do I get the metadata info which I saved?Thanks!
Tags
<iphone><objective-c><alassetslibrary>
Title
writeImageToSavedPhotosAlbum:metadata:completionBlock:
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USXiao
UserOwnerUserId
1. USscofield
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PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
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1. PO
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2. PO
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1. VO
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 POwriteImageToSavedPhotosAlbum:metadata:completionBlock:
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CommentsPostId
1. This table or related slice is empty.

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