Save image to photo library using photo framework

Question

My app crashes every time when I try to save image using photo framework.

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMedi         


        

Answer 1

1. delete third line of the code
2. Verify that the _mChangeRequest is __block variable
3. compile and run

you will see that image in the photos app

you will change code probably like this...

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

  __block PHAssetChangeRequest *_mChangeRequest = nil;

  [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{

  _mChangeRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:[info valueForKey:UIImagePickerControllerOriginalImage]];

  } completionHandler:^(BOOL success, NSError *error) {

      if (success) {

          PHObjectPlaceholder *assetPlaceholder = _mChangeRequest.placeholderForCreatedAsset;
      }
      else {

         NSLog(@"write error : %@",error);
      }
}];
}