问带有用户照片的相机覆盖-没有保存为编辑
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Stack Overflow用户

提问于 2011-08-16 00:51:07

回答 1查看 2.1K关注 0票数 21

我使用带有的透明图像，为用户插入/获取自己的图像，将裁剪出来。由于某些原因，在使用UIImagePickerControllerEditedImage并裁剪用户拍摄的照片时，图像不会在编辑时保存；例如，请参阅照片。

我的问题是，图像并没有保存照片的编辑方式。(即:裁剪/调整尺寸)。

设置UIImagePicker

-(void)choosePhotoDialog:(id)sender
{        
    OverlayView * overlay = [[OverlayView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH_IPHONE, SCREEN_HEIGTH_IPHONE) andPhoto:[dict objectForKey:@"imageUrl"]];
    [overlay setUserInteractionEnabled: NO];

    UIImagePickerController * picker = [[UIImagePickerController alloc] init];
    [picker setSourceType: UIImagePickerControllerSourceTypeCamera];
    [picker setDelegate: self];
    [picker setAllowsImageEditing: YES];
    [picker setShowsCameraControls: YES];
    [picker setNavigationBarHidden: YES];
    [picker setWantsFullScreenLayout: YES];
    [picker setCameraOverlayView: overlay];
    [self presentModalViewController:picker animated:YES];  
    [picker release];
}

编辑图像后：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    SDWebImageManager * manager = [SDWebImageManager sharedManager];
    UIImage * cachedImage  = [manager imageWithURL: [NSURL URLWithString: @"http://www.someurl.com/test.png"]];
    UIImage * userOriginal = [info valueForKey:UIImagePickerControllerEditedImage];

    /*  combining the overlay and the user-photo  */
    UIGraphicsBeginImageContext( CGSizeMake(640,960) );

        /*  for some reason I have to push the user-photo
            down 60 pixels for it to show correctly as it
            was edited.
         */
        [userOriginal drawAtPoint:CGPointMake(0,60)];
        [cachedImage drawAtPoint:CGPointMake(0,0)];

        UIImage * draft = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    UIImageWriteToSavedPhotosAlbum( draft, self, @selector(image:didFinishSavingWithError:contextInfo:), nil );       
}

此外，编辑“裁剪”部分中还有白色空格，如下所示：