ios - 不响应选择器图像:didFinishSavingWithError:contextInfo:

Question

谢谢您的阅读，这是我的问题。
我正在尝试保存图片(使用UIImagePickerController方法拍摄的图片)，但是出现错误。错误为“不响应选择器图像:didFinishSavingWithError:contextInfo :)

我在其他地方读过，这与将实例方法更改为类方法有关(但是我是菜鸟，不知道这意味着什么。)这是我的代码:D。

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



// Access the uncropped image from info dictionary
UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];

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

有人告诉我，这与UIImageWriteToSavedPhotosAlbum方法中的“Self”有关。

Answer 1

使用此代码保存您选择的图像:

 -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{
 UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
 UIImageWriteToSavedPhotosAlbum(image,self,  
                                   @selector(image:finishedSavingWithError:contextInfo:),
                                   nil);
}

并添加此功能。

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo: (void *)contextInfo
{
if (error != nil) 
 {
    NSLog(@"Image Can not be saved");
 } 
 else 
 {
    NSLog(@"Successfully saved Image");
 }
}