创build一个未知types的图像格式是Objective-C Xcode 8错误

从iOS 10 Objective-C和Xcode 8的图像select器中select图像时。 我收到一个错误 –

创build一个未知types的图像格式是一个错误

。

以前的版本可以。

这是我的代码：

 UIImagePickerController* imgPicker=[[UIImagePickerController alloc] init]; imgPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; imgPicker.delegate = self; [self presentViewController:imgPicker animated:YES completion:nil]; 

和委托方法来收回的形象是..

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissViewControllerAnimated:YES completion:NULL]; UIImage *myImage = [info objectForKey:UIImagePickerControllerOriginalImage]; } 

我也试过其他委托function..

  -(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{ } 

但错误不会。

我不确定是Xcode 8的bug吗？
如果有人遇到问题并解决，请帮忙解决。

Answer 1

这是一个错误。 这只是一个虚假的警告。 应用程序的工作没有坏事，所以忽略警告。

Answer 2

我通过苹果文件，并使用此

 UIImage *chosenImage = info[UIImagePickerControllerOriginalImage]; 

在didFinishPickingMediaWithInfo方法中。

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *chosenImage = info[UIImagePickerControllerOriginalImage]; imageViewPreview.image = chosenImage; [picker dismissViewControllerAnimated:YES completion:NULL]; } 

希望这个帮助！

Answer 3

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info { UIImage *tempImage = [info objectForKey:UIImagePickerControllerEditedImage]; UIGraphicsBeginImageContext(tempImage.size); [tempImage drawInRect:CGRectMake(0, 0, tempImage.size.width, tempImage.size.height)]; UIImage *image = [UIImage imageWithCGImage:[UIGraphicsGetImageFromCurrentImageContext() CGImage]]; [self.myimageview setImage:image]; UIGraphicsEndImageContext(); [picker dismissViewControllerAnimated:YES completion:nil]; } 

Answer 4

将UIImagePickerControllerDelegate方法更新为新方法

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info 

从以前的方法：

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

这为我解决了这个问题。 IDE版本：Xcode8.2.1

Answer 5

添加这个。

 imgPicker.allowsEditing = YES; 

Answer 6

我通过在CGContextRef contextvariables中添加以下BitmapInfo参数初始化来解决此问题：

 CGBitmapInfo bitmapInfo = kCGImageAlphaNoneSkipLast; 

而不是CGBitmapInfo bitmapInfo = CGImageGetBitmapInfo(imageRef);

PS：

所以现在我的CGContextRef context如下所示

 CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, CGImageGetBitsPerComponent(imageRef), 0, colorSpace, bitmapInfo); CGColorSpaceRelease(colorSpace);