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我是objective-c的新手，并且一直在寻找这个问题的答案......

我正在创建一个照片共享应用程序，我希望相机是全屏的。我使用以下代码隐藏默认的相机覆盖并创建我自己的，并使相机全屏显示。在下一个屏幕上，我想再次全屏显示捕获的图像，但图像横向折叠。

设置相机覆盖：

-(void)loadCamera {
self.imagePicker = [[UIImagePickerController alloc]init];
self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.imagePicker.delegate = self;
self.imagePicker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
self.imagePicker.showsCameraControls = NO;

self.overlayIV = [[WAUCameraOverlayView alloc]initWithFrame:self.imagePicker.cameraOverlayView.frame];

[self.imagePicker.cameraOverlayView addSubview:self.overlayIV];

CGAffineTransform translate = CGAffineTransformMakeTranslation(0.0, 71.0); //This slots the preview exactly in the middle of the screen by moving it down 71 points
self.imagePicker.cameraViewTransform = translate;

CGAffineTransform scale = CGAffineTransformScale(translate, 1.333333, 1.333333);
self.imagePicker.cameraViewTransform = scale;

[self presentViewController:self.imagePicker animated:YES completion:nil];

}

上面的代码效果很好，并且使用我的自定义覆盖使相机全屏显示。然后，这个代码块被执行：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[self.overlayIV removeFromSuperview];
UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

}

我将“图像”传递到下一个屏幕并将其初始化为屏幕大小，但它会被拉伸......有什么方法可以以精确的比例和大小保存/显示从全屏相机捕获的图像？

编辑：我用来显示图像的代码是：

UIImageView *capturedImageView =[[UIImageView alloc]initWithFrame:self.frame];
capturedImageView.image = aImage;
    capturedImageView.contentMode = UIViewContentModeScaleAspectFill;
    [self addSubview:capturedImageView];

我希望图像是屏幕的大小，并且与相机中捕获的比例/纵横比相同

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