UIImagePickerController预览图像向下移动

Question

我知道几年前有关于此主题的问题，但我认为他们的解决方案已过时和/或我无法让他们工作。我尝试了所有info.plist更改等。

我正在使用UIImagePickerController。拍摄照片后，预览图像（带有“重拍”和“使用照片选项”）将跳下约20个像素。它好像占据了mediaTypes工具栏区域。

有关如何防止图像转移的任何建议？下面是相关的代码（很基本的）

- (IBAction)takePhoto:(UIButton *)sender { 
    UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 
    picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
    [picker prefersStatusBarHidden]; 
    [self presentViewController:picker animated:YES completion:NULL]; 
} 

- (BOOL)prefersStatusBarHidden { 
    return YES; 
} 

Answer 1

尝试了不少配置的东西，没有工作后，我参加了一个简单的方法，迫使摄像机视图下由相同数量的像素，预览图像是利用变换转移，即

picker.cameraViewTransform = CGAffineTransformTranslate(picker.cameraViewTransform, 0.0, 30.0); 

整方法：

- (IBAction)takePhoto:(UIButton *)sender { 

    UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.delegate = self; 
    picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
    picker.cameraDevice = UIImagePickerControllerCameraDeviceFront; 

    picker.cameraViewTransform = CGAffineTransformTranslate(picker.cameraViewTransform, 0.0, 30.0); 

    [self presentViewController:picker animated:YES completion:NULL]; 
}