[从相机切换到视频时，UIImagePickerController崩溃

Question

切换到视频捕获模式后，在装有iOS 13（真实设备）的iPhone上，UIImagePickerController发生崩溃。崩溃重现UIImagePickerControlle r的第二次显示。在iOS 13（真实设备）之前的版本中不会崩溃。在使用Xcode 11.0构建的Info.plist测试应用中设置了相机和麦克风的使用描述键。

步骤：

1. 当前UIImagePickerController
2. 关闭UIImagePickerController
3. 当前UIImagePickerController
4. 点击视频按钮->崩溃

如果设置videoQuality = UIImagePickerControllerQualityTypeHigh，则不会重现崩溃。但我需要UIImagePickerControllerQualityTypeMedium。

@interface ViewController () < UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@end

@implementation ViewController

#pragma mark - IBActions

- (IBAction)showPicker:(UIButton *)sender {
    UIImagePickerController *pickerController = [UIImagePickerController new];
    pickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
    pickerController.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
//    pickerController.videoQuality = UIImagePickerControllerQualityTypeHigh;
    pickerController.delegate = self;

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

#pragma mark - UIImagePickerControllerDelegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<UIImagePickerControllerInfoKey, id> *)info {
    [self dismissViewControllerAnimated:YES completion:NULL];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [self dismissViewControllerAnimated:YES completion:NULL];
}

@end
'NSInvalidArgumentException'，原因：'***-[AVCaptureDevicesetActiveColorSpace：]不支持-使用activeFormat.supportedColorSpaces'

切换到视频捕获模式后，在具有iOS 13（真实设备）的iPhone上，UIImagePickerController崩溃。崩溃在UIImagePickerController的第二次演示中重现。崩溃...

Answer 1

在pickercontroller中设置视频质量