每次打开相机时都不使用UIImageViewController cameraDevice

Question

我希望我的应用只使用前置摄像头。所以我已经实现了以下代码。

if ([UIImagePickerControllerisCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront]) {
   self.imagePickerController.cameraDevice = UIImagePickerControllerCameraDeviceFront;
}

第一次打开相机时（这是使用前置摄像头）。但如果我取消照片然后重新进入相​​机，则使用后置摄像头。

每次取消/重新进入相​​机时，它会在前后摄像头之间切换......

我有什么遗失的吗？

Answer 1

我遇到了同样的问题并通过在调用中包含autorelease来解决问题，如此处所示分配UIImagePickerController

UIImagePickerController * cameraUI = [[[UIImagePickerController alloc] init] autorelease];

Answer 2

Tr this code .I used this code and it is working fine .Use this code either in button action or viewwillappear or viewdidload and dismiss the camera view properly
    imgPicker =[[UIImagePickerController alloc] init];
    imgPicker.sourceType = UIImagePickerControllerSourceTypeCamera;
    imgPicker.cameraDevice=UIImagePickerControllerCameraDeviceFront;
    imgPicker.showsCameraControls = YES;
    imgPicker.allowsEditing = YES;
    imgPicker.delegate=self;
    [self presentViewController:imgPicker
                       animated:NO completion:nil];