Question

此代码用于从相机逐个捕获图像，但在下次拍摄一张图像后相机将打开但是黑屏（像它，s快门关闭）。所有其他ios版本的工作，但不适用于ios 8请告诉我怎样才能解决它？

-(void)openCamera
 {
   if(![PickerHandler doesDeviceSupportMediaType:ITEM_TYPE_PHOTO])
   {
    [PickerHandler showNoDeviceSupportWarningForMediaType:ITEM_TYPE_PHOTO withDelegate:self];
   }
   else 
   {
    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;

    picker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeImage];
    [self presentViewController:picker animated:YES completion:nil];
   }

 }

Answer 1

转到设置＆gt;隐私＆gt;图片 ...并检查您的应用是否有权限。

在代码中，使用此功能验证相机访问权限。

- (BOOL)authorizedCameraAccess
{
    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    return  (status == AVAuthorizationStatusAuthorized);
}

Answer 2

此代码在模拟器中不起作用。

UIImagePickerController *videoScreen = [[UIImagePickerController alloc] init];
    videoScreen.sourceType = UIImagePickerControllerSourceTypeCamera;

    videoScreen.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];

    videoScreen.allowsEditing = NO;
    videoScreen.delegate = self;

    [self presentViewController:videoScreen animated: YES completion:NO];

Answer 3

实施此方法

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
 [self dismissViewControllerAnimated:NO completion:NO];
}

相机在ios 8中显示黑屏

3 个答案: