Question

我开发了仅使用拍摄照片的横向模式项目和UIcamera图片控制器，但是当相机启动时它崩溃了并且它将显示以下原因：快照未渲染的视图会导致空快照。确保在屏幕更新后快照或快照之前至少渲染了一次视图。

 if ([UIImagePickerController isSourceTypeAvailable:
         UIImagePickerControllerSourceTypeCamera])
    {
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.delegate = self;
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        imagePicker.mediaTypes = [NSArray arrayWithObjects:(NSString *) kUTTypeImage,nil];
        imagePicker.allowsEditing = NO;


        [self presentModalViewController:imagePicker animated:YES];
//        [self presentViewController:imagePicker animated:NO completion:^{
//                [imagePicker setShowsCameraControls:YES];
//            }];

        }else{
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle: @"No camera available" message: @"Failed to take image" delegate: self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alert show];
    }

Answer 1

试试这位朋友：

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
{

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypeCamera;

    [self presentViewController:picker animated:YES completion:NULL];
}
else
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No camera available" message:@"Failed to take image" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alert show];
}

相机无法在横向模式下工作？

1 个答案: