相机仅在横向模式下无法工作？答案

【问题标题】：Camera not working in landscape mode only project?相机仅在横向模式下无法工作？
【发布时间】：2015-08-07 06:19:51
【问题描述】：

我已经开发了仅横向模式的项目和使用拍照的 UIcamera 图片控制器，但是当相机启动时它崩溃了，它会显示这个原因：对尚未渲染的视图进行快照会导致空快照。确保在快照或屏幕更新后的快照之前至少渲染一次视图。

 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];
    }

【问题讨论】：

标签： objective-c camera landscape

【解决方案1】：

试试这个朋友：

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];
}

【讨论】：