ios - iOS 7 中的应用程序崩溃

Question

当我在 iPhone 上使用 UIImagePicker 时应用程序崩溃，但仅在 iOS 7 上。 我使用以下代码行

    picker = [[UIImagePickerController alloc] init];

    picker.delegate = self;
    picker.allowsEditing = YES;

    if( [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront] || [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear])
    {
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    } else {
        //[self showAlertViewWithTitle:@"Sorry" message:@"Your Device Don't Have Camera"];
    }

    [self presentViewController:picker animated:YES completion:nil];

}

该应用程序在 iOS 6 上运行，而不是在 iOS 7 上运行。 我是这个网站的新手，请帮忙。

Answer 1

UIImagePickerController 仅在 iPhone 中以 Potratin 模式呈现。我在您的代码中发现了一个错误，您正在使用 picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary 而 isCameraDeviceAvailable 是错误的:-

你应该这样编码:-

if( [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront] || [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear])
    {
       picker.sourceType = UIImagePickerControllerSourceTypeCamera;
                 [self presentViewController:picker animated:YES completion:nil];
    } else {
         picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
                 [self presentViewController:picker animated:YES completion:nil];       
    }

并在您的 ViewController 中将 shouldAutorotate 更改为 NO 而不是 YES