ios - iOS 7 中的应用程序崩溃

Question

当我在 iPhone 上使用时，应用程序崩溃UIImagePicker了，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

仅在iPhoneUIImagePickerController中以模式呈现。Potratin而且我发现您正在使用的代码中还有picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary一个isCameraDeviceAvailable错误：-

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shouldAutorotate更改为 NO 而不是 YES

Answer 2

在您的 ViewController.m 文件中，在开始 @implementation 之前编写以下代码

@interface NonRotatingUIImagePickerController : UIImagePickerController

@end

@implementation NonRotatingUIImagePickerController

- (BOOL)shouldAutorotate
{
    return NO;
}

@end

在要创建 Image Picker 对象的地方编写以下代码

UIImagePickerController* picker = [[NonRotatingUIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
picker.delegate = self; 
    [self presentModalViewController:picker animated:YES];

Answer 3

好的，如果是这种情况，试试这个......

将此添加到您的 ViewController

- (NSUInteger) supportedInterfaceOrientations
{
     //Because your app is only landscape, your view controller for the view in your
     // popover needs to support only landscape
     return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}