UIImagePickerController与横向定向

Question

我有一个UIImagePicker来点击一张图片并从相册中挑选一张图片。但是我的应用程序必须只支持横向。图片库只能通过ImagePicker以纵向模式打开。我尝试将当前代码与ALAssets集成，但我对AlAssets库一无所知。我想使用图像选择器，并让它调用startMediaBrowserFromViewController:方法中的ALAssets。下面是方法定义。请给我一个解决方案。

//pick an image from photo gallery  

- (BOOL) startMediaBrowserFromViewController: (UIViewController*) controller
                               usingDelegate: (id <UIImagePickerControllerDelegate,
                                               UINavigationControllerDelegate>) delegate {


    if (([UIImagePickerController isSourceTypeAvailable:
          UIImagePickerControllerSourceTypeSavedPhotosAlbum] == NO)
        || (delegate == nil)
        || (controller == nil))
        return NO;
    UIImagePickerController *mediaUI = [[UIImagePickerController alloc] init];
    mediaUI.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    //provides access to photo albums in the device.
    mediaUI.mediaTypes=[[[NSArray alloc]initWithObjects:(NSString*)kUTTypeImage,nil]autorelease];
    // Hides the controls for moving & scaling pictures.
    mediaUI.allowsEditing = NO;   
    mediaUI.delegate = delegate;
    [controller presentModalViewController: mediaUI animated: YES];
    return YES;
}

Answer 1

UIImagePickerController只支持UIInterfaceOrientationPortrait方向，所以从横向视图控制器显示并不重要，它将在纵向显示，甚至在UIInterfaceOrientationPortraitUpsideDown中也不显示

Answer 2

我使用ELCImagePickerController来挑选图片。对我来说，与“普通”的UIImagePickerController相比，它有很多优点。

• 您可以选择多个图像
• 轻松支持横向模式
• easy to customize
• ...

我认为在默认情况下，它不支持横向，但我让它工作得很容易。如果你需要帮助，请留下评论。

在Gituhub上查看