Question

我正在使用第三方库BSImagePicker从图库中选择多个图像。我想在数组中获取这些选定图像的路径，并且我想在新的UIViewController中显示所有选定的图像。我尝试过很多东西，但没有运气。

Answer 1

嗯，关于github上的文档： https://github.com/mikaoj/BSImagePicker

您确实获得了资产的选择事件

let vc = BSImagePickerViewController()

bs_presentImagePickerController(vc, animated: true,
    select: { (asset: PHAsset) -> Void in
      // User selected an asset.
      // Do something with it, start upload perhaps?
    }, deselect: { (asset: PHAsset) -> Void in
      // User deselected an assets.
      // Do something, cancel upload?
    }, cancel: { (assets: [PHAsset]) -> Void in
      // User cancelled. And this where the assets currently selected.
    }, finish: { (assets: [PHAsset]) -> Void in
      // User finished with these assets
}, completion: nil)

非常重要的是要理解，照片库现在不再向图像返回URL，就像使用ALAssetLibrary一样。现在，您将获得对PHAsset项的引用。这个可能包含多个图像（例如LivePhoto视频和相关的预览图像）。

因此，您可以将所有PHAsset存储在数组中，甚至可以访问图像并存储图像。（我建议坚持使用PHAsset方法，因为图像可能会炸毁你的内部ram）。

如果您想要显示图像，请在延迟加载方法中使用它：

let options = PHImageRequestOptions()
options.deliveryMode = .HighQualityFormat
options.synchronous = true // Set it to false for async callback

let imageManager = PHCachingImageManager()
imageManager.requestImageForAsset(<!#assetfromaboce#!>,
                                  targetSize: CGSizeMake(CGFloat(100), CGFloat(100)),
                                  contentMode: .AspectFill,
                                  options: options,
                                  resultHandler: { (resultThumbnail : UIImage?, info : [NSObject : AnyObject]?) in

                                                   // Assign your thumbnail which is the *resultThumbnail*
                                                  }

Answer 2

请检查其github存储库上的示例。
我在他们的github上找到的一个片段：

bs_presentImagePickerController(vc, animated: true,
    select: { (asset: PHAsset) -> Void in
        print("Selected: \(asset)")
    }, deselect: { (asset: PHAsset) -> Void in
        print("Deselected: \(asset)")
    }, cancel: { (assets: [PHAsset]) -> Void in
        print("Cancel: \(assets)")
    }, finish: { (assets: [PHAsset]) -> Void in
        print("Finish: \(assets)")
    }, completion: nil)

如何从图库中获取多个选定图像的路径？

2 个答案: