Question

我无法纠正此错误。

let vc = BSImagePickerViewController() self.bs_presentImagePickerController( vc , animated: true, select: {(asset: PHAsset) -> Void in },deselect: {(asset: PHAsset) -> Void in }, cancel: {(assets: PHAsset)-> Void in}, finish: { (assets: PHAsset) -> Void in for i in 0..

    func convertAssetsToImage() -> Void {
        if selectedAssests.count != 0 {
            for i in 0..<selectedAssests.count{
                let manager = PHImageManager.default()
                let option = PHImageRequestOptions()
                var thumbnail = UIImage()
                manager.requestImage(for: selectedAssests[i], targetSize: CGSize(width:200 , height : 200), contentMode: .aspectFill, options: option, resultHandler:{(result, info) -> Void in thumbnail = result!
                })

                let data = UIImageJPEGRepresentation(thumbnail, 0.7)
                let newImage = UIImage(data: data!)
                self.imageArray.append(newImage! as UIImage)
            }

            self.extImageOne.animationImages = self.imageArray
            self.extImageOne.animationDuration = 3.0
            self.extImageOne.startAnimating()
        }

    }
}

Answer 1

您已声明您的闭包采用PHAsset类型的单个对象，但您使用的API希望您的闭包采用PHAsset数组。重写你的闭包以取[PHAsset]而不是PHAsset，你应该解决你的问题。

编辑：

我用Google搜索BSImagePickerViewController类，找到了您尝试使用的API的签名。它看起来像：

func bs_presentImagePickerController(_ imagePicker: BSImagePickerViewController, animated: Bool, select: ((_ asset: PHAsset) -> Void)?, deselect: ((_ asset: PHAsset) -> Void)?, cancel: (([PHAsset]) -> Void)?, finish: (([PHAsset]) -> Void)?, completion: (() -> Void)?)

正如您所看到的，select:和deselect:关闭只占用一个PHAsset，因此请将这两个关闭保留在上面的代码中。 cancel:和finish:关闭都需要重写才能取代[PHAsset]。

无法转换类型＆＃39;（PHAsset）的值 - ＆gt;虚空＆＃39;预期参数类型＆＃39;（（[PHAsset]） - ＆gt; Void）？＆＃39;

1 个答案: