如何从Swift中的UIImagePickerController获取编辑过的图像？

我已经看过并阅读了 documents of Apple,他们已经明确提到了密钥 UIImagePickerControllerEditedImage.但是当我运行以下代码时,我没有在字典中获得该密钥.这背后的原因是什么？

我的代码：

func imagePickerController(picker: UIImagePickerController!,didFinishPickingMediawithInfo info:NSDictionary!)
    {
        println(info)

        //var tempImage:UIImage = info[UIImagePickerControllerOriginalImage] as UIImage
        var tempImage:UIImage? = info[UIImagePickerControllerEditedImage] as? UIImage

        profileButton.setimage(tempImage,forState: UIControlState(0))

        self.dismissViewControllerAnimated(true,completion:nil)

    }

println(info)打印：

{
    UIImagePickerControllerMediaType = "public.image";
    UIImagePickerControllerOriginalImage = "<UIImage: 0x178295d60> size {960,960} orientation 0 scale 1.000000";
    UIImagePickerControllerReferenceURL = "assets-library://asset/asset.JPG?id=2DDCE06B-6082-4167-A631-B3DF627055DF&ext=JPG";
}

仅供参考,我正在从图书馆中挑选图像,我也尝试使用相机,但这个密钥仍未出现,但有关图像的其他数据即将到来.我正在使用iOS8.0构建SDK.

那么我如何使用UIImagePickerControllerEditedImage如果词典中没有这样的键.

解决方法

你可以这样做.

func imagePickerController(picker: UIImagePickerController,didFinishPickingMediawithInfo info: [NSObject : AnyObject]) {

    let image = info[UIImagePickerControllerEditedImage] as UIImage
}