如何在Swift中从UIImagePickerController获取编辑后的图像？

我已经看到并阅读了documents of Apple他们已经清楚地提到了关键的UIImagePickerControllerEditedImage。但是当我运行我的下面的代码时，我没有得到该字典中的密钥。这背后的原因是什么？如何在Swift中从UIImagePickerController获取编辑后的图像？

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) 

    }

的println（信息）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，我从库中选取图像和我的相机也试过，但关键是还没有来，但关于图像的其他数据即将到来。我正在使用iOS8.0构建SDK。

因此，如果字典中没有这样的密钥，我该如何使用UIImagePickerControllerEditedImage。

来源

2014-10-22 Developer

它好像你没有启用图像拾取的'allowEditing'属性，你需要设置' .allowEditing = true“，然后将”UIImagePickerController“呈现给窗口 – deoKasuhal 2015-10-23 00:21:50

你可以这样做。

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

    let image = info[UIImagePickerControllerEditedImage] as UIImage 
}

来源

2014-10-22 08:24:27 sbarow

您正在获取键”UIImagePickerControllerEditedImage“的值，但它没有出现在字典”info“中。这是我面临的问题！ – Developer 2014-10-22 08:58:51

我已经在iOS 7和iOS 8的模拟器上测试了这个功能，并且它在你运行println（“\（info）”时显示'UIImagePickerControllerEditedImage'''我注意到事物的方式有所不同在将'didFinishPickingMediaWithInfo info：[NSObject：AnyObject]'更改为'didFinishPickingMediaWithInfo info：NSDictionary！'时打印？如果您使用上述代码，您会遇到某种错误吗？你使用的是什么版本的Xcode？ – sbarow 2014-10-22 09:07:46

老兄！我在我的问题中也提到了这个响应，我也提到基础SDK是8.0，所以显然我使用xcode 6X。顺便说一句我正在使用XCode 6.1（不是测试版） – Developer 2014-10-22 09:11:10

我找到了问题的原因！它因为属性“allowedEditing”而被设置为false！我已将其更改为true现在它工作正常。

来源

2014-10-22 09:12:37 Developer

SWIFT 3.0：

添加UINavigationControllerDelegate和UIImagePickerControllerDelegate

var imagePicker = UIImagePickerController() 

@IBAction func btnSelectPhotoOnClick(_ sender: UIButton) 
{ 
    let alert = UIAlertController(title: "Choose Image", message: nil, preferredStyle: .actionSheet) 
    alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: { _ in 
     self.openCamera() 
    })) 

    alert.addAction(UIAlertAction(title: "Gallery", style: .default, handler: { _ in 
     self.openGallary() 
    })) 

    alert.addAction(UIAlertAction.init(title: "Cancel", style: .cancel, handler: nil)) 

    imagePicker.delegate = self 
    self.present(alert, animated: true, completion: nil) 
} 
func openCamera() 
{ 
    if(UIImagePickerController .isSourceTypeAvailable(UIImagePickerControllerSourceType.camera)) 
    { 
     imagePicker.sourceType = UIImagePickerControllerSourceType.camera 
     imagePicker.allowsEditing = true 
     self.present(imagePicker, animated: true, completion: nil) 
    } 
    else 
    { 
     let alert = UIAlertController(title: "Warning", message: "You don't have camera", preferredStyle: .alert) 
     alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil)) 
     self.present(alert, animated: true, completion: nil) 
    } 
} 
func openGallary() 
{ 
    imagePicker.sourceType = UIImagePickerControllerSourceType.photoLibrary 
    imagePicker.allowsEditing = true 
    self.present(imagePicker, animated: true, completion: nil) 
} 


func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) { 
    picker.dismiss(animated: true, completion: nil) 
//You will get cropped image here.. 
    if let image = info[UIImagePickerControllerEditedImage] as? UIImage 
    { 
     self.imageView.image = image 
    } 
}

来源

2016-12-05 01:40:55

嗨@Anas你能告诉我怎么用swift选择编辑的视频。我可以使用普通视频，但无法编辑。 – 2016-12-08 13:35:13

如何在Swift中从UIImagePickerController获取编辑后的图像？

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