從UIImagePickerControllerReferenceURL訪問分機

如何訪問UIImagePickerControllerReferenceURL的MIME分機部分？這是我所得到的，當我的NSLog - （空）imagePickerController：（*的UIImagePickerController）選擇器didFinishPickingMediaWithInfo：（NSDictionary的*）信息從UIImagePickerControllerReferenceURL訪問分機

UIImagePickerControllerReferenceURL = "assets-library://asset/asset.PNG?id=F61B754A-705C-4BFB-9965-DE34C7B93A2B&ext=PNG";

我只是想訪問的MIME類型。當我發送圖像到我的網絡服務器使用：

NSData *imageData = UIImageJPEGRepresentation(_selectedImage, 1.0); 

//non-important ASIFormDataRequest set-up 
[request setData:imageData withFileName:uniqueString andContentType:@"image/jpeg" forKey:@"photo"];

圖片進來搞亂了。但是，當我使用：

NSData *imageData = UIImagePNGRepresentation(_selectedImage); 

//non-important ASIFormDataRequest set-up 
[request setData:imageData withFileName:uniqueString andContentType:@"image/png" forKey:@"photo"];

圖片進來罰款。但是，我上傳的所有照片不會是PNG。

來源

2012-06-28 John Bowlinger

Dimitris在這個thread上的回答就像一個魅力。我將繼續打字，所以這不會被降級爲一個簡單的答案，然後自動發表評論。

來源

2012-07-01 17:40:47

請嘗試以下代碼從UIImagePickerControllerReferenceURL

NSURL *referenceURL = @"assets-library://asset/asset.PNG?id=F61B754A-705C-4BFB-9965-DE34C7B93A2B&ext=PNG"; //put your reference URL here 
NSString *fileExtension = [referenceURL.absoluteString componentsSeparatedByString:@"ext="][1];

來源

2016-11-03 09:40:50 arunjos007

提取extension要迅速獲取圖像擴展：

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) { 
      if let pickedImage = info[UIImagePickerControllerOriginalImage] as? UIImage { 
       let assetPath = info[UIImagePickerControllerReferenceURL] as! NSURL 
       let ext = assetPath.absoluteString.componentsSeparatedByString("ext=")[1] 
       print(ext) 
     } 
    }

來源

2016-11-16 12:58:35 xevser

從UIImagePickerControllerReferenceURL訪問分機

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