How to distinguish between network image and file image in flutter?-CodePudding

I'm having a hard time distinguishing between network image and file image.

putImage(image){
    if(image.runtimeType == String){
    // if(image.contains('http')){
      imageInProfile = NetworkImage(image);
      return imageInProfile;
    } else{
      imageInProfile = FileImage(File(image));
      return imageInProfile;
    }
  }

I used 'image.runtimeType == String', however the network image and file image are both string type. Then I tried contains method because most of the network image has 'http' or 'https', but it didn't work and cause error that type '_File' is not a subtype of type 'String'. How can I solve this problem?

CodePudding user response：

To check Valid URL string you just have to use Uri.parse() like below.

bool _validURL = Uri.parse(_adVertData.webLink).isAbsolute;

CodePudding user response：

I believe you will be receiving String URL of it is network image for the other it will be a File.

If yes, you can check file type like,

if(image is String)

This will check type of image object. if it is String, you should check for the url is http url,

Uri.parse(_adVertData.webLink).isAbsolute

This will return true if it is Http url.

Please let me know if this doesn't works for you

Update:

   Widget getImageBasedonType(String image){
    if(image.contains("http://") ||image.contains("https://")){
      return Image.network(image);
    }else{
      return Image.file(File(image));
    }
  }

here, I consider image will be network image or file path not the asset.