how to replace string in dart

Question

I have predefined url from server and want to replace the string in flutter dart.

For example as follow. I have no idea what is the route it is but I know that if I found ${track_id}, replace with real value. Same for ${artist_id} and ${album_id} and return the real url.

https://thitsarparami.org/artist/${artist_id}/album/${album_id}/track/${track_id} https://thitsarparami.org/${artist_id}/${album_id}/${track_id}

May I know how to replace dynamically.

You could use String.replaceAll to replace all occurrences and String.replaceFirst to replace only the first result. — mkobuolys
– mkobuolys, Commented Apr 4, 2022 at 12:07

Pathik Patel · Accepted Answer · 2022-04-04 12:09:34Z

2

Check below example,

String refineUrl(String url) {

  if(url.contains("${album_id}")) {
    url = url.replaceAll("${album_id}", "<realAlbumId>");
  }
  // repeat the above check for all the dynamic values


  return url;
}

String url = "https://thitsarparami.org/artist/${artist_id}/album/${album_id}/track/${track_id}";

url = refineUrl(url);

Alternatively, you can send the albumId and other values through the function parameter.

answered Apr 4, 2022 at 12:09

Pathik Patel

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