Flutter url_launcher ignores number sign(#) when call

Question

I'm using url_launcher in my app. When I dial numbers that includes a number sign like "*123#" it ignores the number sign and dial just *123

Answer 1

You should use Uri.encodeComponent to encode # too

onPressed: () {
        String no = Uri.encodeComponent('*123#');
        launch('tel:$no');
      },

Answer 2

You must use Uri.encodeComponent to encode # your string

onPressed: () {
        String mycode = Uri.encodeComponent('*#06#');
        launch('tel:$mycode');
      },

Because special characters need to be encoded to be able to use by your device