I&#39;m developing an Android app. I need to build a URI for my app to make an API request. Unless there&#39;s another way to put a variable in a URI, this is the easiest way I&#39;ve found. I found that you need to use `Uri.Builder `, but I&#39;m not quite sure how to. My url is:

    http://lapi.transitchicago.com/api/1.0/ttarrivals.aspx?key=[redacted]&amp;mapid=value 

My scheme is http, authority is `lapi.transitchicago.com`, path is `/api/1.0`, path segment(s) is `ttarrivals.aspx`, and query string is `key=[redacted]&amp;mapid=value`. 

My code is below:

    Intent intent = getIntent();
    String value = intent.getExtras().getString(&quot;value&quot;);
    Uri.Builder builder = new Uri.Builder();
    builder.scheme(&quot;http&quot;)
        .authority(&quot;www.lapi.transitchicago.com&quot;)
        .appendPath(&quot;api&quot;)
        .appendPath(&quot;1.0&quot;)
        .appendPath(&quot;ttarrivals.aspx&quot;)
        .appendQueryParameter(&quot;key&quot;, &quot;[redacted]&quot;)
        .appendQueryParameter(&quot;mapid&quot;, value);

I understand that I can do `URI.add`, but how do I integrate it into the `Uri.Builder `? Should I add everything like `URI.add(scheme)`, `URI.add(authority)` and so on? Or is that not the way to do it? Also, is there any other easier way to add a variable to a URI/URL?

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Use URI builder in Android or create URL with variables