Android: Create a URL using Uri.Builder().build() with port numbers

Uri.Builder.build() works quite well with normal URLs, but it fails with port number support.

The easiest way that I discovered to make it support port numbers was to make it parse a given URL first then work with it.

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01.Uri.Builder b = Uri.parse("http://www.yoursite.com:12345").buildUpon();

02. 

03.b.path("/path/to/something/");

04.b.appendQueryParameter("arg1", String.valueOf(42));

05. 

06.if (username != "") {

07.  b.appendQueryParameter("username", username);

08.}

09. 

10.String url = b.build().toString();

And there you have it, a customisable URL with support for port number and queries.