Create dynamic url android

Question

Ok so I'm trying to add 100+ buttons to a listview via CustomAdapter and each button should open a different url. Say my starting url is www.example.com/hi/01.htm and my last url is www.example.com/hi/136.htm . My CustomAdapter moves down the list with the int position. So im thinking it should be something like this:

 URL url = new URL("www.example.com/hi/", position);

But it doesn't work, plus the htm tag at the end wouldn't appear. Ive searched on google and found lots of things like URi and retrofit but I can't seem to understand how they might work with my specific needs. Any help/tips/advice would be highly apreciated!

Malik · Accepted Answer · 2017-04-03 20:24:48Z

2

Try android.net.Uri instead of URl like this

Uri uri = Uri.parse("www.example.com/hi/" + pos + ".htm");

Greets

answered Apr 3, 2017 at 20:24

Malik

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Eddie Martinez · Accepted Answer · 2017-04-03 20:39:13Z

1

Use String.format() to add the variable to the string. In the following example, the %s will get replaced with the position variable.

URL url = new URL(String.format("http://www.example.com/hi/%s.htm", position));

Note

You were getting MalformedURLException because your example url does not specify the protocol.

From the documentation:

Throws: MalformedURLException - if no protocol is specified, or an unknown protocol is found, or spec is null.

edited Apr 3, 2017 at 20:39

answered Apr 3, 2017 at 20:26

Eddie Martinez

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2 Comments

David Garcia Ballester Over a year ago

I get malformed URL exception

Eddie Martinez Over a year ago

@DavidGarciaBallester try now.

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