Getting input via lists

I want to display a list (of colours) and when the user chooses one, to open a second screen which will be different according to the colour chosen. I've been told off for trying to use too many screens, so I need to use an if..then..else.. statement but I can't see how to do it using listview. I'm sure it's simple but I just can't see it. Help please!

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Something like this as shown

<img src="http://community.thunkable.com/uploads/default/original/2X/2/2c714b679ec5f3180606d4e04c190dfa89037d57.gif"></img>

http://community.thunkable.com/t/dynamic-chat-app/2519/11?u=pavi2410
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Yes, thanks. But forgive me if I'm being stupid. How do I access the code behind your demo?

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I will share it with you tomorrow.

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