How to create text fading effect when user swipes across tabs using PageIndicator
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What's the minimum amount of effort required to change Jake Wharton's **TitlePagerIndicator** 
into one that produces the text fading effect you see on Google Play Store as you swipe 
between tabs? I think the key lies in modifying _onDraw()_ but that requires me figuring out his code and his math. If there's an easier solution I'd prefer that.

I also tried **TitlePagerIndicator.setFadingEdgeLength(100)**, but doesn't seem to do anything
I am aware you have to do **TitlePagerIndicator.setHorizontalFadingEdgeEnabled(true)** but 
still no fading effect whatsoever.