User interaction with contribution graph

[kajensen]

It would be awesome to have a callback when a user selects a certain date in the contribution graph! A couple ideas: draw the calendar using subviews, or use a collectionview. both would be a major undertaking, though.

[mythodeia]

@kajensen have you found a solution for this.
What i just tried is this:

• I added uibuttons on top of each rect
• used the runtime header to add custom info on each button by using the objc_setAssociatedObject call
• added an optional delegate to get the result back to the main view

it works just fine

check this #11