Touchable info (i) button on top of Scroll View

Is there better (framework built in) way to add small "touchable" round info button (i) on top of scroll view? Theoretically I think there should be container view for button(UIControl or UIImag开发者_JS百科eView with png?) and scroll view.

Simply make your information button float above the scroll view by adding it to the scroll view's superview, then ordering the views such that the information button resides on top of the scroll view. You'll retain scrolling capability, while still catching button touches.