IOS Google Maps Info Marker with Button

I am an iOS developer, I am working on Google Maps and I need to add a Button in Info Marker and its appear, but my problem that I cant handle The button because it call the function didTapInfoWindowOfMarker.

But I need to handle the button Not the delegate function, So please tell me what I need to do?

I try to put the button on change camera, but I did not love it so Please I need the Info Marker