Does onTouchEvent() has to extends from MapView?

I want to catch any onTouchEvent() on the mapview.

After search lots of questions&answers, I found only when I write my own MapView(MyMapView)and define onTouchEvent, then use this MyMapView in main 开发者_StackOverflowactivity.

Is it the only way??

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It's actually the simplest way. When you extend the MapView there are only a few methods that you need to implement and they are really straight forward.

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You can also use overlays. See this my answer to the question here: How to capture location from MapActivity

Not sure if all touch events will be routed to the overlay's onTouchEvent though.