I am just starting android development and I plan to use App Inventor to develop a mapping application. I intend to use google chart api to display colorful maps on my Android app. I think I kind of understand how I can generate a url to retrieve a map image via the chart api. However, I don't know how to detect the click on the map. Initially I plan to show the world map with different continents in different colors and when the user zooms in (clicks) on a continent I wanna fetch the image for a country for that continent and display that. I was wondering if there is a way to identify which place the user clicked on the chart and then pass those co-ordinates back to fetch the new chart map image and achieve the zooming in functionality.
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