如何使用当前位置信息显示Mapbox注释

I was wondering if anyone may know how to make Mapbox annotations be able show the current location information once dropped on a certain spot. Kind of like it does in Apple's maps when you tap on a pin or drop one and it then shows the locations name or address. I have the code for the pin being dropped but after that I don't know how to make it show information on that current location. Thank you for your feedback in advance.I was wondering if anyone may know how to make