I liked this library as we can easily track the marker on screen.
I require a little help regarding the appearance of the Marker on screen. I want to write a code like, when the marker will be appeared on the screen, one bull variable will show "true" and when the marker will be disappeared from the screen, the
variable will show "false".
I've tried to figure out this issue but I can't.
Please help me regarding this..
Thanking you all with warm Regards..