Android Question Plotting lines on canvas with a Sprite Overlay


Active Member
Licensed User
Longtime User
I've had a brief look at many of the graph/chart/plotting libraries but I dont see anythig that allows me to move an image over the view.
I want to be able to touch the chart ( preferably showing some sort of slider) and this will change the data shown on the map.
Here is an example of what I'm trying to emulate.(29 seconds)(except that under the users finger will be some sort of indicator that moves with the finger)
I also hope to do this in B4i.
Can anyone advise a library or tell me what components I can use that will allow me to draw lines whilst overlaying a slider that will raise events on movement.


B4X founder
Staff member
Licensed User
Longtime User
Upvote 0