Spurious screen touch events on android

:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By agodotuser
:warning: Old Version Published before Godot 3 was released.

I’m trying to implement a virtual joypad on Android. I found a nice example here

https://forum.godotengine.org/360/omni-directional-touch-pad?show=375#a375

my problem is and I’ve tried this on 3 different phones, is that after a while (could be a few seconds or several minutes) I start getting phantom touch up and touch down events making the joypad really horrible to use.

i created a little test program which shows the number of touch down/up events I get

https://drive.google.com/open?id=1VJOpC_bGoKon0hbeZjdcKl7LDIij_8T2

if you rub your thumbs in the blue areas for a while (up to 6/7 minutes) you may see what I’m seeing which is the touch up/down numbers rising even though my thumbs are still on the screen.

I’ve tested this on Godot 3 RC3 and see the same issue

my question is, is this a bug or just my crappy phones ?