Bug Odd behavior on Mobile

[dvsDave]

Several of my users who help me test new features before we roll them out live have been playing with the Sketch function and they are all reporting odd behavior on mobile. If you draw a line, it looks fine. But, if you lift your finger and then put your finger down again to draw a second line, the first line disappears! The only way we've found it to work is if you use two fingers, but it's tempermental even then. I've tested this on Chrome on Android and several other users have tested this on iPad's and iPhones.

This only seems to be an issue on touch devices, works fine when I use my mouse on my desktop. Haven't yet tried it with a touchscreen windows laptop though.

 

[Clement]

I am using a specific js to perform this, could you tell me if you have the same issue there:
http://intridea.github.io/sketch.js/

 

[dvsDave]

Yup, the bug happens on their demo page as well.

 

[Clement]

Hum, then it might be hard to fix as I am not the author of the script.

I will try to find out why though but can't promise.
Was it on all mobiles or a specific one ?

 

[dvsDave]

It was across androids and iPhones/iPads.

 

[dvsDave]

Since it's based on sketch.js, I've been looking for a multi touch implementation of the code.

 

[Clement]

I'll have to give it a try and perhaps find another third party script.

But in any case, this one was nice as it allows getting the data as data/... which allows attachments to be created.

I'll be looking into that for sure but can't promise if in september or october.

 

[dvsDave]

I think I've found a suitable replacement. http://literallycanvas.com/ The GUI works great on mobile devices, adds some great features (including custom shapes, something I really want) and it looks like an easy image export function.

 

[Clement]

Not sure if the export output would be suitable.

But that's something to investigate.