Tap issues

[robertocarroll]

• Sometimes, I could not click on the answers in the game. They just wouldn't click, I am not sure if this is to do with the app or with my phone.
• In the "Connect" section, I also had to click many times on some of the contributors' photos for them to "click", and then once I've viewed a person, sometimes it wouldn't click to go back. So I had to quit and restart the app. Again, I am not sure if this is my phone or the app, but it has never really happened to my phone before.

[robertocarroll]

I've increased the TAP_THRESHOLD to 500 to account for a lingering tap. If that doesn't fix it, I will have to go back to native Tap_end event (which I got rid of because of the feedback about accidentally tapping the questions and the posts while scrolling.)

See also: https://github.com/GianlucaGuarini/Tocca.js/issues/11

[robertocarroll]

So Tocca didn't seem to work very well. The latest version is using a custom bit of code:

• it listens to touchstart and touchmove.
• on touchstart it adds an event listener for touch end to do the event, ie answer question, load post, etc
• if touchmove goes further than 10px (recommended by guidelines) up or down, it removes the touchend event listener so nothing happens other than scrolling the page.
• if touchmove goes less than 10px up or down, the event listener stays and the touch event takes place.
• then I remove the touchend listener so it can all happen again, eg after a wrong answer.

If this isn't satisfactory, we will have to just go with touchend I think or get another opinion from somewhere.