Skip to main content
P
PlayTales
Participant
September 26, 2013
Question

Multitouch performance problems on Intel's Lenovo all-in-one systems

  • September 26, 2013
  • 2 replies
  • 2695 views

Hello,

We have experienced some issues during the development process of the AIR desktop multitouch applications for Lenovo's IdeaCentre Desktop systems (specifically the "IdeaCentre A730 Desktop"):

http://shop.lenovo.com/us/en/desktops/ideacentre/a-series/a730/#techspecs

When you touch the screen with only one finger everything functions correctly, but when you touch it at the same time with another finger, a square appears where the first finger is touching. It seems this square is related to the right-click function in the touch screen (in the Windows Explorer, you can long-press the screen with your finger and a little square will appear, showing you that this pressing will be performed as if you have clicked with the right button of the mouse), but we have made sure that the right click is disabled in all ways and it's still happening.

We are also experiencing significant performance problems while this square is showing, also when we touch the application with many fingers (IdeaCentre supports up to 11 touches), and long-pressing the screen with one finger while touching with the others. Here we have uploaded a video where you can see what's happening:

http://temporal.iphone.s3.amazonaws.com/MultitouchErrorVideo.MOV

We have followed all the steps to properly configure the application to accept multitouch specified at the Adobe Flash Platform (The Multitouch class inputMode property must be set to "touch point", as we need to identify to touch ID with the event's touchPointID value - Multitouch.inputMode = MultitouchInputMode.TOUCH_POINT;): http://help.adobe.com/en_US/as3/dev/WSb2ba3b1aad8a27b0-6ffb37601221e58cc29-8000.html

Any help or suggestions you can provide would be very much appreciated.

Best regards,

The PlayTales team.

This topic has been closed for replies.

2 replies

R
RichGarner71
Participant
November 12, 2013

The version downgrade is not a solution. Our clients are not tech savy enough to control their software version and there's too many units for us to manually configure.

Our models are Win 8 Lenovo Ideapad's (Yoga 13) running AIR 3.8. But tested with 3.9 gave same results. Our only concern is advancedDataGrids that need to be scrolled. These models claim to support gesturePan, but never trigger it under any circumstances.

Client is requested touch-enabled scrolling and so far our ONLY solution is a skinned vertical scroll bar that allows user to more easily tap scroll up an scroll down.

chris.campbell
chris.campbell
Legend
November 12, 2013

Unfortunately, this fix didn't make it in time for today's release.  However, we believe we've made progress and I was hoping those effected in this thread can take a minute and try out this private test build:

https://sendnow.acrobat.com/?i=RkCG4nKi6k3lcJm6UMDL7A

If this looks good, it should be available in our next beta which will happen either this week or next.  Please let us know how it works out for you.

Thanks,

Chris

A
Anonymous
December 4, 2013

Hi,

I can confirm that i can scroll my list with this private release.

But I download the latest air 3.9 official release, 3.9.0.1210, and it does not work.

Do you have a release date ?

Thx.

P
PlayTalesAuthor
Participant
October 9, 2013

Ok, it seems that the performance problems and freezing issues have been fixed in the new version of the Adobe AIR SDK (3.9).

But now I've encountered new problems while dealing with the TouchEvent.TOUCH_MOVE event. It's not working as expected: the event is only being triggered when I touch the screen with two or more fingers but not when I move them around the screen. It wasn't happening in the previous versions of the SDK (the behaviour was the expected).

There's a reported bug on the Adobe Bugbase about the Multitouch performance problems and a suggested (bad) workaround. You can take a look at it here:

https://bugbase.adobe.com/index.cfm?event=bug&id=3191100

Another possible solution can be surrender, cross fingers and use an external library as Gestouch ( https://github.com/fljot/Gestouch ) or Gestureworks ( http://www.gestureworks.com/ ).

Any suggestions are really appreciated.

Best regards.

chris.campbell
chris.campbell
Legend
October 9, 2013

I suspect this is the same as

https://bugbase.adobe.com/index.cfm?event=bug&id=3635216

We're currently investigating this bug and it would be great if you could add a comment / vote.

Thanks,

Chris

P
PlayTalesAuthor
Participant
October 10, 2013

Thank you very much Chris! (Wow, I've received a comment from Chris Campbell! Hehehe)

We have already voted the bug issue and hope it get fixed very soon. Meanwhile we will try to do as much as we can for help. For now, as we still have performance problems with previous versions of AIR, we found a solution using Flash Player 11, with which we don't have neither performance problems, nor Mouse/Touch difficulties.

Thank again!

Terms & ConditionsAccessibility statement
Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices