Flickering on IOS

jls · Post by **jls** » Mon Oct 08, 2012 1:56 pm

Then you select a series on IOS the chart is flickering.

Is it possible to avoid this?

Jørgen

Post by **Yeray** » Tue Oct 09, 2012 1:27 pm

Hi Jørgen,

Are you reproducing this in any of the examples of the demo?
Maybe in the testing example I posted here?

jls · Post by **jls** » Tue Oct 09, 2012 1:58 pm

This sample flickers:

http://www.steema.com/files/public/teec ... g/test.htm

not always, try to click on the series in the legend.

Jørgen

Narcís · Post by **Narcís** » Wed Oct 17, 2012 8:02 am

Hi Jørgen,

Some enhancements have been done to TeeChart.js and we are not able to reproduce this issue here now. I'll send you the current version, can you please check if it solves the problem for you?

Thanks in advance.

jls · Post by **jls** » Wed Oct 17, 2012 9:25 am

Now it doesn't flicker but it is not possible to select series with single tap
if you swipe over the series it is selected

Added sample chart

jls · Post by **jls** » Fri Oct 26, 2012 12:37 pm

Any updates?

Post by **Pep** » Wed Oct 31, 2012 3:56 pm

Hi Jørgen,

this should be related with the focused html5 canvas element. In focus is not assigned, user have to tap over the object before to be able to swipe of tap over the chart Series.
The following code shows how to set a focus for specific elements :

Code: Select all

   <canvas id="camvas"
           width="500px"
           height="500px"
           tabindex="1">
   </canvas>

jls · Post by **jls** » Thu Nov 01, 2012 11:39 am

Changed this

<BODY onload="draw()" onresize="resize()">
<br><canvas id="canvas" style="height:90%; width: 100%; align: center;" tabindex="1";>
</canvas>
</BODY>

but that did not help.

Must I do something else to make it work?

jls · Post by **jls** » Fri Nov 16, 2012 12:07 pm

Any idea then you will release a version that woks better on IOS?

Post by **Pep** » Mon Nov 19, 2012 5:08 pm

Hi

we're working on this version in order to improve its functionality, I've noticed that using zoom from a device does not work at all, due to the touch gestures, however, I can do a scroll at in this example (which I'm not sure if this is what you're trying to accomplish or just do a tap over the series pointer). Could you please check if it's working for you ?

You can also try to run this example which uses tap, but for the moment the tap it's not very accurate for use into the device.

jls · Post by **jls** » Tue Nov 20, 2012 2:30 pm

Scroll sample is ok.

This doesn't work:
http://www.steema.com/files/public/teec ... aphics.htm
It is not possible to select a series.

This work if you move you finger to the pie instead of taping it.
http://www.steema.com/files/public/teec ... ltipie.htm

Jørgen

Post by **Pep** » Thu Nov 22, 2012 2:29 pm

Hi Jørgen,

ok, we're working on these issues, gestures on devices.
We hope to have a new maintenance release available shortly.

Flickering on IOS

Flickering on IOS

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