List View Performance

[debianw]

REQUIRED INFORMATION

Ext version tested:

• Sencha Touch 2.2.0-alpha
• Sencha Touch 2.1

Browser versions tested against:

• Lg Optimus G / AppleWebkit/534.30 Android 4.0.4
• Nexus Asus / AppleWebkit/535.19 Andriod 4.2; Chrome/18.0.1025.166

Description:

• List view is extremely slow when scrolling. (I tested the ones that comes in Kitchen Sink). (On Lg Optimus G)
• The Nexus Asus tablet renders faster than the Optimus G but the Nexus doesn't render well a List view with disclosure and the items inside the List seems to disappear.
• Both cases doesn't feel smooth and fast when scroll. I don't know why since the Nexus Asus has Chrome as the main browser.
• Lg Optimus G doesn't render well in both versions Sencha touch 2.2 and 2.1
• Nexus tablet performs well on Touch 2.1 but not on 2.2

Steps to reproduce the problem:

• Create a List View and add more than 60 items (A simple contact list)
• You can use the ones that are in Kitchen Sink demo.

The result that was expected:

• it renders in timely manner and smooth when scroll fast.

The result that occurs instead:

• It is painfully slow.

Operating System:

• Android 4.0 and 4.2

[mitchellsimoens]

Thanks for the report! I have opened a bug in our bug tracker.