CODEWITHSUNDEEP
iphonesencha-touchad-hoc-distribution
Yahia
Yahia

Reputation: 691

sencha touch app very slow on iPhone Device

am trying to test my app on iPhone device , i tested it on android device and it works good , and tested it on the iPhone emulator using Xcode and it's extremely fast and reliable ,

but when i tried it using Ad Hoc on iPhone device it was extremely slow and jerky

also , swipe lists and buttons clicks are very very slow

am using PhoneGap + Sencha Touch

any ideas , please help ? !

Upvotes: 1

Views: 1810

Answers (1)

Chris Farmiloe
Chris Farmiloe

Reputation: 14175

performance does vary enormously between devices, and writing platform/device specific paths to degrade on different devices is quite common.

Assuming that it was a moderatly fair comparrison (ie, not a 1st gen iPhone vs Brand new Android device), I would guess that you are either doing something quite Javascript intensive (where the Android phone might just have the edge) or you have tried to enable nice pretty box-shadows/animations for one-platform but not the other.

Biggest speed increases I have found:

  • Disable CSS text/box-shadows. (can't stress this one enough!)
  • Disable CSS gradients.
  • Don't keep lots of Panels alive in the background, destroy anything that is not visible and rebuild it as you need it.
  • Stay away from animations unless your panels are very simple.
  • If your button handlers do anything complex, Defer them so that the button doesn't appear to stall

Upvotes: 1

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