Keyboard in legacy apps under iOS 7 is laggy

Originator:shaun.ruigrok
Number:rdar://14669687 Date Originated:07-Aug-2013 5:03pm
Status:Closed Resolved:Yes
Product:iPhone/iPod Touch/iPad Product Version:iOS 7 beta 5 (11A4449a)
Classification:Performance Reproducible:Always
 
Summary:
When entering text in a legacy app that uses the old-style keyboard running under iOS 7, the keyboard exhibits a delayed and "laggy" behaviour, where text entered takes an extended period of time before appearing on-screen, and the keypress animation is missed or delayed. 

Steps to Reproduce:
1. Open an App Store app that allows text entry 
2. Enter text

Expected Results:
Keyboard responds to touches promptly and without delay

Actual Results:
The keyboard is laggy, with the key popup animation being delayed by many milliseconds and the letters taking a long time to appear on-screen. 

Regression:
iOS beta 4 and earlier did not exhibit this issue.

Notes:
I have produced a video demonstrating the issue, it can be found on YouTube (unlisted) here: youtu.be/2h7wkSno4To

Comments


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