javascript - Android Cordova canvas app lags only for specific device running 2.3.6 Gingerbread when no touch events are being fired -


my app uses html5 canvas , uses cordova build .apk file.

i have tested app on 5 devices running varying versions of android os , of varying hardware capabilities. 1 lagged samsung galaxy ace 2, running android 2.3.6 gingerbread. believe os issue because phones tested similar/worse hardware not lag.

when screen touched , remains touched, lag reduced. noticed pixels seem smoothed or anti-aliased when screen not touched more pixelated when screen touched, believe causing lag. prefer less pretty no lag opposite. javascript not cause happen, , stuck on how resolve it.

the following did not solve problem:

context.imagesmoothingenabled = false;

and using css image-rendering settings did not help.

the javascript has touchstart, touchend , touchmove event listeners attempted hack way faking touchmove event if user not touching screen, although couldn't working , it's not elegant solution anyway.

i have had problem weeks , want apps work on devices.

does have suggestions?

thanks, george.


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