add this back

http://code.google.com/p/android/issues/detail?id=20446

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code.google 有discuss

http://code.google.com/p/android/issues/detail?id=25722

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http://stackoverflow.com/questions/5213635/honeycomb-hardware-acceleration

try this, turn off the alpha channel (no use)

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http://thehelios.wordpress.com/2012/09/13/hardware-acceleration-on-android-4-0/

more ref, and have many hints !

http://developer.android.com/guide/topics/graphics/hardware-accel.html

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change to translateX (try)

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http://stackoverflow.com/questions/13500452/android-webview-renders-blank-white-view-doesnt-update-on-css-changes-or-html

or read this

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add this
-webkit-overflow-scrolling: touch;

http://stackoverflow.com/questions/11370418/scrolling-through-touchmove-is-choppy

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http://developer.android.com/reference/android/webkit/WebSettings.html

change RenderPriority and CACHE SETTING (try)

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https://groups.google.com/forum/?fromgroups=#!topic/android-developers/4YATUvb-t68

try large heap true (try)

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change all png to jpg
(no transparency channel in yr app)

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