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how to optimize renderspeed in android webview

rated 0 times [ 4] [ 4] / answers: 1 / hits: 28279 / 13 Years ago, tue, january 10, 2012, 12:00:00

Is there a possibility to enhance the rendering speed in webview? With a simple innerHTML it takes close to 1 sec to display the content although the js rendering takes a few ms. With IOS, exactly the same code is running swiftly and perfectly, even with less performant hardware.

Tested under Android: 2.3, 3.2, 4.0 (Desire HD, Galaxy Nexus, Galaxy Tab)
IOS: 4, 5 (iPhones 3gs, 4)

Appreciate any helpful responses!

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isaac

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2 Years ago

answered 13 Years ago jimmieo · Accepted Answer

There are a few things you can try:

Turn on hardware acceleration by adding android:hardwareAccelerated=true to the application or activity tag in the Android manifest file. More info here: http://developer.android.com/guide/topics/graphics/hardware-accel.html

Modify the RenderPriority of the webview - http://developer.android.com/reference/android/webkit/WebSettings.RenderPriority.html

Optimize your javaScript and CSS to minimize the number of reflows, memory used, and DOM size - http://www.html5rocks.com/en/mobile/mobifying.html#toc-optimizations

Personally, I found that keeping the DOM as small as possible, and enabling hardware acceleration made all of the difference between an unusable app, and a fairly smooth app.