Home Web Front-end CSS Tutorial Here are some question-based titles that fit your article: **General

Here are some question-based titles that fit your article: **General

Oct 25, 2024 pm 09:53 PM

Here are some question-based titles that fit your article:

**General

Android WebView Issues: White Rendering, Inconsistent CSS and HTML Updates, and Laggy Animations

Android WebView is a powerful tool for embedding web content into Android applications. However, users often encounter issues with blank renders, unresponsive CSS and HTML changes, and choppy animations.

Solution Part 1: Enable Hardware Acceleration and Update API

Ensure hardware acceleration is enabled by setting android:hardwareAccelerated="true" in the AndroidManifest.xml file. Run your app using the latest version of the Android API supported by your device.

Solution Part 2: Force Redraw with Invalidate()

Create a custom WebView subclass (MyWebView) that overrides the onDraw method and calls invalidate() to force continuous redraw. However, this should be used sparingly to avoid battery drain.

Solution Part 3: Optimize CSS and Settings

Add -webkit-transform: translate3d(0,0,0) to the body div CSS in the web content. This helps with rendering issues. In the WebView settings, set the RenderPriority to HIGH and PluginState to ON_DEMAND.

Solution Part 4: Use CrossWalk (Android 4.4 )

For Android versions 4.4 and above, consider using CrossWalk, a drop-in WebView replacement that provides a more optimized web rendering experience.

Solution Part 5: Handle DOM Element Differences

The invalidate() solution may not work for all cases. For larger DOM trees, it may be necessary to apply the CSS transform to specific element types based on your DOM tree.

Additional Tips:

  • Use CordovaWebView (if using Cordova/PhoneGap)
  • Identify specific situations where issues occur and provide details

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