How to properly manage WebView lifecycle? What are the points to note?

Properly managing WebView lifecycle is crucial for app performance and stability. Here are the key points to note:

1. Creation and initialization:

   • Create WebView instances at appropriate times
   • Configure WebView parameters reasonably
   • Avoid time-consuming operations on the main thread

2. Activity state management:

   • Call WebView's onResume in Activity's onResume
   • Call WebView's onPause in Activity's onPause
   • Pause/resume JavaScript execution, plugins and timers

3. Destruction and release:

   • Properly destroy WebView in Activity's onDestroy
   • First remove WebView from parent container
   • Call WebView's removeAllViews() and destroy() methods
   • Clean up WebView-related resources and references

4. Memory management:

   • Avoid memory leaks, especially when used in Fragments
   • Timely clear WebView cache and history
   • Monitor WebView memory usage

5. Exception handling:

   • Catch possible exceptions in WebView
   • Implement error handling methods like onReceivedError
   • Provide error pages or retry mechanisms

6. Configuration change handling:

   • Handle screen rotation and other configuration changes
   • Save and restore WebView state
   • Avoid duplicate initialization caused by configuration changes

7. Preloading strategy:

   • Reasonably use WebView pools
   • Implement WebView pre-creation and reuse
   • Balance memory consumption and loading speed improvement brought by preloading