How to get return value from javascript in WebView of Android?

by

Same as Keith but shorter answer

webView.addJavascriptInterface(this, "android");
webView.loadUrl("javascript:android.onData(functionThatReturnsSomething)");

And implement the function

@JavascriptInterface
public void onData(String value) {
   //.. do something with the data
}

Don’t forget to remove the onData from proguard list (if you have enabled proguard)

More Related Contents:

  1. What is meaning of boolean value returned from an event-handling method in Android
  2. How to use LocalBroadcastManager?
  3. How to have Android Service communicate with Activity
  4. Difference between a View’s Padding and Margin
  5. Android Fatal signal 11 (SIGSEGV) at 0x636f7d89 (code=1). How can it be tracked down?
  6. How to make a countdown timer in Android?
  7. How to hang up outgoing call in Android?
  8. How to build an APK file in Eclipse?
  9. How to add a custom button state
  10. Force application to restart on first activity
  11. Android Command line tools sdkmanager always shows: Warning: Could not create settings
  12. Do I need all three constructors for an Android custom view?
  13. Android TextView padding between lines
  14. Android Spinner : Avoid onItemSelected calls during initialization
  15. What is the maximum amount of RAM an app can use?
  16. Custom ListView Android
  17. Set the layout weight of a TextView programmatically
  18. How to dismiss notification after action has been clicked
  19. How to get Retrofit success response status codes
  20. Android: is using setContentView multiple times bad while changing layouts?
  21. check whether lock was enabled or not
  22. Android : How to change Playback Rate of music using OpenSL ES
  23. Android emulator screen fills up only some fraction part of actual android emulator screen
  24. Inflate a view in a background thread
  25. How to enable zoom controls and pinch zoom in a WebView?
  26. Published Android apk gives error “Package file was not signed correctly”
  27. Android Visualizer implementation crash
  28. android search dialog customization
  29. Client-Server: File transfer from Android to PC connected via socket
  30. Android with Gradle (Java finished with non-zero exit value 2)

Leave a Comment