WebView Data Caching (Android)

• I am loading HTML data into WebView using loadDataWithBaseURL
• Do it one more time

• Run the following code and instead of returning to the first page, all applications are terminated. What am I doing wrong here?

  public boolean onKeyDown(final int keyCode, final KeyEvent event) {
  if (keyCode == KeyEvent.KEYCODE_BACK && this.browser.canGoBack()) {
      this.browser.goBack();
      return true;
  }
  return super.onKeyDown(keyCode, event);
  
        
  
          
          
          
        
  
      

  }

Also - is it possible for the WebView cache to survive Activity # onStop? Basically - if I close the app and reopen it - I want the WebView to display the last data that was loaded, currently - I get a blank screen and then have to reload the same data again