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Tuesday, 7 August 2012

Display Progress Bar on WebView when loading


Display Progress Bar on WebView when loading

Continuous work on last post Enable JavaScript and built-in zoom control of WebView; to display progress bar on WebView when loading:

Display Progress Bar on WebView when loading

- Request feature of Window.FEATURE_PROGRESS:
Add the code getWindow().requestFeature(Window.FEATURE_PROGRESS) before setContentView().

- Implement your custom WebChromeClient class with onProgressChanged() method overrided, to call setProgress() method.

- Updated onCreate() should like this:
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  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
       
      getWindow().requestFeature(Window.FEATURE_PROGRESS);
      setContentView(R.layout.main);
       
      webView = (WebView)findViewById(R.id.webview);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
      webView.setWebViewClient(new MyWebViewClient());
      webView.loadUrl(DEFAULT_URL);
       
      final Activity activity = this;
webView.setWebChromeClient(new WebChromeClient() {
 public void onProgressChanged(WebView view, int progress) {
  // Activities and WebViews measure progress with different scales.
  // The progress meter will automatically disappear when we reach 100%
  activity.setProgress(progress * 100);
   
 }});
       
  }

akm
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