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:
    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);

}});

}



next:
- Handle the Back button in WebView, to back in history.

related:
- Create your own London 2012 App



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