Android: The progress bar in the window's title does not display

Question

I have a web view to override the built-in browser and I want to show a progress indicator on the title bar.

This is the code:

    @Override
public v         


        

Answer 1

It appears that with Android 5.0 (API 21) and above Windows.FEATURE_PROGRESS no longer works. Taking some hints from the response by univasity, I was able to build a progress bar similar to those in other browsers.

activity_main.xml"

The FrameLayout allows the progress bar to float above the webview. Setting android:max to 100 makes it align with the default range in the activity, so the values don't have to be converted to the default of 0-10000 otherwise used by the progress bar. android:visibility="gone" makes the progress bar invisible by default.

MainActivty.java:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Get the WebView and the ProgressBar from activity_main.xml.
    final WebView mainWebView = (WebView) findViewById(R.id.webView);
    final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);

    // Enables JavaScript.
    mainWebView.getSettings().setJavaScriptEnabled(true);

    // Updates the progress bar whenever there are changes and hides it again when it completes.
    mainWebView.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int progress) {
            if (progress < 100) {
                    progressBar.setVisibility(View.VISIBLE);
                } else {
                    progressBar.setVisibility(View.GONE);
                }
            progressBar.setProgress(progress);
        }
    });

    // Makes the mainWebView handle all URLs internally instead of calling the default browser.
    mainWebView.setWebViewClient(new WebViewClient());

    // Load a sample URL.
    mainWebView.loadUrl("http://developer.android.com/");
}