Android WebView with Facebook Login

Question

I have an application containing webview. Inside the web browser, the user must log in to Facebook using the default login button and authentication. In my webview, after a user logs in to oauth handshake, the URL contains the "denied access ... user denied your request" error. However, when I visit the same URL in the main browser, everything works as expected and the user is logged in successfully. I assume that there are some methods that I need to implement in WebViewClient or WebChromeClient in order to provide the full capabilities of my browser. However, I do not know what to do. Thoughts?

Answer 1

Well, you can use the facebook SDK for your implementation.

mostly in web browsing they showed their content like this

private void setUpWebView(int margin) {
        LinearLayout webViewContainer = new LinearLayout(getContext());
        mWebView = new WebView(getContext());
        mWebView.setVerticalScrollBarEnabled(false);
        mWebView.setHorizontalScrollBarEnabled(false);
        mWebView.setWebViewClient(new FbDialog.FbWebViewClient());
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.loadUrl(mUrl);
        mWebView.setLayoutParams(FILL);
        mWebView.setVisibility(View.INVISIBLE);
        mWebView.getSettings().setSavePassword(false);

        webViewContainer.setPadding(margin, margin, margin, margin);
        webViewContainer.addView(mWebView);
        mContent.addView(webViewContainer);
    }

    private class FbWebViewClient extends WebViewClient {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            Util.logd("Facebook-WebView", "Redirect URL: " + url);
            if (url.startsWith(Facebook.REDIRECT_URI)) {
                Bundle values = Util.parseUrl(url);

                String error = values.getString("error");
                if (error == null) {
                    error = values.getString("error_type");
                }

                if (error == null) {
                    mListener.onComplete(values);
                } else if (error.equals("access_denied") ||
                           error.equals("OAuthAccessDeniedException")) {
                    mListener.onCancel();
                } else {
                    mListener.onFacebookError(new FacebookError(error));
                }

                FbDialog.this.dismiss();
                return true;
            } else if (url.startsWith(Facebook.CANCEL_URI)) {
                mListener.onCancel();
                FbDialog.this.dismiss();
                return true;
            } else if (url.contains(DISPLAY_STRING)) {
                return false;
            }
            // launch non-dialog URLs in a full browser
            getContext().startActivity(
                    new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
            return true;
        }