Travelflan Widget Android Usage Sample For China-mobile

Introduction

We provides the web for chatbot services. Ultimately, we will recommend using it through the Native sdk. Until then, we recommend using the webview module in your Android app.

Quick Start

1. Insert WebViewClientImpl, JavaScriptInterface source file in your application. If you want to know more about how to use it, please refer to the official Android document
2. Declare and implement your source code refer to the usage below in your Activity.

Usage

// Declare Your Activity
@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        // set Widget WebView
        setTFWebView();

        // This is for controle webview
        final Button button = findViewById(R.id.button_id);
        button.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                if(tfWebView.getVisibility() == View.GONE) {
                    tfWebView.setVisibility(View.VISIBLE);
                } else {
                    tfWebView.setVisibility(View.GONE);
                }
            }
        });
    }

    private void setTFWebView() {
        tfWebView = (WebView) findViewById(R.id.webview);

        // allow javascript
        WebSettings webSettings = tfWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);

        WebViewClientImpl webViewClient = new WebViewClientImpl(this);
        tfWebView.setVisibility(View.GONE);
        tfWebView.setWebViewClient(webViewClient);
        tfWebView.addJavascriptInterface(new JavaScriptInterface(this, tfWebView),"androidHandler");
        tfWebView.loadUrl("https://widget-cm.travelflan.com.cn");
    }

    @Override
    public void onBackPressed() {
        // block back button
        if(tfWebView.canGoBack()) {
            tfWebView.goBack();
        } else {
            // define your task!
//            super.onBackPressed();
        }
    }

In JavaScriptInterface this script should be excute.

@Override
    public void onPageFinished(WebView view, String url) {
        String setScript = "window.webViewBridge.setEnv('android')";
        view.loadUrl("javascript:" + setScript);
        String script = "window.webViewBridge.send({type:'initialize', provider_id: 13})";
        view.loadUrl("javascript:" + script);
        super.onPageFinished(view, url);
    }