Track WebViews

It is essential that the following steps are done before an URL is loaded in your WebView. With that in mind, you should inject your webviews in onCreate() in Activity and onCreateView() in Fragment.

No matter where you decide to add the following injection code, keep in mind that it will not take effect until the next WebView content reload.

If your page can be loaded both in a WebView and in a browser, you will need to differentiate both, in order to inject the proper CS Tag first.

You may have already set up a way to handle this differentiation. If not, here’s how to inject a variable to detect when the page is being loaded from a WebView, before adding our JavaScript Bridge.

val isWebViewJS = "window.isWebView = true;"
val webView = findViewById<WebView>(R.id.webview)
webView.settings.javaScriptEnabled = true
webView.webViewClient = object : WebViewClient() {
    override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?){
        webView.evaluateJavascript(isWebViewJS){ _ -> }
        super.onPageStarted(view, url, favicon)
    }
}

Use the following API:

CsWebViewManager.injectEventTrackingInterface(@NonNull WebView webView) // to start tracking the specific WebView

It will inject our JavaScript Bridge in order to connect the CS Tag in WebView mode and our SDK.

After doing all the above, in order for the implementation to be completed, you will need to make sure our CS Tag in WebView mode is injected on your pages. To do so, refer to 📚 Mobile Apps WebView Tracking Documentation.

Let’s illustrate our implementation with an Activity. In your onCreate() method, you will add the following:

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_web_view)

    // Inject the variable to detect that you are in a WebView context
    val isWebViewJS = "window.isWebView = true;"
    val webView = findViewById<WebView>(R.id.webview)
    webView.settings.javaScriptEnabled = true
    webView.webViewClient = object : WebViewClient() {
        override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?){
            webView.evaluateJavascript(isWebViewJS){ _ -> }
            super.onPageStarted(view, url, favicon)
        }
    }

    // Inject the Bridge between the CS Tag in WebView mode and the SDK
    CsWebViewManager.injectEventTrackingInterface(webView)

    webView.loadUrl(DEFAULT_WEB_VIEW_CONTENT_URL)
    webView.reload()
}

If you are using Fragments, the approach is similar, but should be done in the onCreateView() method, as stated previously.

Currently, there is no way of validating the implementation on the native side only.

Once you arrive on the screen with the tracked WebView, you should see an initial confirmation log message:

WebView detected and WebView tracking enabled on native side

Specific logs are then emitted for:

• Page views fired by the WebView Tracking Tag in the same format as for screen views: Screenview - Screen name: {{page name given}} - Screen number: 11
• Taps and swipes detected by the WebView Tracking Tag in the same format as for defaults taps and swipe but with the target matching an HTML DOM element value: Tap - Target: {Last view info: div:eq(0)} - Unresponsive: false

Going further: If you still have doubt, you can look for logs by filtering on WebViewEventProcessor. Their presence will confirm that it is well implemented on both web and native sides.