In webview apps generally popups are disabled, so to make Account Kit work on those platforms you’ll have to enable popups in webview by just adding the below simple code to your application
webView.getSettings().setSupportMultipleWindows(true); webView.setWebChromeClient(new WebChromeClient() { @Override public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture, Message resultMsg) { WebView popupView = new WebView(WebpageActivity.this); popupView.getSettings().setJavaScriptEnabled(true); popupView.getSettings().setPluginState(PluginState.ON); popupView.getSettings().setSupportMultipleWindows(true); view.addView(popupView); WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj; transport.setWebView(popupView); resultMsg.sendToTarget(); popupView.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } }); return true; } } });