Pass parameters to WebView in Android
The html you want to display in WebView and pass a string to it. Create the file at app/src/main/assets/html/index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1"> <style> #message { width: 100%; text-align: center; font-size: 24px; } </style> </head> <body> <p id="message">...</p> <script type="text/javascript"> function loadMsg(msg) { document.getElementById("message").innerHTML = msg; } </script> </body> </html>
The WebView in a layout file for rendering html pages.
<WebView android:id="@+id/wv_html_content" android:layout_width="match_parent" android:layout_height="match_parent"></WebView>
The Android code to load a local html page and pass a string to it.
WebView wvContent = (WebView) findViewById(R.id.wv_html_content); WebSettings webSettings = wvContent.getSettings(); webSettings.setJavaScriptEnabled(true); wvContent.setWebViewClient(new WebViewClient() { @Override public void onPageFinished (WebView view, String url) { if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) { view.evaluateJavascript("loadMsg('How are you today!')", null); } else { view.loadUrl("javascript:loadMsg('How are you today!')"); } } }); wvContent.loadUrl("file:///android_asset/html/index.html");
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