how to get html content from a webview?
Actually this question has many answers. Here are 2 of them :
- This first is almost the same as yours, I guess we got it from the same tutorial.
public class TestActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.webview); final WebView webview = (WebView) findViewById(R.id.browser); webview.getSettings().setJavaScriptEnabled(true); webview.addJavascriptInterface(new MyJavaScriptInterface(this), "HtmlViewer"); webview.setWebViewClient(new WebViewClient() { @Override public void onPageFinished(WebView view, String url) { webview.loadUrl("javascript:window.HtmlViewer.showHTML" + "('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');"); } }); webview.loadUrl("http://android-in-action.com/index.php?post/" + "Common-errors-and-bugs-and-how-to-solve-avoid-them"); } class MyJavaScriptInterface { private Context ctx; MyJavaScriptInterface(Context ctx) { this.ctx = ctx; } public void showHTML(String html) { new AlertDialog.Builder(ctx).setTitle("HTML").setMessage(html) .setPositiveButton(android.R.string.ok, null).setCancelable(false).create().show(); } }}This way your grab the html through javascript. Not the prettiest way but when you have your javascript interface, you can add other methods to tinker it.
- An other way is using an HttpClient like there.
The option you choose also depends, I think, on what you intend to do with the retrieved html...
In KitKat and above, you could use evaluateJavascript method on webview
wvbrowser.evaluateJavascript( "(function() { return ('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>'); })();", new ValueCallback<String>() { @Override public void onReceiveValue(String html) { Log.d("HTML", html); // code here } });See this answer for more examples
For android 4.2, dont forget to add @JavascriptInterface to all javascript functions