I'm loading data in a webview using loadDataWithBaseURL from a string. I want to implement a listener which tells me when the data is loaded completely so that i may proceed with my code.
I've searched a lot but could not find any relevant topic
if (new String(rowData.getResource().getData()) != null) webView.loadDataWithBaseURL("", new String(rowData.getResource().getData()), "text/html", "UTF-8", "about:blank");
Use WebViewClient and implement onPageStarted,onPageFinished to know the status of the webview.
ProgressDialog progressDialog = new ProgressDialog.show(this);
progressDialog.setMessage("Loading WebPage...");
class CustomWebViewClient extends WebViewClient {
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressDialog.dismiss();
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressDialog.show();
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url);
}
}
webview.setWebViewClient(new CustomWebViewClient());
Try this Tested working demo.
public class URLActivity extends Activity {
private ProgressDialog progress;
@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
WebView webView = (WebView) findViewById(R.id.webView);
webView.setInitialScale(0);
webView.setWebViewClient(new WebViewClient());
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setLoadsImagesAutomatically(true);
webView.loadDataWithBaseURL("", new String(rowData.getResource().getData()), "text/html", "UTF-8", "about:blank");
webView.setWebChromeClient(new WebChromeClient() {
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
if (newProgress > 0) {
showProgressDialog("Please Wait");
}
if (newProgress >= 100) {
hideProgressDialog();
// data load successfully. you can go further.
}
}
});
}
public void showProgressDialog(final String msg) {
runOnUiThread(new Runnable() {
public void run() {
if (progress == null || !progress.isShowing()) {
progress = ProgressDialog.show(URLActivity.this, "", msg);
}
}
});
}
public void hideProgressDialog() {
runOnUiThread(new Runnable() {
@Override
public void run() {
try {
if (progress.isShowing())
progress.dismiss();
} catch (Throwable e) {
}
}
});
}
}
