To create a webView recently I was using webViewClient. mWebView.setWebViewClient(new WebViewClient());
But I need to implement a progress bar. When user clicks a link, this progress bar will be visible. After page complete, progressbar will be hidden and webView will be visible. Regarding to this and this, So I added a WebChromeClient. But it loads first URL, but when I click a button inside my web page, a dialog opens and asks to open URL with which application.
I read that I should override shouldOverrideUrlLoading() method. but I get an error that "shouldOverrideUrlLoading" can't be overriden for WebChromeClient.
I would be happy if you can give an example that has progressbar and webView, also opens new URLs inside the same webView.
public class WebActivity extends Activity {
WebView mWebView;
ProgressBar mProgress;
Context mContext;
ProgressBar mProgressBar;
#Override
public void onCreate(Bundle savedInstanceState) {
this.mContext = getApplicationContext();
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebChromeClient(new myWebChromeClient());
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.getSettings().setUserAgentString("myApp");
mProgressBar = (ProgressBar) findViewById(R.id.webProgressBar);
mProgressBar.setMax(100);
}
public class myWebChromeClient extends WebChromeClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
#Override
public void onProgressChanged(WebView view, int newProgress) {
//WebActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
}
try with this code
webView = (WebView) view.findViewById(R.id.transcationwebview);
progressdialog = ProgressDialog.show(mContext, "",
mContext.getString(R.string.please_wait));
progressdialog.setCancelable(true);
progressdialog.setOnCancelListener(new OnCancelListener() {
#Override
public void onCancel(DialogInterface dialog) {
webView.stopLoading();
// webView.clearView();
}
});
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new MyChromeClient());
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return super.shouldOverrideUrlLoading(view, url);
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
if (progressdialog != null && progressdialog.isShowing()) {
progressdialog.dismiss();
} else {
}
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
#Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
// TODO Auto-generated method stub
super.onReceivedError(view, errorCode, description, failingUrl);
}
});
webView.loadUrl("url");
webView.getSettings().setBuiltInZoomControls(true);
public class MyChromeClient extends WebChromeClient {
#Override
public void onProgressChanged(WebView view, int newProgress) {
try {
if (progressdialog.isShowing()) {
progressdialog.setMessage(getString(R.string.loading)
+ newProgress + " %");
} else {
/*
* webView.stopLoading(); webView.clearView();
*/
}
} catch (Throwable e) {
e.printStackTrace();
}
}
}
you can extends WebViewClient instead of WebChromeClient and override the onPageStarted to show the ProgressBar and dismiss it in onPageReceived
I made some changes in the Activity.
use WebViewClient instead of WebChromeClient
and also use ProgressDialog instead of ProgressBar
public class WebActivity extends Activity {
WebView mWebView;
Context mContext;
ProgressDialog mProgressBar;
private static final int DIALOG2_KEY = 1;
#Override
public void onCreate(Bundle savedInstanceState) {
this.mContext = getApplicationContext();
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebViewClient(new MyWebChromeClient());
mWebView.getSettings().setBuiltInZoomControls(true);
showDialog(DIALOG2_KEY); }
#Override
protected void onResume() {
super.onResume();
mWebView.loadUrl("YOUR_URL");
}
private final class MyWebChromeClient extends WebViewClient {
#Override
public void onPageFinished(WebView view, String url) {
dismissDialog(DIALOG2_KEY);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.startsWith("file")) {
return false;
} else{
view.loadUrl(url);
return true;
}
}
}
#Override
protected Dialog onCreateDialog(int id) {
switch (id)
{
case DIALOG2_KEY:
{
mProgressBar.setMessage("Loading");
mProgressBar.setIndeterminate(true);
mProgressBar.setCancelable(false);
return mProgressBar;
}
}
return null;
}
}
Hope this help you
Related
I'm building an Webview app which displays my website. My website contains clickable mobile number, I need to open dialer when user clicks it.
I've gone through this question.
Since I'm new to Android development I don't know exactly where to paste that code.
Here Is my Mainactivity.java code
public class MainActivity extends AppCompatActivity {
private WebView webView;
private ProgressBar mProgressBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView= findViewById(R.id.web);
mProgressBar= findViewById(R.id.progressbar);
mProgressBar.setMax(100);
webView.loadUrl("https://");
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient());
webView.setWebChromeClient(new WebChromeClient(){
#Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
mProgressBar.setProgress(newProgress);
}
#Override
public void onReceivedTitle(WebView view, String title) {
super.onReceivedTitle(view, title);
}
#Override
public void onReceivedIcon(WebView view, Bitmap icon) {
super.onReceivedIcon(view, icon);
}
});
}
#Override
public void onBackPressed(){
if (webView.canGoBack()) {
webView.goBack();
}else {
finish();
}
}}
You need to Override the shouldOverrideUrlLoading() method in setWebViewClient()
SAMPLE CODE
webView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
progressBar.setProgress(progress);
}
});
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.contains("tel:"))
{
Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse(url));
startActivity(intent);
return true;
}else {
progressBar.setVisibility(view.VISIBLE);
view.loadUrl(url);
return true;
}
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
progressBar.setVisibility(View.GONE);
}
});
Earlier webbview works fine but today strange problem came that showing this when I load url..
Code for this is....
public class ShowSubjectListItemsInWebView extends ActionBarActivity {
private WebView webView;
private Toolbar mToolbar;
private SessionManager sessionManager;
private Security security;
private ProgressDialog dialog;
private String url;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_subject_list_items_in_web_view);
this.initViews();
this.setToolBar();
try{
sessionManager = new SessionManager(getApplicationContext());
security = new Security(getApplicationContext());
boolean isInternetPresent = security.isConnectingToInternet();
if (isInternetPresent) {
//I hide url due to some privacy contents
loadWebView(url);
} else {
showCustomToast("Internet not available \n Please check your internet connection");
}
}catch(Exception ex){
showCustomToast("Something went wrong");
}
}
//initializes all views
private void initViews() {
webView = (WebView) findViewById(R.id.filesWebView);
}
//show Url in WebView
public class myWebClient extends WebViewClient {
#JavascriptInterface
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
dialog = new ProgressDialog(ShowSubjectListItemsInWebView.this);
dialog.setProgressStyle(android.R.style.Widget_ProgressBar_Small);
dialog.setCancelable(false);
dialog.setMessage(Constant.KEY_PLEASE_WAIT);
dialog.show();
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
return false;
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
if (dialog.isShowing()) {
dialog.dismiss();
}
}
}
public void loadWebView(String decryptedUrl) {
webView.setWebViewClient(new myWebClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setDomStorageEnabled(true);
webView.setVisibility(View.VISIBLE);
webView.loadUrl(decryptedUrl);
}
}
I tested this code on lenovo, moto and MI devices...works fine but when I choose nexus device for loading url it gives the above stated error.
I am creating application that use WebView to access a online website. I am stuck where I have to add code to check availability of page.
public class SpartanWeb extends Activity {
WebView mWebView;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Adds Progrss bar Support
this.getWindow().requestFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.main);
// Makes Progress bar Visible
getWindow().setFeatureInt(Window.FEATURE_PROGRESS,
Window.PROGRESS_VISIBILITY_ON);
// Get Web view
mWebView = (WebView) findViewById(R.id.webView1);
WebSettings websettings = mWebView.getSettings();
websettings.setJavaScriptEnabled(true);
mWebView.stopLoading();
mWebView.clearCache(true);
mWebView.loadUrl("http://google.com");
mWebView.setHorizontalScrollBarEnabled(false);
mWebView.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
mWebView.setWebViewClient(new WebViewClient());
mWebView.setDownloadListener(new DownloadListener() {
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
}
});
// onProgressChanged
final Activity MyActivity = this;
mWebView.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
// bar disappear after URL is loaded, and changes string to
// Loading...
MyActivity.setTitle("Loading...");
MyActivity.setProgress(progress * 100); // Make the bar
// disappear after URL
// is loaded
// Return the app name after finish loading
if (progress == 100)
MyActivity.setTitle(R.string.app_name);
}
});
}// EOM oc
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
mWebView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
}
I am trying to add onReceivedError but for some reason custom page is not loading.
/** Called when the activity is first created. */
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)
{
mWebView.loadUrl("file:///android_asset/error.html");
}
Please advise what to do.
You can call loadErrorPage(view) function in the onReceivedError function.
The following code will load the error content you need to show.Here i am load the html file with loadDataWithBaseURL.
public void loadErrorPage(WebView webview){
if(webview!=null){
String htmlData ="<html><body><div align=\"center\" >"This is the description for the load fail : "+description+"\nThe failed url is : "+failingUrl+"\n"</div></body>";
webview.loadUrl("about:blank");
webview.loadDataWithBaseURL(null,htmlData, "text/html", "UTF-8",null);
webview.invalidate();
}
}
I added onReceivedError to mWebView.setWebViewClient(new WebViewClient so now it's working. Thanks for tips.
mWebView.setWebViewClient(new WebViewClient() {
#Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
mWebView.loadUrl("file:///android_asset/error.html");
} });
You can use the following code ..
public class TestResultWebclient extends WebViewClient {
ProgressDialog progressDialog;
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
if (progressDialog == null) {
progressDialog = new ProgressDialog(TermsAndCondsMrupeeActivity.this);
progressDialog.setMessage("Loading...");
progressDialog.show();
}
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
if (progressDialog != null)
try {
if (progressDialog.isShowing()) {
progressDialog.dismiss();
progressDialog = null;
}
} catch (Exception exception) {
exception.printStackTrace();
}
super.onPageFinished(view, url);
}
}
I have a code in which the progress dialog appears along with main layout. I want the progress dialog to be on the forefront and the main layout in background just like its showing the link enter link description here.
public class MainActivity extends Activity {
private WebView webView;
private EditText urlEditText;
private ProgressBar progress;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
urlEditText = (EditText) findViewById(R.id.urlField);
webView = (WebView) findViewById(R.id.webView);
webView.setWebViewClient(new MyWebViewClient());
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setVisibility(View.GONE);
Button openUrl = (Button) findViewById(R.id.goButton);
openUrl.setOnClickListener(new OnClickListener() {
#SuppressLint("SetJavaScriptEnabled")
#Override
public void onClick(View view) {
String url = urlEditText.getText().toString();
if (validateUrl(url)) {
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl(url);
}
}
private boolean validateUrl(String url) {
return true;
}
});
}
private class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
progress.setVisibility(View.GONE);
MainActivity.this.progress.setProgress(100);
super.onPageFinished(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
progress.setVisibility(View.VISIBLE);
MainActivity.this.progress.setProgress(0);
super.onPageStarted(view, url, favicon);
}
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
}
Try to use WebChromeClient instead of WebViewClient to show and update progress :
show pregress bar before call webview.loadUrl() :
if (validateUrl(url)) {
webView.getSettings().setJavaScriptEnabled(true);
progress.setVisibility(View.VISIBLE);
webView.loadUrl(url);
}
Update progress in onProgressChanged :
webView.setWebChromeClient(new WebChromeClient() {
#Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
if (newProgress == 100) {
progress.setVisibility(View.GONE);
} else {
progress.setProgress(newProgress);
}
}
});
Simply put how can I make a progress dialog show up every time a new link is clicked in my webview. I have tried many tutorials and methods but every one of them only shows the dialog once, when the app is initially loaded.
Here is my code
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
ProgressDialog dialog = ProgressDialog.show(myActivity.this, "",
"Loading. Please wait...", true);
#Override
public void onPageFinished(WebView view, String url) {
dialog.dismiss();
}
check out this:
wvCouponsAndOffers.setWebViewClient(new WebViewClient() {
ProgressDialog progressDialog = new ProgressDialog(CouponsWebViewUI.this);
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressDialog.setMessage(StringConstants.PROGRESS_DIALOG_MSG);
progressDialog.setCancelable(false);
progressDialog.setOnKeyListener(new OnKeyListener(){
#Override
public boolean onKey(DialogInterface dialog, int keyCode,
KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_SEARCH) {
return true;
}
else
return false;
}});
progressDialog.show();
}
public boolean shouldOverrideUrlLoading(WebView view, String url) {
progressDialog.setMessage(StringConstants.PROGRESS_DIALOG_MSG);
progressDialog.setCancelable(false);
progressDialog.setOnKeyListener(new OnKeyListener(){
#Override
public boolean onKey(DialogInterface dialog, int keyCode,
KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_SEARCH) {
return true;
}
else
return false;
}});
progressDialog.show();
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
if (progressDialog.isShowing()) {
progressDialog.dismiss();
}
}
});
Try this,
// Let's display the progress in the activity title bar, like the
// browser app does.
getWindow().requestFeature(Window.FEATURE_PROGRESS);
webview.getSettings().setJavaScriptEnabled(true);
final Activity activity = this;
webview.setWebChromeClient(new WebChromeClient() {
public void onProgressChanged(WebView view, int progress) {
// Activities and WebViews measure progress with different scales.
// The progress meter will automatically disappear when we reach 100%
activity.setProgress(progress * 1000);
}
});
webview.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
}
});
webview.loadUrl("http://slashdot.org/");
And if you want to make your own progressDialog then
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
// Start PROGRESS DIALOG
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
//HIDE PROGRESS DIALOG LOADING IT HAS FINISHED
}
});
And let me know what happen..
Try this easiest one,it work for me
public class HomeWebViewActivity extends AppCompatActivity{
private String weburl;
private WebView webview;
private Toolbar toolbar;
private ProgressDialog prDialog;
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.home_webview_activity);
toolbar = (Toolbar) findViewById(R.id.toolbar_homewebview);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
weburl="ADD YOUR URL HERE";
webview = (WebView) findViewById(R.id.webviewinfo);
webview.setWebViewClient(new WebVwClientcls());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webview.loadUrl(weburl);
}
private class WebVwClientcls extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
prDialog = new ProgressDialog(HomeWebViewActivity.this);
prDialog.setMessage("Please wait ...");
prDialog.show();
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if(prDialog!=null){
prDialog.dismiss();
}
}
}
}