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Link inside webpage always return "404 not found" error if opened from webview ~Android ~Java

I have a webview that opens up a webpage that contains a some links. However, if I click on each link, it will show "404 Not Found" error. I have done the shouldOverrideUrlLoading inside WebViewClient, but it results the same.
Please help. Thanks in advance.
this is how I set my webview:
WebView web_view = (WebView)view.findViewById(R.id.web_view);
WebSettings webSettings = web_view.getSettings();
web_view.setWebChromeClient(new WebChromeClient(){
#Override
public void onProgressChanged(WebView view, int newProgress) {
progressBar.setProgress(newProgress);
super.onProgressChanged(view, newProgress);
}
});
web_view.setWebViewClient(new WebViewClient(){
#Override
public void onPageFinished(WebView view, String url) {
progressBar.setVisibility(View.GONE);
super.onPageFinished(view, url);
}
#Override
public void shouldOverrideUrlLoading(Webview view, String url){
progressBar.setProgress(0);
progressBar.setVisibility(View.VISIBLE);
return super.shouldOverrideUrlLoading(view,url);
}
})
webSettings.setJavaScriptEnabled(true);
web_view.loadUrl("http://someurl.com");
I have also done this:
#Override
public void shouldOverrideUrlLoading(Webview view, String url){
progressBar.setProgress(0);
progressBar.setVisibility(View.VISIBLE);
view.loadUrl(url);
return true;
}
but both of them result in '404 not found'.
Any help please..

Prepare the layout to show when an error occurred instead of Web Page (a dirty 'page not found message') The layout has one button, "RELOAD" with some guide messages.
If an error occurred, Remember using boolean and show the layout we prepare.
If user click "RELOAD" button, set mbErrorOccured to false. And Set mbReloadPressed to true.
if mbErrorOccured is false and mbReloadPressed is true, it means webview loaded page successfully. 'Cause if error occurred again, mbErrorOccured will be set true on onReceivedError(...)
Here is my full source. Check this out.
public class MyWebViewActivity extends ActionBarActivity implements OnClickListener {
private final String TAG = MyWebViewActivity.class.getSimpleName();
private WebView mWebView = null;
private final String URL = "http://www.google.com";
private LinearLayout mlLayoutRequestError = null;
private Handler mhErrorLayoutHide = null;
private boolean mbErrorOccured = false;
private boolean mbReloadPressed = false;
#SuppressLint("SetJavaScriptEnabled")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
((Button) findViewById(R.id.btnRetry)).setOnClickListener(this);
mlLayoutRequestError = (LinearLayout) findViewById(R.id.lLayoutRequestError);
mhErrorLayoutHide = getErrorLayoutHideHandler();
mWebView = (WebView) findViewById(R.id.webviewMain);
mWebView.setWebViewClient(new MyWebViewClient());
WebSettings settings = mWebView.getSettings();
settings.setJavaScriptEnabled(true);
mWebView.setWebChromeClient(getChromeClient());
mWebView.loadUrl(URL);
}
#Override
public boolean onSupportNavigateUp() {
return super.onSupportNavigateUp();
}
#Override
public void onClick(View v) {
int id = v.getId();
if (id == R.id.btnRetry) {
if (!mbErrorOccured) {
return;
}
mbReloadPressed = true;
mWebView.reload();
mbErrorOccured = false;
}
}
#Override
public void onBackPressed() {
if (mWebView.canGoBack()) {
mWebView.goBack();
return;
}
else {
finish();
}
super.onBackPressed();
}
class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public void onLoadResource(WebView view, String url) {
super.onLoadResource(view, url);
}
#Override
public void onPageFinished(WebView view, String url) {
if (mbErrorOccured == false && mbReloadPressed) {
hideErrorLayout();
mbReloadPressed = false;
}
super.onPageFinished(view, url);
}
#Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
mbErrorOccured = true;
showErrorLayout();
super.onReceivedError(view, errorCode, description, failingUrl);
}
}
private WebChromeClient getChromeClient() {
final ProgressDialog progressDialog = new ProgressDialog(MyWebViewActivity.this);
progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
progressDialog.setCancelable(false);
return new WebChromeClient() {
#Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
}
};
}
private void showErrorLayout() {
mlLayoutRequestError.setVisibility(View.VISIBLE);
}
private void hideErrorLayout() {
mhErrorLayoutHide.sendEmptyMessageDelayed(10000, 200);
}
private Handler getErrorLayoutHideHandler() {
return new Handler() {
#Override
public void handleMessage(Message msg) {
mlLayoutRequestError.setVisibility(View.GONE);
super.handleMessage(msg);
}
};
}
}

try this... this is the code from AS default webview activity, generated by AS.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.google);
initInstances();
WebView myWebView = (WebView) findViewById(R.id.webView1);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("http://www.google.com");
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.setWebViewClient(new WebViewClient());
}
sidenote :-->> iinitInstances() is referring to nagivation drawer on the left, could be ignored.

Java - WebView What event handles (watches) URL changes - Android

The app does a login to a web application using WebView. Once in the webview, the webview appears to handle everything for you as it should based on the user's clicks. However I need to review on each event if the URL changes to a specific logout URL.
How can I return the user to the app itself when the user logs out on the web application within the webview? I do not want the webview to stay as the active view.
I have tried WebViewClient.shouldOverrideUrlLoading and View.OnTouchListsner.
The class I tried to implement public but it didn't allow me.
class myWebClient extends WebViewClient
{
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
}
}
Here's the code before I want to call the method to check the URL;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final EditText phone = (EditText) findViewById(R.id.phone1);
final EditText login = (EditText) findViewById(R.id.uname);
final EditText pass = (EditText) findViewById(R.id.password);
phone.requestFocus();
final Context context = this;
submit = (Button)findViewById(R.id.submit);
sbutton = (Button)findViewById(R.id.loginCred);
chcred = (CheckBox) findViewById(R.id.cBox);
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient());
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
textstring(phone, login, pass);
encPhone = URLEncoder.encode(Phone);
encLogin = URLEncoder.encode(Login);
encPass = URLEncoder.encode(Pass);
if (chcred.isChecked()) {
SharedPreferences.Editor editor = getPreferences(MODE_PRIVATE).edit();
prefwrite(editor);
}
pushurl();
clear(phone, login, pass);
}
});
WebViewClient() //Right here is where I want to call it

This can help you:
https://developer.android.com/reference/android/webkit/WebViewClient.html#onPageStarted(android.webkit.WebView, java.lang.String, android.graphics.Bitmap)
The event does not notify you when the url changes, but does when the page starts to load, at that point you only need to verify the current url.

Try This
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
Uri uri = Uri.parse(url);
if (uri.getScheme().contains("google") || uri.getScheme().contains("tel")) {
try {
Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
if (intent.resolveActivity(getPackageManager()) != null)
startActivity(intent);
return true;
} catch (URISyntaxException use) {
Log.e("TAG", use.getMessage());
}
} else {
webview.loadUrl(url);
Log.e("url", url);
}
return true;
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
#Override
public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
super.doUpdateVisitedHistory(view, url, isReload);
String currentUrl=view.getUrl();
}
});
webView.loadUrl(url);
here webView is my WebView and url is the url which I am using in my webview.
If you want to make some changes with the change in url,then go for
#Override
public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
super.doUpdateVisitedHistory(view, url, isReload);
String currentUrl=view.getUrl();
}
you will get the url updation in this call.

Removing webview loader when loaded

I am trying to implement a webview loader, but once the page has loaded, the loader keeps showing:
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webcontent);
webView = (WebView) findViewById(R.id.webView);
final ProgressDialog progDailog = ProgressDialog.show(WebActivity.this, "Loading ","Please wait... ", true);
progDailog.setCancelable(false);
webView.setWebChromeClient(new WebChromeClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
progDailog.show();
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, final String url) {
progDailog.dismiss();
}
});
//webView = (WebView) findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.addJavascriptInterface(new WebAppInterface(this), "Android");
webView.loadDataWithBaseURL("www.example.com", null, "text/html", "UTF-8", null);
webView.loadUrl("www.example.com");
}
I believe "onPageFinished" should remove the loader once the page has loaded?
Thanks

Replace this:
webView.setWebChromeClient(new WebChromeClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
progDailog.show();
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, final String url) {
progDailog.dismiss();
}
});
by this:
webView.setWebViewClient(new WebViewClient(){
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progDailog.show();
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progDailog.dismiss();
}
});
It worked for me.

Android webview ajax

I have wep application which some pages have to do ajax requests to get and update that pages without refresh the page.
My problem when I use android WebView to load that wep application. all pages that request ajax doesn't update the page which means the ajax requests don't work.
here is the code of MainActivity.java
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview_layout);
webView = (WebView) findViewById(R.id.webView);
webView.clearCache(true);
webView.setWebChromeClient(new WebChromeClient() {
#Override
public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
Log.d(LOG_TAG, message);
new AlertDialog.Builder(view.getContext())
.setMessage(message).setCancelable(true).show();
result.confirm();
return true;
}
});
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
Toast.makeText(view.getContext(), "onPageStarted", Toast.LENGTH_SHORT).show();
super.onPageStarted(view, url, favicon); //To change body of generated methods, choose Tools | Templates.
}
#Override
public void onPageFinished(WebView view, String url) {
Toast.makeText(view.getContext(), "onPageFinished", Toast.LENGTH_SHORT).show();
super.onPageFinished(view, url); //To change body of generated methods, choose Tools | Templates.
}
});
WebSettings webSettings = webView.getSettings();
webSettings.setBuiltInZoomControls(true);
webSettings.setJavaScriptEnabled(true);
webSettings.setLoadWithOverviewMode(true);
webSettings.setAllowContentAccess(true);
webSettings.setUseWideViewPort(true);
webView.loadUrl("http://192.168.1.236:8080/mobile/android.html");
}
and the android.html have ajax request. the android application works fine and load the android.html but without getting the ajax data

Finally I've found the answer after 3 Long days.
the problem was in the page that I request which have this code:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
in the response which conflict with android webview and doesn't work with jquery selectors ... Don't know why!!!
but when I removed the above code from response the page and its ajax works fine.
P.S: all my pages are xhtml not html.

Check if you have <uses-permission android:name="android.permission.INTERNET" /> in your AppManifest.xml file.
If javascript in the loaded page makes requests to some site other than http://192.168.1.236:8080 and that site does not allow Cross-Origin XMLHTTPRequests, then these requests will fail due to security restrictions of WebView.

Try this
WebView web=(WebView) findViewById(R.id.webView1);
web.getSettings().setJavaScriptEnabled(true);

You can add AJAX handler into your web-view for handle any website with AJAX.
public class Main2Activity extends AppCompatActivity {
private WebView webView;
private ProgressBar progressBar;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
webView = (WebView) findViewById(R.id.webView);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
progressBar.setVisibility(View.GONE);
webView.getSettings().setJavaScriptEnabled(true);
initWebView();
loadURL();
}
private void loadURL() {
webView.loadUrl("www.google.com");
}
#SuppressLint("JavascriptInterface")
private void initWebView() {
webView.setWebChromeClient(new MyWebChromeClient(Main2Activity.this));
webView.addJavascriptInterface(new AjaxHandler(Main2Activity.this), "ajaxHandler");
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
progressBar.setVisibility(View.GONE);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
progressBar.setVisibility(View.VISIBLE);
}
#Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
super.onReceivedError(view, request, error);
progressBar.setVisibility(View.GONE);
}
});
}
public class AjaxHandler {
private static final String TAG = "AjaxHandler";
private final Context context;
public AjaxHandler(Context context) {
this.context = context;
}
public void ajaxBegin() {
Log.e(TAG, "AJAX Begin");
Toast.makeText(context, "AJAX Begin", Toast.LENGTH_SHORT).show();
}
public void ajaxDone() {
Log.e(TAG, "AJAX Done");
Toast.makeText(context, "AJAX Done", Toast.LENGTH_SHORT).show();
}
}
private class MyWebChromeClient extends WebChromeClient {
Context context;
public MyWebChromeClient(Context context) {
super();
this.context = context;
}
}
}

How do i make my progress dialog dismiss after webview is loaded?

What do I need to my code to make the dialog dismiss() after the webview is loaded?
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
CookieSyncManager.createInstance(this);
CookieSyncManager.getInstance().startSync();
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new homeClient());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setPluginsEnabled(true);
webview.loadUrl("http://google.com");
ProgressDialog pd = ProgressDialog.show(Home.this, "",
"Loading. Please wait...", true);
}
I've tried
public void onPageFinshed(WebView view, String url){
pd.dismiss();
}
Didn't work.

:o
webview.setWebViewClient(new homeClient()); homeClient()????
try this
...
...
...
webview = (WebView) findViewById(R.id.webview);
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
if (progressBar.isShowing()) {
progressBar.dismiss();
}
}
webview.loadUrl("http://www.google.com");
}
Update::
this is a good example.
Android WebView and the Indeterminant Progress Solution

This is OK.
public class WordActivity extends Activity {
private WebView webview;
private ProgressDialog progressDialog;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
Bundle objetbunble = this.getIntent().getExtras();
webview = (WebView) findViewById(R.id.webview);
final Activity activity = this;
webview.getSettings().setJavaScriptEnabled(true);
webview.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onLoadResource (WebView view, String url) {
if (progressDialog == null) {
progressDialog = new ProgressDialog(activity);
progressDialog.setMessage("Chargement en cours");
progressDialog.show();
}
}
public void onPageFinished(WebView view, String url) {
if (progressDialog.isShowing()) {
progressDialog.dismiss();
progressDialog = null;
}
}
});
webview.loadUrl("http://www.example.com");
}
}

#Jorgesys this is not 100% accurate. If you have several iframes in a page you will have multiple onPageFinished (and onPageStarted). And if you have several redirects it may also fail. This approach i think solves all the problems:
boolean loadingFinished = true;
boolean redirect = false;
mWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String urlNewString) {
if (!loadingFinished) {
redirect = true;
}
loadingFinished = false;
webView.loadUrl(urlNewString);
return true;
}
#Override
public void onPageStarted(WebView view, String url) {
loadingFinished = false;
//SHOW LOADING IF IT ISNT ALREADY VISIBLE
}
#Override
public void onPageFinished(WebView view, String url) {
if(!redirect){
loadingFinished = true;
}
if(loadingFinished && !redirect){
//HIDE LOADING IT HAS FINISHED
} else{
redirect = false;
}
}
});

How are you accessing pd in onPageFinshed()? (And are you sure it's actually called when the page loads?)
In your onCreate(), try passing pd to your homeClient so that homeClient can take care of dismissing the dialog.
Your homeClient should look like this:
private class homeClient extends WebViewClient {
private ProgressDialog pd;
public homeClient(ProgressDialog pd) {
this.pd = pd;
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished (WebView view, String url) {
if (pd.isShowing()) {
pd.dismiss();
}
}
}
In your onCreate():
ProgressDialog pd = ProgressDialog.show(Fbook.this, "",
"Loading. Please wait...", true);
webview.setWebViewClient(new homeClient(pd));

If you simply want to show Progress before webPage loading in WebView. You can simply request for Window Feature Progress like
getWindow().requestFeature(Window.FEATURE_PROGRESS);
before setContentView(R.layout.blahblah);
and show it progress in onProgressChanged like
final Activity context= this;
webview.setWebChromeClient(new WebChromeClient()
{
public void onProgressChanged(WebView webView, int progress)
{
activity.setProgress(progress * 1000);
}
});
And if you want to add you own ProgressDialog then use WebviewClient
webView.setWebViewClient(new WebViewClient() {
ProgressDialog rogressDialog ;
#Override
public void onPageStarted(WebView view, String url, Bitmap bitmap) {
progressDialog = ProgressDialog.show(context, "Loading...", "Please wait...");//where context = YourActivity.this;
super.onPageStarted(view, url, bitmap);
}
#Override
public void onPageFinished(WebView view, String url) {
progressDialog .dismiss();
super.onPageFinished(view, url);
}
});
webView.loadUrl(url);

wv1.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(Entertainment.this, description, Toast.LENGTH_SHORT).show();
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon)
{
progressDialog.show();
}
#Override
public void onPageFinished(WebView view, String url) {
progressDialog.dismiss();
String webUrl = wv1.getUrl();
}
});
wv1.loadUrl(url);
The above code will show a progress dialogue for every incoming link you navigate to the in webview.