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opening link in external browser from page in WebView

I'm developing an angular website which is loading in an app from a WebView, and there is only one of the links in it that has to be opened outside of the app (external browser)
I need a way to handle this from JavaScript not putting extra work to the android side.
and i have already tried some ways including:
window.open("url","_system")
(navigator as any).app.loadUrl("http://google.com", {openExternal : true});

Well, there is no such thing
instead it must be handled from android application code. you can add a parameter to the url when u need it to open in external browser, ( here it is external=true ) and then check for that parameter in your webview url loading as below:
webView.setWebViewClient(new WebViewClient(){
#RequiresApi(api = Build.VERSION_CODES.N)
#Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
if((String.valueOf(request.getUrl())).contains("external=true")) {
Intent intent = new Intent(Intent.ACTION_VIEW, request.getUrl());
view.getContext().startActivity(intent);
return true;
} else {
view.loadUrl(String.valueOf(request.getUrl()));
}
return true;
}
});

Dynamic content of Web Page not loaded totally using Htmlunit WebClient

I am trying to load web page (https://genpact.taleo.net/careersection/sgy_external_career_section/jobsearch.ftl?lang=en) for scraping using HtmlUnit WebClient. But the content is not being loaded properly. For example, i am unable to find the Apply buttons.
My webclient code is as below
webClient.setCssErrorHandler(new DefaultCssErrorHandler());
webClient.setJavaScriptErrorListener(new DefaultJavaScriptErrorListener());
webClient.setAjaxController(new NicelyResynchronizingAjaxController());
webClient.getCookieManager().setCookiesEnabled(true);
webClient.waitForBackgroundJavaScript(60000);
Can someone please help me with this

This works for me
public static void main(String[] args) throws IOException{
final String url = "https://genpact.taleo.net/careersection/sgy_external_career_section/jobsearch.ftl?lang=en";
try (final WebClient webClient = new WebClient(BrowserVersion.FIREFOX_60)) {
HtmlPage page = webClient.getPage(url);
// waitForBackgroundJavaScript has to be called after every action
// this page is really slow wait for the last part of the dynamic content
while(!page.asText().contains("Previous\r\n1\r\n2\r\n3\r\n4\r\n")) {
webClient.waitForBackgroundJavaScript(1_000);
}
System.out.println("-------------------------------------------------------------------------------");
System.out.println(page.asText());
System.out.println("-------------------------------------------------------------------------------");
}
}

How to close webview in mobile android/iOs(Native app)

In our app have opening one url in webview there is way to close webview after some specific url detect.
how can possible to close webview ? I have try with window.close() in javascript.but could not work.have another way from android or ios app.

As per comments on question, I am putting a better term for closing the web view - going back to previous screen. You can do this as follows for Android and iOS :
Android :
finish()
iOS :
If you are using navigation controller :
self.navigationController?.popViewController(animated: true)
If you are presenting web view controller :
self.dismiss(animated: true, completion: nil)
The key is to check that url in the delegate function of web view.
Android :
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.equals("your_url")) {
finish()
return false;
} else {
return true;
}
}
iOS :
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if request.url?.absoluteString == "your_url" {
self.navigationController?.popViewController(animated: true)
// If controller is presented - self.dismiss(animated: true, completion: nil)
return false
}
return true
}

You can use shouldOverrideUrlLoading
Give the host application a chance to take over the control when a new url is about to be loaded in the current WebView. If WebViewClient is not provided, by default WebView will ask Activity Manager to choose the proper handler for the url. If WebViewClient is provided, return true means the host application handles the url, while return false means the current WebView handles the url.
Notes:
This method is not called for requests using the POST "method".
This method is also called for subframes with non-http schemes, thus it is strongly disadvised to unconditionally call loadUrl(String) with the request's url from inside the method and then return true, as this will make WebView to attempt loading a non-http url, and thus fail.
Here is the sample demo
public class MainActivity extends AppCompatActivity {
WebView myWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = findViewById(R.id.myWebView);
myWebView.setWebViewClient(new MyWebViewClient());
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("https://stackoverflow.com/users/7666442/nilesh-rathod?tab=topactivity");
}
public class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.equals("https://stackoverflow.com/users/7666442/nilesh-rathod?tab=profile")) {
finish() ;
Toast.makeText(MainActivity.this, "URL DETECTED", Toast.LENGTH_SHORT).show();
// perform your action here
return true;
} else {
view.loadUrl(url);
return true;
}
}
}
}

In iOS you would now be using Safari sfview so directly picking up a URL is blocked for security hence the only universal solution you can apply in both Android and iOS apps is deep linking.
You can trigger to close the safari sf view when you reach that specific URL using deep link.
Google deep link and follow the examples.

Use this can help you
myWebView.destroy();
myWebView = null;

Blank page when trying to do a facebook login inside an android webview app

I developed an android webview application, and everything is workong fine. But inside the website you can login via a facebook button, which is working in all browsers, but not inside the webview app. Just when I click the facebook login button a blank page appears.
Others have quite similar problems like me, but they can load the facebook page instead of me.
I also tried it with these adds:
myWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
and
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
CookieManager.getInstance().setAcceptThirdPartyCookies(myWebView, true);
}
I also want it to open internal, and then redirect automatically to my website's login page.
EDIT:
Maybe I should also say that the facebook login page opens with a popup and that seems to be a problem.

Try to change the your code same as following
public class MainActivity extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView htmlWebView = (WebView)findViewById(R.id.webView);
htmlWebView.setWebViewClient(new CustomWebViewClient());
WebSettings webSetting = htmlWebView.getSettings();
webSetting.setJavaScriptEnabled(true);
webSetting.setDisplayZoomControls(true);
htmlWebView.loadUrl("https://inducesmile.com/blog");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class CustomWebViewClient extends WebViewClient{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
}

Try something like below code. You will get error response and you will get to know about the problem.
private void load webPage(){
private WebView mWebview=null ;
mWebview = new WebView(this);
mWebview.getSettings().setJavaScriptEnabled(true); // enable javascript
final Activity activity = this;
mWebview.setWebViewClient(new WebViewClient() {
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(getApplicationContext(), description, Toast.LENGTH_SHORT).show();
}
});
mWebview.loadUrl("YOUR URL");
setContentView(mWebview );
}
}

We just changed the facebook login site, it wont now appear inside a pop-up. Bute theres is still a small problem, afte you login in facebook it brings you back to the main login site. It seems that the login wasnt successfull, but it is. you have to go to the main site for example to see that you are logged in. Maybe someone knows why?

Android Web-view Error I/chromium: [INFO:CONSOLE(1)] "Uncaught ReferenceError:

I have a web-service In that I have added bar-code reader for android
So with the Help of JavaScript I am calling my bar-code reader from web-view
So for that I followed this
and designed on server side...
I have Given this
at JavaScript
function mybarcd() {
MyApp.mybarcdt();
}
function actfromAnd(msg){
document.getElementById("brcd").value = msg;
}
at HTML/PHP
<div class="data">
<input id="brcd" type="text" value=""/>
<button type="button" onClick="mybarcd()">SCAN</button>
</div>
On Android side
In webview
webView.addJavascriptInterface(new WebAppInterface(this), "MyApp");
and new js interface
#JavascriptInterface
public void mybarcdt() {
IntentIntegrator intentIntegrator = new IntentIntegrator(Main_A.this);
intentIntegrator.setBeepEnabled(true);
intentIntegrator.setOrientationLocked(true);
intentIntegrator.setPrompt("Scan Barcode");
intentIntegrator.initiateScan();
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if (result != null) {
if (result.getContents() == null) {
Log.d("ScanActivity", "Cancelled scan");
Toast.makeText(this, "Cancelled", Toast.LENGTH_LONG).show();
} else {
Log.d("ScanActivity", "Scanned");
String bcval = result.getContents();
if (android.os.Build.VERSION.SDK_INT < 19) {
webView.loadUrl("javascript:actfromAnd(\""+bcval+"\")");
}else{
webView.evaluateJavascript("javascript:actfromAnd(\""+bcval+"\")", null);
}
System.out.println("javascript:actfromAnd(\""+bcval+"\")");
}
} else
super.onActivityResult(requestCode, resultCode, data);
}
My Problem is that Its working fine in a single Html/PHP file with Js on same page or separate page I have tested its scanning and Updating the value in input box...
But its not working since I have using multiple pages or frame in one webview...
its missing JS value... How ever form server its opening scanner at on-click... but after scanning the value is not passing to the input box with JS I am getting this error.....
I/chromium: [INFO:CONSOLE(1)] "Uncaught ReferenceError: actfromAnd is not defined", source: (1)
Update
1)I hava Tried this in Static Page with JS in side that PHP/HTML page
2)I also tried with same in a static Page with JS seperate page
On the above two conditions its worked fine
But In my web-service I have Given Same JS file which is running successfully in Static page I have a single JS file for My Webservice and Static page its working fine in static but not working in MY webservice live.. How ever JS is loading Because on click its wokring from that JS and its opening Camera
But responce after scanning its not going to web input
I understand that I am getting Error Because...
In my Live Page I have a MainMenu Inside that menu when I select a application its loading in iframe So my Android Activity responce after scanning Is pinging to that Mainmenu page But for menu there is no Js function named actfromAnd So I am getting Error...
Here I can't give URL of that particular page(iframe) Because of depending on the menus it will change I can Give Only Login or MainMenu link directly.but not for a particular page inside the menu
Can Any one suggest me on this kind...

Add this script in Web-service at your Parent Menu which has your iframe or iframes
<script>
function actfromAnd(msg){
window.frames['yourExactframe'].document.getElementById("brcd").value = msg;
}
</script>
If you are using same in more than one frame then declare your frame name globally
I tried your Code Working Fine... In my example Frame Hope It works fine for you
Nice question....

You should execute the javascript when the page is loaded
mWebView.setWebViewClient(new WebViewClient() {
#Override
public void onPageFinished(WebView view, String url) {
webview.loadUrl("javascript:myFunction()");
}
});
The code will be executed and will find your javascript function. The way you are doing now does not wait.