In my application I need to detect the link click inside the webview.
I use the following code
web = (WebView)findViewById(R.id.webView1);
web.getSettings().setJavaScriptEnabled(true);
web.setWebViewClient(new VideoWebViewClient());
web.loadUrl("http://syncquik.com/home.php");
class VideoWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
System.out.println("link===="+url);
view.loadUrl(url);
return false;
}
But shouldOverrideUrlLoading(WebView view, String url) method is not called when web.getSettings().setJavaScriptEnabled(true); is written. But if I don't write web.getSettings().setJavaScriptEnabled(true); then shouldOverrideUrlLoading(WebView view, String url) is called and link is detected.
I need both of this two, need to enable javascript and detect the link click.
Please help me to figure out this.
Santanu
It works on my project, maybe you should try to clean your project and try again by Project --> Clean
Related
I displaying the content in the webview. Content is loaded from the server API. Content can contain following links:
Register
How can i catch click on the #register.
I can do it with some HTML parser and append onClick event, but much better and easier will be to catch URL change to #register.
Many thanks for any advice.
Edit:
I tried the following example but without the luck
browser = (WebView) view.findViewById(R.id.intro_browser);
// Set Chrome instead of the standard WebView
browser.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url){
Logger.d("TEST");
return true;
}
#Override
public void onLoadResource(WebView view, String url) {
Logger.d("URL IS:");
Logger.d(url);
if (url.startsWith("app://")) {
}
}
});
browser.getSettings().setJavaScriptEnabled(true);
browser.addJavascriptInterface(new WebViewJavaScriptInterface(getContext()),
Constants.Welcome.JAVASCRIPT_NAMESPACE);
//browser.getSettings().setAllowFileAccessFromFileURLs(true);
//browser.getSettings().setAllowUniversalAccessFromFileURLs(true);
browser.loadData(htmlContent, Constants.Welcome.MIME_TYPE, Constants.Welcome.ENCODING);
You need to create custom WebViewClient:
public class CustomWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
boolean result = false;
if (Objects.equal(url, "#register")) {
result = true;
//Do what you want here
}
return result;
}
}
and then you need to give it to WebView:
webView.setWebViewClient(new CustomWebViewClient());
returning true in shouldOverrideUrlLoading means that you handled the Url while returning false means that WebView should handle it.
Add an intent filter in your manifest so that links starting with "yourapp://" or something similar will launch your app.
If you are generating the web content, then generate links for your app.
Register
If you are not generating the content, then use webview.load("javascript:// code to replace register links to yourapp://").
I have two activity, one main activity(A) is an CordovaActivity, then I use intent to start another activity(B), in B i have an WebView(not CordovaActivity), and after I use this webview to load a simple webpage (alert something), I found the js code is not executed at all, even if I enable javascript by calling setttings.setJsenabel(true);
I start activity B from A
Load Url from webview in Activity B
simple web page
in the device, it does not alert anything
However, if I change the webview to CordovaWebView instead of the original Android native one, it works.....
That's because plain WebView doesn't support showing alerts by itself. You need to provide a WebChromeClient to it that implements WebChromeClient.onJsAlert method. For example:
mywebView.setWebChromeClient(new WebChromeClient() {
#Override
public boolean onJsAlert(
WebView view, String url, String message, final JsResult result) {
new AlertDialog.Builder(view.getContext())
.setTitle("Alert")
.setMessage(message)
.setPositiveButton("Ok",
new AlertDialog.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
result.confirm();
}
}).setCancelable(false).create().show();
return true;
}
});
First of all , this post may ,look like a Possible Duplicate of other question, but I have go through many questions but found them not helpful.
Now My problem is that I am loading an URL in my Webview and then I want to Trace URL on each event on webview so I have set up WebviewClient for Webview and overridden shouldoverrideurlloading method, but after first Event , shouldoverrideurlloading not getting called. (worked first time)
Here is the Code I have used :
wvSecurity = (WebView) findViewById(R.id.wvSecurity);
wvSecurity.getSettings().setJavaScriptEnabled(true);
wvSecurity.getSettings().setAllowContentAccess(true);
wvSecurity.getSettings().setAllowUniversalAccessFromFileURLs(true);
wvSecurity.getSettings().setBuiltInZoomControls(false);
wvSecurity.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
wvSecurity.getSettings().setLoadWithOverviewMode(true);
wvSecurity.getSettings().setDomStorageEnabled(true);
wvSecurity.loadUrl("URL");
wvSecurity.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view,
final String urlStr) {
Log.i("URL", "::" + urlStr);
return false;
}
}
EDIT ::
Ok, The URL which I want to Trace uses POST method , Now my question is How can I trace POST URL and its data. And one thing , I dont have access to Webpage coming in so I simply cant go for GET method. Please Help !!!
I guess this method gets called when a hyperlink is tapped from page or some redirection happens. So make sure this thing.
I think you need to pass the url in place on "URL" so this will solve your problem.
wvSecurity = (WebView) findViewById(R.id.wvSecurity);
wvSecurity.getSettings().setJavaScriptEnabled(true);
wvSecurity.getSettings().setAllowContentAccess(true);
wvSecurity.getSettings().setAllowUniversalAccessFromFileURLs(true);
wvSecurity.getSettings().setBuiltInZoomControls(false);
wvSecurity.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
wvSecurity.getSettings().setLoadWithOverviewMode(true);
wvSecurity.getSettings().setDomStorageEnabled(true);
wvSecurity.loadUrl("http://www.google.com");
wvSecurity.setWebViewClient(new HelloWebViewClient());
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
System.out.println("URL :: " + url);
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, final String url) {
}
}
This question already has an answer here:
Read HTML content of webview widgets
(1 answer)
Closed 9 years ago.
I have something like this
final WebView w=(WebView)findViewById(R.id.webView1);
w.loadUrl("http://somepage.com");
Is there any way to get the html page that is shown in the WebView at some moment of time ?
I want to get this html page as string variable.
The point is I want to get the html code after the javascript is executed on a client side...
any guidelines ?
One way I know;
decleration javascript handler in your activity
class LoadListener{
public void processHTML(String html)
{
Log.e("result",html);
}
}
after configure your webview;
webView.getSettings().setJavaScriptEnabled(true);
webView.addJavascriptInterface(new LoadListener(), "HTMLOUT");
than webview client;
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return true;
}
#Override
public void onPageStarted(WebView view, String url,
Bitmap favicon) {
}
public void onPageFinished(WebView view, String url) {
view.loadUrl("javascript:window.HTMLOUT.processHTML('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
}
});
One way to get the code is by using the HttpClient as given here. Another solution is given in the following blog.
So, reading around i read that i could "inject" javascript into a loaded webpage to programatically fill a website's form, so i tried the following:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
WebView WebView;
WebView = (WebView) findViewById(R.id.webview);
WebView.setWebViewClient(new HelloWebViewClient());
WebView.getSettings().setJavaScriptEnabled(true);
WebView.getSettings().setBlockNetworkImage(false);
WebView.loadUrl("http://www.kingsage.es");
String username = "XXX";
String Password = "YYY";
WebView.loadUrl("javascript:document.getElementById('login_player').value='"+username+"';javascript:document.getElementById('login_passwd').value = '"+Password+"';");
}
However, when i run this on the emulator i get an error as if the website could not be found. if i turn off the second loadUrl method i load the website, but i need to fill the login form programatically!, i figure i am doing something wrong but i haven't found and answer reading around. Any help would be appreciated!!
you need to wait until the webpage is loaded (use WebViewClient) then execute your javascript
webView.setWebViewClient(new WebViewClient(){
#Override
public void onPageFinished (WebView webView, String url)
{
webView.loadUrl("javascript:document.getElementById('login_player').value='"+username+"';javascript:document.getElementById('login_passwd').value = '"+Password+"';");
}
});
make also sure that you execute only once, not on every onPageFinished Event
I like JeanLuc's suggestion and it worked for me 98% of the way. I still needed to automatically log the user into the web page once their username and password had been entered so I did the following and its worked well, except for trying to remove the "do you want to remember the password' message.
#Override
public void onPageFinished (WebView webView, String url)
{
webView.loadUrl("javascript:document.getElementById('Login1_UserName').value='"+userName+"';javascript:document.getElementById('Login1_Password').value = '"+password+"';");
webView.loadUrl("javascript:document.getElementById('Login1_LoginButton').click();");
}
The second line selected the 'login' button and logged them in automatically. Hope it helps someone else.
Here is how I acheived it in my scenario where I had to browse a page, fill text boxes and submit.
WebView webView = FindViewById<WebView>(Resource.Id.webEspView);
webView.SetWebViewClient(new Client());
webView.Settings.JavaScriptEnabled = true;
webView.LoadUrl("http://192.168.4.1")
Then added the Client class and overloaded onPageFinished() method.
public class Client : WebViewClient
{
public override void OnPageFinished(WebView view, string url)
{
base.OnPageFinished(view, url);
string ssid = Variables.GetInitialUsername();
ssid = ssid.Trim(new char[] {'\"'});
string pass = Variables.GetInitialPassword();
var script = $"document.getElementById(\"clientId\").value = \"{ssid}\";" +
$"document.getElementById(\"branchId\").value = \"{pass}\";" +
"document.querySelector('button[type=\"submit\"]').click()";
view.LoadUrl($"javascript: {script}");
}
}
Hope it helps.