Develop Reference

Detect URL changes in Webview android

I am using android webview and loading an url. Inside the webview, there are certain click events and on clicking , the UI inside webview is changed. I am not getting any callback in shouldOverrideUrlLoading(...). Is there a way to detect the changes inside webview in android?
The shouldOverrideUrlLoading() is called only when baseUrl changes.

The onPageFinished(WebView view, String url) method is called when every url changes and loads. The Url can be parsed to find out the change.

Prevent link to be opened in external browser with WebChromeClient

I've developed a small group of .html pages that are stored in a server.
My android app, using a webview with: setWebChromeClient loads these pages.
minSdkVersion 19
targetSdkVersion 24
The problem:
Everytime I need to load a new page, using a link in my .html page, the new page is opened in an external browser.
Url Overriding
I know about the shouldOverrideUrlLoading() method, when we're using the setWebViewClient().
But unfortunately I can't use the normal webview. I need to use the WebChromeClient() because of some feature that only work with this one. (Like the input file)
My doubt is...
How can I override my URL to force them to load inside of the webChromeClient?
I tried this but with no luck:
webView.setWebChromeClient(new WebChromeClient() {
// (...)
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});

You can use following code to achieve this.
WebView web = (WebView)findViewById(R.id.web);
WebSettings webSettings = web.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setSupportMultipleWindows(true); // This forces ChromeClient enabled.
web.setWebChromeClient(new WebChromeClient(){
#Override
public void onReceivedTitle(WebView view, String title) {
getWindow().setTitle(title); //Set Activity tile to page title.
}
});
web.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
});

I was using an embedded mobile web application in an Android App making use of the WebChromeClient class and did not want to fiddle around with recompiling the APK.
While looking for the easiest header(); solution (since the mobile web application is in php) I found out that using:
header("Location: url.php", TRUE, 307);
was a quick fix solution without recompiling the Android app.
This allowed the user to re-direct within the app without calling the web browser externally from my app.
Here is the link to the answer by Arindam Nayak where I got the idea from.

How to set webviewClient for webView dynamically?

For instance, there is a WebView component in my fragment. I use it to load all webpages by the different urls, sort of stupid but efficient. As you know, we specify our webviewclient (like WvjbWebViewClient or jsBridge) to handle all requests. Now that we want to load third-platform websites with our WebView sometimes, however, we don't want to supply our business function for them, not for anything else, but for our safety of communication.
Our company domain is xxx.com. What I want to do is: when the webview loads those webpages on this domain, use our customer WebViewClient, otherwise use a simple WebViewClient(new a instance). How to resolve it? (Should we consider url redirection?)

WebViewClient allows you to upload any specified URL, selected in the WebView, in WebView itself, and do not run the browser. For this functionality meets shouldOverrideUrlLoading(WebView, String) method. If it returns true - we do not need to launch a third-party browser, and upload their own content here.
Here is an example where we choose if we can open the content in our app, or we need to open browser:
public class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(Uri.parse(url).getHost().endsWith("xxx.com")) {
return false;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
view.getContext().startActivity(intent);
return true;
}
}
This can help if think.

Is shouldOverrideUrlLoading called for links within the same domain?

I have a hybrid application where I have a WebView which is implementing the shouldOverrideUrlLoading method (both the deprecated and the newest version). This should take over control before loading any external links or certain links within my domain. Without going into specifics, the code looks roughtly like this:
private WebView mWebView;
mWebView.setWebViewClient(new myWebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.isExternal() || url.contains("#specialCase")) {
// Do actions
return true;
}
return super.shouldOverrideUrlLoading(view, url);
}
});
I have noticed that all external links work properly, however shouldOverrideUrlLoading is not being called at all when the link is within my domain, so there is no way for me to detect those cases where I want to take over control.
The android documentation states
Give the host application a chance to take over the control when a new
url is about to be loaded in the current WebView.
Does that new mean different domain? Is there anything I am missing or doing wrong? Any ideas on how to detect the user has clicked a link pointing to the same domain?
Thank you in advance.

Finally found the reason why shouldOverrideUrlLoading was never been called.
Apparently the method is only called when the actual loading is about to start. Our web application is a single-page application, hence even though the URL changes, no new page is loaded and shouldOverrideUrlLoading is not called.

android - Capture same page redirection in webview

I have an Activity in my app which has a Webview in it which opens a URL provided to it and is then redirected to the landing page of the website. The issue I'm facing is once the user is on landing page the redirection is same page redirection i.e. if the landing page is
www.example.com/landing
The redirection is
www.example.com/landing/#other_page
Which does not call the
onPageStarted(WebView view, String url, Bitmap favicon)
of the webview, but
onPageFinished(WebView view, String url)
is called.
Is there a way to track when the redirect is starting to load since I need to log the time required to load a page even if the page is same page redirection.
Thanks in advance!
Edit: According to the documentation:
onPageStarted will not be called when the contents of an embedded frame changes, i.e. clicking a link whose target is an iframe, it will also not be called for fragment navigations (navigations to #fragment_id).
Which is exactly my case. Is there any other way to track the start and end of loading of fragment navigation?

I think you are looking for that method
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d("Webview", url);
return false;
}
});