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When is shouldOverrideUrlLoading method called?
webView.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
}
});
webView.loadUrl( "file:///android_asset/html/index.html");
Any reference? I didn't find one. Thanks
762
shouldOverrideUrlLoading is called when a new page is about to be opened whereas shouldInterceptRequest is called each time a resource is loaded like a css file, a js file etc.
Android WebView is used to display HTML in an android app. We can use android WebView to load HTML page into android app.
WebViewClient is the object responsible for most the actions inside a WebView. JavaScript enabled, security, routing, etc. You can make a custom one, as well as use a Chrome one.
Android WebView is a system component for the Android operating system (OS) that allows Android apps to display content from the web directly inside an application.
To support all Android versions, one has to implement both callbacks. I filed a bug (with documentation) to Chromium: bugs.chromium.org/p/chromium/issues/detail?id=1064537 Just add androidx.webkit:webkit:1.4.0 as dependency and use WebViewClientCompat. That way, you only need to override the method once.
Add webView.getSetting ().setMixedContentMode (WebSettings.MIXED_CONTENT_ALWAYS_ALLOW); then shouldOverrideUrl will be triggered. onProgressChanged is always triggered when reloading, loading new page with userclick or XmlHttpRequest. Compare the URL of previous load and the current load, you'll know it's reloading or loading a new page.
For example, if you implement callbacks such as shouldOverrideUrlLoading () or shouldInterceptRequest (), then WebView invokes them only for valid URLs. But still doesnt make sense since the above url is generic and should meet the standard. Any alternative or solution to this? Anything special about the URL, like is the request using post method?
WebView browser = (WebView) findViewById(R.id.webview); In order to load a web url into the WebView, you need to call a method loadUrl(String url) of the WebView class, specifying the required url.
It does however, get called when the WebView to load a different URL from the one the user had requested.
Calling loadUrl() will also trigger the shouldOverrideUrlLoading() method. (Only when a new url is about to be loaded.)
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.
Ref : public boolean shouldOverrideUrlLoading (WebView view, String url)
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