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Pdf file is not able to load in android webview but able to load in external browser

I have the webpage created with angular js file. There are pdf files inside the webpage we want to download and show.
when clicking the pdf file, it just show loading and nth happened. Also shouldOverrideUrlLoading method is never called. This method is not deprecated.
We tried to load the url in external browser and open the pdf, it successfully download and open the pdf file.
I would like to know is there any webview setting I missed out?
current webview settings in my implementation is as below . Kindly help. thank you
webView?.settings?.builtInZoomControls = true
webView?.settings?.domStorageEnabled = true
webView?.settings?.allowFileAccess = true
webView?.settings?.allowContentAccess = true

You should try this one might be it work by WebViewClient.
Check out this -- https://stackoverflow.com/a/14201778/18858169

PDF is a file format NOT handled by WebView, it's designed to show web content, not some documents
if you really want to show PDF inside WebView then you should use some web application, which can take a PDF file (or URL pointing on some) and render content of your file in a "web way", thus WebView could print it
for example Google have such web app and you can open PDFs in it using some of below URLs (these may changed)
https://docs.google.com/viewer?url=http://customdomain.com/pdffile.pdf
https://docs.google.com/gview?embedded=true&url=http://customdomain.com/pdffile.pdf
https://drive.google.com/viewerng/viewer?embedded=true&url=http://customdomain.com/pdffile.pdf
note that you are basing on 3rd-party service - your PDF may be online, but 3rd-party companys server-side may be down or changed routing and your hardcoded URL prefix stop working
and if you want to show "real" PDF then use PdfRenderer class, which will give you a set of Bitmaps, which can be shown with ImageView, no WebView needed

android webview load html from server and other files from assets

im a new android developer.
My app has WebView which loads lot of data from my site (which has pics, css, JS files).only the html code is updated weekly. other files are almost never changed. so i was thinking of including these static files in android assets, loading only the html from server and other files from assets and cutting down the loading time. how do i do it.
Android WebView Javascript from assets
and as shown in the above solution i cant change the html code to load these from assets because this site will also be accessed by web users.
Is there a way to do this. Thanks in advance..

Firstly you need to have relative paths
<img src="images/someimage.png">
not
<img src="www.mysite.com/images/someimage.png">
Then you need to load the HTML code not using webBrowser, for example like here
And then you can load HTML source into WebBrowser using base URL pointing to your assets like here

Android displaying html file with pictures and without internet connections

I would like to load a html file (with pictures and videos) on a Android tablet, however, there is no internet connection, thus I cannot use url for the pictures and stuff....
Is there any free web servers that allow me to do so (displaying the web content at local host)?
Or is there any way I can do it by writing a android app for it?
Thanks!!

Webview's LoadURL method can take local content. using the file uri retrieving the content from your assets and render it that way. Assuming you follow the standard folder structure for a basic HTML website.
And why would you want to ask about "free web servers" if you don't even have a internet connection... All the content has to be loaded locally on the app or downloaded on the fly (assuming you don't download too much.. if its too much then you are better off packaging it in the app).

Without Internet your html page is static page.
You can store the html file in your local assets folder then:
url = "file:///android_asset/" + mName + ".html";
mWebView.loadUrl(url);
and if you also want to show the images in your web page change the source path of images in source code of html page to local folder and pate all the images to that folder.

How to display PDF in webview from assets folder android

I surfed a lot for this solution but everywhere I got same solution i.e. either use Intent and pass it to default/installed PdfReader applications, Other one is to use gview from googleDocs to load Pdfs online.
But my question is how can view my pdf offline in webview i.e. if user click on list of pdf in my application don't go to other application or google/gview .
I tried passing assets folder path but not working getting message in webview that "webpage is temporarily down or move permanently."
I also tried this link.. which describes to use pdfViewver.jar but that lib. has it's own issues that needs to be fixed.
any help will highly appreciated

But my question is how can view my pdf offline in webview
You can't. WebView cannot display PDFs on its own.

HTML embeded in android

i have try to load swf in android.i use this :
but,i think that this is recommend to store SDCARD first and trying to display?
my question is, my point of view is correct or wrong?
i have try by android_asset but not get success.

First of all, I think you should use webview control to load SWF file. (if you have not done above).
Using webview, You can load swf file in any of following way,
Android Asset.
From SD Card.
URL from web.