Develop Reference

How to handle which tab is opened by default when loading an HTML in a WebView?

I want to load an HTML in a webview in my application that contains multiple tabs, something similar to this : https://www.w3schools.com/w3css/tryit.asp?filename=tryw3css_tabulators
In my code I simply take to html text and load it in the webview:
webView.setBackgroundColor(getColor(transparent));
webView.getSettings().setJavaScriptEnabled(true);
webView.loadData(htmlContent, MIME_TYPE, null);
How can I handle in code so that one specific tab to be open by default when we first enter the page?

After loading the content you can execute Javascript in the WebView like
webView.loadUrl("javascript:openCity('Paris');");
or with Kitkat and up
webView.evaluateJavascript("openCity('Paris');", null);

Android open pdf file from Url and diaplay in web view?

I know this question has been asked so many time , but i didn't get any proper and satisfactory solution. I want to show the Pdf file in web view , which is coming from the url ,when i click on the URL , my pdf downloads. Currently i am usinghtml following code for showing pdf file in web view , but it is opening the html file. I am getting stuck in this since 4 hours.Kindly suggest me where i am doing wrong.
Thanks in advance.
mWebview.getSettings().setJavaScriptEnabled(true);
WebSettings settings = mWebview.getSettings();
settings.setDefaultTextEncodingName("utf-8");
mWebview.loadData(response, "application/pdf; charset=utf-8",null);
i have following response coming in following format :-
**%PDF-1.4%���5 0 obj<</E 74937/H [ 1453 173 ]/L 75330/Linearized 1/N 1/O 8/T 75180>>**

I want to show the Pdf file in web view
WebView does not have a PDF renderer.
Kindly suggest me where i am doing wrong.
You are attempting to load a PDF directly into a WebView. Use something else to render the PDF.

For show pdf in webview use Direct url:
https://docs.google.com/gview?embedded=true&url="PDF_FILE_URL"
Now load above url in webview.
mWebview.loadUrl("https://docs.google.com/gview?embedded=true&url="PDF_FILE_URL"");

Android webview can not load web pages

I can not load web pages using webview,Nothing is displayed，
this url "http://dev.51yunche.com:7000/WeChat/Service%20introduce.html",
this is my webview
webView = (WebView) findViewById(R.id.drive_web);
webView.setWebViewClient(new WebViewClient());
webview.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAppCacheEnabled(true);
webView.getSettings().setDomStorageEnabled(true);//DOM Storage
webView.loadUrl("http://dev.51yunche.com:7000/WeChat/Service%20introduce.html");
this xml:
<WebView
android:id="#+id/drive_web"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
The console does not have any prompts or error messages。I'd like to hear some input from more experienced WebView users (and developers?).
Thank you in advance!

This is not webview Issue.In web browser also that url display Nothing.check that Backend or design code of your html file.

You have a space encoded character %20 in your URL...
use a valid url like:
webView.loadUrl("http://dev.51yunche.com:7000/WeChat/Serviceintroduce.html");
Alternatively you can also try URLEncoder.encode(YOUR_URL); function to encode the Url

Your link itself doesn't display anything in web browser. If you still have any doubt, just simply create a normal html page by yourself and run it from your local system and check it out.

Setting Link To Open In App

I am developing an Android application which uses WebView, and I would like to open a link in the app. The problem I have come across is that each of our customers use a different URL and is set via a preference in the android application. From, what I understand you have to set a link in the android manifest. Is this still achievable to have a link open in the application?

In order to open a link in the app just make sure to have an Activity that has a WebView on its layout. Then, in your activity do something like this:
WebView webview = (WebView) findViewById(R.id.your_web_view);
webview.loadUrl("http://your.url/");
Just read the user preference that stores the URL before calling loadUrl() and you're all set

You need to add a webview and give it an id. And then do this in your code:
//Identify the webview
WebView web_view = (WebView)findViewById(R.id.web_view);
//start web client
web_view.setWebViewClient(new WebViewClient());
//Load URL
web_view.loadUrl("your url");
And don't forget to add this line in your AndroidManifest.xml file :
<uses-permission android:name="android.permission.INTERNET" />
Hope it works!! :)

passing data from javaclass to html webview

I'm using a webview in my app.
now what I want to do is to pass the data from my javaclass to html.
fro example I have a textview in my android javaclass and when I hit the button send the webview will show with html saying Hi + the name that I input in textview.
is it possible?

Check Using WebViews may be it will help

You can generate your html and then load it to WebView using loadData method for example.
Or you can use addJavascriptInterface to invoke methods of some Java object from javaScript code in WebView

See below code
WebView webview = (WebView) findViewById(R.id.webview);
webview.loadUrl("http://www.xxx.com/web/apps/jots.do");