Develop Reference

android webView autofill username and password not working

I am passing username and password to the activity with webView. The problem is url loading is successful but i want to fill(autofill) username and password. I am a beginner, please help or give me any suitable github link.
WebSettings webSettings = superWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
superWebView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
view.loadUrl("javascript:document.getElementById('username').value = '"+userName+"';" +
"document.getElementById('password').value='"+password+"';");
}
});
superWebView.loadUrl(url);

use this webview settings
htmlWebView.getSettings().setAppCacheEnabled(true);
htmlWebView.getSettings().setAppCachePath("/data/data" + getPackageName() + "/cache");
htmlWebView.getSettings().setSaveFormData(true);
htmlWebView.getSettings().setDatabaseEnabled(true);
htmlWebView.getSettings().setDomStorageEnabled(true);
CookieManager.getInstance().acceptCookie();
replace htmlWebview With yourown webview

call javascript as a function instead of this.
public void onPageFinished(WebView view, String url) {
view.loadUrl("javascript: (function() {document.getElementById('username').value= '"+userName+"'; document.getElementById('password').value='"+password+"'; }) ();" );
}
Though the form must have "value" attribute.

Android, How to retrieve redirect URL from a WebView?

First i surfed the web but no answer was found matching my case.
I want to grab a specific redirect url from a webview and then keep the webview from opening it. The case is an Instagram redirect url after the user authorized my app. How to do it? Here is my code:
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("https://api.instagram.com/oauth/authorize/?client_id=my_client_id&redirect_uri=my_redirect_uri&response_type=code");

You will have to set your custom WebviewClient overriding shouldOverrideUrlLoading method for your webview before loading the url.
mWebView.setWebViewClient(new WebViewClient()
{
#SuppressWarnings("deprecation")
#Override
public boolean shouldOverrideUrlLoading(WebView webView, String url)
{
return shouldOverrideUrlLoading(url);
}
#TargetApi(Build.VERSION_CODES.N)
#Override
public boolean shouldOverrideUrlLoading(WebView webView, WebResourceRequest request)
{
Uri uri = request.getUrl();
return shouldOverrideUrlLoading(uri.toString());
}
private boolean shouldOverrideUrlLoading(final String url)
{
Log.i(TAG, "shouldOverrideUrlLoading() URL : " + url);
// Here put your code
return true; // Returning True means that application wants to leave the current WebView and handle the url itself, otherwise return false.
}
});
mWebView.loadUrl("Your URL");
Checkout the example code for handling redirect urls and open PDF without download, in webview.
https://gist.github.com/ashishdas09/014a408f9f37504eb2608d98abf49500

You should override shouldOverrideUrlLoading:
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView wView, String url) {
if (url.indexOf('api.instagram.com') > -1) //check if that's a url you want to load internally
{
webView.loadUrl(url);
return true;
}
else
{
return false; //Let the system handle it
}
}
});

Finally thanks to the answer given to my question by Udi I, with a little change, i managed to find a solution to the problem. Here is the code which worked for me:
webView.setWebViewClient(new WebViewClient(){
#Override
public boolean shouldOverrideUrlLoading(WebView wView, String url) {
return (url.indexOf("some part of my redirect uri") > -1);
}
});
webView.loadUrl(myUrl); //myUrl is the initial url.
Using the above code, if there will be any url containing redirect uri, webView won't load it. Else, webView will load it. Also thanks to Kamil Kaminski.

Simply set WebViewClient for your WebView, and override shouldOverrideUrlLoading in WebViewClient. In that method you can grab your url, and decide whether or not your WebView should follow redirection url. Here's example:
webView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// here you can assign parameter "url" to some field in class
// return true if you want to block redirection, false otherwise
return true;
}
});

You can compare URL strings / particular word, and take actions accordingly -
public boolean shouldOverrideUrlLoading(WebView view, String url) {
super.shouldOverrideUrlLoading(view, url);
if (url.contains(".pdf")
openPDF(url); // handle pdf opening
if(url.startsWith("tel:")
callNumber(url); // handle call processing
...
}
Just to add more, you can prevent webview from showing traditional error message screens, or bypass known errors -
#Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
if (errorCode == -10) {
System.out.println("Error occured: Error code: "
+ errorCode + "..Ignoring this error");
return;
}
else
{
// Show your custom screen to notify error has occured
}
...
}

Remove sign in button in google docs webview in android

I am showing PDF files by using google docs in WebView in android.
How to remove or hide "Sign In" button? I have attached screenshot below. Thanks in advance.
webview = (WebView) findViewById(R.id.webView1);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("https://docs.google.com/viewer?url=http://www.ex.com/terms.pdf");
webview.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
});

Add the embedded=true parameter.
webview = (WebView) findViewById(R.id.webView1);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("https://docs.google.com/viewer?embedded=true&url=https://orimi.com/pdf-test.pdf");
webview.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return false;
}
});
Note: This answer was actually proposed by user3777879. Tested, and working, he should get the credit - Stuart

Try this
I have tried to many answers but did not get good answer.
Finally got the solution with adding few code in when loading the pdf into the webview .
final WebView wv_webview= (WebView) view.findViewById(R.id.wv_webview);;
wv_webview.getSettings().setJavaScriptEnabled(true);
wv_webview.setWebViewClient(new WebViewClient() {
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
wv_webview.loadUrl("javascript:(function() { " +
"document.querySelector('[role=\"toolbar\"]').remove();})()");
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
wv_webview.loadUrl("javascript:(function() { " +
"document.querySelector('[role=\"toolbar\"]').remove();})()");
}
});
String your_pdf_link="https://www.antennahouse.com/XSLsample/pdf/sample-link_1.pdf";
wv_webview.loadUrl("https://docs.google.com/viewer?embedded=true&url=" + your_pdf_link);
Note:- It will show only few milliseconds when pdf loads into webview
Output:-

webview.loadUrl("javascript:(function() { " +
"document.getElementsByClassName('drive-viewer-toolstrip')[0].style.visibility='hidden'; })()");

I'd self-host your terms document, and I'd host it as .html file format rather than .pdf.
If you do not have a domain in which to self-host the file, check other file hosting services and see if they offer a public option that won't request login. Potential services that may work for you include Mediafire, Cramitin, Hotfile, Rapidshare, etc. (this is not an ordered or comprehensive list, do your own search).

Loading images from another domain in webview

When loading a page in a webview, I can't reference images on another server - if the page the webview loads is example.com, then
img src="http://anotherexample.com/image.jpg" will not load.
Is there a work-around for this?

its amazing, but for me problem solved by adding shouldOverrideUrlLoading:
webview.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
}

Clicking URLs opens default browser

I have loaded an external URL in my WebView. Now what I need is that when the user clicks on the links on the page loaded, it has to work like a normal browser and open the link in the same WebView. But it's opening the default browser and loading the page there?
I have enabled JavaScript. But still it's not working. Have I forgotten something?

If you're using a WebView you'll have to intercept the clicks yourself if you don't want the default Android behaviour.
You can monitor events in a WebView using a WebViewClient. The method you want is shouldOverrideUrlLoading(). This allows you to perform your own action when a particular URL is selected.
You set the WebViewClient of your WebView using the setWebViewClient() method.
If you look at the WebView sample in the SDK there's an example which does just what you want. It's as simple as:
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}

in some cases you might need an override of onLoadResource if you get a redirect which doesn't trigger the url loading method. in this case i tried the following:
#Override
public void onLoadResource(WebView view, String url)
{
if (url.equals("http://redirectexample.com"))
{
//do your own thing here
}
else
{
super.onLoadResource(view, url);
}
}

Official documentation says, click on a link in a WebView will launch application that handles URLs. You need to override this default behavior
myWebView.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
});
or if there is no conditional logic in the method simply do this
myWebView.setWebViewClient(new WebViewClient());

Add this 2 lines in your code -
mWebView.setWebChromeClient(new WebChromeClient());
mWebView.setWebViewClient(new WebViewClient());

The method boolean shouldOverrideUrlLoading(WebView view, String url) was deprecated in API 24. If you are supporting new devices you should use boolean shouldOverrideUrlLoading (WebView view, WebResourceRequest request).
You can use both by doing something like this:
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
newsItem.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.getUrl().toString());
return true;
}
});
} else {
newsItem.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
}

Arulx Z's answer was exactly what I was looking for.
I'm writing an app with Navigation Drawer with recyclerview and webviews, for keeping the web browsing inside the app regardless of hyperlinks clicked (thus not launching the external web browser). For that it will suffice to put the following 2 lines of code:
mWebView.setWebChromeClient(new WebChromeClient());
mWebView.setWebViewClient(new WebViewClient());
exactly under your WebView statement.
Here's a example of my implemented WebView code:
public class WebView1 extends AppCompatActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView wv = (WebView) findViewById(R.id.wv1); //webview statement
wv.setWebViewClient(new WebViewClient()); //the lines of code added
wv.setWebChromeClient(new WebChromeClient()); //same as above
wv.loadUrl("http://www.google.com");
}}
this way, every link clicked in the website will load inside your WebView.
(Using Android Studio 1.2.2 with all SDK's updated)