Develop Reference

How to open .pptx files in android webview

I am trying to open .pptx file n android webview with google docs its throwing error unable to load but its able to load .ppt type urls.any help is appreciated

try this
WebView webview = (WebView)findViewById(R.id.containWebView);
webview.setWebViewClient(new AppWebViewClients());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setUseWideViewPort(true);
webview.loadUrl("http://docs.google.com/gview?embedded=true&url="
+ "YOUR_DOC_URL_HERE");
public class AppWebViewClients extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
}
}

WebView Links not opening

I am trying to open a link using Webview in Android. There are some links embedded into WebView. My problem is webview is not opening any link that does not starts with www. For ex, www.google.com is working but maps.google.com is not.I have also tried to override WebViewClient but it didn't work.
One thing I noticed is by putting Toast to see what url is being called in WebViewClient. It showed perfect for www.google.com but returned nothing for other links. I thing WebViewClient is not getting overriden in that case. What could be the reason. Do I have to call any ethod or some property of webview.
Any help will be appreciated.
menuView.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
super.shouldOverrideUrlLoading(view, url);
Toast.makeText(getApplicationContext(), "url:--" + url, Toast.LENGTH_LONG).show();
view.loadUrl(url);
return false;
}
});
Properties that I have already set are :
menuView.setVerticalScrollBarEnabled(false);
menuView.setHorizontalScrollBarEnabled(false);
final WebSettings webSettings = menuView.getSettings();
menuView.getSettings().setJavaScriptEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setSupportMultipleWindows(true);
webSettings.setPluginState(PluginState.ON);
webSettings.setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
menuView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
menuView.getSettings().setBuiltInZoomControls(true);
// Below required for geolocation
menuView.getSettings().setJavaScriptEnabled(true);
menuView.getSettings().setGeolocationEnabled(true);
webSettings.setGeolocationEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);

// in oncreate
webview.setWebChromeClient(new wecrome());
webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setLoadsImagesAutomatically(true);
webview.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
webview.setWebViewClient(new MyBrowser());
webview.getSettings().setPluginState(PluginState.ON);
webview.loadUrl("http://www.example.net/locations/");
//inner class
private class MyBrowser extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
view.addJavascriptInterface(new Object() {
#JavascriptInterface
public void performClick() throws Exception {
Log.d("LOGIN::", "Clicked");
Toast.makeText(googleplus.this, "Login clicked",
Toast.LENGTH_LONG).show();
}
}, "login");
return true;
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
System.out.println("started");
pd.show();
super.onPageStarted(view, url, favicon);
}
#Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
pd.dismiss();
System.out.println("ends");
super.onPageFinished(view, url);
}
}

Not able to open url in webview

When I load url it shows a window to select browser. For ex. - If I want to open "http://www.facebook.com/" then it show me window to choose chrome or default browser. I am not able to understand why this is happening.
Actually in below code if i successfully got url from server then I hide a sorry image and show webview. Otherwise I show webview and hide sorry image.
webView = (WebView) findViewById(R.id.webView);
webView.setVisibility(View.VISIBLE);
ImageView img = (ImageView) findViewById(R.id.image);
img.setVisibility(View.GONE);
webView.setInitialScale(1);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setLoadWithOverviewMode(true);
webView.getSettings().setUseWideViewPort(true);
webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
webView.setScrollbarFadingEnabled(false);
webView.loadUrl("http://www.facebook.com/");

Try to add this line
webView.setWebViewClient(new WebViewClient());

Add a WebViewClient like this
public class myWebClient extends WebViewClient
{
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
}
You should override your shouldOverrideUrlLoading() method.
In your UI activity add this line
web.setWebViewClient(new myWebClient());
It will solve your problem. Hope it helps!

Firstly, replace http with https and then in a order to do this, you need to first create a new java class that extends the WebViewClient class and overrides the onPageFinished method like this:
public class CustomWebViewClient extends WebViewClient
{
#Override
public void onPageFinished(WebView view, String url) {
//https://www.facebook.com/dialog/permissions.request
//actually works for me, but I put the URL you say is coming up
//blank in there instead, whatever works for you:
if(url.startsWith("https://www.facebook.com/dialog/oauth")){
String redirectUrl = "http://www.yourdomain.com/MyApp/";
view.loadUrl(redirectUrl);
return;
}
super.onPageFinished(view, url);
}
}
Second, just add it to your WebView:
webview.setWebViewClient(new CustomWebViewClient());

When i try write into google search engine it written in url?

I have create an android application
In that application i have one use of browser
So i have create a browser in android application
But my problem is that - when i try to write any thing in google search engine it written in url of edittext control (i have load a google page as a url) and my code is below
public void onClick(View b)
{
wv=(WebView)findViewById(R.id.webView1);
WebSettings settings=wv.getSettings();
settings.setJavaScriptEnabled(true);
settings.setBuiltInZoomControls(true);
wv.setWebViewClient(new MyWebViewClient());
EditText et=(EditText)findViewById(R.id.editText1);
String url=et.getText().toString().trim();
wv.loadUrl("http://"+url);
}
private class MyWebViewClient extends WebViewClient
{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
return false;
}

You have to put String url=et.getText().toString().trim(); in some Button click event
like below
ib_load.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String url=et.getText().toString().trim();
wv.loadUrl("http://"+url);
}
});
and also make your WebViewClient
private class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
and for more information go to this demo link. I hope this help you.

Don't navigate to other pages in WebView,disable links and references

I have a webView in Android, and I open a html webpage in it. But it's full of links and images, and when I click one of them, it loads in my webview. I want to disable this behaviour, so if I click on a link, don't load it. I've tried this solution and edited a bit for myselft, but not worked.
My webviewclient code:
private boolean loaded = false;
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(loaded == false){
view.loadUrl(url);
loaded = true;
return true;
}else{
return false;
}
}
My webview implementation and settings.
WebView wv = (WebView) findViewById(R.id.recipeWv);
ourWebViewClient webViewClient = new ourWebViewClient();
webViewClient.shouldOverrideUrlLoading(wv, URLsave);
wv.setWebViewClient(webViewClient);
wv.setFocusableInTouchMode(false);
wv.setFocusable(false);
wv.setClickable(false);
WebSettings settings = wv.getSettings();
settings.setDefaultTextEncodingName("utf-8");
settings.setLoadWithOverviewMode(true);
settings.setBuiltInZoomControls(true);
Example: If the user open in my webview the StackOverflow homepage and clicks on one of the links(like "Questions") then the webview should stay on the StackOverflow homepage.

You should save in a class variable your current url and check if it's the same with the loaded one. When the user clicks on a link the shouldOverrideUrlLoading is called and check the website.
Something like this:
private String currentUrl;
public ourWebViewClient(String currentUrl) {
this.currentUrl = currentUrl;
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.equals(currentUrl)) {
view.loadUrl(url);
}
return true;
}
Important: don't forget set the WebViewClient to your WebView.
ourWebViewClient webViewClient = new ourWebViewClient(urlToLoad);
wv.setWebViewClient(webViewClient);

Implement a WebViewClient and Just return true from this method of WebView Client
webView.setWebViewClient(new WebViewClient(){
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return true;
}
});

If you want to open inner link of a web page in different window then
Don't use
WebView webView;//Your WebView Object
webView.setWebViewClient(new HelpClient());// Comment this line
B'coz setWebViewClient() method is taking care of opening a new page in the same webview. So simple comment this line.
private class HelpClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (Uri.parse(url).getHost().equals("www.example.com")) {
// This is my web site, so do not override; let my WebView load the page
return false;
}
// Otherwise, the link is not for a page on my site, so launch another Activity that handles URLs
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
}
}
Hope this will work.

Even I had been facing the same issue. I solved this issue like below
webView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
return true;
}
});
With lambda expressions
webView.setOnTouchListener((v, event) -> true);

Note that the method signature changed in API 24.
For APIs earlier than 24 the second parameter is String and that signature is now deprecated.
For APIs 24 and later, the second parameter is WebResourceRequest.
If your app supports both pre and post API 24 and you want to disable all links you can use this:
webView.setWebViewClient(new WebViewClient(){
#Override //for APIs 24 and later
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request){
return true;
}
#Override //for APIs earlier than 24
public boolean shouldOverrideUrlLoading(WebView view, String url){
return true;
}
});

You need to add an extra line of code, like so-
webview.loadUrl(url);
webview.setWebViewClient(new MyWebViewClient());
And add an additional class MyWebViewClient like this-
/* Class for webview client */
class MyWebViewClient extends WebViewClient {
// show the web page in webview but not in web browser
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
#Override
public void onLoadResource(WebView view, String url) {
super.onLoadResource(view, url);
}
}

Using inject javascript On #Override onPageFinished
view.loadUrl("javascript: (function () {document.addEventListener('click', function (e) {e.stopPropagation();}, true);})()");

Very similar to Amit Gupta's answer, but I found a shorter way to do it.
private String currentUrl;
public CustomWebViewClient(String currentUrl) {
this.currentUrl = currentUrl;
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return ! url.equals(currentUrl);
}
After this CustomWebViewClient is defined, set the client to the webview.
CustomWebViewClient webViewClient = new CustomWebViewClient(urlToLoad);
wv.setWebViewClient(webViewClient);