Webview opening certain link in browser - java

I have an app that opens my webpages in the same intent and within the same webview. Now, I have a certain page that I want it to open in browser when user requests it. Is that possible?
Here is my Code:
WebView myWebView = (WebView) findViewById(R.id.webView);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.getSettings().setAllowFileAccessFromFileURLs(true);
myWebView.getSettings().setAllowUniversalAccessFromFileURLs(true);
myWebView.loadUrl("https://mywebpage.me");
String url = myWebView.getUrl();
myWebView.setWebChromeClient(new WebChromeClient());
and if the user navigates to https//:mywebpage.me/About.html i want it to show in browser.

You should listen for navigation event.
Create WebViewClient
private class MyClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.equals(PUT_YOUR_URL_HERE)) {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
return true;
}
return false;
}
}
Pass it to WebView
myWebView.setWebViewClient(new MyClient());
By the way, this method was deprecated in API level 24.

Related

How to create a wrapper object for a webview

so I have a working webview that is simple, but most of the work is done in the main activity. I am trying to break it out to its own little class so I can load other classes into the main activity on the fly. I am stuck on how to do this. I have tried this a few times and been debugging it but I just dont know if I am using the right findByValue(R.id.webView); thing here. it keeps giving me a
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.View android.webkit.WebView.findViewById(int)' on a null object reference
issue. I have tried passing the reference in as a parameter and also hard coded it. I am missing something but dont know what. There is a WebView in my activity_main that is called wevView that is what I am trying to find out where i'm did mistake.
Thanks for any help with this.
So this is my webview class:
public class NewWebView {
//variables need for webview
private final String myPage = "http://www.google.com";
WebView myWebView = null;
//consturctor
public NewWebView(){}
//This method creates the WebView
public void createWebView(WebView webView)
{
//WebView code
//Find the Webview in the Activity.xml file
//myWebView = webView;
myWebView = (WebView)myWebView.findViewById(R.id.webview);
// myWebView = (android.webkit.WebView)findViewById(R.id.webview);
//Use the custom WebViewClient for internal app browsing
myWebView.setWebViewClient(new MyWebViewClient());
//now for enabling the settings
WebSettings webSettings = myWebView.getSettings();
//Enable JavaScript
webSettings.setJavaScriptEnabled(true);
//Enable andriod zoom features
webSettings.setBuiltInZoomControls(true);
//Loading the Url
myWebView.loadUrl(myPage);
}
//Methods Used for WebViewer
//custom WebViewClent needed for internal app navigatiion
private class MyWebViewClient extends WebViewClient
{
public boolean shouldOverRideUrlLoading(android.webkit.WebView view, String url)
{
if(Uri.parse(url).getHost().equals(myPage))
{
//this is Apivita remain in the APP
return false;
}
/*
//if it is not in my site redirect it to mobile browers
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
*/
return true;
}
}
//Enable the use of the system back button for navigation
public boolean onKeyDown(int keyCode, KeyEvent event)
{
//if the back button was pushed
if((keyCode == KeyEvent.KEYCODE_BACK) && myWebView.canGoBack())
{
myWebView.goBack();
return true;
}
//if not
return false;
}
}
and here is the main activity
public class MainActivity extends AppCompatActivity {
WebView myWebView = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//create the webview
myWebView = (android.webkit.WebView)findViewById(R.id.webview);
NewWebView apWebView = new NewWebView();
apWebView.createWebView(myWebView);
}
}
It looks like you are finding your webview in the main activity and then passing it into your class. In your custom class, you're then trying to find another view, which you technically already have. So its trying to find a webview, inside of the webview. It obviously can't find this, so it's null.
In theory, you should be able to just use myWebView = webView;, however, you need to make sure that it is finding it in the first place.

How can I open multiple PDF Links in Android WebView in Android?

I'm building android app where, I placed links to the page in webview on which multiple links are there pointing to PDFs. Everyday, new links are updated. I want to make such functionality that when user clicks on the particular PDF link, it should get opened in default PDF viewer or there itself.
Right now, nothing is happening when user clicks on PDF link within webview.
WebView w=(WebView)findViewById(R.id.web1);
WebSettings webSettings=w.getSettings();
webSettings.setDomStorageEnabled(true);
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
w.setWebViewClient(new WebViewClient());
w.loadUrl("http://collegecirculars.unipune.ac.in/sites/examdocs/_layouts/mobile/view.aspx?List=7ed6607e-6c43-401a-a922-bf8d8bf08ed8&View=dc261157-c533-4a60-977b-506fd87b2a19");
You can use Google Docs Viewer to read your pdf online:
WebView webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
String pdf = "http://collegecirculars.unipune.ac.in/sites/examdocs/Examiantions%20Timetables/Master-In-ARTS(M.A)(Rev.2008)-(24908)_Spl4-8-16.pdf?Mobile=1&Source=%2Fsites%2Fexamdocs%2F_layouts%2Fmobile%2Fview%2Easpx%3FList%3D7ed6607e%252D6c43%252D401a%252Da922%252Dbf8d8bf08ed8%26View%3Ddc261157%252Dc533%252D4a60%252D977b%252D506fd87b2a19%26ViewMode%3DSimple%26CurrentPage%3D1";
webview.loadUrl("http://drive.google.com/viewerng/viewer?embedded=true&url=" + pdf);
open in browser
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(pdf_url));
startActivity(browserIntent);
To override current URL :
private class MyWebViewClient extends WebViewClient {
#Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url){
// here you can check PDF
url = url.toLowerCase();
view.loadUrl(url);
return true;
}
}
set this MyWebViewClient to your webView.
PaymentWebViewClient paymentWebViewClient = new PaymentWebViewClient();
webView.setWebViewClient(paymentWebViewClient);

Define shouldOverrideUrlLoading to load URL in desired app?

Is there a way to define shouldOverrideUrlLoading so that I can load URL in a specific external app.
I have a web app displayed in webview and I need to load some video files externally in some other video player instead of default android media player.
Here is the current code:
private class MainWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setDataAndType(Uri.parse(url), "video/mp4");
startActivity(i);
return true;
}
}
Thanks in advance.
You have to use onShowCustomView instead. Read more here under "HTML5 Video support".
WebView mWebView;
mWebView = (WebView) findViewById(R.id.webView1);
mWebView.setWebViewClient(new GeoWebViewClient());
mWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
mWebView.getSettings().setBuiltInZoomControls(true);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.setWebChromeClient(new GeoWebChromeClient());
mWebView.loadUrl("http://.....");
public class GeoWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
pls check the following code once

android webview stay in app

I have a webview in my android app, but when someone navigates around the site, it opens in a new window, i want it to stay inside the webview.. is there a way to do this easily? Here is the code in my activity:
super.onCreate(savedInstanceState);
setContentView(R.layout.shop);
WebView webview;
webview = (WebView) findViewById(R.id.webview);
webview.getSettings().setJavaScriptEnabled(true);
webview.loadUrl("http://www.google.co.uk");
You'll have to create a WebViewClient:
public class myWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
And then set it to your WebView like this:
webview.setWebViewClient(new myWebViewClient());
Or you can just do that, without creating a new class:
myWebView.setWebViewClient(new WebViewClient());
It works for me.

WebView only opens some URLs but not all

When I make a call to my WebView and give it a URL I want it to open within the app (i.e. on my page) but it doesn't always do this.
Some pages will open within my app but others will open in the default android web browser.
Here's my code. Any help on this would be much appreciated.
WebView webView = ((WebView)findViewById(R.id.website));
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webView.loadUrl(website);
To override the default behavior, use something like:
private class HelloWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
More or less duplicate of the existing question Clicking URLs opens default browser?

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