Samsung Internet for Android Web Developer Guide

[Samsung Internet] Mar 21, 2016

Samsung Internet for Android provides many features to make browsing smooth and convenient on Samsung Galaxy devices. Here are some tips to make your web sites fully utilize our features.

Samsung Internet for Android 4.0

The following features have been added in Samsung Internet for Android 4.0.

Custom Tabs

Apps often need to provide users with a way to view web pages. Until now, it was either embed a WebView inside your app, or launch a browser, and make the user come back to your app later.
App developers can have more control over the overall web experience without using Android WebView by launching a light-weight Custom Tab provided by Samsung Internet for Android.

Custom Tabs

The followings are customizable for Custom Tabs:

  • Menu items
  • Toolbar color

Samsung Internet Custom Tabs Service Connection

Client apps can use the sample code below for connecting to Custom Tabs service provided. If bindService() throws an exception, Custom Tabs is not supported in the installed version. The package name must be set to Samsung Internet’s package name i.e. ""

(ex) // Package name of Samsung Internet
        public static final String SAMSUNG_INTERNET_PACKAGE_NAME = "";
        // Action for the service intent.
        public static final String CUSTOM_TABS_CONNECTION =
        Intent serviceIntent = new Intent(CUSTOM_TABS_CONNECTION);
        context.bindService(serviceIntent, mServiceConnection, Context.BIND_AUTO_CREATE |

Launching a Custom Tab

Once binding the Custom Tabs service, you can use an ACTION_VIEW Intent to launch a Custom Tab from your app.

(ex) Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(<your_url_string>));
        public static final String SAMSUNG_INTERNET_PACKAGE_NAME = "";
        // Extra used to match the session.
        private static final String EXTRA_SESSION = "";
        Bundle extras = new Bundle;
        extras.putBinder(EXTRA_SESSION, sessionICustomTabsCallback.asBinder());
        intent.setPackage(SAMSUNG_INTERNET_PACKAGE_NAME );

Customizing Menu Items

Client apps can add customized menu items to the Custom Tab. The menu items are added using an array of bundles that consist of menu texts and pending Intents.

(ex) // Key for title string for custom menu item
        public static final String CUSTOM_TABS_MENU_TITLE =
        // Key for pending Intent
        public static final String CUSTOM_TABS_PENDING_INTENT =
        // Array List is used for specifying menu related params.
        public static final String CUSTOM_TABS_EXTRA_MENU_ITEMS =
        ArrayList menuItemBundleList = new ArrayList<Bundle>();
        // Separate Bundle for each menu item.
        Bundle menuItem = new Bundle();
        menuItem.putString(CUSTOM_TABS_MENU_TITLE, menuItemTitle);
        menuItem.putParcelable(CUSTOM_TABS_PENDING_INTENT, pendingIntent);
        intent.putParcelableArrayList(CUSTOM_TABS_EXTRA_MENU_ITEMS, menuItemBundleList);

Customizing Toolbar Color

The color of the Custom Tab’s tool bar can be changed to be in sync in caller apps’ theme using Intent extra.

(ex) // Intent extra for changing the color for tool bar. Color of type int indicates a Color.
        private static final String CUSTOM_TABS_TOOLBAR_COLOR = "";
        intent.putExtra(CUSTOM_TABS_TOOLBAR_COLOR, color);

Service Worker

Service Worker implementation in Samsung Internet for Android 4.0 is based on Chromium 44.2403 with some additions and changes.


  • Client manipulation
    • WindowClient.navigate(url)
  • navigator.serviceWorker
    • ServiceWorkerContainer.getRegistrations()
  • Registration
    • ServiceWorkerRegistration.update() that returns a promise
  • Cache
    • Cache.addAll(requests)
    • Cache.matchAll(request, options)


  • Client manipulation
    • Client.postMessage(message, transfer) will result in a ServiceWorkerMessageEvent being fired on navigator.serviceWorker instead of a MessageEvent being fired on the client’s global window object.
    • Clients.matchAll() returns clients in MRU order
  • Registration
    • ServiceWorkerRegistration.update() will only bypass the browser cache if the previous update check occurred over 24 hours ago.
  • Cache API
    • Cache API is restricted to secure origins (can be only used with HTTPS)
  • Fetch related
    • Fetch API request flags for navigation requests have been changed from <mode:"no-cors", credentials:"same-origin"> to <mode:"same-origin", credentials:"include", redirect: "manual">
    • FetchEvent.respondWith() accepts CORS responses for page loading or worker script loading requests

Web Push

Web Push Notification allows users to "Subscribe" to receive notifications from a web page, and users will receive the notification whether the web page is currently running on not.

Push API depends on Service Workers to provide the offline functionality needed. Web Push support in Samsung Internet is similar to Chrome browser on Android.

Samsung Internet for Android 3.0

The following features have been added in Samsung Internet for Android 3.0.

Quick Access

Quick Access

As one of the default homepages for Samsung Internet for Android, the Quick Access page enables users to visit their favorite sites with a single click. It is also loaded whenever users click the URL bar giving your sites more exposure and leading more users to you.

Quick Access page contains a default list of sites that is adjustable by the user. The default list varies according to countries, regions, carriers, etc. It is updated independently from the Samsung Internet for Android through the Samsung Quick Access server.

For more effective exposure, we recommend adding a catchy icon that shows off the characteristics of your page.

  • The icon displayed for your site will be determined following this priority:
    1. The apple-touch-icon declared in the content

      (ex) <link rel="apple-touch-icon" href="/mytouchicon.png">

    2. The favicon set up in the content

      (ex) <link rel="icon" href="/myicon.png">

    3. A simple icon created by the Samsung QuickAccess server.

Shortcut Promotion Banner

Shortcut Promotion Banner

Based on the W3C Manifest for web application standard, Samsung Android for Internet lets web pages look and work more like native Android applications. With the ‘Add to Home’ feature, users are able to install your pages to their devices and launch and explore them without being aware of the browser container.
Now Samsung Internet for Android promotes ‘Add to Home’ with notification banners. Samsung Internet for Android will recommend shortcut installation for frequently* visited sites if it has a manifest declared in a link element. This will give users easy access to the feature and certainly make users access your contents more frequently.
Of course, Samsung Internet for Android still provides the ‘Add to Home’ menu. So users can install web applications to their home screens without going through the promotion banner.
* Currently, the notification will show when the user visits a site at least 3 times during a 2 week period. This policy may change.

Secure Web Auto Login

Using fingerprint authentication, Samsung Internet for Android provides a more secure and easy way for users to login to sites. Once the user agrees to save their login info for a site, future sign-ins will be done with a single fingerprint scan. After the user identity is verified with fingerprint, the password field is auto-filled and submitted for login where applicable.
Since Samsung Internet for Android 3.2, the number of sites supported for Auto Login has been highly increased.

Secure Web Auto Login

Use standard HTML forms and avoid overriding the ‘enter’ key to make the best use of this feature.

(ex) <form action="example_form.asp">
        ID: <input type="text" name="UserName" value="username"><br/>
        Password: <input type="password" name="PassWord" value="password"><br/>
        <input type="submit" value="Submit">

Audio Notification

Audio Notification

Samsung Internet for Android lets you provide audio contents to users with the experience of native music applications.
Users can keep listening to audio streaming from your sites after switching to other tabs or applications. The Samsung Internet for Android icon is shown in the notification bar to indicate that audio streaming is coming from the web. And when the user opens the notification drawer, a mini-controller for the audio element is displayed to enable quick and easy control of audio playback.
This mini-controller is also displayed on the lock screen for user convenience.

  • An icon and the title of the current audio streaming are shown in the mini-controller.
  • The icon displayed is determined following this priority:
    1. The apple-touch-icon declared in the content

      (ex) <link rel="apple-touch-icon" href="/mytouchicon.png">

    2. The favicon set up in the content

      (ex) <link rel="icon" href="/myicon.png">

    3. The Samsung Internet for Android icon
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