Android 4.0.3 Platform

API Level: 15

Android 4.0.3 is an incremental release of the Android 4.x (Ice Cream Sandwich) platform family. This release includes new features for users and developers, API changes, and various bug fixes.

For developers, the Android 4.0.3 platform is available as a downloadable component for the Android SDK. The downloadable platform includes an Android library and system image, as well as a set of emulator skins and more. To get started developing or testing against Android 4.0.3, use the Android SDK Manager to download the platform into your SDK.

API Overview

The sections below provide a technical overview of new APIs in Android 4.0.3.

Social stream API in Contacts Provider

Applications that use social stream data such as status updates and check-ins can now sync that data with each of the user’s contacts, providing items in a stream along with photos for each.

The database table that contains an individual contact’s social stream is defined by ContactsContract.StreamItems, the Uri for which is nested within the ContactsContract.RawContacts directory to which the stream items belong. Each social stream table includes several columns for metadata about each stream item, such as an icon representing the source (an avatar), a label for the item, the primary text content, comments about the item (such as responses from other people), and more. Photos associated with a stream are stored in another table, defined by ContactsContract.StreamItemPhotos, which is available as a sub-directory of the ContactsContract.StreamItems Uri.

See ContactsContract.StreamItems and ContactsContract.StreamItemPhotos for more information.

To read or write social stream items for a contact, an application must request permission from the user by declaring <uses-permission android:name="android.permission.READ_SOCIAL_STREAM"> and/or <uses-permission android:name="android.permission.WRITE_SOCIAL_STREAM"> in their manifest files.

Calendar Provider

Home screen widgets

Starting from Android 4.0, home screen widgets should no longer include their own padding. Instead, the system now automatically adds padding for each widget, based the characteristics of the current screen. This leads to a more uniform, consistent presentation of widgets in a grid. To assist applications that host home screen widgets, the platform provides a new method getDefaultPaddingForWidget(). Applications can call this method to get the system-defined padding and account for it when computing the number of cells to allocate to the widget.

Spell-checking

  • For apps that accessing spell-checker services, a new cancel() method cancels any pending and running spell-checker tasks in a session.
  • For spell-checker services, a new suggestions flag, RESULT_ATTR_HAS_RECOMMENDED_SUGGESTIONS, lets the services distinguish higher-confidence suggestions from lower-confidence ones. For example, a spell-checker could set the flag if an input word is not in the user dictionary but has likely suggestions, or not set the flag if an input word is not in the dictionary and has suggestions that are likely to be less useful.

    Apps connected to the spell-checker can use the RESULT_ATTR_HAS_RECOMMENDED_SUGGESTIONS flag in combination with other suggestion attributes, as well as the getSuggestionsAttributes() and getSuggestionsCount() methods, to determine whether to mark input words as typos and offer suggestions.

  • A new FLAG_AUTO_CORRECTION style for text spans indicates that auto correction is about to be applied to a word/text that the user is typing/composing. This type of suggestion is rendered differently, to indicate the auto correction is happening.

Bluetooth

New public methods fetchUuidsWithSdp() and getUuids() let apps determine the features (UUIDs) supported by a remote device. In the case of fetchUuidsWithSdp(), the system performs a service discovery on the remote device to get the UUIDs supported, then broadcasts the result in an ACTION_UUID intent.

UI toolkit

New methods setUserVisibleHint() and getUserVisibleHint() allow a fragment to set a hint of whether or not it is currently user-visible. The system defers the start of fragments that are not user-visible until the loaders for visible fragments have run. The visibility hint is "true" by default.

Graphics

Accessibility

Text-to-speech

  • Adds the new method getFeatures()for querying and enabling network TTS support.
  • Adds a new listener class, UtteranceProgressListener, that engines can register to receive notification of speech-synthesis errors.

Database

  • A new CrossProcessCursorWrapper class lets content providers return results for a cross-process query more efficiently. The new class is a useful building block for wrapping cursors that will be sent to processes remotely. It can also transform normal Cursor objects into CrossProcessCursor objects transparently.

    The CrossProcessCursorWrapper class fixes common performance issues and bugs that applications have encountered when implementing content providers.

  • The CursorWindow(java.lang.String) constructor now takes a name string as input. The system no longer distinguishes between local and remote cursor windows, so CursorWindow(boolean) is now deprecated.

Intents

Adds new categories for targeting common types of applications on the device, such as CATEGORY_APP_BROWSER, CATEGORY_APP_CALENDAR, CATEGORY_APP_MAPS, and more.

Camera

Permissions

The following are new permissions:

For a detailed view of all API changes in Android 4.0.3 (API Level 15), see the API Differences Report.

API Level

The Android 4.0.3 API is assigned an integer identifier—15—that is stored in the system itself. This identifier, called the "API level", allows the system to correctly determine whether an application is compatible with the system, prior to installing the application.

To use APIs introduced in Android 4.0.3 in your application, you need compile the application against an Android platform that supports API level 15 or higher. Depending on your needs, you might also need to add an android:minSdkVersion="15" attribute to the <uses-sdk> element.

For more information, see the API Levels document.