13/08/2019
Recent Support Library Revisions
This post provides details about the most recent Support Library package releases. For earlier releases, see the Support Library Revisions Archive.
Revision 28.0.0 Production
(September 21, 2018)
This is the stable release of Support Library 28.0.0 and is suitable for use in production. This will be the last feature release under the android.support packaging, and developers are encouraged to migrate to AndroidX.
New features
AnimatedStateListDrawableCompat provides animated transitions between drawable states.
VectorDrawableCompat gains support for gradient and ColorStateList fills and strokes.
Revision 28.0.0 RC 2
(August 27, 2018)
This release candidate of the support library is considered feature-complete and its public API surface is stable. This release will be shipped as final stable version barring any critical issues that may arise. This release should be safe to use in production. Please report any issues to the public issue tracker.
Fixed issues
Proguard removes View Model Application constructor (public issue 112230489)
Fixed `AnimatedStateListDrawableCompat` constant state
Removed media2 dependency from mediarouter 1.0.0
`Fragment.getViewLifecycleOwner()` does not get stopped when hitting the home button (public issue 113070421) ([public issue 113070421](https://issuetracker.google.com/issues/113070421))
Revision 28.0.0 RC 1
(August 6, 2018)
This release candidate of the support library is considered feature-complete and its public API surface is stable. This release will be shipped as final stable version barring any critical issues that may arise. This release should be safe to use in production. Please report any issues to the public issue tracker.
Note: Some libraries, such as media2, have remained in alpha stage as their API surfaces are not yet finalized. We do not recommend using alpha libraries in production. Libraries should strictly avoid depending on alpha libraries in production, as their API surfaces may change in source- and binary-incompatible ways.
Fixed issues
BottomNavigationView menu is not initialized correctly in design support library
PositionalDataSource doesn't correctly handle pre-pended item inserts into the database
Sliders are janky and not responsive
`SlicesProviderCompat.getPinnedSpecs()` doesn't add user IDs to URIs
RoutePlayer2: remote playback does not switch back to local playback
Cached slice parsing is crashing on actions
Google Search app crash in rendering static Slice
ConcurrentModificationException in RecyclerView selection library when data set changed with removing selection
PreferenceThemeOverlay has been updated to the latest material theme. If no custom theme is provided, PreferenceThemeOverlay is used as the default theme.
PreferenceThemeOverlay.v14 and PreferenceThemeOverlay.v14.Material themes have been deprecated in favour of PreferenceThemeOverlay.
PreferenceGroup visibility is now tied to its children - hiding a parent group will also prevent its children from being shown in the hierarchy. Use Preference.isShown() to get whether a Preference is actually displayed to the user in the hierarchy.
Preference.onSetInitialValue(boolean, Object) has been deprecated and replaced with onSetInitialValue(Object). PreferenceDataStore now also correctly restores default values.
Revision 28.0.0 Beta 1
(July 2018)
This beta release of the Support Library is considered feature-complete and its public API surface is stable, barring any critical issues that may arise. While this release is safe to use in production, it may still contain bugs. Please report any issues to the public issue tracker.
Fixed issues
GestureSelectionHelper eating events on non-selectable items
Slider slices can have duplicated thumb icon when slider value is being updated
IconCompat broke TYPE_URI icons
Crash with Preferences using Seekbar
Crash in Slice.toString()
OffsettingListUpdateCallback.onMoved() calls mCallback.onRemoved() instead of mCallback.onMoved() (Issue 110711937)
Revision 27.1.1
(April 2018)
Fixed issues
AsyncListDiffer doesn't call getChangePayload (AOSP issue 73961809)
Fragment ViewModel's onCleared not called (AOSP issue 74139250)
RecyclerView.setRecycledViewPool() increases attachCount even when adapter is null
RecyclerView NPE if SmoothScroller.onStop calling stop() or startSmoothScroller()
Fragment Replacement transaction causes previous fragment to flicker after new fragment is shown (AOSP issue 74051124)
Loader callback breaking change in 27.1.0 (AOSP issue 74135998)
RTL layout does not work when the vertical grid view set column >1
onLoadFinished called multiple times in ViewPager with FragmentPagerAdapter
AsyncListDiffer should dispatch updates after setting current list (AOSP issue 74003309)
ShareActionProvider throws ClassCastException in 27.1.0
Fragment lifecycle change with ViewPager (AOSP issue 73976255)
Revision 28.0.0 Alpha 1
(March 2018)
Note: 28.0.0-alpha1 is a pre-release version to support the Android P developer preview. Its API surface is subject to change, and it does not necessarily include features or bug fixes from the latest stable versions of Support Library. For details on the P developer preview, see the release notes.
Important changes
As previously noted in the Android KTX announcement, we are continuing to adopt the androidx package prefix across our libraries. A selection of brand-new libraries, including heifwriter and recyclerview-selection, are starting out in this new package. We hope the division between android.* and androidx.* makes it more obvious which APIs are bundled with the platform, and which are static libraries for app developers that work across different versions of Android.
We have split parts of support-core-ui, support-core-utils, and support-compat into smaller libraries. This change will help us detangle support library dependencies in the future. We now have the following new libraries:
asynclayoutinflater (from support-core-ui)
collections (from support-compat)
coordinatorlayout (from design)
cursoradapter (from support-core-ui)
customview (from support-core-ui)
documentfile (from support-core-utils)
drawerlayout (from support-core-ui)
interpolator (from support-core-ui)
loader (from support-fragments and core-utils)
localbroadcastmanager (from support-core-utils)
print (from support-core-utils)
slidingpanelayout (from support-core-ui)
swiperefreshlayout (from support-core-ui)
viewpager (from support-core-ui)
New APIs
recyclerview-selection provides item selection support for RecyclerView. The package provides:
Support for creating, modifying, inspecting, and monitoring changes to a set of selected items in a RecyclerView list.
Support for intuitive multi-selection actions:
Touch-driven selection allows users to select ranges of items with an intuitive long-press-and-drag gesture.
Mouse-driven band selection allows users to a select block of items in a RecyclerView list using traditional mouse pointer band/lasso actions.
Support for touch-centric devices, including phone and touch-enabled laptop form-factors, as well as pointer-centric devices.
HEIF Writer provides support for writing HEIF-format still images.
Design Library
We’ve introduced a new application theme, Theme.MaterialComponents, with new attributes and updated styles for components.
We’ve added the following components:
BottomAppBar
Chip
ChipGroup
MaterialButton
MaterialCardView
Slices provides a framework for apps to embed templated content from other apps.
slices-builders contains methods to build content in a template format.
slices-view contain methods to present that content.
Browser actions provides a protocol for app developers to launch a consistent (but customizable) context menu for URLs. This feature is dependent on the presence of a browser app (such as Chrome, where this feature is still under development) that implements support for browser actions.
ContextCompat.getSystemService() and getSystemServiceName() allow system service lookups by type on all API levels.
Bug fixes
Fragment ViewModel's onCleared not called (AOSP issue 74139250)
onLoadFinished() called multiple times in ViewPager with FragmentPagerAdapter (AOSP issue 74182171)
RecyclerView's LinearLayoutManager's smoothScrollToPosition() displays erratic (back and forth) movement under certain circumstances (AOSP issue 71567765)
Revision 27.1.0 Release
(February 2018)
Important Changes
The underlying implementation of Loaders has been rewritten to use Lifecycle. While the API remains unchanged, there are a number of behavior changes:
initLoader(), restartLoader(), and destroyLoader() can now only be called on the main thread.
A Loader's onStartLoading() and onStopLoading() are now called when the containing FragmentActivity/Fragment is started and stopped, respectively.
onLoadFinished() will only be called between onStart() and onStop. As a result, Fragment transactions can now safely be done in onLoadFinished().
The FragmentController methods related to Loaders are now deprecated.
DialogFragment’s getDialog() will now be non-null up until onDestroyView(), instead of becoming null in dismiss(). You can now determine if the Dialog was manually dismissed in onStop() by checking if getDialog().isShowing() returns false.
New APIs
ListAdapter for RecyclerView (along with AsyncListDiffer) make it easier to compute list diffs on a background thread. These can help your RecyclerView animate content changes automatically, with minimal work on the UI thread. They use DiffUtil under the hood.
SortedList.ReplaceAll enables updating all data in a SortedList, which runs all appropriate animations for inserts, removals, changes, and moves (moves are treated as removals and inserts).
FragmentActivity and Fragment now implement ViewModelStoreOwner and can now be used with the ViewModelProvider constructors as an alternative to using ViewModelProviders.of()
Fragments now have requireContext(), requireActivity(), requireHost(), and requireFragmentManager() methods, which return a NonNull object of the equivalent get methods or throw an IllegalStateException.
requireViewById(), a compat version of findViewById() has been added to WindowCompat, ActivityCompat, and ViewCompat, which throw an IllegalArgumentException when the target cannot be found.
LoaderCallbacks methods now have the appropriate and annotations.
FileProvider now supports getExternalMediaDirs() on API 21 and higher devices via the new element.
Bug fixes
Fragment that initializes Loader in onCreate has broken lifecycle inside ViewPager
LoaderManager throws IllegalStateException in onLoadFinished
LoaderViewModel does not clear its Loaders in onCleared
Class file for android.arch.lifecycle.ViewModelStoreOwner not found
DialogFragment onDismiss not called immediately after dismiss()
Country flag emoji don't work on release keys devices when using downloadable fonts
Preferences library uses attributes that will not work on old versions of Android
MediaCompat's testlib artifact types are incorrectly documented (AOSP issue 71559905)
Google Sans crash in TypefaceCompatUtil
Expose ArraySet constructor that takes in Collection.
updateApi removes .ignore files that should be preserved
redundant MainFragments created in BrowseFragment
Remove use of reflection from CarRecyclerView
java.lang.IllegalStateException at FragmentManagerImpl.checkStateLoss
Got (undocumented) java.lang.SecurityException when using android.support.v4.content.PermissionChecker.checkSelfPermission
RecyclerView IndexOutOfBoundsException because State.mPreviousLayoutItemCount not cleared in setAdapter (AOSP issue 37657125)
Fragment that initializes Loader in onCreate has broken lifecycle inside ViewPager (AOSP issue 34831613)
FragmentManagerImpl.execSingleAction crashes
Revision 27.0.2 Release
(November 2017)
Bug fixes
EmojiEditTextHelper throws NullPointerException.
IllegalStateException: Fragment has not been attached yet.
Unable to dismiss 'Cast' icon pop-up by tapping anywhere on the screen.
MediaMetadataCompat throws BadParcelableException.
Revision 27.0.1 Release
(November 2017)
Bug fixes
LifecycleRegistry is in the wrong state after startActivityForResult() is called. (Issue 65665621)
The color of disabled buttons is too light on older API levels.
After a user scrolls, they cannot click on an item in a RecyclerView. (AOSP issue 66996774)
In Talkback, clicking on more options does not cause the system to announce the new popup or to add focus to the new options.
Revision 27.0.0 Release
(October 2017)
API Diffs
26.1 → 27.0.0 Differences Report
API Changes
Nullability annotations were added to a variety of APIs, including the following:
Fragment.getActivity()
Fragment.getContext()
This can cause Kotlin compilation errors when the nullable return types aren't properly handled.
Fragment can use support library versions of Transition for fragment transitions, including shared-element transitions.
Content paging library (android.support.content.ContentPager) provides support for paging content exposed via a ContentProvider. Use of this library allows a client to avoid expensive interprocess "cursor window swaps" on the UI thread, providing a compatibility library for the Android 8.0 feature.
ViewCompat now adds wrappers for autofill methods, including getImportantForAutofill(), isImportantForAutofill(), setAutofillHints(), and setImportantForAutofill().
Leanback gets new features and polish, and loses some deprecated classes, such as:
Picker now can use different separators between each column using the setSeparators() method.
DiffCallback has been added to allow ArrayObjectAdapter to take advantage of the output provided by DiffUtil.
Infrastructure added to support media players with variable controls, adding optional controls for fast-forward, repeat, shuffle, next, previous, and rewind.
Removal of MediaControllerGlue, PlaybackControlGlue, PlaybackControlSupportGlue, and PlaybackOverlayFragment.
For testing, the PollingCheck utility is ported from AOSP CTS. It polls for a condition to happen within a timeout window.
Infrastructure added to support runtime permissions on Instant Apps for Android 5.0, using PermissionCompatDelegate.
Trusted custom tabs now supported, along with the ability to define a relationship between an application and an origin URI.
Android Wear ambient mode support is simplified with the use of the AmbientMode headless fragment, which also makes supporting ambient mode compatible with the use of Architecture Components.
The Wear team seeks developer feedback around this significant change. For more information, see the Android Wear Release Notes.
Some deprecated classes removed as we move away from old pre-V14 APIs, such as android.support.v7.NotificationCompat (use v4 NotificationCompat instead), KeyEventCompat, ParallelExecutorCompat, and SearchViewCompat.
Migrated wear manifest metadata constants are all now available via android.support.wear.utils.MetadataConstants.
Ambient mode support is now available for all Activities, not just WearableActivity. For more information, see the AmbientMode reference.
RoundedDrawable now supports XML inflation.
Bug fixes
Application crashes with support library 27 and downloadable font
Downloadable fonts not working for new projects created after updating SDK
SpeechRecognizer API is broken in latest upgrade
Fragment-related crash during draw after removing animated View
support-leanback-demos media playback are all broken
Android Support Library is adding into manifest
FontResourcesParserCompat should understand android: attrs
Leanback Glue does not support Pause input key
Unresolved symbol in IDE when multiple packages share the same artifact id.
Null Pointer Exception in CarExtender
Wrong shuffle / repeat mode set PlaybackState after creating MediaController
Library cluster default posters are running onto next cluster while navigating
Recommendation card metadata is cut off
IllegalArgumentException at RecyclerView.attachViewToParent()
ClassNotFoundException when unmarshalling SavedState (AOSP issue 37133281)
Focus gets stuck in RecyclerView
Fix ANR in Leanback LayoutManager
Revision 26.1.0 Release
(September 2017)
This is a special release to integrate the Support Library with Lifecycles from Architecture Components. If you are not using the Lifecycles library, you don’t need to update from 26.0.2. For more information, see the Architecture Components release notes.
Important changes
Fragment and FragmentActivity (the base class for AppCompatActivity) now implement the LifecycleOwner interface from Architecture Components.
Revision 26.0.2 Release
(August 2017)
Bug fixes
Menu icons are flattened on Support Library 26.0.0
GuidedAction.multilineDescription doesn't work properly with Leanback
Revision 26.0.1 Release
(August 2017)
Bug fixes
FontCompat 26.0.0 crashes on O-MR1 devices
26.0.0 Design Support Library should not include multidex support (issue 63999442))
AppBarLayout now has 300px of left padding since 26.0.0
PlaybackTransportControl navigation is broken
Fragment.onCreateView is called sometime before onCreate finishes
android.os.BadParcelableException: ClassNotFoundException when unmarshalling: android.support.v4.media.MediaMetadataCompat
Revision 26.0.0 Release
(July 2017)
Important: The support libraries are now available through Google's Maven repository. You do not need to download the support repository from the SDK Manager. For more information, see Support Library Setup.
Important changes
The minimum SDK version has been increased to 14. As a result, many APIs that existed only for compatibility with pre-14 API levels have been deprecated. Clients of these APIs should migrate to their framework equivalents as noted in the reference page for each deprecated API.
The Wear UI Library contains classes that help you implement patterns and layouts that work on Wear devices. For more information, see Using the Wear UI Library.
The Percent Support module has been deprecated. Clients of this module should migrate to the new ConstraintLayout widget, which is provided as a separate artifact in SDK Manager.
android.support.v7.app.NotificationCompat and its containing classes has been deprecated and will be removed in a future release:
Use NotificationCompat.Builder instead of v7.app.NotificationCompat.Builder. Functionality that previously relied on using the v7 AppCompat Builder has now been folded into the v4 Compat Builder.
DecoratedCustomViewStyle has moved to the android.support.v4.app package.
MediaStyle and DecoratedMediaCustomViewStyle are now part of the media-compat library and can be found in the android.support.v4.media.app package.
New APIs
New fastScrollEnabled boolean flag for RecyclerView. If enabled, fastScrollHorizontalThumbDrawable, fastScrollHorizontalTrackDrawable, fastScrollVerticalThumbDrawable, and fastScrollVerticalTrackDrawable must be set.
API Diffs
26.0.0-beta2 → 26.0.0 Release
25.4.0 → 26.0.0 Release
Bug fixes
Infinite loop in RecyclerView.toString()
ResourceNotFoundException running Kotlin project on API 16 AVD after upgrading to Canary 6
java.lang.AssertionError in design view with support library 26.0.0-beta2
Android Studio layout preview broken for Support Library widgets
Preference.setSingleLineTitle() is ignored if the Preference was not created with attributes
DAC "Since" annotations are wrong for 25.3.0 / 25.4.0 revisions of Support Library
ResourcesCompat.getFont() throws exception
Toolbar title not in bold font
Auto sizing with maxLines produces unexpected results
NullPointerException in TextView.checkForRelayout()
AppCompatTextViewAutoSizeHelper.setRawTextSize() calls requestLayout() during layout
EmojiAppCompatTextView crashes
Autosize TextView does not adjust automatically when text is changed
Screen corruption in Instacart
UnsupportedOperationException in MenuItemCompat
NotificationCompat doesn't fully extract actions on API 24 or higher
CoordinatorLayout anchoring problems on layout updates
