Fragment

Version 1.1.0-alpha04

February 7, 2019

androidx.fragment:fragment 1.1.0-alpha04, androidx.fragment:fragment-ktx 1.1.0-alpha04, and androidx.fragment:fragment-testing 1.1.0-alpha04 are released.

New features

  • Added support for the @ContentView class annotation that allows you to indicate which layout XML file should be inflated as an alternative to overriding onCreateView(). It is recommended to do view related work in onViewCreated(). (aosp/837619)
  • fragment-testing now depends on androidx.test:core-ktx 1.1.0 stable (b/121209673)
  • You can now use openActionBarOverflowOrOptionsMenu with FragmentScenario to test Fragment hosted options menus (b/121126668)

API changes

  • Added a requireArguments() method which returns a @NonNull Bundle or throws an IllegalStateException (b/121196360)
  • Added a note that getLifecycle(), getViewLifecycleOwner(), and getViewLifecycleOwnerLiveData() should not be overridden and will be made final in a future release. Please file a feature request if you are currently overriding this method. (aosp/880714)
  • Added a note that getViewModelStore() should not be overridden and will be made final in a future release. Please file a feature request if you are currently overriding this method. (aosp/880713)
  • Fixed an issue with binary compatibility with previous releases of Fragments. (aosp/887877) (aosp/889834)

Bug fixes

  • Target fragments are correctly cleared out when you pass null to setTargetFragment(). (aosp/849969)
  • Fixed an issue where target Fragments were sometimes unavailable in or after onDestroy(). (b/122312935)
  • DialogFragment’s onDismiss() is now called before onDestroy(). (aosp/874133) (aosp/890734)

Version 1.1.0-alpha03

December 17, 2018

New features

  • Fragment now implements BundleSavedStateRegistryOwner and depends on the newly released SavedState library [aosp/824380]
  • A by activityViewModels Kotlin property delegate has been added to retrieve ViewModels associated with the containing Activity [b/119050253]
  • The by viewModels Kotlin property delegate has been expanded to take an optional lambda method for getting the ViewModelStoreOwner, allowing you to pass in the parent Fragment or other custom ViewModelStoreOwner with code such as val viewModel: MyViewModel by viewModels(::requireParentFragment) [b/119050253]

API changes

  • FragmentScenario now allows you to specify a theme such as Theme.AppCompat [b/119054431]. This is a breaking change.
  • Added a requireView() method which returns a @NonNull View or throws an IllegalStateException [b/120241368]
  • Added a requireParentFragment() method which returns a @NonNull Fragment or throws an IllegalStateException [b/112103783]

Bug fixes

  • Fixed IllegalStateException: Failure saving state b/120814739
  • Fragments being restored from saved instance state will now always receive a non-null Bundle [b/119794496]
  • Removed Fragments no longer reuse their Lifecycle object if re-added [b/118880674]

Version 1.1.0-alpha02

December 3, 2018

New features

  • FragmentScenario’s Kotlin extensions now let you use a lambda for Fragment construction as an alternative to passing in a FragmentFactory instance. (aosp/812913)

Bug fixes

  • Fixed an IllegalStateException when using nested Fragments on the back stack (b/119256498)
  • Fixed crash when using FragmentScenario.recreate() with a FragmentFactory (aosp/820540)
  • Fixed an issue where target Fragments were not accessible after the Fragment was removed (aosp/807634)

Version 1.1.0-alpha01

November 5, 2018

This is the first release of the fragment-testing artifact and FragmentScenario which is built on top of the androidx.test:core APIs. See the Fragment testing documentation for more details.

New features

  • New FragmentScenario class for testing Fragments in isolation.
  • You can now set a FragmentFactory on any FragmentManager to control how new Fragment instances are instantiated.
  • Added a new by viewModels() Kotlin property delegate for retrieving ViewModels from a Fragment.
  • Pending input events (such as clicks) are now canceled in a Fragment’s onStop().

API changes

  • Significantly expanded the nullability annotations across the Fragment API surface.

Bug fixes

  • Fix an issue which caused Fragment operations to fail from within LiveData (b/77944637)

Known issues

  • Target Fragments cannot be accessed after a Fragment has been removed from the FragmentManager.
  • fragment-testing depends on androidx.test:core:1.0.0-beta01 instead of the correct androidx.test:core:1.0.0.