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Change Log

Flowless Version 1.0-RC2 (2017-01-08)

  • Fix: Make ActivityUtils.getActivity() work if provided baseContext is not InternalContextWrapper
  • Enhancement: ˙samples to use setBaseContext(Activity) to properly support AppCompat* inflation

Flowless Version 1.0-RC1 (2017-01-04)

  • Added: KeyManager.isKeyRegistered()
  • Enhancement: added flowless-mvp-sample example

Flowless Version 1.0-alpha1.25 (2017-01-01)

  • BREAKING CHANGE: BaseDispatcher (and therefore SingleRootDispatcher and ContainerRootDispatcher) no longer take Activity constructor parameter
  • Added: KeyManager.registerKey() and KeyManager.unregisterKey() to allow registration of arbitrary key. The state bound to registered keys also gets retained.

Flowless Version 1.0-alpha1.24 (2016-12-26)

  • Fix: context.getSystemService() integration should throw IllegalStateException if Flow is not found after process death, instead of crashing with NPE
  • Change: InternalContextWrapper should be able to return global key even if Flow is not initialized

Flowless Version 1.0-alpha1.23 (2016-12-20)

  • CRITICAL FIX: Regression of 1.19 - Internal changes that allowed ServiceProvider and Flow to exist during onCreate(). They exist in dispatch() and from onPostCreate().
  • Added ServiceProvider.get(Context) and KeyManager.get(Context) methods to use instead of flow.getServices() and flow.getStates()
  • Change: Flow, KeyManager, ServiceProvider and ActivityUtils has public SERVICE_TAG constant that is used for Context.getSystemService()
  • Added public KeyContextWrapper.KEY_SERVICE_TAG constant which is used for obtaining key from Context.getSystemService()
  • Change: final classes are now marked as /* final */ to be open for mocks (no point in subclassing them)

Flowless Version 1.0-alpha1.21 (2016-12-18)

  • BREAKING CHANGE: ForceBundler.saveToBundle finally no longer takes Activity parameter
  • Added Installer.globalKey() to register global key, that can have state bound to it which never gets cleared
  • Enhancement: Global key is available from baseContext via Flow.getKey()
  • Change: KeyManager is exposed in Flow via Flow.getStates() to allow persisting global key state

Flowless Version 1.0-alpha1.17 (2016-12-11)

  • BREAKING CHANGE: Flow.services(Context) and Flow.services(View) are now flow.getServices()
  • Fix: InternalContextWrapper should no longer throw NPE if InternalLifecycleIntegration is detached or not yet attached (returns null instead)
  • Enhancement: null checks for ServiceProvider

Flowless Version 1.0-alpha1.16 (2016-12-07)

  • BREAKING CHANGE: FlowLifecycles.ViewStatePersistenceListener's preSaveViewState() is now detached into two interfaces with following methods: preSaveViewState() and onSaveInstanceState().
    • delegation of preSaveViewState() is manual, but onSaveInstanceState() is automatic. This enables Bundleable to work even without calling preSaveViewState().

Flowless Version 1.0-alpha1.15 (2016-12-04)

  • BREAKING CHANGE: FlowLifecycleListener.onViewRestored() no longer receives forcedWithBundler boolean, it never really had a purpose.

Flowless Version 1.0-alpha1.14 (2016-12-03)

  • API QUAKE!
  • BREAKING CHANGE: SingleRootDispatcher is now abstract, the dispatch() method must be implemented by the user! Its previous implementation and supporting elements were moved to ExampleDispatcher in the samples. (This change is to support annotations for metadata, and transition animations)
    • Moved following to samples: DispatcherUtils.addViewToGroupForKey(), DispatcherUtils.createAnimatorForViews(), DispatcherUtils.selectAnimatedKey() to remove forced AnimatorSet and FlowAnimation usage (to support transitions)
    • Moved following to samples: DispatcherUtils.createViewFromKey() to remove forced dependency on LayoutKey interface (to support using annotations)
    • Removed DispatcherUtils.removeFromViewGroup() and DispatcherUtils.finishTraversal() (because it cluttered the API even though it's just a null check / single-line method call)
    • Moved following to samples: LayoutKey (to support annotation-based layout specification)
    • Moved following to samples: FlowAnimation (to support transitions)
  • BREAKING(?) CHANGE: FlowLifecycleProvider is now a utility class (static methods) because it doesn't make much sense to redefine any of its behavior
  • Enhancement: added new sample flowless-sample-transitions

Flowless Version 1.0-alpha1.13 (2016-11-20)

  • BREAKING CHANGE: DispatcherUtils.persistViewToState() is now two methods: persistViewToStateAndNotifyRemoval() and persistViewToStateWithoutNotifyRemoval()
  • Added ServiceProvider.hasService(), getService() now works as documented and should be used with hasService()
  • RootHolder now has getRoot() method (without which making it public didn't make much sense)

Flowless Version 1.0-alpha1.12 (2016-08-29)

  • After realizing the power of Context.getSystemService(), added ServiceProvider

Flowless Version 1.0-alpha1.11 (2016-08-04)

  • Removed InternalContextThemeWrapper because it wasn't needed
  • Added delegation of Activity and ContextThemeWrapper methods to the inner Activity

Flowless Version 1.0-alpha1.9 (2016-07-31)

  • Added InternalContextThemeWrapper to allow using Design Support Library

Flowless Version 1.0-alpha1.7 (2016-07-30)

  • Added hook configure() and onTraversalCompleted() to dispatcher
  • Removed by Flow is called before waiting for measure

Flowless Version 1.0-alpha1.6 (2016-07-27)

  • onDestroy() callback called from onDestroyView() of InternalLifecycleIntegration (was not called previously)
  • Flow's PendingTraversal is now forced to execute if the Activity is destroyed (this prevents the state == DISPATCHED freeze)

Flowless Version 1.0-alpha1.5 (2016-07-26)

  • Animations no longer called if previousView == null

Flowless Version 1.0-alpha1.2 (2016-07-22)

  • Re-added tests
  • Fixed possible freeze-up due to failing dispatcherSetInMidFlightWaitsForBootstrap() test`

Flowless Version 1.0-alpha1.1 (2016-07-04)

  • BREAKING CHANGE: Renamed LayoutPath to LayoutKey
  • BREAKING CHANGE: Due to dispatchers no longer being bound to Application.ActivityCallbacks, preSaveViewState() must be called manually from the activity
  • onCreate callback now relies on InternalLifecycleIntegration's onActivityCreated() callback (Activity no longer has to do this manually)
  • Dispatchers rely on the InternalLifecycleIntegration's callback events instead of being an Application.ActivityCallbacks (simplifies delegation in SinglePaneContainer)
  • Removed FlowActivityCallbacks, it was the same as FlowLifecycles.BackPressListener and the like and shouldn't have existed in the first place

Flowless Version 1.0-alpha (2016-07-01)

  • Updated SingleRootDispatcher sample
  • Added ContainerRootDispatcher preset, updated master-detail sample
  • Simplified writing new Dispatchers by adding DispatcherUtil and FlowLifecycles (see preset for more details)
  • Rewrote pending traversal management in Flow to reduce possible risk of freeze up

Flowless Version 1.0-alpha (2016-06-28)

  • Added SingleRootDispatcher preset and sample

Flowless Version 1.0-alpha (2016-06-17, 2016-06-19)

  • Fixed Flow.addHistoryToIntent() state restoration

Flowless Version 1.0-alpha (2016-05-27)

  • Added ActivityUtils class to obtain Activity from Flow Contexts
  • Fixed calling bootstrap traversal on onResume() even in case the View still exists

Flowless Version 1.0-alpha (2016-05-05)

  • Completely removed Flow.Services and resource management, and all relevant classes.
  • MultiKeys and TreeKeys no longer exist, KeyChanger and KeyDispatcher no longer exist.
  • Removed default dispatcher, and the provided default key "Hello, world".
  • Added default KeyParceler (using Parcelable).
  • Added ForceBundler and Bundleable to preserve custom view state to Bundle in onSaveInstanceState().
  • Added a simple and a master-detail example using Flowless.

Version 1.0-alpha (2016-02-18)

Presented for review and feedback. API should still be considered unstable, docs incomplete, and functionality buggy. All of the above should be mostly resolved before beta.

1.0 brings major functional improvements and API changes.

  • Activity integration has been rewritten and is much simpler. One line to configure and install; one optional line to handle the back button; one optional line to handle new Intent. Flow handles lifecycle internally.
  • Resource management (including shared resources) is now natively supported via TreeKeys-- Path has effectively been absorbed and simplified. Contexts are now managed internally and there's much less nesting of wrappers.
  • Multiple simultaneous states are now supported via MultiKeys-- Flow now works natively with UIs composed of dialogs, sheets, master-detail views, etc. MultiKeys can be composed of TreeKeys for resource sharing.
  • Persistence has been expanded and simplified. You can now save a Bundle along with view state, and Flow takes care of all the lifecycle.
  • Nested/queued traversals are much safer and more efficient.
  • The goBack operation in particular is safer and more predictable.
  • Save state and view state are managed internally and orthogonally to History; you no longer have to take care to avoid losing state when changing History.

Version 0.12 (2015-08-13)

  • Fix: History.Builder#pop is nullable again, and adds History.Builder#isEmpty.

Version 0.11 (2015-08-11)

  • Fix: No longer persists an empty list of states if the filter excludes everything.

Version 0.10 (2015-05-01)

  • Fix: The Builder returned by History#buildUpon() is now safer to use. See javadoc for detail.

Version 0.9 (2015-04-24)

A large number of breaking changes have been made in the interest of focusing the library.

  • Backstack is now called History and has some new method names.
  • The resetTo, goTo, replaceTo, forward, and backward operations are all gone. In their place are two simple methods: set(Object) and set(History, Direction).
  • HasParent and goUp are gone. "Up" navigation is left as an exercise to app authors who need it, at least for the time being.
  • The @Layout annotation has been removed. You can find it in the sample if you want a copy.
  • Listener is now called Dispatcher, and can be set on a Flow after construction. Dispatcher gets more information than Listener did.

There are also some new features, and more are coming.

  • Added a Context service for easily obtaining the Flow.
  • Added FlowDelegate for easier integration into an Activity.
  • Added the flow-path module. Paths generally represent states/screens in an app, and are associated with Contexts which can be created by a user-supplied factory. PathContainer helps with switching views while maintaining view state.

Version 0.8 (2014-09-17)

  • API break: The Listener now gets a Callback, which it must call when it has completed a transition.
  • Flow now supports reentry. While a Listener is executing, calls to Flow which modify the backstack are enqueued.
  • Beefed up sample app, including demonstration of providing view persistence via the back stack

Version 0.7 (2014-05-16)

  • replaceTo and goUp keep original screens for a matching prefix of the stack.
  • Fix waitForMeasureLoop in example code.

Version 0.6 (2014-04-21)

  • API break: replaceTo() now has a new Direction associated with it, REPLACE. This is logically more correct because the incumbent backstack is not consulted, and convenient because a replace transition is typically different from a forward or backward transition.

Version 0.5 (2014-04-15)

  • Keep original screen on stack if found by resetTo.

Version 0.4 (2014-01-28)

  • API break: @Screen(layout=R.layout.foo) > @Layout(R.layout.foo), and Screens > Layouts. Support for view class literals is gone. They break theming and the fix isn't worth the bother.

Version 0.3 (2014-01-21)

  • New: Backstack#fromUpChain(Object), allows backstack to be created from a HasParent screen.

Version 0.2 (2013-11-12)

Initial release.