OnboardingSupportFragment

Added in 1.1.0

Kotlin |Java

abstract class OnboardingSupportFragment : Fragment

kotlin.Any
↳	androidx.fragment.app.Fragment
	↳	androidx.leanback.app.OnboardingSupportFragment

An OnboardingSupportFragment provides a common and simple way to build onboarding screen for applications.

Building the screen

The view structure of onboarding screen is composed of the common parts and custom parts. The common parts are composed of icon, title, description and page navigator and the custom parts are composed of background, contents and foreground.

To build the screen views, the inherited class should override:

onCreateBackgroundView to provide the background view. Background view has the same size as the screen and the lowest z-order.
onCreateContentView to provide the contents view. The content view is located in the content area at the center of the screen.
onCreateForegroundView to provide the foreground view. Foreground view has the same size as the screen and the highest z-order

Each of these methods can return null if the application doesn't want to provide it.

Page information

The onboarding screen may have several pages which explain the functionality of the application. The inherited class should provide the page information by overriding the methods:

getPageCount to provide the number of pages.
getPageTitle to provide the title of the page.
getPageDescription to provide the description of the page.

Note that the information is used in onCreateView, so should be initialized before calling super.onCreateView.

Animation

Onboarding screen has three kinds of animations: Logo Splash Animation When onboarding screen appears, the logo splash animation is played by default. The animation fades in the logo image, pauses in a few seconds and fades it out.

In most cases, the logo animation needs to be customized because the logo images of applications are different from each other, or some applications may want to show their own animations.

The logo animation can be customized in two ways:

The simplest way is to provide the logo image by calling setLogoResourceId to show the default logo animation. This method should be called in onCreateView.
If the logo animation is complex, then override onCreateLogoAnimation and return the Animator object to run.

If the inherited class provides neither the logo image nor the animation, the logo animation will be omitted.

Page enter animation After logo animation finishes, page enter animation starts, which causes the header section - title and description views to fade and slide in. Users can override the default fade + slide animation by overriding onCreateTitleAnimator&onCreateDescriptionAnimator. By default we don't animate the custom views but users can provide animation by overriding onCreateEnterAnimation. Page change animation When the page changes, the default animations of the title and description are played. The inherited class can override onPageChanged to start the custom animations.

Finishing the screen

If the user finishes the onboarding screen after navigating all the pages, onFinishFragment is called. The inherited class can override this method to show another fragment or activity, or just remove this fragment.

Theming

OnboardingSupportFragment must have access to an appropriate theme. Specifically, the fragment must receive Theme_Leanback_Onboarding, or a theme whose parent is set to that theme. Themes can be provided in one of three ways:

The simplest way is to set the theme for the host Activity to the Onboarding theme or a theme that derives from it.
If the Activity already has a theme and setting its parent theme is inconvenient, the existing Activity theme can have an entry added for the attribute LeanbackOnboardingTheme_onboardingTheme. If present, this theme will be used by OnboardingSupportFragment as an overlay to the Activity's theme.
Finally, custom subclasses of OnboardingSupportFragment may provide a theme through the onProvideTheme method. This can be useful if a subclass is used across multiple Activities.

If the theme is provided in multiple ways, the onProvideTheme override has priority, followed by the Activity's theme. (Themes whose parent theme is already set to the onboarding theme do not need to set the onboardingTheme attribute; if set, it will be ignored.) onboardingThemeonboardingHeaderStyleonboardingTitleStyleonboardingDescriptionStyleonboardingNavigatorContainerStyleonboardingPageIndicatorStyleonboardingStartButtonStyleonboardingLogoStyle

Summary

Public constructors
`OnboardingSupportFragment()`

Public functions
`@ColorInt Int`	`getArrowBackgroundColor()` Returns the background color of the arrow if it's set through `setArrowBackgroundColor`.
`@ColorInt Int`	`getArrowColor()` Returns the color of the arrow if it's set through `setArrowColor`.
`@ColorInt Int`	`getDescriptionViewTextColor()` Returns the text color of DescriptionView if it's set through `setDescriptionViewTextColor`.
`@ColorInt Int`	`getDotBackgroundColor()` Returns the background color of the dot if it's set through `setDotBackgroundColor`.
`Int`	`getIconResourceId()` Returns the resource id of the main icon.
`Int`	`getLogoResourceId()` Returns the resource ID of the splash logo image.
`CharSequence?`	`getStartButtonText()` Returns the start button text if it's set through `setStartButtonText`}.
`@ColorInt Int`	`getTitleViewTextColor()` Returns the text color of TitleView if it's set through `setTitleViewTextColor`.
`View?`	`onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? )` Called to have the fragment instantiate its user interface view.
`Int`	`onProvideTheme()` Returns the theme used for styling the fragment.
`Unit`	`onSaveInstanceState(outState: Bundle)` Called to ask the fragment to save its current dynamic state, so it can later be reconstructed in a new instance if its process is restarted.
`Unit`	`onViewCreated(view: View, savedInstanceState: Bundle?)` Called immediately after `onCreateView` has returned, but before any saved state has been restored in to the view.
`Unit`	`setArrowBackgroundColor(color: @ColorInt Int)` Sets the background color of the arrow.
`Unit`	`setArrowColor(color: @ColorInt Int)` Sets the color of the arrow.
`Unit`	`setDescriptionViewTextColor(color: @ColorInt Int)` Sets the text color for DescriptionView.
`Unit`	`setDotBackgroundColor(color: @ColorInt Int)` Sets the background color of the dots.
`Unit`	`setIconResouceId(resourceId: Int)` Sets the resource id for the main icon.
`Unit`	`setLogoResourceId(id: Int)` Sets the resource ID of the splash logo image.
`Unit`	`setStartButtonText(text: CharSequence?)` Sets the text on the start button text.
`Unit`	`setTitleViewTextColor(color: @ColorInt Int)` Sets the text color for TitleView.

Protected functions
`Int`	`getCurrentPageIndex()` Returns the index of the current page.
`abstract Int`	`getPageCount()` Returns the page count.
`abstract CharSequence?`	`getPageDescription(pageIndex: Int)` Returns the description of the given page.
`abstract CharSequence?`	`getPageTitle(pageIndex: Int)` Returns the title of the given page.
`Boolean`	`isLogoAnimationFinished()` Returns whether the logo enter animation is finished.
`Unit`	`moveToNextPage()` Navigates to the next page.
`Unit`	`moveToPreviousPage()` Navigates to the previous page.
`abstract View?`	`onCreateBackgroundView(inflater: LayoutInflater, container: ViewGroup)` Called to have the inherited class create background view.
`abstract View?`	`onCreateContentView(inflater: LayoutInflater, container: ViewGroup)` Called to have the inherited class create content view.
`Animator`	`onCreateDescriptionAnimator()` Provides the entry animation for description view.
`Animator?`	`onCreateEnterAnimation()` Called to have the inherited class create its enter animation.
`abstract View?`	`onCreateForegroundView(inflater: LayoutInflater, container: ViewGroup)` Called to have the inherited class create foreground view.
`Animator?`	`onCreateLogoAnimation()` Called to have the inherited class create its own logo animation.
`Animator`	`onCreateTitleAnimator()` Provides the entry animation for title view.
`Unit`	`onFinishFragment()` Called when the onboarding flow finishes.
`Unit`	`onLogoAnimationFinished()` Called immediately after the logo animation is complete or no logo animation is specified.
`Unit`	`onPageChanged(newPage: Int, previousPage: Int)` Called when the page has been changed.
`Unit`	`startEnterAnimation(force: Boolean)` Called to start entrance transition.

Inherited functions

From androidx.activity.result.ActivityResultCaller

abstract ActivityResultLauncher<I!>!

<I, O> registerForActivityResult(
    contract: ActivityResultContract<I!, O!>!,
    callback: ActivityResultCallback<O!>!
)

From android.content.ComponentCallbacks

`abstract Unit`	`onConfigurationChanged(p: Configuration!)`
`abstract Unit`	`onLowMemory()`

From androidx.fragment.app.Fragment

`Unit`	`dump( prefix: String, fd: FileDescriptor?, writer: PrintWriter, args: Array<String!>? )` Print the Fragments's state into the given stream.
`Boolean`	`equals(o: Any?)` Subclasses can not override equals().
`FragmentActivity?`	`getActivity()` Return the `FragmentActivity` this fragment is currently associated with.
`Boolean`	`getAllowEnterTransitionOverlap()` Returns whether the the exit transition and enter transition overlap or not.
`Boolean`	`getAllowReturnTransitionOverlap()` Returns whether the the return transition and reenter transition overlap or not.
`Bundle?`	`getArguments()` Return the arguments supplied when the fragment was instantiated, if any.
`FragmentManager`	`getChildFragmentManager()` Return a private FragmentManager for placing and managing Fragments inside of this Fragment.
`Context?`	`getContext()` Return the `Context` this fragment is currently associated with.
`CreationExtras`	`@CallSuper getDefaultViewModelCreationExtras()` The `Fragment's arguments` when this is first called will be used as the defaults to any `androidx.lifecycle.SavedStateHandle` passed to a view model created using this extra.
`ViewModelProvider.Factory`	`getDefaultViewModelProviderFactory()`
`Any?`	`getEnterTransition()` Returns the Transition that will be used to move Views into the initial scene.
`Any?`	`getExitTransition()` Returns the Transition that will be used to move Views out of the scene when the fragment is removed, hidden, or detached when not popping the back stack.
`FragmentManager?`	`getFragmentManager()` This function is deprecated. This has been removed in favor of `getParentFragmentManager()` which throws an `IllegalStateException` if the FragmentManager is null.
`Any?`	`getHost()` Return the host object of this fragment.
`Int`	`getId()` Return the identifier this fragment is known by.
`LayoutInflater`	`getLayoutInflater()` Returns the cached LayoutInflater used to inflate Views of this Fragment.
`Lifecycle`	`getLifecycle()` Overriding this method is no longer supported and this method will be made `final` in a future version of Fragment.
`LoaderManager`	`getLoaderManager()` This function is deprecated. Use `LoaderManager.getInstance(this)`.
`Fragment?`	`getParentFragment()` Returns the parent Fragment containing this Fragment.
`FragmentManager`	`getParentFragmentManager()` Return the FragmentManager for interacting with fragments associated with this fragment's activity.
`Any?`	`getReenterTransition()` Returns the Transition that will be used to move Views in to the scene when returning due to popping a back stack.
`Resources`	`getResources()` Return `requireActivity().getResources()`.
`Boolean`	`getRetainInstance()` This function is deprecated. Instead of retaining the Fragment itself, use a non-retained Fragment and keep retained state in a ViewModel attached to that Fragment.
`Any?`	`getReturnTransition()` Returns the Transition that will be used to move Views out of the scene when the Fragment is preparing to be removed, hidden, or detached because of popping the back stack.
`SavedStateRegistry`	`getSavedStateRegistry()`
`Any?`	`getSharedElementEnterTransition()` Returns the Transition that will be used for shared elements transferred into the content Scene.
`Any?`	`getSharedElementReturnTransition()` Return the Transition that will be used for shared elements transferred back during a pop of the back stack.
`String`	`getString(resId: @StringRes Int)` Return a localized string from the application's package's default string table.
`String`	`getString(resId: @StringRes Int, formatArgs: Array<Any!>?)` Return a localized formatted string from the application's package's default string table, substituting the format arguments as defined in `java.util.Formatter` and format.
`String?`	`getTag()` Get the tag name of the fragment, if specified.
`Fragment?`	`getTargetFragment()` This function is deprecated. Instead of using a target fragment to pass results, use `setFragmentResult` to deliver results to `FragmentResultListener` instances registered by other fragments via `setFragmentResultListener`.
`Int`	`getTargetRequestCode()` This function is deprecated. When using the target fragment replacement of `setFragmentResultListener` and `setFragmentResult`, consider using `setArguments` to pass a `requestKey` if you need to support dynamic request keys.
`CharSequence`	`getText(resId: @StringRes Int)` Return a localized, styled CharSequence from the application's package's default string table.
`Boolean`	`getUserVisibleHint()` This function is deprecated. Use `setMaxLifecycle` instead.
`View?`	`getView()` Get the root view for the fragment's layout (the one returned by `onCreateView`), if provided.
`LifecycleOwner`	`@MainThread getViewLifecycleOwner()` Get a `LifecycleOwner` that represents the `Fragment's View` lifecycle.
`LiveData<LifecycleOwner!>`	`getViewLifecycleOwnerLiveData()` Retrieve a `LiveData` which allows you to observe the `lifecycle of the Fragment's View`.
`ViewModelStore`	`getViewModelStore()` Returns the `ViewModelStore` associated with this Fragment
`Int`	`hashCode()` Subclasses can not override hashCode().
`java-static Fragment`	`instantiate(context: Context, fname: String)` This function is deprecated. Use `getFragmentFactory` and `instantiate`
`java-static Fragment`	`instantiate(context: Context, fname: String, args: Bundle?)` This function is deprecated. Use `getFragmentFactory` and `instantiate`, manually calling `setArguments` on the returned Fragment.
`Boolean`	`isAdded()` Return true if the fragment is currently added to its activity.
`Boolean`	`isDetached()` Return true if the fragment has been explicitly detached from the UI.
`Boolean`	`isHidden()` Return true if the fragment has been hidden.
`Boolean`	`isInLayout()` Return true if the layout is included as part of an activity view hierarchy via the tag.
`Boolean`	`isRemoving()` Return true if this fragment is currently being removed from its activity.
`Boolean`	`isResumed()` Return true if the fragment is in the resumed state.
`Boolean`	`isStateSaved()` Returns true if this fragment is added and its state has already been saved by its host.
`Boolean`	`isVisible()` Return true if the fragment is currently visible to the user.
`Unit`	`@MainThread @CallSuper onActivityCreated(savedInstanceState: Bundle?)` This function is deprecated. use `onViewCreated` for code touching the view created by `onCreateView` and `onCreate` for other initialization.
`Unit`	`onActivityResult(requestCode: Int, resultCode: Int, data: Intent?)` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`Unit`	`@MainThread @CallSuper onAttach(activity: Activity)` This function is deprecated. See `onAttach`.
`Unit`	`@MainThread @CallSuper onAttach(context: Context)` Called when a fragment is first attached to its context.
`Unit`	`@MainThread onAttachFragment(childFragment: Fragment)` This function is deprecated. The responsibility for listening for fragments being attached has been moved to FragmentManager.
`Unit`	`@CallSuper onConfigurationChanged(newConfig: Configuration)`
`Boolean`	`@MainThread onContextItemSelected(item: MenuItem)` This hook is called whenever an item in a context menu is selected.
`Unit`	`@MainThread @CallSuper onCreate(savedInstanceState: Bundle?)` Called to do initial creation of a fragment.
`Animation?`	`@MainThread onCreateAnimation(transit: Int, enter: Boolean, nextAnim: Int)` Called when a fragment loads an animation.
`Animator?`	`@MainThread onCreateAnimator(transit: Int, enter: Boolean, nextAnim: Int)` Called when a fragment loads an animator.
`Unit`	`@MainThread onCreateContextMenu( menu: ContextMenu, v: View, menuInfo: ContextMenu.ContextMenuInfo? )` Called when a context menu for the `view` is about to be shown.
`Unit`	`@MainThread onCreateOptionsMenu(menu: Menu, inflater: MenuInflater)` This function is deprecated. `androidx.activity.ComponentActivity` now implements `MenuHost`, an interface that allows any component, including your activity itself, to add menu items by calling addMenuProvider without forcing all components through this single method override.
`Unit`	`@MainThread @CallSuper onDestroy()` Called when the fragment is no longer in use.
`Unit`	`@MainThread onDestroyOptionsMenu()` This function is deprecated. `androidx.activity.ComponentActivity` now implements `MenuHost`, an interface that allows any component, including your activity itself, to add menu items by calling addMenuProvider without forcing all components through this single method override.
`Unit`	`@MainThread @CallSuper onDestroyView()` Called when the view previously created by `onCreateView` has been detached from the fragment.
`Unit`	`@MainThread @CallSuper onDetach()` Called when the fragment is no longer attached to its activity.
`LayoutInflater`	`onGetLayoutInflater(savedInstanceState: Bundle?)` Returns the LayoutInflater used to inflate Views of this Fragment.
`Unit`	`@MainThread onHiddenChanged(hidden: Boolean)` Called when the hidden state (as returned by `isHidden` of the fragment or another fragment in its hierarchy has changed.
`Unit`	`@UiThread @CallSuper onInflate( activity: Activity, attrs: AttributeSet, savedInstanceState: Bundle? )` This function is deprecated. See `onInflate`.
`Unit`	`@UiThread @CallSuper onInflate( context: Context, attrs: AttributeSet, savedInstanceState: Bundle? )` Called when a fragment is being created as part of a view layout inflation, typically from setting the content view of an activity.
`Unit`	`@MainThread @CallSuper onLowMemory()`
`Unit`	`onMultiWindowModeChanged(isInMultiWindowMode: Boolean)` Called when the Fragment's activity changes from fullscreen mode to multi-window mode and visa-versa.
`Boolean`	`@MainThread onOptionsItemSelected(item: MenuItem)` This function is deprecated. `androidx.activity.ComponentActivity` now implements `MenuHost`, an interface that allows any component, including your activity itself, to add menu items by calling addMenuProvider without forcing all components through this single method override.
`Unit`	`@MainThread onOptionsMenuClosed(menu: Menu)` This function is deprecated. `androidx.activity.ComponentActivity` now implements `MenuHost`, an interface that allows any component, including your activity itself, to add menu items by calling addMenuProvider without forcing all components through this single method override.
`Unit`	`@MainThread @CallSuper onPause()` Called when the Fragment is no longer resumed.
`Unit`	`onPictureInPictureModeChanged(isInPictureInPictureMode: Boolean)` Called by the system when the activity changes to and from picture-in-picture mode.
`Unit`	`@MainThread onPrepareOptionsMenu(menu: Menu)` This function is deprecated. `androidx.activity.ComponentActivity` now implements `MenuHost`, an interface that allows any component, including your activity itself, to add menu items by calling addMenuProvider without forcing all components through this single method override.
`Unit`	`@MainThread onPrimaryNavigationFragmentChanged( isPrimaryNavigationFragment: Boolean )` Callback for when the primary navigation state of this Fragment has changed.
`Unit`	`onRequestPermissionsResult( requestCode: Int, permissions: Array<String!>, grantResults: IntArray )` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`Unit`	`@MainThread @CallSuper onResume()` Called when the fragment is visible to the user and actively running.
`Unit`	`@MainThread @CallSuper onStart()` Called when the Fragment is visible to the user.
`Unit`	`@MainThread @CallSuper onStop()` Called when the Fragment is no longer started.
`Unit`	`@MainThread @CallSuper onViewStateRestored(savedInstanceState: Bundle?)` Called when all saved state has been restored into the view hierarchy of the fragment.
`Unit`	`postponeEnterTransition()` Postpone the entering Fragment transition until `startPostponedEnterTransition` or `executePendingTransactions` has been called.
`Unit`	`postponeEnterTransition(duration: Long, timeUnit: TimeUnit)` Postpone the entering Fragment transition for a given amount of time and then call `startPostponedEnterTransition`.
`ActivityResultLauncher<I!>`	`@MainThread <I, O> registerForActivityResult( contract: ActivityResultContract<I!, O!>, callback: ActivityResultCallback<O!> )` Register a request to `start an activity for result`, designated by the given `contract`.
`ActivityResultLauncher<I!>`	`@MainThread <I, O> registerForActivityResult( contract: ActivityResultContract<I!, O!>, registry: ActivityResultRegistry, callback: ActivityResultCallback<O!> )` Register a request to `start an activity for result`, designated by the given `contract`.
`Unit`	`registerForContextMenu(view: View)` Registers a context menu to be shown for the given view (multiple views can show the context menu).
`Unit`	`requestPermissions(permissions: Array<String!>, requestCode: Int)` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`FragmentActivity`	`requireActivity()` Return the `FragmentActivity` this fragment is currently associated with.
`Bundle`	`requireArguments()` Return the arguments supplied when the fragment was instantiated.
`Context`	`requireContext()` Return the `Context` this fragment is currently associated with.
`FragmentManager`	`requireFragmentManager()` This function is deprecated. This has been renamed to `getParentFragmentManager()` to make it clear that you are accessing the FragmentManager that contains this Fragment and not the FragmentManager associated with child Fragments.
`Any`	`requireHost()` Return the host object of this fragment.
`Fragment`	`requireParentFragment()` Returns the parent Fragment containing this Fragment.
`View`	`requireView()` Get the root view for the fragment's layout (the one returned by `onCreateView`).
`Unit`	`setAllowEnterTransitionOverlap(allow: Boolean)` Sets whether the the exit transition and enter transition overlap or not.
`Unit`	`setAllowReturnTransitionOverlap(allow: Boolean)` Sets whether the the return transition and reenter transition overlap or not.
`Unit`	`setArguments(args: Bundle?)` Supply the construction arguments for this fragment.
`Unit`	`setEnterSharedElementCallback(callback: SharedElementCallback?)` When custom transitions are used with Fragments, the enter transition callback is called when this Fragment is attached or detached when not popping the back stack.
`Unit`	`setEnterTransition(transition: Any?)` Sets the Transition that will be used to move Views into the initial scene.
`Unit`	`setExitSharedElementCallback(callback: SharedElementCallback?)` When custom transitions are used with Fragments, the exit transition callback is called when this Fragment is attached or detached when popping the back stack.
`Unit`	`setExitTransition(transition: Any?)` Sets the Transition that will be used to move Views out of the scene when the fragment is removed, hidden, or detached when not popping the back stack.
`Unit`	`setHasOptionsMenu(hasMenu: Boolean)` This function is deprecated. This method is no longer needed when using a `MenuProvider` to provide a `Menu` to your activity, which replaces `onCreateOptionsMenu` as the recommended way to provide a consistent, optionally `Lifecycle`-aware, and modular way to handle menu creation and item selection.
`Unit`	`setInitialSavedState(state: Fragment.SavedState?)` Set the initial saved state that this Fragment should restore itself from when first being constructed, as returned by `FragmentManager.saveFragmentInstanceState`.
`Unit`	`setMenuVisibility(menuVisible: Boolean)` Set a hint for whether this fragment's menu should be visible.
`Unit`	`setReenterTransition(transition: Any?)` Sets the Transition that will be used to move Views in to the scene when returning due to popping a back stack.
`Unit`	`setRetainInstance(retain: Boolean)` This function is deprecated. Instead of retaining the Fragment itself, use a non-retained Fragment and keep retained state in a ViewModel attached to that Fragment.
`Unit`	`setReturnTransition(transition: Any?)` Sets the Transition that will be used to move Views out of the scene when the Fragment is preparing to be removed, hidden, or detached because of popping the back stack.
`Unit`	`setSharedElementEnterTransition(transition: Any?)` Sets the Transition that will be used for shared elements transferred into the content Scene.
`Unit`	`setSharedElementReturnTransition(transition: Any?)` Sets the Transition that will be used for shared elements transferred back during a pop of the back stack.
`Unit`	`setTargetFragment(fragment: Fragment?, requestCode: Int)` This function is deprecated. Instead of using a target fragment to pass results, the fragment requesting a result should use `setFragmentResultListener` to register a `FragmentResultListener` with a `requestKey` using its `parent fragment manager`.
`Unit`	`setUserVisibleHint(isVisibleToUser: Boolean)` This function is deprecated. If you are manually calling this method, use `setMaxLifecycle` instead.
`Boolean`	`shouldShowRequestPermissionRationale(permission: String)` Gets whether you should show UI with rationale before requesting a permission.
`Unit`	`startActivity(intent: Intent)` Call startActivity from the fragment's containing Activity.
`Unit`	`startActivity(intent: Intent, options: Bundle?)` Call startActivity from the fragment's containing Activity.
`Unit`	`startActivityForResult(intent: Intent, requestCode: Int)` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`Unit`	`startActivityForResult(intent: Intent, requestCode: Int, options: Bundle?)` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`Unit`	`startIntentSenderForResult( intent: IntentSender, requestCode: Int, fillInIntent: Intent?, flagsMask: Int, flagsValues: Int, extraFlags: Int, options: Bundle? )` This function is deprecated. This method has been deprecated in favor of using the Activity Result API which brings increased type safety via an `ActivityResultContract` and the prebuilt contracts for common intents available in `androidx.activity.result.contract.ActivityResultContracts`, provides hooks for testing, and allow receiving results in separate, testable classes independent from your fragment.
`Unit`	`startPostponedEnterTransition()` Begin postponed transitions after `postponeEnterTransition` was called.
`String`	`toString()`
`Unit`	`unregisterForContextMenu(view: View)` Prevents a context menu to be shown for the given view.

From androidx.lifecycle.HasDefaultViewModelProviderFactory

`CreationExtras!`	`getDefaultViewModelCreationExtras()`
`abstract ViewModelProvider.Factory!`	`getDefaultViewModelProviderFactory()`

From androidx.lifecycle.LifecycleOwner

abstract Lifecycle!

getLifecycle()

From androidx.savedstate.SavedStateRegistryOwner

abstract SavedStateRegistry!

getSavedStateRegistry()

From android.view.View.OnCreateContextMenuListener

abstract Unit

onCreateContextMenu(
    p: ContextMenu!,
    p1: View!,
    p2: ContextMenu.ContextMenuInfo!
)

From androidx.lifecycle.ViewModelStoreOwner

abstract ViewModelStore!

getViewModelStore()

Public constructors

OnboardingSupportFragment

Added in 1.1.0

OnboardingSupportFragment()

Public functions

getArrowBackgroundColor

Added in 1.1.0

fun getArrowBackgroundColor(): @ColorInt Int

Returns the background color of the arrow if it's set through setArrowBackgroundColor. If no color was set, transparent is returned.

getArrowColor

Added in 1.1.0

fun getArrowColor(): @ColorInt Int

Returns the color of the arrow if it's set through setArrowColor. If no color was set, transparent is returned.

getDescriptionViewTextColor

Added in 1.1.0

fun getDescriptionViewTextColor(): @ColorInt Int

Returns the text color of DescriptionView if it's set through setDescriptionViewTextColor. If no color was set, transparent is returned.

getDotBackgroundColor

Added in 1.1.0

fun getDotBackgroundColor(): @ColorInt Int

Returns the background color of the dot if it's set through setDotBackgroundColor. If no color was set, transparent is returned.

getIconResourceId

Added in 1.1.0

fun getIconResourceId(): Int

Returns the resource id of the main icon.

getLogoResourceId

Added in 1.1.0

fun getLogoResourceId(): Int

Returns the resource ID of the splash logo image.

Returns
`Int`	The resource ID of the splash logo image.

getStartButtonText

Added in 1.1.0

fun getStartButtonText(): CharSequence?

Returns the start button text if it's set through setStartButtonText}. If no string was set, null is returned.

getTitleViewTextColor

Added in 1.1.0

fun getTitleViewTextColor(): @ColorInt Int

Returns the text color of TitleView if it's set through setTitleViewTextColor. If no color was set, transparent is returned.

onCreateView

fun onCreateView(
    inflater: LayoutInflater,
    container: ViewGroup?,
    savedInstanceState: Bundle?
): View?

Called to have the fragment instantiate its user interface view. This is optional, and non-graphical fragments can return null. This will be called between onCreate and onViewCreated.

A default View can be returned by calling Fragment in your constructor. Otherwise, this method returns null.

It is recommended to only inflate the layout in this method and move logic that operates on the returned View to onViewCreated.

If you return a View from here, you will later be called in onDestroyView when the view is being released.

Parameters
`inflater: LayoutInflater`	The LayoutInflater object that can be used to inflate any views in the fragment,
`container: ViewGroup?`	If non-null, this is the parent view that the fragment's UI should be attached to. The fragment should not add the view itself, but this can be used to generate the LayoutParams of the view.
`savedInstanceState: Bundle?`	If non-null, this fragment is being re-constructed from a previous saved state as given here.

Returns
`View?`	Return the View for the fragment's UI, or null.

onProvideTheme

Added in 1.1.0

fun onProvideTheme(): Int

Returns the theme used for styling the fragment. The default returns -1, indicating that the host Activity's theme should be used.

Returns
`Int`	The theme resource ID of the theme to use in this fragment, or -1 to use the host Activity's theme.

onSaveInstanceState

fun onSaveInstanceState(outState: Bundle): Unit

Called to ask the fragment to save its current dynamic state, so it can later be reconstructed in a new instance if its process is restarted. If a new instance of the fragment later needs to be created, the data you place in the Bundle here will be available in the Bundle given to onCreate, onCreateView, and onViewCreated.

This corresponds to Activity.onSaveInstanceState(Bundle) and most of the discussion there applies here as well. Note however: this method may be called at any time before onDestroy. There are many situations where a fragment may be mostly torn down (such as when placed on the back stack with no UI showing), but its state will not be saved until its owning activity actually needs to save its state.

Parameters
`outState: Bundle`	Bundle in which to place your saved state.

onViewCreated

fun onViewCreated(view: View, savedInstanceState: Bundle?): Unit

Called immediately after onCreateView has returned, but before any saved state has been restored in to the view. This gives subclasses a chance to initialize themselves once they know their view hierarchy has been completely created. The fragment's view hierarchy is not however attached to its parent at this point.

Parameters
`view: View`	The View returned by `onCreateView`.
`savedInstanceState: Bundle?`	If non-null, this fragment is being re-constructed from a previous saved state as given here.

setArrowBackgroundColor

Added in 1.1.0

fun setArrowBackgroundColor(color: @ColorInt Int): Unit

Sets the background color of the arrow. If not set, the default color from attr PagingIndicator_arrowBgColor in the theme will be used.

Parameters
`color: @ColorInt Int`	the color to use for arrow background

setArrowColor

Added in 1.1.0

fun setArrowColor(color: @ColorInt Int): Unit

Sets the color of the arrow. This color will supersede the color set in the theme attribute PagingIndicator_arrowColor if provided. If none of these two are set, the arrow will have its original bitmap color.

Parameters
`color: @ColorInt Int`	the color to use for arrow background

setDescriptionViewTextColor

Added in 1.1.0

fun setDescriptionViewTextColor(color: @ColorInt Int): Unit

Sets the text color for DescriptionView. If not set, the default textColor set in style referenced by attr onboardingDescriptionStyle will be used.

Parameters
`color: @ColorInt Int`	the color to use as the text color for DescriptionView

setDotBackgroundColor

Added in 1.1.0

fun setDotBackgroundColor(color: @ColorInt Int): Unit

Sets the background color of the dots. If not set, the default color from attr PagingIndicator_dotBgColor in the theme will be used.

Parameters
`color: @ColorInt Int`	the color to use for dot backgrounds

setIconResouceId

Added in 1.1.0

fun setIconResouceId(resourceId: Int): Unit

Sets the resource id for the main icon.

setLogoResourceId

Added in 1.1.0

fun setLogoResourceId(id: Int): Unit

Sets the resource ID of the splash logo image. If the logo resource id set, the default logo splash animation will be played.

Parameters
`id: Int`	The resource ID of the logo image.

setStartButtonText

Added in 1.1.0

fun setStartButtonText(text: CharSequence?): Unit

Sets the text on the start button text. If not set, the default text set in LeanbackOnboardingTheme_onboardingStartButtonStyle will be used.

Parameters
`text: CharSequence?`	the start button text

setTitleViewTextColor

Added in 1.1.0

fun setTitleViewTextColor(color: @ColorInt Int): Unit

Sets the text color for TitleView. If not set, the default textColor set in style referenced by attr onboardingTitleStyle will be used.

Parameters
`color: @ColorInt Int`	the color to use as the text color for TitleView

Protected functions

getCurrentPageIndex

Added in 1.1.0

protected fun getCurrentPageIndex(): Int

Returns the index of the current page.

Returns
`Int`	The index of the current page.

getPageCount

Added in 1.1.0

protected abstract fun getPageCount(): Int

Returns the page count.

Returns
`Int`	The page count.

getPageDescription

Added in 1.1.0

protected abstract fun getPageDescription(pageIndex: Int): CharSequence?

Returns the description of the given page.

Parameters
`pageIndex: Int`	The page index.

Returns
`CharSequence?`	The description of the page.

getPageTitle

Added in 1.1.0

protected abstract fun getPageTitle(pageIndex: Int): CharSequence?

Returns the title of the given page.

Parameters
`pageIndex: Int`	The page index.

Returns
`CharSequence?`	The title of the page.

isLogoAnimationFinished

Added in 1.1.0

protected fun isLogoAnimationFinished(): Boolean

Returns whether the logo enter animation is finished.

Returns
`Boolean`	`true` if the logo enter transition is finished, `false` otherwise

moveToNextPage

Added in 1.1.0

protected fun moveToNextPage(): Unit

Navigates to the next page.

moveToPreviousPage

Added in 1.1.0

protected fun moveToPreviousPage(): Unit

Navigates to the previous page.

onCreateBackgroundView

Added in 1.1.0

protected abstract fun onCreateBackgroundView(inflater: LayoutInflater, container: ViewGroup): View?

Called to have the inherited class create background view. This is optional and the fragment which doesn't have the background view can return null. This is called inside onCreateView.

Parameters
`inflater: LayoutInflater`	The LayoutInflater object that can be used to inflate the views,
`container: ViewGroup`	The parent view that the additional views are attached to.The fragment should not add the view by itself.

Returns
`View?`	The background view for the onboarding screen, or `null`.

onCreateContentView

Added in 1.1.0

protected abstract fun onCreateContentView(inflater: LayoutInflater, container: ViewGroup): View?

Called to have the inherited class create content view. This is optional and the fragment which doesn't have the content view can return null. This is called inside onCreateView.

The content view would be located at the center of the screen.

Parameters
`inflater: LayoutInflater`	The LayoutInflater object that can be used to inflate the views,
`container: ViewGroup`	The parent view that the additional views are attached to.The fragment should not add the view by itself.

Returns
`View?`	The content view for the onboarding screen, or `null`.

onCreateDescriptionAnimator

Added in 1.1.0

protected fun onCreateDescriptionAnimator(): Animator

Provides the entry animation for description view. This allows users to override the default fade and slide animation. Returning null will disable the animation.

onCreateEnterAnimation

Added in 1.1.0

protected fun onCreateEnterAnimation(): Animator?

Called to have the inherited class create its enter animation. The start animation runs after logo animation ends.

Returns
`Animator?`	The `Animator` object which runs the page enter animation.

onCreateForegroundView

Added in 1.1.0

protected abstract fun onCreateForegroundView(inflater: LayoutInflater, container: ViewGroup): View?

Called to have the inherited class create foreground view. This is optional and the fragment which doesn't need the foreground view can return null. This is called inside onCreateView.

This foreground view would have the highest z-order.

Parameters
`inflater: LayoutInflater`	The LayoutInflater object that can be used to inflate the views,
`container: ViewGroup`	The parent view that the additional views are attached to.The fragment should not add the view by itself.

Returns
`View?`	The foreground view for the onboarding screen, or `null`.

onCreateLogoAnimation

Added in 1.1.0

protected fun onCreateLogoAnimation(): Animator?

Called to have the inherited class create its own logo animation.

This is called only if the logo image resource ID is not set by setLogoResourceId. If this returns null, the logo animation is skipped.

Returns
`Animator?`	The `Animator` object which runs the logo animation.

onCreateTitleAnimator

Added in 1.1.0

protected fun onCreateTitleAnimator(): Animator

Provides the entry animation for title view. This allows users to override the default fade and slide animation. Returning null will disable the animation.

onFinishFragment

Added in 1.1.0

protected fun onFinishFragment(): Unit

Called when the onboarding flow finishes.

onLogoAnimationFinished

Added in 1.1.0

protected fun onLogoAnimationFinished(): Unit

Called immediately after the logo animation is complete or no logo animation is specified. This method can also be called when the activity is recreated, i.e. when no logo animation are performed. By default, this method will hide the logo view and start the entrance animation for this fragment. Overriding subclasses can provide their own data loading logic as to when the entrance animation should be executed.

onPageChanged

Added in 1.1.0

protected fun onPageChanged(newPage: Int, previousPage: Int): Unit

Called when the page has been changed.

Parameters
`newPage: Int`	The new page.
`previousPage: Int`	The previous page.

startEnterAnimation

Added in 1.1.0

protected fun startEnterAnimation(force: Boolean): Unit

Called to start entrance transition. This can be called by subclasses when the logo animation and data loading is complete. If force flag is set to false, it will only start the animation if it's not already done yet. Otherwise, it will always start the enter animation. In both cases, the logo view will hide and the rest of fragment views become visible after this call.

Parameters
`force: Boolean`	`true` if enter animation has to be performed regardless of whether it's been done in the past, `false` otherwise