BaseFragment

Added in 1.1.0

Deprecated in 1.1.0

Kotlin |Java

class BaseFragment : BrandedFragment

kotlin.Any
↳	android.app.Fragment
	↳	androidx.leanback.app.BrandedFragment
		↳	androidx.leanback.app.BaseFragment

Known direct subclasses

BrowseFragment, DetailsFragment, VerticalGridFragment

BrowseFragment

This class is deprecated.

use BrowseSupportFragment

DetailsFragment

This class is deprecated.

use DetailsSupportFragment

VerticalGridFragment

This class is deprecated.

use VerticalGridSupportFragment

Base class for leanback Fragments. This class is not intended to be subclassed by apps.

Summary

Public functions
`ProgressBarManager!`	`getProgressBarManager()` Returns the `ProgressBarManager`.
`Unit`	`onCreate(savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`onDestroyView()` This function is deprecated.
`Unit`	`onViewCreated(view: View, savedInstanceState: Bundle?)` This function is deprecated.
`Unit`	`prepareEntranceTransition()` Enables entrance transition.
`Unit`	`startEntranceTransition()` When fragment finishes loading data, it should call startEntranceTransition() to execute the entrance transition. startEntranceTransition() will start transition only if both two conditions are satisfied:

Protected functions
`Any!`	`createEntranceTransition()` Create entrance transition.
`Unit`	`onEntranceTransitionEnd()` Callback when entrance transition is ended.
`Unit`	`onEntranceTransitionPrepare()` Callback when entrance transition is prepared.
`Unit`	`onEntranceTransitionStart()` Callback when entrance transition is started.
`Unit`	`runEntranceTransition(entranceTransition: Any!)` Run entrance transition.

Inherited Constants

From android.content.ComponentCallbacks2

`const Int`	`TRIM_MEMORY_BACKGROUND = 40`
`const Int`	`TRIM_MEMORY_COMPLETE = 80`
`const Int`	`TRIM_MEMORY_MODERATE = 60`
`const Int`	`TRIM_MEMORY_RUNNING_CRITICAL = 15`
`const Int`	`TRIM_MEMORY_RUNNING_LOW = 10`
`const Int`	`TRIM_MEMORY_RUNNING_MODERATE = 5`
`const Int`	`TRIM_MEMORY_UI_HIDDEN = 20`

Inherited functions

From androidx.leanback.app.BrandedFragment

`Drawable?`	`getBadgeDrawable()` Returns the badge drawable used in the fragment title.
`Int`	`getSearchAffordanceColor()` Returns the color used to draw the search affordance.
`SearchOrbView.Colors?`	`getSearchAffordanceColors()` Returns the `androidx.leanback.widget.SearchOrbView.Colors` used to draw the search affordance.
`CharSequence?`	`getTitle()` Returns the title text for the fragment.
`View?`	`getTitleView()` Returns the view that implements `TitleViewAdapter.Provider`.
`TitleViewAdapter?`	`getTitleViewAdapter()` Returns the `TitleViewAdapter` implemented by title view.
`Unit`	`installTitleView( inflater: LayoutInflater, parent: ViewGroup, savedInstanceState: Bundle? )` Inflate title view and add to parent.
`Boolean`	`isShowingTitle()` Returns true/false to indicate the visibility of TitleView.
`View`	`onInflateTitleView( inflater: LayoutInflater, parent: ViewGroup?, savedInstanceState: Bundle? )` Called by `installTitleView` to inflate title view.
`Unit`	`onPause()` This function is deprecated.
`Unit`	`onResume()` This function is deprecated.
`Unit`	`onSaveInstanceState(outState: Bundle!)` This function is deprecated.
`Unit`	`onStart()` This function is deprecated.
`Unit`	`setBadgeDrawable(drawable: Drawable?)` Sets the drawable displayed in the fragment title.
`Unit`	`setOnSearchClickedListener(listener: View.OnClickListener?)` Sets a click listener for the search affordance.
`Unit`	`setSearchAffordanceColor(color: Int)` Sets the color used to draw the search affordance.
`Unit`	`setSearchAffordanceColors(colors: SearchOrbView.Colors)` Sets the `androidx.leanback.widget.SearchOrbView.Colors` used to draw the search affordance.
`Unit`	`setTitle(title: CharSequence?)` Sets title text for the fragment.
`Unit`	`setTitleView(titleView: View?)` Sets the view that implemented `TitleViewAdapter`.
`Unit`	`showTitle(flags: Int)` Changes title view's components visibility and shows title.
`Unit`	`showTitle(show: Boolean)` Shows or hides the title view.

From android.app.Fragment

`Unit`	`dump( prefix: String!, fd: FileDescriptor!, writer: PrintWriter!, args: Array<String!>! )` This function is deprecated.
`Boolean`	`equals(o: Any!)` This function is deprecated.
`Activity!`	`getActivity()` This function is deprecated.
`Boolean`	`getAllowEnterTransitionOverlap()` This function is deprecated.
`Boolean`	`getAllowReturnTransitionOverlap()` This function is deprecated.
`Bundle!`	`getArguments()` This function is deprecated.
`FragmentManager!`	`getChildFragmentManager()` This function is deprecated.
`Context!`	`getContext()` This function is deprecated.
`Transition!`	`getEnterTransition()` This function is deprecated.
`Transition!`	`getExitTransition()` This function is deprecated.
`FragmentManager!`	`getFragmentManager()` This function is deprecated.
`Any!`	`getHost()` This function is deprecated.
`Int`	`getId()` This function is deprecated.
`LayoutInflater!`	`getLayoutInflater()` This function is deprecated.
`LoaderManager!`	`getLoaderManager()` This function is deprecated.
`Fragment!`	`getParentFragment()` This function is deprecated.
`Transition!`	`getReenterTransition()` This function is deprecated.
`Resources!`	`getResources()` This function is deprecated.
`Boolean`	`getRetainInstance()` This function is deprecated.
`Transition!`	`getReturnTransition()` This function is deprecated.
`Transition!`	`getSharedElementEnterTransition()` This function is deprecated.
`Transition!`	`getSharedElementReturnTransition()` This function is deprecated.
`String!`	`getString(resId: Int)` This function is deprecated.
`String!`	`getTag()` This function is deprecated.
`Fragment!`	`getTargetFragment()` This function is deprecated.
`Int`	`getTargetRequestCode()` This function is deprecated.
`CharSequence!`	`getText(resId: Int)` This function is deprecated.
`Boolean`	`getUserVisibleHint()` This function is deprecated.
`View!`	`getView()` This function is deprecated.
`Int`	`hashCode()` This function is deprecated.
`java-static Fragment!`	`instantiate(context: Context!, fname: String!)` This function is deprecated.
`Boolean`	`isAdded()` This function is deprecated.
`Boolean`	`isDetached()` This function is deprecated.
`Boolean`	`isHidden()` This function is deprecated.
`Boolean`	`isInLayout()` This function is deprecated.
`Boolean`	`isRemoving()` This function is deprecated.
`Boolean`	`isResumed()` This function is deprecated.
`Boolean`	`isStateSaved()` This function is deprecated.
`Boolean`	`isVisible()` This function is deprecated.
`Unit`	`onActivityCreated(savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`onActivityResult(requestCode: Int, resultCode: Int, data: Intent!)` This function is deprecated.
`Unit`	`onAttach(context: Context!)` This function is deprecated.
`Unit`	`onAttachFragment(childFragment: Fragment!)` This function is deprecated.
`Unit`	`onConfigurationChanged(newConfig: Configuration!)` This function is deprecated.
`Boolean`	`onContextItemSelected(item: MenuItem!)` This function is deprecated.
`Animator!`	`onCreateAnimator(transit: Int, enter: Boolean, nextAnim: Int)` This function is deprecated.
`Unit`	`onCreateContextMenu( menu: ContextMenu!, v: View!, menuInfo: ContextMenu.ContextMenuInfo! )` This function is deprecated.
`Unit`	`onCreateOptionsMenu(menu: Menu!, inflater: MenuInflater!)` This function is deprecated.
`View!`	`onCreateView( inflater: LayoutInflater!, container: ViewGroup!, savedInstanceState: Bundle! )` This function is deprecated.
`Unit`	`onDestroy()` This function is deprecated.
`Unit`	`onDestroyOptionsMenu()` This function is deprecated.
`Unit`	`onDestroyView()` This function is deprecated.
`Unit`	`onDetach()` This function is deprecated.
`LayoutInflater!`	`onGetLayoutInflater(savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`onHiddenChanged(hidden: Boolean)` This function is deprecated.
`Unit`	`onInflate(attrs: AttributeSet!, savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`onLowMemory()` This function is deprecated.
`Unit`	`onMultiWindowModeChanged( isInMultiWindowMode: Boolean, newConfig: Configuration! )` This function is deprecated.
`Boolean`	`onOptionsItemSelected(item: MenuItem!)` This function is deprecated.
`Unit`	`onOptionsMenuClosed(menu: Menu!)` This function is deprecated.
`Unit`	`onPause()` This function is deprecated.
`Unit`	`onPictureInPictureModeChanged( isInPictureInPictureMode: Boolean, newConfig: Configuration! )` This function is deprecated.
`Unit`	`onPrepareOptionsMenu(menu: Menu!)` This function is deprecated.
`Unit`	`onRequestPermissionsResult( requestCode: Int, permissions: Array<String!>!, grantResults: IntArray! )` This function is deprecated.
`Unit`	`onResume()` This function is deprecated.
`Unit`	`onSaveInstanceState(outState: Bundle!)` This function is deprecated.
`Unit`	`onStart()` This function is deprecated.
`Unit`	`onStop()` This function is deprecated.
`Unit`	`onTrimMemory(level: Int)` This function is deprecated.
`Unit`	`onViewCreated(view: View!, savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`onViewStateRestored(savedInstanceState: Bundle!)` This function is deprecated.
`Unit`	`postponeEnterTransition()` This function is deprecated.
`Unit`	`registerForContextMenu(view: View!)` This function is deprecated.
`Unit`	`requestPermissions(permissions: Array<String!>!, requestCode: Int)` This function is deprecated.
`Unit`	`setAllowEnterTransitionOverlap(allow: Boolean)` This function is deprecated.
`Unit`	`setAllowReturnTransitionOverlap(allow: Boolean)` This function is deprecated.
`Unit`	`setArguments(args: Bundle!)` This function is deprecated.
`Unit`	`setEnterSharedElementCallback(callback: SharedElementCallback!)` This function is deprecated.
`Unit`	`setEnterTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setExitSharedElementCallback(callback: SharedElementCallback!)` This function is deprecated.
`Unit`	`setExitTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setHasOptionsMenu(hasMenu: Boolean)` This function is deprecated.
`Unit`	`setInitialSavedState(state: Fragment.SavedState!)` This function is deprecated.
`Unit`	`setMenuVisibility(menuVisible: Boolean)` This function is deprecated.
`Unit`	`setReenterTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setRetainInstance(retain: Boolean)` This function is deprecated.
`Unit`	`setReturnTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setSharedElementEnterTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setSharedElementReturnTransition(transition: Transition!)` This function is deprecated.
`Unit`	`setTargetFragment(fragment: Fragment!, requestCode: Int)` This function is deprecated.
`Unit`	`setUserVisibleHint(isVisibleToUser: Boolean)` This function is deprecated.
`Boolean`	`shouldShowRequestPermissionRationale(permission: String!)` This function is deprecated.
`Unit`	`startActivity(intent: Intent!)` This function is deprecated.
`Unit`	`startActivityForResult(intent: Intent!, requestCode: Int)` This function is deprecated.
`Unit`	`startIntentSenderForResult( intent: IntentSender!, requestCode: Int, fillInIntent: Intent!, flagsMask: Int, flagsValues: Int, extraFlags: Int, options: Bundle! )` This function is deprecated.
`Unit`	`startPostponedEnterTransition()` This function is deprecated.
`String!`	`toString()` This function is deprecated.
`Unit`	`unregisterForContextMenu(view: View!)` This function is deprecated.

Public functions

getProgressBarManager

Added in 1.1.0

Deprecated in 1.1.0

fun getProgressBarManager(): ProgressBarManager!

Returns the ProgressBarManager.

Returns
`ProgressBarManager!`	The `ProgressBarManager`.

onCreate

Added in 1.1.0

Deprecated in 1.1.0

fun onCreate(savedInstanceState: Bundle!): Unit

onDestroyView

fun onDestroyView(): Unit

onViewCreated

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

prepareEntranceTransition

Added in 1.1.0

Deprecated in 1.1.0

fun prepareEntranceTransition(): Unit

Enables entrance transition.

Entrance transition is the standard slide-in transition that shows rows of data in browse screen and details screen.

The method is ignored before LOLLIPOP (API21).

This method must be called in or before onCreate(). Typically entrance transition should be enabled when savedInstance is null so that fragment restored from instanceState does not run an extra entrance transition. When the entrance transition is enabled, the fragment will make headers and content hidden initially. When data of rows are ready, app must call startEntranceTransition to kick off the transition, otherwise the rows will be invisible forever.

It is similar to android:windowsEnterTransition and can be considered a late-executed android:windowsEnterTransition controlled by app. There are two reasons that app needs it:

Workaround the problem that activity transition is not available between launcher and app. Browse activity must programmatically start the slide-in transition.
Separates DetailsOverviewRow transition from other rows transition. So that the DetailsOverviewRow transition can be executed earlier without waiting for all rows to be loaded.

Transition object is returned by createEntranceTransition(). Typically the app does not need override the default transition that browse and details provides.

startEntranceTransition

Added in 1.1.0

Deprecated in 1.1.0

fun startEntranceTransition(): Unit

When fragment finishes loading data, it should call startEntranceTransition() to execute the entrance transition. startEntranceTransition() will start transition only if both two conditions are satisfied:

prepareEntranceTransition() was called.
has not executed entrance transition yet.

If startEntranceTransition() is called before onViewCreated(), it will be pending and executed when view is created.

Protected functions

createEntranceTransition

Added in 1.1.0

Deprecated in 1.1.0

protected fun createEntranceTransition(): Any!

Create entrance transition. Subclass can override to load transition from resource or construct manually. Typically app does not need to override the default transition that browse and details provides.

onEntranceTransitionEnd

Added in 1.1.0

Deprecated in 1.1.0

protected fun onEntranceTransitionEnd(): Unit

Callback when entrance transition is ended.

onEntranceTransitionPrepare

Added in 1.1.0

Deprecated in 1.1.0

protected fun onEntranceTransitionPrepare(): Unit

Callback when entrance transition is prepared. This is when fragment should stop user input and animations.

onEntranceTransitionStart

Added in 1.1.0

Deprecated in 1.1.0

protected fun onEntranceTransitionStart(): Unit

Callback when entrance transition is started. This is when fragment should stop processing layout.

runEntranceTransition

Added in 1.1.0

Deprecated in 1.1.0

protected fun runEntranceTransition(entranceTransition: Any!): Unit

Run entrance transition. Subclass may use TransitionManager to perform go(Scene) or beginDelayedTransition(). App should not override the default implementation of browse and details fragment.