LeanbackPreferenceDialogFragmentCompat

Kotlin |Java

open class LeanbackPreferenceDialogFragmentCompat : Fragment

kotlin.Any
↳	androidx.fragment.app.Fragment
	↳	androidx.leanback.preference.LeanbackPreferenceDialogFragmentCompat

Known Direct Subclasses LeanbackEditTextPreferenceDialogFragmentCompat, LeanbackListPreferenceDialogFragmentCompat LeanbackEditTextPreferenceDialogFragmentCompat Implemented a dialog to input text. LeanbackListPreferenceDialogFragmentCompat Implemented a dialog to show ListPreference or MultiSelectListPreference.

A fragment that shows DialogPreference, for example or androidx.preference.MultiSelectListPreference.

Summary

Constants
static String	ARG_KEY

Public constructors
<init>()

Public methods
open DialogPreference!	getPreference() The DialogPreference that this dialog is showing.
open Unit	onCreate(savedInstanceState: Bundle?)

Inherited functions

From class Fragment Unit dump(@NonNull prefix: String, @Nullable fd: FileDescriptor?, @NonNull writer: PrintWriter, @Nullable args: Array<String!>?) Print the Fragments's state into the given stream. Boolean equals(@Nullable other: Any?) Subclasses can not override equals(). FragmentActivity? getActivity() Return the FragmentActivity this fragment is currently associated with. May return null if the fragment is associated with a Context instead. Boolean getAllowEnterTransitionOverlap() Returns whether the the exit transition and enter transition overlap or not. When true, the enter transition will start as soon as possible. When false, the enter transition will wait until the exit transition completes before starting. Boolean getAllowReturnTransitionOverlap() Returns whether the the return transition and reenter transition overlap or not. When true, the reenter transition will start as soon as possible. When false, the reenter transition will wait until the return transition completes before starting. 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. ViewModelProvider.Factory getDefaultViewModelProviderFactory() Returns the default ViewModelProvider.Factory that should be used when no custom Factory is provided to the ViewModelProvider constructors. 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 factory. Any? getEnterTransition() Returns the Transition that will be used to move Views into the initial scene. The entering Views will be those that are regular Views or ViewGroups that have ViewGroup#isTransitionGroup return true. Typical Transitions will extend android.transition.Visibility as entering is governed by changing visibility from View#INVISIBLE to View#VISIBLE. 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. The exiting Views will be those that are regular Views or ViewGroups that have ViewGroup#isTransitionGroup return true. Typical Transitions will extend android.transition.Visibility as exiting is governed by changing visibility from View#VISIBLE to View#INVISIBLE. If transition is null, the views will remain unaffected. FragmentManager? getFragmentManager() Return the FragmentManager for interacting with fragments associated with this fragment's activity. Note that this will be non-null slightly before getActivity(), during the time from when the fragment is placed in a FragmentTransaction until it is committed and attached to its activity. If this Fragment is a child of another Fragment, the FragmentManager returned here will be the parent's getChildFragmentManager(). Any? getHost() Return the host object of this fragment. May return null if the fragment isn't currently being hosted. Int getId() Return the identifier this fragment is known by. This is either the android:id value supplied in a layout or the container view ID supplied when adding the fragment. LayoutInflater getLayoutInflater() Returns the cached LayoutInflater used to inflate Views of this Fragment. If onGetLayoutInflater(Bundle) has not been called onGetLayoutInflater(Bundle) will be called with a null argument and that value will be cached. The cached LayoutInflater will be replaced immediately prior to onCreateView(LayoutInflater, ViewGroup, Bundle) and cleared immediately after onDetach(). Lifecycle getLifecycle() Returns the Lifecycle of the provider. Overriding this method is no longer supported and this method will be made final in a future version of Fragment. LoaderManager getLoaderManager() Return the LoaderManager for this fragment. Fragment? getParentFragment() Returns the parent Fragment containing this Fragment. If this Fragment is attached directly to an Activity, returns null. FragmentManager getParentFragmentManager() Return the FragmentManager for interacting with fragments associated with this fragment's activity. Note that this will available slightly before getActivity(), during the time from when the fragment is placed in a FragmentTransaction until it is committed and attached to its activity. If this Fragment is a child of another Fragment, the FragmentManager returned here will be the parent's getChildFragmentManager(). Any? getReenterTransition() Returns the Transition that will be used to move Views in to the scene when returning due to popping a back stack. The entering Views will be those that are regular Views or ViewGroups that have ViewGroup#isTransitionGroup return true. Typical Transitions will extend android.transition.Visibility as exiting is governed by changing visibility from View#VISIBLE to View#INVISIBLE. If nothing is set, the default will be to use the same transition as getExitTransition(). Resources getResources() Return requireActivity().getResources(). Boolean getRetainInstance() Returns true if this fragment instance's state will be retained across configuration changes, and false if it will not. 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. The exiting Views will be those that are regular Views or ViewGroups that have ViewGroup#isTransitionGroup return true. Typical Transitions will extend android.transition.Visibility as entering is governed by changing visibility from View#VISIBLE to View#INVISIBLE. If nothing is set, the default will be to use the same transition as getEnterTransition(). SavedStateRegistry getSavedStateRegistry() Any? getSharedElementEnterTransition() Returns the Transition that will be used for shared elements transferred into the content Scene. Typical Transitions will affect size and location, such as android.transition.ChangeBounds. A null value will cause transferred shared elements to blink to the final position. Any? getSharedElementReturnTransition() Return the Transition that will be used for shared elements transferred back during a pop of the back stack. This Transition acts in the leaving Fragment. Typical Transitions will affect size and location, such as android.transition.ChangeBounds. A null value will cause transferred shared elements to blink to the final position. If no value is set, the default will be to use the same value as setSharedElementEnterTransition(Object). String getString(@StringRes resId: Int) Return a localized string from the application's package's default string table. String getString(@StringRes resId: Int, @Nullable vararg formatArgs: 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 java.lang.String#format. String? getTag() Get the tag name of the fragment, if specified. Fragment? getTargetFragment() Return the target fragment set by setTargetFragment. Int getTargetRequestCode() Return the target request code set by setTargetFragment. CharSequence getText(@StringRes resId: Int) Return a localized, styled CharSequence from the application's package's default string table. Boolean getUserVisibleHint() View? getView() Get the root view for the fragment's layout (the one returned by onCreateView), if provided. LifecycleOwner getViewLifecycleOwner() Get a LifecycleOwner that represents the Fragment's View lifecycle. In most cases, this mirrors the lifecycle of the Fragment itself, but in cases of detached Fragments, the lifecycle of the Fragment can be considerably longer than the lifecycle of the View itself. Namely, the lifecycle of the Fragment's View is: created after onViewStateRestored(Bundle) started after onStart() resumed after onResume() paused before onPause() stopped before onStop() destroyed before onDestroyView() The first method where it is safe to access the view lifecycle is onCreateView(LayoutInflater, ViewGroup, Bundle) under the condition that you must return a non-null view (an IllegalStateException will be thrown if you access the view lifecycle but don't return a non-null view). The view lifecycle remains valid through the call to onDestroyView(), after which getView() will return null, the view lifecycle will be destroyed, and this method will throw an IllegalStateException. Consider using getViewLifecycleOwnerLiveData() or FragmentTransaction#runOnCommit(Runnable) to receive a callback for when the Fragment's view lifecycle is available. This should only be called on the main thread. Overriding this method is no longer supported and this method will be made final in a future version of Fragment. LiveData<LifecycleOwner!> getViewLifecycleOwnerLiveData() Retrieve a LiveData which allows you to observe the lifecycle of the Fragment's View. This will be set to the new LifecycleOwner after onCreateView returns a non-null View and will set to null after onDestroyView(). Overriding this method is no longer supported and this method will be made final in a future version of Fragment. ViewModelStore getViewModelStore() Returns the ViewModelStore associated with this Fragment Overriding this method is no longer supported and this method will be made final in a future version of Fragment. Int hashCode() Subclasses can not override hashCode(). Fragment instantiate(@NonNull context: Context, @NonNull fname: String) Like instantiate(Context, String, Bundle) but with a null argument Bundle. Fragment instantiate(@NonNull context: Context, @NonNull fname: String, @Nullable args: Bundle?) Create a new instance of a Fragment with the given class name. This is the same as calling its empty constructor, setting the ClassLoader on the supplied arguments, then calling setArguments(Bundle). 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. That is, FragmentTransaction.detach(Fragment) has been used on it. Boolean isHidden() Return true if the fragment has been hidden. By default fragments are shown. You can find out about changes to this state with onHiddenChanged. Note that the hidden state is orthogonal to other states -- that is, to be visible to the user, a fragment must be both started and not hidden. Boolean isInLayout() Return true if the layout is included as part of an activity view hierarchy via the <fragment> tag. This will always be true when fragments are created through the <fragment> tag, except in the case where an old fragment is restored from a previous state and it does not appear in the layout of the current state. Boolean isRemoving() Return true if this fragment is currently being removed from its activity. This is not whether its activity is finishing, but rather whether it is in the process of being removed from its activity. Boolean isResumed() Return true if the fragment is in the resumed state. This is true for the duration of onResume() and onPause() as well. Boolean isStateSaved() Returns true if this fragment is added and its state has already been saved by its host. Any operations that would change saved state should not be performed if this method returns true, and some operations such as setArguments(Bundle) will fail. Boolean isVisible() Return true if the fragment is currently visible to the user. This means it: (1) has been added, (2) has its view attached to the window, and (3) is not hidden. Unit onActivityCreated(@Nullable savedInstanceState: Bundle?) Called when the fragment's activity has been created and this fragment's view hierarchy instantiated. It can be used to do final initialization once these pieces are in place, such as retrieving views or restoring state. It is also useful for fragments that use setRetainInstance(boolean) to retain their instance, as this callback tells the fragment when it is fully associated with the new activity instance. This is called after onCreateView and before onViewStateRestored(Bundle). Unit onActivityResult(requestCode: Int, resultCode: Int, @Nullable data: Intent?) Receive the result from a previous call to startActivityForResult(Intent, int). This follows the related Activity API as described there in Activity#onActivityResult(int, int, Intent). Unit onAttach(@NonNull context: Context) Called when a fragment is first attached to its context. onCreate(Bundle) will be called after this. Unit onAttach(@NonNull activity: Activity) Called when a fragment is first attached to its activity. onCreate(Bundle) will be called after this. Unit onAttachFragment(@NonNull childFragment: Fragment) Called when a fragment is attached as a child of this fragment. This is called after the attached fragment's onAttach and before the attached fragment's onCreate if the fragment has not yet had a previous call to onCreate. Unit onConfigurationChanged(@NonNull newConfig: Configuration) Boolean onContextItemSelected(@NonNull item: MenuItem) This hook is called whenever an item in a context menu is selected. The default implementation simply returns false to have the normal processing happen (calling the item's Runnable or sending a message to its Handler as appropriate). You can use this method for any items for which you would like to do processing without those other facilities. Use MenuItem#getMenuInfo() to get extra information set by the View that added this menu item. Derived classes should call through to the base class for it to perform the default menu handling. Animation? onCreateAnimation(transit: Int, enter: Boolean, nextAnim: Int) Called when a fragment loads an animation. Note that if FragmentTransaction#setCustomAnimations(int, int) was called with Animator resources instead of Animation resources, nextAnim will be an animator resource. Animator? onCreateAnimator(transit: Int, enter: Boolean, nextAnim: Int) Called when a fragment loads an animator. This will be called when onCreateAnimation(int, boolean, int) returns null. Note that if FragmentTransaction#setCustomAnimations(int, int) was called with Animation resources instead of Animator resources, nextAnim will be an animation resource. Unit onCreateContextMenu(@NonNull menu: ContextMenu, @NonNull v: View, @Nullable menuInfo: ContextMenuInfo?) Called when a context menu for the view is about to be shown. Unlike onCreateOptionsMenu, this will be called every time the context menu is about to be shown and should be populated for the view (or item inside the view for AdapterView subclasses, this can be found in the menuInfo)). Use onContextItemSelected(android.view.MenuItem) to know when an item has been selected. The default implementation calls up to Activity.onCreateContextMenu, though you can not call this implementation if you don't want that behavior. It is not safe to hold onto the context menu after this method returns. Unit onCreateOptionsMenu(@NonNull menu: Menu, @NonNull inflater: MenuInflater) Initialize the contents of the Fragment host's standard options menu. You should place your menu items in to menu. For this method to be called, you must have first called setHasOptionsMenu. See Activity.onCreateOptionsMenu for more information. View? onCreateView(@NonNull inflater: LayoutInflater, @Nullable container: ViewGroup?, @Nullable savedInstanceState: Bundle?) 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(Bundle) and onViewCreated(View, Bundle). A default View can be returned by calling Fragment(int) 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(View, Bundle). If you return a View from here, you will later be called in onDestroyView when the view is being released. Unit onDestroy() Called when the fragment is no longer in use. This is called after onStop() and before onDetach().