MediaRouteDiscoveryFragment

Artifact: androidx.mediarouter:mediarouter

Added in 1.1.0

Kotlin |Java

public class MediaRouteDiscoveryFragment extends Fragment

java.lang.Object
↳	androidx.fragment.app.Fragment
	↳	androidx.mediarouter.app.MediaRouteDiscoveryFragment

Media route discovery fragment.

This fragment takes care of registering a callback with proper flags for media route discovery:

In onCreate phase, the callback is registered with zero flags.
In onStart phase, the callback's flags are set to the value which is provided by onPrepareCallbackFlags.
In onStop phase, the callback's flags are set to zero.

The application must supply a route selector to specify the kinds of routes to discover. The application may also override onCreateCallback to provide the MediaRouter callback to register.

Note that the discovery callback makes the application be connected with all the media route provider services while it is registered.

Summary

Public constructors
`MediaRouteDiscoveryFragment()`

Public methods
`@NonNull MediaRouter`	`getMediaRouter()` Gets the media router instance.
`@NonNull MediaRouteSelector`	`getRouteSelector()` Gets the media route selector for filtering the routes to be discovered.
`void`	`onCreate(@Nullable Bundle savedInstanceState)` Called to do initial creation of a fragment.
`@Nullable MediaRouter.Callback`	`onCreateCallback()` Called to create the `callback` that will be registered.
`void`	`onDestroy()` Called when the fragment is no longer in use.
`int`	`onPrepareCallbackFlags()` Called to prepare the callback flags that will be used when the `callback` is registered.
`void`	`onStart()` Called when the Fragment is visible to the user.
`void`	`onStop()` Called when the Fragment is no longer started.
`void`	`setRouteSelector(@NonNull MediaRouteSelector selector)` Sets the media route selector for filtering the routes to be discovered.

Inherited methods

From androidx.activity.result.ActivityResultCaller

abstract ActivityResultLauncher<I>

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

From android.content.ComponentCallbacks

`abstract void`	`onConfigurationChanged(Configuration p)`
`abstract void`	`onLowMemory()`

From androidx.fragment.app.Fragment

`void`	`dump( @NonNull String prefix, @Nullable FileDescriptor fd, @NonNull PrintWriter writer, @Nullable String[] args )` Print the Fragments's state into the given stream.
`final boolean`	`equals(@Nullable Object o)` Subclasses can not override equals().
`final @Nullable 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.
`final @Nullable Bundle`	`getArguments()` Return the arguments supplied when the fragment was instantiated, if any.
`final @NonNull FragmentManager`	`getChildFragmentManager()` Return a private FragmentManager for placing and managing Fragments inside of this Fragment.
`@Nullable Context`	`getContext()` Return the `Context` this fragment is currently associated with.
`@NonNull 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.
`@NonNull ViewModelProvider.Factory`	`getDefaultViewModelProviderFactory()`
`@Nullable Object`	`getEnterTransition()` Returns the Transition that will be used to move Views into the initial scene.
`@Nullable Object`	`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.
`final @Nullable FragmentManager`	`getFragmentManager()` This method is deprecated. This has been removed in favor of `getParentFragmentManager()` which throws an `IllegalStateException` if the FragmentManager is null.
`final @Nullable Object`	`getHost()` Return the host object of this fragment.
`final int`	`getId()` Return the identifier this fragment is known by.
`final @NonNull LayoutInflater`	`getLayoutInflater()` Returns the cached LayoutInflater used to inflate Views of this Fragment.
`@NonNull Lifecycle`	`getLifecycle()` Overriding this method is no longer supported and this method will be made `final` in a future version of Fragment.
`@NonNull LoaderManager`	`getLoaderManager()` This method is deprecated. Use `LoaderManager.getInstance(this)`.
`final @Nullable Fragment`	`getParentFragment()` Returns the parent Fragment containing this Fragment.
`final @NonNull FragmentManager`	`getParentFragmentManager()` Return the FragmentManager for interacting with fragments associated with this fragment's activity.
`@Nullable Object`	`getReenterTransition()` Returns the Transition that will be used to move Views in to the scene when returning due to popping a back stack.
`final @NonNull Resources`	`getResources()` Return `requireActivity().getResources()`.
`final boolean`	`getRetainInstance()` This method is deprecated. Instead of retaining the Fragment itself, use a non-retained Fragment and keep retained state in a ViewModel attached to that Fragment.
`@Nullable Object`	`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.
`final @NonNull SavedStateRegistry`	`getSavedStateRegistry()`
`@Nullable Object`	`getSharedElementEnterTransition()` Returns the Transition that will be used for shared elements transferred into the content Scene.
`@Nullable Object`	`getSharedElementReturnTransition()` Return the Transition that will be used for shared elements transferred back during a pop of the back stack.
`final @NonNull String`	`getString(@StringRes int resId)` Return a localized string from the application's package's default string table.
`final @NonNull String`	`getString(@StringRes int resId, @Nullable Object[] formatArgs)` 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.
`final @Nullable String`	`getTag()` Get the tag name of the fragment, if specified.
`final @Nullable Fragment`	`getTargetFragment()` This method 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`.
`final int`	`getTargetRequestCode()` This method 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.
`final @NonNull CharSequence`	`getText(@StringRes int resId)` Return a localized, styled CharSequence from the application's package's default string table.
`boolean`	`getUserVisibleHint()` This method is deprecated. Use `setMaxLifecycle` instead.
`@Nullable View`	`getView()` Get the root view for the fragment's layout (the one returned by `onCreateView`), if provided.
`@NonNull LifecycleOwner`	`@MainThread getViewLifecycleOwner()` Get a `LifecycleOwner` that represents the `Fragment's View` lifecycle.
`@NonNull LiveData<LifecycleOwner>`	`getViewLifecycleOwnerLiveData()` Retrieve a `LiveData` which allows you to observe the `lifecycle of the Fragment's View`.
`@NonNull ViewModelStore`	`getViewModelStore()` Returns the `ViewModelStore` associated with this Fragment
`final int`	`hashCode()` Subclasses can not override hashCode().
`static @NonNull Fragment`	`instantiate(@NonNull Context context, @NonNull String fname)` This method is deprecated. Use `getFragmentFactory` and `instantiate`
`static @NonNull Fragment`	`instantiate( @NonNull Context context, @NonNull String fname, @Nullable Bundle args )` This method is deprecated. Use `getFragmentFactory` and `instantiate`, manually calling `setArguments` on the returned Fragment.
`final boolean`	`isAdded()` Return true if the fragment is currently added to its activity.
`final boolean`	`isDetached()` Return true if the fragment has been explicitly detached from the UI.
`final boolean`	`isHidden()` Return true if the fragment has been hidden.
`final boolean`	`isInLayout()` Return true if the layout is included as part of an activity view hierarchy via the tag.
`final boolean`	`isRemoving()` Return true if this fragment is currently being removed from its activity.
`final boolean`	`isResumed()` Return true if the fragment is in the resumed state.
`final boolean`	`isStateSaved()` Returns true if this fragment is added and its state has already been saved by its host.
`final boolean`	`isVisible()` Return true if the fragment is currently visible to the user.
`void`	`@MainThread @CallSuper onActivityCreated(@Nullable Bundle savedInstanceState)` This method is deprecated. use `onViewCreated` for code touching the view created by `onCreateView` and `onCreate` for other initialization.
`void`	`onActivityResult(int requestCode, int resultCode, @Nullable Intent data)` This method 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.
`void`	`@MainThread @CallSuper onAttach(@NonNull Activity activity)` This method is deprecated. See `onAttach`.
`void`	`@MainThread @CallSuper onAttach(@NonNull Context context)` Called when a fragment is first attached to its context.
`void`	`@MainThread onAttachFragment(@NonNull Fragment childFragment)` This method is deprecated. The responsibility for listening for fragments being attached has been moved to FragmentManager.
`void`	`@CallSuper onConfigurationChanged(@NonNull Configuration newConfig)`
`boolean`	`@MainThread onContextItemSelected(@NonNull MenuItem item)` This hook is called whenever an item in a context menu is selected.
`@Nullable Animation`	`@MainThread onCreateAnimation(int transit, boolean enter, int nextAnim)` Called when a fragment loads an animation.
`@Nullable Animator`	`@MainThread onCreateAnimator(int transit, boolean enter, int nextAnim)` Called when a fragment loads an animator.
`void`	`@MainThread onCreateContextMenu( @NonNull ContextMenu menu, @NonNull View v, @Nullable ContextMenu.ContextMenuInfo menuInfo )` Called when a context menu for the `view` is about to be shown.
`void`	`@MainThread onCreateOptionsMenu(@NonNull Menu menu, @NonNull MenuInflater inflater)` This method 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.
`@Nullable View`	`@MainThread onCreateView( @NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState )` Called to have the fragment instantiate its user interface view.
`void`	`@MainThread onDestroyOptionsMenu()` This method 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.
`void`	`@MainThread @CallSuper onDestroyView()` Called when the view previously created by `onCreateView` has been detached from the fragment.
`void`	`@MainThread @CallSuper onDetach()` Called when the fragment is no longer attached to its activity.
`@NonNull LayoutInflater`	`onGetLayoutInflater(@Nullable Bundle savedInstanceState)` Returns the LayoutInflater used to inflate Views of this Fragment.
`void`	`@MainThread onHiddenChanged(boolean hidden)` Called when the hidden state (as returned by `isHidden` of the fragment or another fragment in its hierarchy has changed.
`void`	`@UiThread @CallSuper onInflate( @NonNull Activity activity, @NonNull AttributeSet attrs, @Nullable Bundle savedInstanceState )` This method is deprecated. See `onInflate`.
`void`	`@UiThread @CallSuper onInflate( @NonNull Context context, @NonNull AttributeSet attrs, @Nullable Bundle savedInstanceState )` Called when a fragment is being created as part of a view layout inflation, typically from setting the content view of an activity.
`void`	`@MainThread @CallSuper onLowMemory()`
`void`	`onMultiWindowModeChanged(boolean isInMultiWindowMode)` Called when the Fragment's activity changes from fullscreen mode to multi-window mode and visa-versa.
`boolean`	`@MainThread onOptionsItemSelected(@NonNull MenuItem item)` This method 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.
`void`	`@MainThread onOptionsMenuClosed(@NonNull Menu menu)` This method 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.
`void`	`@MainThread @CallSuper onPause()` Called when the Fragment is no longer resumed.
`void`	`onPictureInPictureModeChanged(boolean isInPictureInPictureMode)` Called by the system when the activity changes to and from picture-in-picture mode.
`void`	`@MainThread onPrepareOptionsMenu(@NonNull Menu menu)` This method 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.
`void`	`@MainThread onPrimaryNavigationFragmentChanged( boolean isPrimaryNavigationFragment )` Callback for when the primary navigation state of this Fragment has changed.
`void`	`onRequestPermissionsResult( int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults )` This method 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.
`void`	`@MainThread @CallSuper onResume()` Called when the fragment is visible to the user and actively running.
`void`	`@MainThread onSaveInstanceState(@NonNull Bundle outState)` 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.
`void`	`@MainThread onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState)` Called immediately after `onCreateView` has returned, but before any saved state has been restored in to the view.
`void`	`@MainThread @CallSuper onViewStateRestored(@Nullable Bundle savedInstanceState)` Called when all saved state has been restored into the view hierarchy of the fragment.
`void`	`postponeEnterTransition()` Postpone the entering Fragment transition until `startPostponedEnterTransition` or `executePendingTransactions` has been called.
`final void`	`postponeEnterTransition(long duration, @NonNull TimeUnit timeUnit)` Postpone the entering Fragment transition for a given amount of time and then call `startPostponedEnterTransition`.
`final @NonNull ActivityResultLauncher<I>`	`@MainThread <I, O> registerForActivityResult( @NonNull ActivityResultContract<I, O> contract, @NonNull ActivityResultCallback<O> callback )` Register a request to `start an activity for result`, designated by the given `contract`.
`final @NonNull ActivityResultLauncher<I>`	`@MainThread <I, O> registerForActivityResult( @NonNull ActivityResultContract<I, O> contract, @NonNull ActivityResultRegistry registry, @NonNull ActivityResultCallback<O> callback )` Register a request to `start an activity for result`, designated by the given `contract`.
`void`	`registerForContextMenu(@NonNull View view)` Registers a context menu to be shown for the given view (multiple views can show the context menu).
`final void`	`requestPermissions(@NonNull String[] permissions, int requestCode)` This method 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.
`final @NonNull FragmentActivity`	`requireActivity()` Return the `FragmentActivity` this fragment is currently associated with.
`final @NonNull Bundle`	`requireArguments()` Return the arguments supplied when the fragment was instantiated.
`final @NonNull Context`	`requireContext()` Return the `Context` this fragment is currently associated with.
`final @NonNull FragmentManager`	`requireFragmentManager()` This method 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.
`final @NonNull Object`	`requireHost()` Return the host object of this fragment.
`final @NonNull Fragment`	`requireParentFragment()` Returns the parent Fragment containing this Fragment.
`final @NonNull View`	`requireView()` Get the root view for the fragment's layout (the one returned by `onCreateView`).
`void`	`setAllowEnterTransitionOverlap(boolean allow)` Sets whether the the exit transition and enter transition overlap or not.
`void`	`setAllowReturnTransitionOverlap(boolean allow)` Sets whether the the return transition and reenter transition overlap or not.
`void`	`setArguments(@Nullable Bundle args)` Supply the construction arguments for this fragment.
`void`	`setEnterSharedElementCallback(@Nullable SharedElementCallback callback)` 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.
`void`	`setEnterTransition(@Nullable Object transition)` Sets the Transition that will be used to move Views into the initial scene.
`void`	`setExitSharedElementCallback(@Nullable SharedElementCallback callback)` 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.
`void`	`setExitTransition(@Nullable Object transition)` 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.
`void`	`setHasOptionsMenu(boolean hasMenu)` This method 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.
`void`	`setInitialSavedState(@Nullable Fragment.SavedState state)` Set the initial saved state that this Fragment should restore itself from when first being constructed, as returned by `FragmentManager.saveFragmentInstanceState`.
`void`	`setMenuVisibility(boolean menuVisible)` Set a hint for whether this fragment's menu should be visible.
`void`	`setReenterTransition(@Nullable Object transition)` Sets the Transition that will be used to move Views in to the scene when returning due to popping a back stack.
`void`	`setRetainInstance(boolean retain)` This method is deprecated. Instead of retaining the Fragment itself, use a non-retained Fragment and keep retained state in a ViewModel attached to that Fragment.
`void`	`setReturnTransition(@Nullable Object transition)` 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.
`void`	`setSharedElementEnterTransition(@Nullable Object transition)` Sets the Transition that will be used for shared elements transferred into the content Scene.
`void`	`setSharedElementReturnTransition(@Nullable Object transition)` Sets the Transition that will be used for shared elements transferred back during a pop of the back stack.
`void`	`setTargetFragment(@Nullable Fragment fragment, int requestCode)` This method 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`.
`void`	`setUserVisibleHint(boolean isVisibleToUser)` This method is deprecated. If you are manually calling this method, use `setMaxLifecycle` instead.
`boolean`	`shouldShowRequestPermissionRationale(@NonNull String permission)` Gets whether you should show UI with rationale before requesting a permission.
`void`	`startActivity(@NonNull Intent intent)` Call startActivity from the fragment's containing Activity.
`void`	`startActivity(@NonNull Intent intent, @Nullable Bundle options)` Call startActivity from the fragment's containing Activity.
`void`	`startActivityForResult(@NonNull Intent intent, int requestCode)` This method 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.
`void`	`startActivityForResult( @NonNull Intent intent, int requestCode, @Nullable Bundle options )` This method 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.
`void`	`startIntentSenderForResult( @NonNull IntentSender intent, int requestCode, @Nullable Intent fillInIntent, int flagsMask, int flagsValues, int extraFlags, @Nullable Bundle options )` This method 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.
`void`	`startPostponedEnterTransition()` Begin postponed transitions after `postponeEnterTransition` was called.
`@NonNull String`	`toString()`
`void`	`unregisterForContextMenu(@NonNull 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 void

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

From androidx.lifecycle.ViewModelStoreOwner

abstract ViewModelStore

getViewModelStore()

Public constructors

MediaRouteDiscoveryFragment

Added in 1.1.0

public MediaRouteDiscoveryFragment()

Public methods

getMediaRouter

Added in 1.1.0

public @NonNull MediaRouter getMediaRouter()

Gets the media router instance.

getRouteSelector

Added in 1.1.0

public @NonNull MediaRouteSelector getRouteSelector()

Gets the media route selector for filtering the routes to be discovered.

Returns
`@NonNull MediaRouteSelector`	The selector, never null.

onCreate

public void onCreate(@Nullable Bundle savedInstanceState)

Called to do initial creation of a fragment. This is called after onAttach and before onCreateView.

Note that this can be called while the fragment's activity is still in the process of being created. As such, you can not rely on things like the activity's content view hierarchy being initialized at this point. If you want to do work once the activity itself is created, add a androidx.lifecycle.LifecycleObserver on the activity's Lifecycle, removing it when it receives the CREATED callback.

Any restored child fragments will be created before the base Fragment.onCreate method returns.

Parameters
`@Nullable Bundle savedInstanceState`	If the fragment is being re-created from a previous saved state, this is the state.

onCreateCallback

Added in 1.1.0

public @Nullable MediaRouter.Callback onCreateCallback()

Called to create the callback that will be registered.

The default callback does nothing. The application may override this method to supply its own callback.

Returns
`@Nullable MediaRouter.Callback`	The new callback, or null if no callback should be registered.

onDestroy

public void onDestroy()

Called when the fragment is no longer in use. This is called after onStop and before onDetach.

onPrepareCallbackFlags

Added in 1.1.0

public int onPrepareCallbackFlags()

Called to prepare the callback flags that will be used when the callback is registered.

The default implementation returns CALLBACK_FLAG_REQUEST_DISCOVERY.

Returns
`int`	The desired callback flags.

onStart

public void onStart()

Called when the Fragment is visible to the user. This is generally tied to Activity.onStart of the containing Activity's lifecycle.

onStop

public void onStop()

Called when the Fragment is no longer started. This is generally tied to Activity.onStop of the containing Activity's lifecycle.

setRouteSelector

Added in 1.1.0

public void setRouteSelector(@NonNull MediaRouteSelector selector)

Sets the media route selector for filtering the routes to be discovered. This method must be called before the fragment is added.

Parameters
`@NonNull MediaRouteSelector selector`	The selector to set.