ActivityResultCaller

interface ActivityResultCaller

Known direct subclasses
ComponentActivity

Base class for activities that enables composition of higher level components.

Fragment

Static library support version of the framework's android.app.Fragment.

Known indirect subclasses
AbstractListDetailFragment

A fragment supports adaptive two-pane layout.

AbstractProgressFragment

The base class for Fragments that handle dynamic feature installation.

AmbientModeSupport

This class is deprecated.

Use AmbientLifecycleObserver instead.

AppCompatActivity

Base class for activities that wish to use some of the newer platform features on older Android devices.

AppCompatDialogFragment

A special version of DialogFragment which uses an AppCompatDialog in place of a platform-styled dialog.

BaseCarAppActivity

Core logic for CarAppLibrary Activity interaction with a host.

BaseLeanbackPreferenceFragmentCompat

This fragment provides a preference fragment with leanback-style behavior, suitable for embedding into broader UI elements.

BaseSupportFragment

Base class for leanback Fragments.

BrandedSupportFragment

Fragment class for managing search and branding using a view that implements TitleViewAdapter.Provider.

BrowseSupportFragment

A fragment for creating Leanback browse screens.

CarAppActivity

The class representing a car app activity in the main display.

DefaultProgressFragment

The default androidx.fragment.app.Fragment to display during installation progress.

DetailsSupportFragment

A fragment for creating Leanback details screens.

DialogFragment

A fragment that displays a dialog window, floating in the foreground of its activity's window.

DynamicNavHostFragment

The NavHostFragment for dynamic features.

EditTextPreferenceDialogFragmentCompat
ErrorSupportFragment

A fragment for displaying an error indication.

FragmentActivity

Base class for activities that want to use the support-based Fragments.

GuidedStepSupportFragment

A GuidedStepSupportFragment is used to guide the user through a decision or series of decisions.

HeadersSupportFragment

An fragment containing a list of row headers.

LauncherActivity

This class handles providing the right launcher activity when running native applications and Car App Library applications.

LeanbackEditTextPreferenceDialogFragmentCompat

Implemented a dialog to input text.

LeanbackListPreferenceDialogFragmentCompat

Implemented a dialog to show ListPreference or MultiSelectListPreference.

LeanbackPreferenceDialogFragmentCompat

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

LeanbackPreferenceFragmentCompat

This fragment provides a fully decorated leanback-style preference fragment, including a list background and header.

LeanbackSettingsFragmentCompat

This fragment provides a container for displaying a LeanbackPreferenceFragmentCompat

ListFragment

Static library support version of the framework's android.app.ListFragment.

ListPreferenceDialogFragmentCompat
MediaRouteChooserDialogFragment

Media route chooser dialog fragment.

MediaRouteControllerDialogFragment

Media route controller dialog fragment.

MediaRouteDiscoveryFragment

Media route discovery fragment.

MultiSelectListPreferenceDialogFragmentCompat
NavHostFragment

NavHostFragment provides an area within your layout for self-contained navigation to occur.

OnboardingSupportFragment

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

PlaybackSupportFragment

A fragment for displaying playback controls and related content.

PreferenceDialogFragmentCompat

Abstract base class which presents a dialog associated with a DialogPreference.

PreferenceFragmentCompat

A PreferenceFragmentCompat is the entry point to using the Preference library.

PreferenceHeaderFragmentCompat

PreferenceHeaderFragmentCompat implements a two-pane fragment for preferences.

PreviewActivity

Activity used to run @Composable previews from Android Studio.

RowsSupportFragment

An ordered set of rows of leanback widgets.

SdkActivity

Activity to start for SDKs running locally.

SearchSupportFragment

A fragment to handle searches.

VerticalGridSupportFragment

A fragment for creating leanback vertical grids.

VideoSupportFragment

Subclass of PlaybackSupportFragment that is responsible for providing a SurfaceView and rendering video.


A class that can call Activity.startActivityForResult-style APIs without having to manage request codes, and converting request/response to an Intent

Summary

Public functions

ActivityResultLauncher<I>
<I : Any?, O : Any?> registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    callback: ActivityResultCallback<O>
)

Register a request to start an activity for result, designated by the given contract.

ActivityResultLauncher<I>
<I : Any?, O : Any?> registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    registry: ActivityResultRegistry,
    callback: ActivityResultCallback<O>
)

Register a request to start an activity for result, designated by the given contract.

Extension functions

ActivityResultLauncher<Unit>
<I : Any?, O : Any?> ActivityResultCaller.registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    input: I,
    callback: (O) -> Unit
)

A version of ActivityResultCaller.registerForActivityResult that additionally takes an input right away, producing a launcher that doesn't take any additional input when called.

ActivityResultLauncher<Unit>
<I : Any?, O : Any?> ActivityResultCaller.registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    input: I,
    registry: ActivityResultRegistry,
    callback: (O) -> Unit
)

A version of ActivityResultCaller.registerForActivityResult that additionally takes an input right away, producing a launcher that doesn't take any additional input when called.

Public functions

registerForActivityResult

Added in 1.2.0
fun <I : Any?, O : Any?> registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    callback: ActivityResultCallback<O>
): ActivityResultLauncher<I>

Register a request to start an activity for result, designated by the given contract.

This creates a record in the registry associated with this caller, managing request code, as well as conversions to/from Intent under the hood.

This must be called unconditionally, as part of initialization path, typically as a field initializer of an Activity or Fragment.

Parameters
<I : Any?>

the type of the input(if any) required to call the activity

<O : Any?>

the type of output returned as an activity result

contract: ActivityResultContract<I, O>

the contract, specifying conversions to/from Intents

callback: ActivityResultCallback<O>

the callback to be called on the main thread when activity result is available

Returns
ActivityResultLauncher<I>

the launcher that can be used to start the activity or dispose of the prepared call.

registerForActivityResult

Added in 1.2.0
fun <I : Any?, O : Any?> registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    registry: ActivityResultRegistry,
    callback: ActivityResultCallback<O>
): ActivityResultLauncher<I>

Register a request to start an activity for result, designated by the given contract.

This creates a record in the given registry, managing request code, as well as conversions to/from Intent under the hood.

This must be called unconditionally, as part of initialization path, typically as a field initializer of an Activity or Fragment.

Parameters
<I : Any?>

the type of the input(if any) required to call the activity

<O : Any?>

the type of output returned as an activity result

contract: ActivityResultContract<I, O>

the contract, specifying conversions to/from Intents

registry: ActivityResultRegistry

the registry where to hold the record.

callback: ActivityResultCallback<O>

the callback to be called on the main thread when activity result is available

Returns
ActivityResultLauncher<I>

the launcher that can be used to start the activity or dispose of the prepared call.

Extension functions

registerForActivityResult

fun <I : Any?, O : Any?> ActivityResultCaller.registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    input: I,
    callback: (O) -> Unit
): ActivityResultLauncher<Unit>

A version of ActivityResultCaller.registerForActivityResult that additionally takes an input right away, producing a launcher that doesn't take any additional input when called.

registerForActivityResult

fun <I : Any?, O : Any?> ActivityResultCaller.registerForActivityResult(
    contract: ActivityResultContract<I, O>,
    input: I,
    registry: ActivityResultRegistry,
    callback: (O) -> Unit
): ActivityResultLauncher<Unit>

A version of ActivityResultCaller.registerForActivityResult that additionally takes an input right away, producing a launcher that doesn't take any additional input when called.