ActivityResultCaller

Kotlin |Java

interface ActivityResultCaller

androidx.activity.result.ActivityResultCaller

Known Direct Subclasses

ComponentActivity, Fragment

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

AbstractProgressFragment, AmbientModeSupport, AppCompatActivity, AppCompatDialogFragment, BaseLeanbackPreferenceFragmentCompat, BaseSupportFragment, BrandedSupportFragment, BrowseSupportFragment, DefaultProgressFragment, DetailsSupportFragment, DialogFragment, DynamicNavHostFragment, and 24 others.

AbstractProgressFragment	The base class for Fragments that handle dynamic feature installation.
AmbientModeSupport	Use this as a headless Fragment to add ambient support to an Activity on Wearable devices.
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.
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.
DefaultProgressFragment	The default androidx.fragment.app.Fragment to display during installation progress.
DetailsSupportFragment	A fragment for creating Leanback details screens.
DialogFragment	Static library support version of the framework's `android.app.DialogFragment`.
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.
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.
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.
WatchFaceConfigActivity	Config activity for the watch face, which supports complication and provider selection, as well as userStyle configuration.

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

Summary

Public methods
abstract ActivityResultLauncher<I>	`registerForActivityResult(@NonNull contract: ActivityResultContract<I, O>, @NonNull callback: ActivityResultCallback<O>)` Register a request to Activity#startActivityForResult, designated by the given `contract`.
abstract ActivityResultLauncher<I>	`registerForActivityResult(@NonNull contract: ActivityResultContract<I, O>, @NonNull registry: ActivityResultRegistry, @NonNull callback: ActivityResultCallback<O>)` Register a request to Activity#startActivityForResult, designated by the given `contract`.

Extension functions

From androidx.activity.result

ActivityResultLauncher<Unit>	`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.
ActivityResultLauncher<Unit>	`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.

Public methods

registerForActivityResult

@NonNull abstract fun <I : Any!, O : Any!> registerForActivityResult(
    @NonNull contract: ActivityResultContract<I, O>, 
    @NonNull callback: ActivityResultCallback<O>
): ActivityResultLauncher<I>

Register a request to Activity#startActivityForResult, designated by the given contract. This creates a record in the registry associated wit 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>`	the type of the input(if any) required to call the activity
`<O>`	the type of output returned as