Summary: Methods

ActivityResultCaller

Kotlin |Java

public interface ActivityResultCaller

androidx.activity.result.ActivityResultCaller

Known indirect subclasses AmbientModeSupport, AppCompatActivity, AppCompatDialogFragment, BaseLeanbackPreferenceFragmentCompat, BaseSupportFragment, BrandedSupportFragment, BrowseSupportFragment, ComponentActivity, DetailsSupportFragment, DialogFragment, EditTextPreferenceDialogFragmentCompat, ErrorSupportFragment, Fragment, and 20 others. 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.  ComponentActivity Base class for activities that enables composition of higher level components.  DetailsSupportFragment A fragment for creating Leanback details screens.  DialogFragment Static library support version of the framework's DialogFragment.  EditTextPreferenceDialogFragmentCompat   ErrorSupportFragment A fragment for displaying an error indication.  Fragment Static library support version of the framework's Fragment.  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.  LeanbackEditTextPreferenceDialogFragmentCompat Implemented a dialog to input text.  LeanbackListPreferenceDialogFragmentCompat Implemented a dialog to show ListPreference or MultiSelectListPreference.  LeanbackPreferenceDialogFragmentCompat A fragment that shows DialogPreference, for example ListPreference or 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 The following sample code shows a simple leanback preference fragment that is populated from a resource.  ListFragment Static library support version of the framework's ListFragment.  ListPreferenceDialogFragmentCompat   MediaRouteChooserDialogFragment Media route chooser dialog fragment.  MediaRouteControllerDialogFragment Media route controller dialog fragment.  MediaRouteDiscoveryFragment Media route discovery fragment.  MultiSelectListPreferenceDialogFragmentCompat   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.  RowsSupportFragment An ordered set of rows of leanback widgets.  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.

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

Summary

Public methods
abstract <I, O> ActivityResultLauncher<I>	registerForActivityResult(ActivityResultContract<I, O> contract, ActivityResultCallback<O> callback) Register a request to start an activity for result, designated by the given contract.
abstract <I, O> ActivityResultLauncher<I>	registerForActivityResult(ActivityResultContract<I, O> contract, ActivityResultRegistry registry, ActivityResultCallback<O> callback) Register a request to start an activity for result, designated by the given contract.

Public methods

registerForActivityResult

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

Register a request to start an activity for result, 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
contract	ActivityResultContract: the contract, specifying conversions to/from Intents
callback	ActivityResultCallback: 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

public abstract ActivityResultLauncher<I> registerForActivityResult (ActivityResultContract<I, O> contract, 
                ActivityResultRegistry registry, 
                ActivityResultCallback<O> callback)

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
contract	ActivityResultContract: the contract, specifying conversions to/from Intents
registry	ActivityResultRegistry: the registry where to hold the record.
callback	ActivityResultCallback: 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.