FragmentHostCallback
abstract class FragmentHostCallback<E : Any!> : FragmentContainer
kotlin.Any | ||
↳ | androidx.fragment.app.FragmentContainer | |
↳ | androidx.fragment.app.FragmentHostCallback |
Integration points with the Fragment host.
Fragments may be hosted by any object; such as an Activity
. In order to host fragments, implement FragmentHostCallback
, overriding the methods applicable to the host.
FragmentManager changes its behavior based on what optional interfaces your FragmentHostCallback implements. This includes the following:
ActivityResultRegistryOwner
: Removes the need to overrideonStartIntentSenderFromFragment
oronRequestPermissionsFromFragment
.FragmentOnAttachListener
: Removes the need to manually callFragmentManager#addFragmentOnAttachListener
from your host in order to receiveFragmentOnAttachListener#onAttachFragment
callbacks for theFragmentController#getSupportFragmentManager()
.androidx.activity.OnBackPressedDispatcherOwner
: Removes the need to manually callFragmentManager#popBackStackImmediate()
when handling the system back button.androidx.lifecycle.ViewModelStoreOwner
: Removes the need for yourFragmentController
to callFragmentController#retainNestedNonConfig()
orFragmentController#restoreAllState(Parcelable, FragmentManagerNonConfig)
.
Summary
Public constructors | |
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Public methods | |
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open Unit |
onDump(@NonNull prefix: String, @Nullable fd: FileDescriptor?, @NonNull writer: PrintWriter, @Nullable args: Array<String!>?) Print internal state into the given stream. |
open View? |
onFindViewById(id: Int) |
abstract E? |
Return the object that's currently hosting the fragment. |
open LayoutInflater |
Return a |
open Int |
Return the window animations. |
open Boolean | |
open Boolean |
Return |
open Unit |
onRequestPermissionsFromFragment(@NonNull fragment: Fragment, @NonNull permissions: Array<String!>, requestCode: Int) Requests permissions from the given fragment. |
open Boolean |
onShouldSaveFragmentState(@NonNull fragment: Fragment) Return |
open Boolean |
onShouldShowRequestPermissionRationale(@NonNull permission: String) Checks whether to show permission rationale UI from a fragment. |
open Unit |
onStartActivityFromFragment(@NonNull fragment: Fragment, intent: Intent!, requestCode: Int) Starts a new |
open Unit |
onStartActivityFromFragment(@NonNull fragment: Fragment, intent: Intent!, requestCode: Int, @Nullable options: Bundle?) Starts a new |
open Unit |
onStartIntentSenderFromFragment(@NonNull fragment: Fragment, |