DialogFragment Class

Reference

Definition

Namespace:: Android.App

Assembly:: Mono.Android.dll

Important

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A fragment that displays a dialog window, floating on top of its activity's window.

[Android.Runtime.Register("android/app/DialogFragment", DoNotGenerateAcw=true)]
public class DialogFragment : Android.App.Fragment, Android.Content.IDialogInterfaceOnCancelListener, Android.Content.IDialogInterfaceOnDismissListener, IDisposable, Java.Interop.IJavaPeerable

[<Android.Runtime.Register("android/app/DialogFragment", DoNotGenerateAcw=true)>]
type DialogFragment = class
    inherit Fragment
    interface IDialogInterfaceOnCancelListener
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable
    interface IDialogInterfaceOnDismissListener

Inheritance: Object

Object

Fragment
DialogFragment

Attributes: RegisterAttribute

Implements: IDialogInterfaceOnCancelListener IDialogInterfaceOnDismissListener IJavaObject IJavaPeerable IDisposable

Remarks

A fragment that displays a dialog window, floating on top of its activity's window. This fragment contains a Dialog object, which it displays as appropriate based on the fragment's state. Control of the dialog (deciding when to show, hide, dismiss it) should be done through the API here, not with direct calls on the dialog.

Implementations should override this class and implement #onCreateView(LayoutInflater, ViewGroup, Bundle) to supply the content of the dialog. Alternatively, they can override #onCreateDialog(Bundle) to create an entirely custom dialog, such as an AlertDialog, with its own content.

Topics covered here: <ol> <li>Lifecycle<li>Basic Dialog<li>Alert Dialog<li>Selecting Between Dialog or Embedding</ol>

"Lifecycle"><h3>Lifecycle</h3>

DialogFragment does various things to keep the fragment's lifecycle driving it, instead of the Dialog. Note that dialogs are generally autonomous entities -- they are their own window, receiving their own input events, and often deciding on their own when to disappear (by receiving a back key event or the user clicking on a button).

DialogFragment needs to ensure that what is happening with the Fragment and Dialog states remains consistent. To do this, it watches for dismiss events from the dialog and takes care of removing its own state when they happen. This means you should use #show(FragmentManager, String) or #show(FragmentTransaction, String) to add an instance of DialogFragment to your UI, as these keep track of how DialogFragment should remove itself when the dialog is dismissed.

"BasicDialog"><h3>Basic Dialog</h3>

The simplest use of DialogFragment is as a floating container for the fragment's view hierarchy. A simple implementation may look like this:

{

This member is deprecated. Use the Support Libraryandroidx.fragment.app.DialogFragment for consistent behavior across all devices and access to Lifecycle.

Java documentation for android.app.DialogFragment.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

DialogFragment()
DialogFragment(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

Activity	Return the Activity this fragment is currently associated with. (Inherited from Fragment)
AllowEnterTransitionOverlap	Returns whether the exit transition and enter transition overlap or not. -or- Sets whether the exit transition and enter transition overlap or not. (Inherited from Fragment)
AllowReturnTransitionOverlap	Returns whether the return transition and reenter transition overlap or not. -or- Sets whether the return transition and reenter transition overlap or not. (Inherited from Fragment)
Arguments	Return the arguments supplied to `#setArguments`, if any. -or- Supply the construction arguments for this fragment. (Inherited from Fragment)
Cancelable	Return the current value of `#setCancelable(boolean)`. -or- Control whether the shown Dialog is cancelable.
ChildFragmentManager	Return a private FragmentManager for placing and managing Fragments inside of this Fragment. (Inherited from Fragment)
Class	Returns the runtime class of this `Object`. (Inherited from Object)
Context	Return the `Context` this fragment is currently associated with. (Inherited from Fragment)
Dialog
EnterTransition	Returns the Transition that will be used to move Views into the initial scene. -or- Sets the Transition that will be used to move Views into the initial scene. (Inherited from Fragment)
ExitTransition	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. -or- 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. (Inherited from Fragment)
FragmentManager	Return the FragmentManager for interacting with fragments associated with this fragment's activity. (Inherited from Fragment)
Handle	The handle to the underlying Android instance. (Inherited from Object)
Host	Return the host object of this fragment. (Inherited from Fragment)
Id	Return the identifier this fragment is known by. (Inherited from Fragment)
IsAdded	Return true if the fragment is currently added to its activity. (Inherited from Fragment)
IsDetached	Return true if the fragment has been explicitly detached from the UI. (Inherited from Fragment)
IsHidden	Return true if the fragment has been hidden. (Inherited from Fragment)
IsInLayout	Return true if the layout is included as part of an activity view hierarchy via the <fragment> tag. (Inherited from Fragment)
IsRemoving	Return true if this fragment is currently being removed from its activity. (Inherited from Fragment)
IsResumed	Return true if the fragment is in the resumed state. (Inherited from Fragment)
IsStateSaved	Returns true if this fragment is added and its state has already been saved by its host. (Inherited from Fragment)
IsVisible	Return true if the fragment is currently visible to the user. (Inherited from Fragment)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
LayoutInflater	Returns the cached LayoutInflater used to inflate Views of this Fragment. (Inherited from Fragment)
LoaderManager	Return the LoaderManager for this fragment, creating it if needed. (Inherited from Fragment)
ParentFragment	Returns the parent Fragment containing this Fragment. (Inherited from Fragment)
PeerReference	(Inherited from Object)
ReenterTransition	Returns the Transition that will be used to move Views in to the scene when returning due to popping a back stack. -or- Sets the Transition that will be used to move Views in to the scene when returning due to popping a back stack. (Inherited from Fragment)
Resources	Return `getActivity().getResources()`. (Inherited from Fragment)
RetainInstance	Control whether a fragment instance is retained across Activity re-creation (such as from a configuration change). (Inherited from Fragment)
ReturnTransition	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. -or- 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. (Inherited from Fragment)
SharedElementEnterTransition	Returns the Transition that will be used for shared elements transferred into the content Scene. -or- Sets the Transition that will be used for shared elements transferred into the content Scene. (Inherited from Fragment)
SharedElementReturnTransition	Return the Transition that will be used for shared elements transferred back during a pop of the back stack. -or- Sets the Transition that will be used for shared elements transferred back during a pop of the back stack. (Inherited from Fragment)
ShowsDialog	Return the current value of `#setShowsDialog(boolean)`. -or- Controls whether this fragment should be shown in a dialog.
Tag	Get the tag name of the fragment, if specified. (Inherited from Fragment)
TargetFragment	Return the target fragment set by `#setTargetFragment`. (Inherited from Fragment)
TargetRequestCode	Return the target request code set by `#setTargetFragment`. (Inherited from Fragment)
Theme
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
UserVisibleHint	Set a hint to the system about whether this fragment's UI is currently visible to the user. (Inherited from Fragment)
View	Get the root view for the fragment's layout (the one returned by `#onCreateView`), if provided. (Inherited from Fragment)

Methods

Clone()	Creates and returns a copy of this object. (Inherited from Object)
Dismiss()	Dismiss the fragment and its dialog.
DismissAllowingStateLoss()	Version of `#dismiss()` that uses `FragmentTransaction#commitAllowingStateLoss() FragmentTransaction.commitAllowingStateLoss()`.
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Dump(String, FileDescriptor, PrintWriter, String[])	Print the Fragments's state into the given stream. (Inherited from Fragment)
Equals(Object)	Obsolete. Subclasses can not override equals(). (Inherited from Fragment)
GetHashCode()	Obsolete. Subclasses can not override hashCode(). (Inherited from Fragment)
GetString(Int32, Object[])	Return a localized string from the application's package's default string table. (Inherited from Fragment)
GetString(Int32)	Return a localized string from the application's package's default string table. (Inherited from Fragment)
GetText(Int32)	Return a localized, styled CharSequence from the application's package's default string table. (Inherited from Fragment)
GetTextFormatted(Int32)	Return a localized, styled CharSequence from the application's package's default string table. (Inherited from Fragment)
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
OnActivityCreated(Bundle)	Called when the fragment's activity has been created and this fragment's view hierarchy instantiated. (Inherited from Fragment)
OnActivityResult(Int32, Result, Intent)	Receive the result from a previous call to `#startActivityForResult(Intent, int)`. (Inherited from Fragment)
OnAttach(Activity)	This member is deprecated. (Inherited from Fragment)
OnAttach(Context)	Called when a fragment is first attached to its context. (Inherited from Fragment)
OnAttachFragment(Fragment)	Called when a fragment is attached as a child of this fragment. (Inherited from Fragment)
OnCancel(IDialogInterface)	This method will be invoked when the dialog is canceled.
OnConfigurationChanged(Configuration)	Called by the system when the device configuration changes while your component is running. (Inherited from Fragment)
OnContextItemSelected(IMenuItem)	This hook is called whenever an item in a context menu is selected. (Inherited from Fragment)
OnCreate(Bundle)	Called to do initial creation of a fragment. (Inherited from Fragment)
OnCreateAnimator(FragmentTransit, Boolean, Int32)	Called when a fragment loads an animation. (Inherited from Fragment)
OnCreateContextMenu(IContextMenu, View, IContextMenuContextMenuInfo)	Called when a context menu for the `view` is about to be shown. (Inherited from Fragment)
OnCreateDialog(Bundle)	Override to build your own custom Dialog container.
OnCreateOptionsMenu(IMenu, MenuInflater)	Initialize the contents of the Activity's standard options menu. (Inherited from Fragment)
OnCreateView(LayoutInflater, ViewGroup, Bundle)	Called to have the fragment instantiate its user interface view. (Inherited from Fragment)
OnDestroy()	Called when the fragment is no longer in use. (Inherited from Fragment)
OnDestroyOptionsMenu()	Called when this fragment's option menu items are no longer being included in the overall options menu. (Inherited from Fragment)
OnDestroyView()	Called when the view previously created by `#onCreateView` has been detached from the fragment. (Inherited from Fragment)
OnDetach()	Called when the fragment is no longer attached to its activity. (Inherited from Fragment)
OnDismiss(IDialogInterface)	This method will be invoked when the dialog is dismissed.
OnGetLayoutInflater(Bundle)	Returns the LayoutInflater used to inflate Views of this Fragment. (Inherited from Fragment)
OnHiddenChanged(Boolean)	Called when the hidden state (as returned by `#isHidden()` of the fragment has changed. (Inherited from Fragment)
OnInflate(Activity, IAttributeSet, Bundle)	This member is deprecated. (Inherited from Fragment)
OnInflate(Context, IAttributeSet, Bundle)	Called when a fragment is being created as part of a view layout inflation, typically from setting the content view of an activity. (Inherited from Fragment)
OnInflate(IAttributeSet, Bundle)	Obsolete. This member is deprecated. (Inherited from Fragment)
OnLowMemory()	This is called when the overall system is running low on memory, and actively running processes should trim their memory usage. (Inherited from Fragment)
OnMultiWindowModeChanged(Boolean, Configuration)	Called when the Fragment's activity changes from fullscreen mode to multi-window mode and visa-versa. (Inherited from Fragment)
OnMultiWindowModeChanged(Boolean)	Called when the Fragment's activity changes from fullscreen mode to multi-window mode and visa-versa. (Inherited from Fragment)
OnOptionsItemSelected(IMenuItem)	This hook is called whenever an item in your options menu is selected. (Inherited from Fragment)
OnOptionsMenuClosed(IMenu)	This hook is called whenever the options menu is being closed (either by the user canceling the menu with the back/menu button, or when an item is selected). (Inherited from Fragment)
OnPause()	Called when the Fragment is no longer resumed. (Inherited from Fragment)
OnPictureInPictureModeChanged(Boolean, Configuration)	Called by the system when the activity changes to and from picture-in-picture mode. (Inherited from Fragment)
OnPictureInPictureModeChanged(Boolean)	Called by the system when the activity changes to and from picture-in-picture mode. (Inherited from Fragment)
OnPrepareOptionsMenu(IMenu)	Prepare the Screen's standard options menu to be displayed. (Inherited from Fragment)
OnRequestPermissionsResult(Int32, String[], Permission[])	Callback for the result from requesting permissions. (Inherited from Fragment)
OnResume()	Called when the fragment is visible to the user and actively running. (Inherited from Fragment)
OnSaveInstanceState(Bundle)	Called to ask the fragment to save its current dynamic state, so it can later be reconstructed in a new instance of its process is restarted. (Inherited from Fragment)
OnStart()	Called when the Fragment is visible to the user. (Inherited from Fragment)
OnStop()	Called when the Fragment is no longer started. (Inherited from Fragment)
OnTrimMemory(TrimMemory)	Called when the operating system has determined that it is a good time for a process to trim unneeded memory from its process. (Inherited from Fragment)
OnViewCreated(View, Bundle)	Called immediately after `#onCreateView(LayoutInflater, ViewGroup, Bundle)` has returned, but before any saved state has been restored in to the view. (Inherited from Fragment)
OnViewStateRestored(Bundle)	Called when all saved state has been restored into the view hierarchy of the fragment. (Inherited from Fragment)
PostponeEnterTransition()	Postpone the entering Fragment transition until `#startPostponedEnterTransition()` or `FragmentManager#executePendingTransactions()` has been called. (Inherited from Fragment)
RegisterForContextMenu(View)	Registers a context menu to be shown for the given view (multiple views can show the context menu). (Inherited from Fragment)
RequestPermissions(String[], Int32)	Requests permissions to be granted to this application. (Inherited from Fragment)
SetEnterSharedElementCallback(SharedElementCallback)	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. (Inherited from Fragment)
SetExitSharedElementCallback(SharedElementCallback)	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. (Inherited from Fragment)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetHasOptionsMenu(Boolean)	Report that this fragment would like to participate in populating the options menu by receiving a call to `#onCreateOptionsMenu` and related methods. (Inherited from Fragment)
SetInitialSavedState(Fragment+SavedState)	Set the initial saved state that this Fragment should restore itself from when first being constructed, as returned by `FragmentManager#saveFragmentInstanceState(Fragment) FragmentManager.saveFragmentInstanceState`. (Inherited from Fragment)
SetMenuVisibility(Boolean)	Set a hint for whether this fragment's menu should be visible. (Inherited from Fragment)
SetStyle(DialogFragmentStyle, Int32)	Call to customize the basic appearance and behavior of the fragment's dialog.
SetTargetFragment(Fragment, Int32)	Optional target for this fragment. (Inherited from Fragment)
ShouldShowRequestPermissionRationale(String)	Gets whether you should show UI with rationale before requesting a permission. (Inherited from Fragment)
Show(FragmentManager, String)	Display the dialog, adding the fragment to the given FragmentManager.
Show(FragmentTransaction, String)	Display the dialog, adding the fragment using an existing transaction and then committing the transaction.
StartActivity(Intent, Bundle)	Call `Activity#startActivity(Intent, Bundle)` from the fragment's containing Activity. (Inherited from Fragment)
StartActivity(Intent)	Call `Activity#startActivity(Intent)` from the fragment's containing Activity. (Inherited from Fragment)
StartActivityForResult(Intent, Int32, Bundle)	Call `Activity#startActivityForResult(Intent, int, Bundle)` from the fragment's containing Activity. (Inherited from Fragment)
StartActivityForResult(Intent, Int32)	Call `Activity#startActivityForResult(Intent, int)` from the fragment's containing Activity. (Inherited from Fragment)
StartIntentSenderForResult(IntentSender, Int32, Intent, ActivityFlags, ActivityFlags, Int32, Bundle)	Call `Activity#startIntentSenderForResult(IntentSender, int, Intent, int, int, int, Bundle)` from the fragment's containing Activity. (Inherited from Fragment)
StartPostponedEnterTransition()	Begin postponed transitions after `#postponeEnterTransition()` was called. (Inherited from Fragment)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterForContextMenu(View)	Prevents a context menu to be shown for the given view. (Inherited from Fragment)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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