DialogFragment Class

Definition

Namespace:

Android.App

Assembly:

Mono.Android.dll

This class was deprecated in API level 28.

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

[<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

JavaObject

Object

Fragment

DialogFragment

Attributes

RegisterAttribute

Implements

IDialogInterfaceOnCancelListener IDialogInterfaceOnDismissListener IJavaObject IJavaPeerable IDisposable

Remarks

This class was deprecated in API level 28. Use the Support Library DialogFragment for consistent behavior across all devices and access to Lifecycle.

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: Lifecycle Basic Dialog Alert Dialog Selecting Between Dialog or Embedding Lifecycle 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. Basic Dialog The simplest use of DialogFragment is as a floating container for the fragment's view hierarchy. A simple implementation may look like this: An example showDialog() method on the Activity could be: This removes any currently shown dialog, creates a new DialogFragment with an argument, and shows it as a new state on the back stack. When the transaction is popped, the current DialogFragment and its Dialog will be destroyed, and the previous one (if any) re-shown. Note that in this case DialogFragment will take care of popping the transaction of the Dialog is dismissed separately from it. Alert Dialog Instead of (or in addition to) implementing Fragment.onCreateView(LayoutInflater, ViewGroup, Bundle) to generate the view hierarchy inside of a dialog, you may implement onCreateDialog(Bundle) to create your own custom Dialog object. This is most useful for creating an AlertDialog, allowing you to display standard alerts to the user that are managed by a fragment. A simple example implementation of this is: The activity creating this fragment may have the following methods to show the dialog and receive results from it: Note that in this case the fragment is not placed on the back stack, it is just added as an indefinitely running fragment. Because dialogs normally are modal, this will still operate as a back stack, since the dialog will capture user input until it is dismissed. When it is dismissed, DialogFragment will take care of removing itself from its fragment manager. Selecting Between Dialog or Embedding A DialogFragment can still optionally be used as a normal fragment, if desired. This is useful if you have a fragment that in some cases should be shown as a dialog and others embedded in a larger UI. This behavior will normally be automatically selected for you based on how you are using the fragment, but can be customized with setShowsDialog(boolean). For example, here is a simple dialog fragment: An instance of this fragment can be created and shown as a dialog: It can also be added as content in a view hierarchy:

Android reference 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

Name	Description
DialogFragment()
DialogFragment(IntPtr, JniHandleOwnership)	Initializes a managed representation of an existing Java Native Interface object.

Properties

Name	Description
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. (Inherited from Fragment)
AllowReturnTransitionOverlap	Returns whether the return transition and reenter transition overlap or not. (Inherited from Fragment)
Arguments	Return the arguments supplied to setArguments(Bundle), if any. (Inherited from Fragment)
Cancelable	Return the current value of setCancelable(boolean).
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. (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. (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	Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object)
JniManagedPeerState	(Inherited from JavaObject)
JniPeerMembers	Provides JNI binding infrastructure for Android.App.DialogFragment.
LayoutInflater	Returns the cached LayoutInflater used to inflate Views of this Fragment. (Inherited from Fragment)
LoaderManager	This method is deprecated. (Inherited from Fragment)
ParentFragment	Returns the parent Fragment containing this Fragment. (Inherited from Fragment)
PeerReference	Gets the JNI object reference for this Java peer. (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. (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. (Inherited from Fragment)
SharedElementEnterTransition	Returns 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. (Inherited from Fragment)
ShowsDialog	Return the current value of setShowsDialog(boolean).
Tag	Get the tag name of the fragment, if specified. (Inherited from Fragment)
TargetFragment	Return the target fragment set by setTargetFragment(Fragment, int). (Inherited from Fragment)
TargetRequestCode	Return the target request code set by setTargetFragment(Fragment, int). (Inherited from Fragment)
Theme
ThresholdClass	Provides JNI binding infrastructure for Android.App.DialogFragment.
ThresholdType	Provides JNI binding infrastructure for Android.App.DialogFragment.
UserVisibleHint	See also: (Inherited from Fragment)
View	Get the root view for the fragment's layout (the one returned by onCreateView(LayoutInflater, ViewGroup, Bundle)), if provided. (Inherited from Fragment)

Methods

Name	Description
Clone()	Creates and returns a copy of this object. (Inherited from Object)
Construct(JniObjectReference, JniObjectReferenceOptions)	(Inherited from JavaObject)
Dismiss()	Dismiss the fragment and its dialog.
DismissAllowingStateLoss()	Version of dismiss() that uses FragmentTransaction.commitAllowingStateLoss().
Dispose()	Releases the resources held by this Java peer. (Inherited from Object)
Dispose(Boolean)	Releases the resources held by this Java peer. (Inherited from Object)
DisposeUnlessReferenced()	(Inherited from JavaObject)
Dump(String, FileDescriptor, PrintWriter, String[])	Print the Fragments's state into the given stream. (Inherited from Fragment)
Equals(Object)	(Inherited from JavaObject)
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 formatted string from the application's package's default string table, substituting the format arguments as defined in Formatter and String.format(String, Object). (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 method was deprecated in API level 23. (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(LayoutInflater, ViewGroup, Bundle) 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 method was deprecated in API level 23. (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 method was deprecated in API level 15. (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)	This method was deprecated in API level 26. (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)	This method was deprecated in API level 26. (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(Menu, MenuInflater) 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. (Inherited from Fragment)
SetMenuVisibility(Boolean)	Set a hint for whether this fragment's menu should be visible. (Inherited from Fragment)
SetPeerReference(JniObjectReference, JniObjectReferenceOptions)	(Inherited from JavaObject)
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>()	Creates a managed array from this Java array wrapper. (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()	Unregisters this Java peer from the interop runtime. (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

Name	Description
IJavaPeerable.Disposed()	(Inherited from JavaObject)
IJavaPeerable.Finalized()	(Inherited from JavaObject)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from JavaObject)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from JavaObject)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from JavaObject)

Extension Methods

Name	Description
GetJniTypeName(IJavaPeerable)	Gets the JNI name of the type of the instance self.
JavaAs<TResult>(IJavaPeerable)	Try to coerce self to type TResult, checking that the coercion is valid on the Java side.
JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
TryJavaCast<TResult>(IJavaPeerable, TResult)	Try to coerce self to type TResult, checking that the coercion is valid on the Java side.