DialogPreference


public abstract class DialogPreference
extends Preference implements DialogInterface.OnClickListener, DialogInterface.OnDismissListener, PreferenceManager.OnActivityDestroyListener

java.lang.Object
   ↳ android.preference.Preference
     ↳ android.preference.DialogPreference
EditTextPreference This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings. 
ListPreference This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings. 
MultiSelectListPreference This class was deprecated in API level 29. Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings. 


This class was deprecated in API level 29.
Use the AndroidX Preference Library for consistent behavior across all devices. For more information on using the AndroidX Preference Library see Settings.

A base class for Preference objects that are dialog-based. These preferences will, when clicked, open a dialog showing the actual preference controls.

Summary

XML attributes

android:dialogIcon The icon for the dialog. 
android:dialogLayout A layout to be used as the content View for the dialog. 
android:dialogMessage The message in the dialog. 
android:dialogTitle The title in the dialog. 
android:negativeButtonText The negative button text for the dialog. 
android:positiveButtonText The positive button text for the dialog. 

Inherited XML attributes

android:defaultValue The default value for the preference, which will be set either if persistence is off or persistence is on and the preference is not found in the persistent storage. 
android:dependency The key of another Preference that this Preference will depend on. 
android:enabled Whether the Preference is enabled. 
android:fragment When used inside of a modern PreferenceActivity, this declares a new PreferenceFragment to be shown when the user selects this item. 
android:icon The optional icon for the preference. 
android:iconSpaceReserved Whether the space for the preference icon view will be reserved. 
android:key The key to store the Preference value. 
android:layout The layout for the Preference in a PreferenceActivity screen. 
android:order The order for the Preference (lower values are to be ordered first). 
android:persistent Whether the Preference stores its value to the storage. 
android:recycleEnabled Whether the preference has enabled to have its view recycled when used in the list view. 
android:selectable Whether the Preference is selectable. 
android:shouldDisableView Whether the view of this Preference should be disabled when this Preference is disabled. 
android:singleLineTitle Whether to use single line for the preference title text. 
android:summary The summary for the Preference. 
android:title The title for the Preference. 
android:widgetLayout The layout for the controllable widget portion of a Preference. 

Inherited constants

int DEFAULT_ORDER

Specify for setOrder(int) if a specific order is not required.

Public constructors

DialogPreference(Context context)
DialogPreference(Context context, AttributeSet attrs)
DialogPreference(Context context, AttributeSet attrs, int defStyleAttr)
DialogPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Public methods

Dialog getDialog()

Gets the dialog that is shown by this preference.

Drawable getDialogIcon()

Returns the icon to be shown on subsequent dialogs.

int getDialogLayoutResource()

Returns the layout resource that is used as the content View for subsequent dialogs.

CharSequence getDialogMessage()

Returns the message to be shown on subsequent dialogs.

CharSequence getDialogTitle()

Returns the title to be shown on subsequent dialogs.

CharSequence getNegativeButtonText()

Returns the text of the negative button to be shown on subsequent dialogs.

CharSequence getPositiveButtonText()

Returns the text of the positive button to be shown on subsequent dialogs.

void onActivityDestroy()

See Activity's onDestroy.

void onClick(DialogInterface dialog, int which)

This method will be invoked when a button in the dialog is clicked.

void onDismiss(DialogInterface dialog)

This method will be invoked when the dialog is dismissed.

void setDialogIcon(int dialogIconRes)

Sets the icon (resource ID) of the dialog.

void setDialogIcon(Drawable dialogIcon)

Sets the icon of the dialog.

void setDialogLayoutResource(int dialogLayoutResId)

Sets the layout resource that is inflated as the View to be shown as the content View of subsequent dialogs.

void setDialogMessage(CharSequence dialogMessage)

Sets the message of the dialog.

void setDialogMessage(int dialogMessageResId)
void setDialogTitle(int dialogTitleResId)
void setDialogTitle(CharSequence dialogTitle)

Sets the title of the dialog.

void setNegativeButtonText(CharSequence negativeButtonText)

Sets the text of the negative button of the dialog.

void setNegativeButtonText(int negativeButtonTextResId)
void setPositiveButtonText(int positiveButtonTextResId)
void setPositiveButtonText(CharSequence positiveButtonText)

Sets the text of the positive button of the dialog.

Protected methods

void onBindDialogView(View view)

Binds views in the content View of the dialog to data.

void onClick()

Processes a click on the preference.

View onCreateDialogView()

Creates the content view for the dialog (if a custom content view is required).

void onDialogClosed(boolean positiveResult)

Called when the dialog is dismissed and should be used to save data to the SharedPreferences.

void onPrepareDialogBuilder(AlertDialog.Builder builder)

Prepares the dialog builder to be shown when the preference is clicked.

void onRestoreInstanceState(Parcelable state)

Hook allowing a Preference to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState().

Parcelable onSaveInstanceState()

Hook allowing a Preference to generate a representation of its internal state that can later be used to create a new instance with that same state.

void showDialog(Bundle state)

Shows the dialog associated with this Preference.

Inherited methods

boolean callChangeListener(Object newValue)

Call this method after the user changes the preference, but before the internal state is set.

int compareTo(Preference another)

Compares Preference objects based on order (if set), otherwise alphabetically on the titles.

Preference findPreferenceInHierarchy(String key)

Finds a Preference in this hierarchy (the whole thing, even above/below your PreferenceScreen screen break) with the given key.

Context getContext()

Returns the Context of this Preference.

String getDependency()

Returns the key of the dependency on this Preference.

SharedPreferences.Editor getEditor()

Returns an SharedPreferences.Editor where this Preference can save its value(s).

Bundle getExtras()

Return the extras Bundle object associated with this preference, creating a new Bundle if there currently isn't one.

String getFragment()

Return the fragment class name associated with this Preference.

Drawable getIcon()

Returns the icon of this Preference.

Intent getIntent()

Return the Intent associated with this Preference.

String getKey()

Gets the key for this Preference, which is also the key used for storing values into SharedPreferences or PreferenceDataStore.

int getLayoutResource()

Gets the layout resource that will be shown as the View for this Preference.

Preference.OnPreferenceChangeListener getOnPreferenceChangeListener()

Returns the callback to be invoked when this Preference is changed by the user (but before the internal state has been updated).

Preference.OnPreferenceClickListener getOnPreferenceClickListener()

Returns the callback to be invoked when this Preference is clicked.

int getOrder()

Gets the order of this Preference with respect to other Preference objects on the same level.

PreferenceGroup getParent()

Returns the PreferenceGroup which is this Preference assigned to or null if this preference is not assigned to any group or is a root Preference.

boolean getPersistedBoolean(boolean defaultReturnValue)

Attempts to get a persisted boolean if this Preference is persistent.

float getPersistedFloat(float defaultReturnValue)

Attempts to get a persisted float if this Preference is persistent.

int getPersistedInt(int defaultReturnValue)

Attempts to get a persisted int if this Preference is persistent.

long getPersistedLong(long defaultReturnValue)

Attempts to get a persisted long if this Preference is persistent.

String getPersistedString(String defaultReturnValue)

Attempts to get a persisted String if this Preference is persistent.

Set<String> getPersistedStringSet(Set<String> defaultReturnValue)

Attempts to get a persisted set of Strings if this Preference is persistent.

PreferenceDataStore getPreferenceDataStore()

Returns PreferenceDataStore used by this Preference.

PreferenceManager getPreferenceManager()

Gets the PreferenceManager that manages this Preference object's tree.

SharedPreferences getSharedPreferences()

Returns the SharedPreferences where this Preference can read its value(s).

boolean getShouldDisableView()

Checks whether this Preference should disable its view when it's action is disabled.

CharSequence getSummary()

Returns the summary of this Preference.

CharSequence getTitle()

Returns the title of this Preference.

int getTitleRes()

Returns the title resource ID of this Preference.

View getView(View convertView, ViewGroup parent)

Gets the View that will be shown in the PreferenceActivity.

int getWidgetLayoutResource()

Gets the layout resource for the controllable widget portion of this Preference.

boolean hasKey()

Checks whether this Preference has a valid key.

boolean isEnabled()

Checks whether this Preference should be enabled in the list.

boolean isIconSpaceReserved()

Gets whether the space this preference icon view is reserved.

boolean isPersistent()

Checks whether this Preference is persistent.

boolean isRecycleEnabled()

Checks whether this Preference has enabled to have its view recycled when used in the list view.

boolean isSelectable()

Checks whether this Preference should be selectable in the list.

boolean isSingleLineTitle()

Gets whether the title of this preference is constrained to a single line.

void notifyChanged()

Should be called when the data of this Preference has changed.

void notifyDependencyChange(boolean disableDependents)

Notifies any listening dependents of a change that affects the dependency.

void notifyHierarchyChanged()

Should be called when a Preference has been added/removed from this group, or the ordering should be re-evaluated.

void onAttachedToActivity()

Called when the Preference hierarchy has been attached to the PreferenceActivity.

void onAttachedToHierarchy(PreferenceManager preferenceManager)

Called when this Preference has been attached to a Preference hierarchy.

void onBindView(View view)

Binds the created View to the data for this Preference.

void onClick()

Processes a click on the preference.

View onCreateView(ViewGroup parent)

Creates the View to be shown for this Preference in the PreferenceActivity.

void onDependencyChanged(Preference dependency, boolean disableDependent)

Called when the dependency changes.

Object onGetDefaultValue(TypedArray a, int index)

Called when a Preference is being inflated and the default value attribute needs to be read.

void onParentChanged(Preference parent, boolean disableChild)

Called when the implicit parent dependency changes.

void onPrepareForRemoval()

Called when this Preference is being removed from the hierarchy.

void onRestoreInstanceState(Parcelable state)

Hook allowing a Preference to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState().

Parcelable onSaveInstanceState()

Hook allowing a Preference to generate a representation of its internal state that can later be used to create a new instance with that same state.

void onSetInitialValue(boolean restorePersistedValue, Object defaultValue)

Implement this to set the initial value of the Preference.

Bundle peekExtras()

Return the extras Bundle object associated with this preference, returning null if there is not currently one.

boolean persistBoolean(boolean value)

Attempts to persist a boolean if this Preference is persistent.

boolean persistFloat(float value)

Attempts to persist a long if this Preference is persistent.

boolean persistInt(int value)

Attempts to persist an int if this Preference is persistent.

boolean persistLong(long value)

Attempts to persist a long if this Preference is persistent.

boolean persistString(String value)

Attempts to persist a String if this Preference is persistent.

boolean persistStringSet(Set<String> values)

Attempts to persist a set of Strings if this Preference is persistent.

void restoreHierarchyState(Bundle container)

Restore this Preference hierarchy's previously saved state from the given container.

void saveHierarchyState(Bundle container)

Store this Preference hierarchy's frozen state into the given container.

void setDefaultValue(Object defaultValue)

Sets the default value for this Preference, which will be set either if persistence is off or persistence is on and the preference is not found in the persistent storage.

void setDependency(String dependencyKey)

Sets the key of a Preference that this Preference will depend on.

void setEnabled(boolean enabled)

Sets whether this Preference is enabled.

void setFragment(String fragment)

Sets the class name of a fragment to be shown when this Preference is clicked.

void setIcon(Drawable icon)

Sets the icon for this Preference with a Drawable.

void setIcon(int iconResId)

Sets the icon for this Preference with a resource ID.

void setIconSpaceReserved(boolean iconSpaceReserved)

Sets whether to reserve the space of this Preference icon view when no icon is provided.

void setIntent(Intent intent)

Sets an Intent to be used for Context.startActivity(Intent) when this Preference is clicked.

void setKey(String key)

Sets the key for this Preference, which is used as a key to the SharedPreferences or PreferenceDataStore.

void setLayoutResource(int layoutResId)

Sets the layout resource that is inflated as the View to be shown for this Preference.

void setOnPreferenceChangeListener(Preference.OnPreferenceChangeListener onPreferenceChangeListener)

Sets the callback to be invoked when this Preference is changed by the user (but before the internal state has been updated).

void setOnPreferenceClickListener(Preference.OnPreferenceClickListener onPreferenceClickListener)

Sets the callback to be invoked when this Preference is clicked.

void setOrder(int order)

Sets the order of this Preference with respect to other Preference objects on the same level.

void setPersistent(boolean persistent)

Sets whether this Preference is persistent.

void setPreferenceDataStore(PreferenceDataStore dataStore)

Sets a PreferenceDataStore to be used by this Preference instead of using SharedPreferences.

void setRecycleEnabled(boolean enabled)

Sets whether this Preference has enabled to have its view recycled when used in the list view.

void setSelectable(boolean selectable)

Sets whether this Preference is selectable.

void setShouldDisableView(boolean shouldDisableView)

Sets whether this Preference should disable its view when it gets disabled.

void setSingleLineTitle(boolean singleLineTitle)

Sets whether to constrain the title of this Preference to a single line instead of letting it wrap onto multiple lines.

void setSummary(CharSequence summary)

Sets the summary for this Preference with a CharSequence.

void setSummary(int summaryResId)

Sets the summary for this Preference with a resource ID.

void setTitle(CharSequence title)

Sets the title for this Preference with a CharSequence.

void setTitle(int titleResId)

Sets the title for this Preference with a resource ID.

void setWidgetLayoutResource(int widgetLayoutResId)

Sets the layout for the controllable widget portion of this Preference.

boolean shouldCommit()

Returns whether the Preference should commit its saved value(s) in getEditor().

boolean shouldDisableDependents()

Checks whether this preference's dependents should currently be disabled.

boolean shouldPersist()

Checks whether, at the given time this method is called, this Preference should store/restore its value(s) into the SharedPreferences or into PreferenceDataStore if assigned.

String toString()

Returns a string representation of the object.

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the object.

final void notify()

Wakes up a single thread that is waiting on this object's monitor.

final void notifyAll()

Wakes up all threads that are waiting on this object's monitor.

String toString()

Returns a string representation of the object.

final void wait(long timeoutMillis, int nanos)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait(long timeoutMillis)

Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

final void wait()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

abstract int compareTo(Preference o)

Compares this object with the specified object for order.

abstract void onClick(DialogInterface dialog, int which)

This method will be invoked when a button in the dialog is clicked.

abstract void onDismiss(DialogInterface dialog)

This method will be invoked when the dialog is dismissed.

abstract void onActivityDestroy()

See Activity's onDestroy.

XML attributes

android:dialogIcon

The icon for the dialog.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

android:dialogLayout

A layout to be used as the content View for the dialog. By default, this shouldn't be needed. If a custom DialogPreference is required, this should be set. For example, the EditTextPreference uses a layout with an EditText as this attribute.

May be a reference to another resource, in the form "@[+][package:]type/name" or a theme attribute in the form "?[package:]type/name".

android:dialogMessage

The message in the dialog. If a dialogLayout is provided and contains a TextView with ID android:id/message, this message will be placed in there.

May be a string value, using '\\;' to escape characters such as '\\n' or '\\uxxxx' for a unicode character;

android:dialogTitle

The title in the dialog.

May be a string value, using '\\;' to escape characters such as '\\n' or '\\uxxxx' for a unicode character;

android:negativeButtonText

The negative button text for the dialog. Set to @null to hide the negative button.

May be a string value, using '\\;' to escape characters such as '\\n' or '\\uxxxx' for a unicode character;

android:positiveButtonText

The positive button text for the dialog. Set to @null to hide the positive button.

May be a string value, using '\\;' to escape characters such as '\\n' or '\\uxxxx' for a unicode character;

Public constructors

DialogPreference

Added in API level 21
public DialogPreference (Context context)

Parameters
context Context

DialogPreference

Added in API level 1
public DialogPreference (Context context, 
                AttributeSet attrs)

Parameters
context Context

attrs AttributeSet

DialogPreference

Added in API level 1
public DialogPreference (Context context, 
                AttributeSet attrs, 
                int defStyleAttr)

Parameters
context Context

attrs AttributeSet

defStyleAttr int

DialogPreference

Added in API level 21
public DialogPreference (Context context, 
                AttributeSet attrs, 
                int defStyleAttr, 
                int defStyleRes)

Parameters
context Context

attrs AttributeSet

defStyleAttr int

defStyleRes int

Public methods

getDialog

Added in API level 3
Deprecated in API level 29
public Dialog getDialog ()

Gets the dialog that is shown by this preference.

Returns
Dialog The dialog, or null if a dialog is not being shown.

getDialogIcon

Added in API level 1
public Drawable getDialogIcon ()

Returns the icon to be shown on subsequent dialogs.

Returns
Drawable The icon, as a Drawable.

getDialogLayoutResource

Added in API level 1
public int getDialogLayoutResource ()

Returns the layout resource that is used as the content View for subsequent dialogs.

Returns
int The layout resource.

getDialogMessage

Added in API level 1
public CharSequence getDialogMessage ()

Returns the message to be shown on subsequent dialogs.

Returns
CharSequence The message.

getDialogTitle

Added in API level 1
public CharSequence getDialogTitle ()

Returns the title to be shown on subsequent dialogs.

Returns
CharSequence The title.

getNegativeButtonText

Added in API level 1
public CharSequence getNegativeButtonText ()

Returns the text of the negative button to be shown on subsequent dialogs.

Returns
CharSequence The text of the negative button.

getPositiveButtonText

Added in API level 1
public CharSequence getPositiveButtonText ()

Returns the text of the positive button to be shown on subsequent dialogs.

Returns
CharSequence The text of the positive button.

onActivityDestroy

Added in API level 1
public void onActivityDestroy ()

See Activity's onDestroy.

onClick

Added in API level 1
public void onClick (DialogInterface dialog, 
                int which)

This method will be invoked when a button in the dialog is clicked.

Parameters
dialog DialogInterface: the dialog that received the click

which int: the button that was clicked (ex. DialogInterface.BUTTON_POSITIVE) or the position of the item clicked

onDismiss

Added in API level 1
public void onDismiss (DialogInterface dialog)

This method will be invoked when the dialog is dismissed.

Parameters
dialog DialogInterface: the dialog that was dismissed will be passed into the method

setDialogIcon

Added in API level 1
public void setDialogIcon (int dialogIconRes)

Sets the icon (resource ID) of the dialog. This will be shown on subsequent dialogs.

Parameters
dialogIconRes int: The icon, as a resource ID.

setDialogIcon

Added in API level 1
public void setDialogIcon (Drawable dialogIcon)

Sets the icon of the dialog. This will be shown on subsequent dialogs.

Parameters
dialogIcon Drawable: The icon, as a Drawable.

setDialogLayoutResource

Added in API level 1
public void setDialogLayoutResource (int dialogLayoutResId)

Sets the layout resource that is inflated as the View to be shown as the content View of subsequent dialogs.

Parameters
dialogLayoutResId int: The layout resource ID to be inflated.

setDialogMessage

Added in API level 1
public void setDialogMessage (CharSequence dialogMessage)

Sets the message of the dialog. This will be shown on subsequent dialogs.

This message forms the content View of the dialog and conflicts with list-based dialogs, for example. If setting a custom View on a dialog via setDialogLayoutResource(int), include a text View with ID R.id.message and it will be populated with this message.

Parameters
dialogMessage CharSequence: The message.

setDialogMessage

Added in API level 1
public void setDialogMessage (int dialogMessageResId)

Parameters
dialogMessageResId int: The dialog message as a resource.

setDialogTitle

Added in API level 1
public void setDialogTitle (int dialogTitleResId)

Parameters
dialogTitleResId int: The dialog title as a resource.

setDialogTitle

Added in API level 1
public void setDialogTitle (CharSequence dialogTitle)

Sets the title of the dialog. This will be shown on subsequent dialogs.

Parameters
dialogTitle CharSequence: The title.

setNegativeButtonText

Added in API level 1
public void setNegativeButtonText (CharSequence negativeButtonText)

Sets the text of the negative button of the dialog. This will be shown on subsequent dialogs.

Parameters
negativeButtonText CharSequence: The text of the negative button.

setNegativeButtonText

Added in API level 1
public void setNegativeButtonText (int negativeButtonTextResId)

Parameters
negativeButtonTextResId int: The negative button text as a resource.

setPositiveButtonText

Added in API level 1
public void setPositiveButtonText (int positiveButtonTextResId)

Parameters
positiveButtonTextResId int: The positive button text as a resource.

setPositiveButtonText

Added in API level 1
public void setPositiveButtonText (CharSequence positiveButtonText)

Sets the text of the positive button of the dialog. This will be shown on subsequent dialogs.

Parameters
positiveButtonText CharSequence: The text of the positive button.

Protected methods

onBindDialogView

Added in API level 1
protected void onBindDialogView (View view)

Binds views in the content View of the dialog to data.

Make sure to call through to the superclass implementation.
If you override this method you must call through to the superclass implementation.

Parameters
view View: The content View of the dialog, if it is custom.

onClick

Added in API level 1
protected void onClick ()

Processes a click on the preference. This includes saving the value to the SharedPreferences. However, the overridden method should call callChangeListener(java.lang.Object) to make sure the client wants to update the preference's state with the new value.

onCreateDialogView

Added in API level 1
protected View onCreateDialogView ()

Creates the content view for the dialog (if a custom content view is required). By default, it inflates the dialog layout resource if it is set.

Returns
View The content View for the dialog.

onDialogClosed

Added in API level 1
protected void onDialogClosed (boolean positiveResult)

Called when the dialog is dismissed and should be used to save data to the SharedPreferences.

Parameters
positiveResult boolean: Whether the positive button was clicked (true), or the negative button was clicked or the dialog was canceled (false).

onPrepareDialogBuilder

Added in API level 1
protected void onPrepareDialogBuilder (AlertDialog.Builder builder)

Prepares the dialog builder to be shown when the preference is clicked. Use this to set custom properties on the dialog.

Do not AlertDialog.Builder.create() or AlertDialog.Builder.show().

Parameters
builder AlertDialog.Builder

onRestoreInstanceState

Added in API level 1
protected void onRestoreInstanceState (Parcelable state)

Hook allowing a Preference to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState(). This function will never be called with a null state.

Parameters
state Parcelable: The saved state that had previously been returned by onSaveInstanceState().

onSaveInstanceState

Added in API level 1
protected Parcelable onSaveInstanceState ()

Hook allowing a Preference to generate a representation of its internal state that can later be used to create a new instance with that same state. This state should only contain information that is not persistent or can be reconstructed later.

Returns
Parcelable A Parcelable object containing the current dynamic state of this Preference, or null if there is nothing interesting to save. The default implementation returns null.

showDialog

Added in API level 1
protected void showDialog (Bundle state)

Shows the dialog associated with this Preference. This is normally initiated automatically on clicking on the preference. Call this method if you need to show the dialog on some other event.

Parameters
state Bundle: Optional instance state to restore on the dialog