PreferenceGroup

Artifact: androidx.preference:preference

Added in 1.0.0

Kotlin |Java

abstract class PreferenceGroup : Preference

kotlin.Any
↳	androidx.preference.Preference
	↳	androidx.preference.PreferenceGroup

Known direct subclasses

PreferenceCategory, PreferenceScreen

`PreferenceCategory`	A container that is used to group similar `Preference`s.
`PreferenceScreen`	A top-level container that represents a settings screen.

A container for multiple Preferences. It is a base class for preference objects that are parents, such as PreferenceCategory and PreferenceScreen.

name android:orderingFromXml

name initialExpandedChildrenCount

Summary

Nested types
`interface PreferenceGroup.PreferencePositionCallback` Interface for PreferenceGroup adapters to implement so that `scrollToPreference` and `scrollToPreference` can determine the correct scroll position to request.

Public constructors
`PreferenceGroup(context: Context, attrs: AttributeSet?)`
`PreferenceGroup(context: Context, attrs: AttributeSet?, defStyleAttr: Int)`
`PreferenceGroup( context: Context, attrs: AttributeSet?, defStyleAttr: Int, defStyleRes: Int )`

Public functions
`Unit`	`addItemFromInflater(preference: Preference)` Called by the inflater to add an item to this group.
`Boolean`	`addPreference(preference: Preference)` Adds a `Preference` at the correct position based on the preference's order.
`T?`	`<T : Preference?> findPreference(key: CharSequence)` Finds a `Preference` based on its key.
`Int`	`getInitialExpandedChildrenCount()` Gets the maximal number of children that are initially shown.
`Preference`	`getPreference(index: Int)` Returns the `Preference` at a particular index.
`Int`	`getPreferenceCount()` Returns the number of children `Preference`s.
`Boolean`	`isOrderingAsAdded()` Whether this group is ordering preferences in the order they are added.
`Unit`	`notifyDependencyChange(disableDependents: Boolean)` Notifies any listening dependents of a change that affects the dependency.
`Unit`	`onAttached()` Called when the preference hierarchy has been attached to the list of preferences.
`Unit`	`onDetached()` Called when the preference hierarchy has been detached from the list of preferences.
`Unit`	`removeAll()` Removes all `Preference`s from this group.
`Boolean`	`removePreference(preference: Preference)` Removes a `Preference` from this group.
`Boolean`	`removePreferenceRecursively(key: CharSequence)` Recursively finds and removes a `Preference` from this group or a nested group lower down in the hierarchy.
`Unit`	`setInitialExpandedChildrenCount(expandedCount: Int)` Sets the maximal number of children that are shown when the preference group is launched where the rest of the children will be hidden.
`Unit`	`setOrderingAsAdded(orderingAsAdded: Boolean)` Whether to order the `Preference` children of this group as they are added.

Protected functions
`Unit`	`dispatchRestoreInstanceState(container: Bundle)` Called by `restoreHierarchyState` to retrieve the saved state for this preference and its children.
`Unit`	`dispatchSaveInstanceState(container: Bundle)` Called by `saveHierarchyState` to store the instance for this preference and its children.
`Boolean`	`isOnSameScreenAsChildren()` Whether this preference group should be shown on the same screen as its contained preferences.
`Boolean`	`onPrepareAddPreference(preference: Preference)` Prepares a `Preference` to be added to the group.
`Unit`	`onRestoreInstanceState(state: Parcelable?)` 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.

Extension functions
`operator Boolean`	`PreferenceGroup.contains(preference: Preference)` Returns `true` if `preference` is found in this preference group.
`inline Unit`	`PreferenceGroup.forEach(action: (preference: Preference) -> Unit)` Performs the given action on each preference in this preference group.
`inline Unit`	`PreferenceGroup.forEachIndexed( action: (index: Int, preference: Preference) -> Unit )` Performs the given action on each preference in this preference group, providing its sequential index.
`operator Preference`	`PreferenceGroup.get(index: Int)` Returns the preference at `index`.
`inline operator T?`	`<T : Preference> PreferenceGroup.get(key: CharSequence)` Returns the preference with `key`, or `null` if no preference with `key` is found.
`inline Boolean`	`PreferenceGroup.isEmpty()` Returns true if this preference group contains no preferences.
`inline Boolean`	`PreferenceGroup.isNotEmpty()` Returns true if this preference group contains one or more preferences.
`operator Iterator<Preference>`	`PreferenceGroup.iterator()` Returns a `MutableIterator` over the preferences in this preference group.
`inline operator Unit`	`PreferenceGroup.minusAssign(preference: Preference)` Removes `preference` from this preference group.
`inline operator Unit`	`PreferenceGroup.plusAssign(preference: Preference)` Adds `preference` to this preference group.

Extension properties
`Sequence<Preference>`	`PreferenceGroup.children` Returns a `Sequence` over the preferences in this preference group.
`Int`	`PreferenceGroup.size` Returns the number of preferences in this preference group.

Inherited Constants

From androidx.preference.Preference

const Int

DEFAULT_ORDER = 2147483647

Specify for setOrder if a specific order is not required.

Inherited functions

From java.lang.Comparable

abstract Int

compareTo(p: T!)

From androidx.preference.Preference

`Boolean`	`callChangeListener(newValue: Any!)` Call this method after the user changes the preference, but before the internal state is set.
`Int`	`compareTo(another: Preference)` Compares preference objects based on order (if set), otherwise alphabetically on the titles.
`T?`	`<T : Preference?> findPreferenceInHierarchy(key: String)` Finds a preference in the entire hierarchy (above or below this preference) with the given key.
`Context`	`getContext()` Returns the `Context` of this preference.
`String?`	`getDependency()` Returns the key of the dependency on this preference.
`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(defaultReturnValue: Boolean)` Attempts to get a persisted `Boolean` if this preference is persistent.
`Float`	`getPersistedFloat(defaultReturnValue: Float)` Attempts to get a persisted `Float` if this preference is persistent.
`Int`	`getPersistedInt(defaultReturnValue: Int)` Attempts to get a persisted `Integer` if this preference is persistent.
`Long`	`getPersistedLong(defaultReturnValue: Long)` Attempts to get a persisted `Long` if this preference is persistent.
`String!`	`getPersistedString(defaultReturnValue: String!)` Attempts to get a persisted set of Strings if this preference is persistent.
`(Mutable)Set<String!>!`	`getPersistedStringSet(defaultReturnValue: (Mutable)Set<String!>!)` 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.
`Preference.SummaryProvider?`	`getSummaryProvider()` Returns the `SummaryProvider` used to configure the summary of this preference.
`CharSequence?`	`getTitle()` Returns the title of this preference.
`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`	`isCopyingEnabled()` Returns whether the summary of this preference can be copied to the clipboard by long pressing on the preference.
`Boolean`	`isEnabled()` Checks whether this preference should be enabled in the list.
`Boolean`	`isIconSpaceReserved()` Returns whether the space of this preference icon view is reserved.
`Boolean`	`isPersistent()` Checks whether this preference is persistent.
`Boolean`	`isSelectable()` Checks whether this preference should be selectable in the list.
`Boolean`	`isShown()` Checks whether this preference is shown to the user in the hierarchy.
`Boolean`	`isSingleLineTitle()` Gets whether the title of this preference is constrained to a single line.
`Boolean`	`isVisible()` Checks whether this preference should be visible to the user.
`Unit`	`notifyChanged()` Should be called when the data of this `Preference` has changed.
`Unit`	`notifyHierarchyChanged()` Should be called when a preference has been added/removed from this group, or the ordering should be re-evaluated.
`Unit`	`onAttachedToHierarchy(preferenceManager: PreferenceManager)` Called when this preference has been attached to a preference hierarchy.
`Unit`	`onBindViewHolder(holder: PreferenceViewHolder)` Binds the created View to the data for this preference.
`Unit`	`onClick()` Processes a click on the preference.
`Unit`	`onDependencyChanged(dependency: Preference, disableDependent: Boolean)` Called when the dependency changes.
`Any?`	`onGetDefaultValue(a: TypedArray, index: Int)` Called when a preference is being inflated and the default value attribute needs to be read.
`Unit`	`@CallSuper onInitializeAccessibilityNodeInfo(info: AccessibilityNodeInfoCompat!)` This function is deprecated. Preferences aren't views.
`Unit`	`onParentChanged(parent: Preference, disableChild: Boolean)` Called when the implicit parent dependency changes.
`Unit`	`onPrepareForRemoval()` Called when this preference is being removed from the hierarchy.
`Unit`	`onSetInitialValue(defaultValue: Any?)` Implement this to set the initial value of the preference.
`Unit`	`onSetInitialValue(restorePersistedValue: Boolean, defaultValue: Any!)` This function is deprecated. Use `onSetInitialValue` instead.
`Bundle?`	`peekExtras()` Return the extras Bundle object associated with this preference, returning `null` if there is not currently one.
`Boolean`	`persistBoolean(value: Boolean)` Attempts to persist a `Boolean` if this preference is persistent.
`Boolean`	`persistFloat(value: Float)` Attempts to persist a `Float` if this preference is persistent.
`Boolean`	`persistInt(value: Int)` Attempts to persist an `Integer` if this preference is persistent.
`Boolean`	`persistLong(value: Long)` Attempts to persist a `Long` if this preference is persistent.
`Boolean`	`persistString(value: String!)` Attempts to persist a `String` if this preference is persistent.
`Boolean`	`persistStringSet(values: (Mutable)Set<String!>!)` Attempts to persist a set of Strings if this preference is persistent.
`Unit`	`restoreHierarchyState(container: Bundle)` Restore this preference hierarchy's previously saved state from the given container.
`Unit`	`saveHierarchyState(container: Bundle)` Store this preference hierarchy's frozen state into the given container.
`Unit`	`setCopyingEnabled(enabled: Boolean)` Sets whether the summary of this preference can be copied to the clipboard by long pressing on the preference.
`Unit`	`setDefaultValue(defaultValue: Any!)` 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.
`Unit`	`setDependency(dependencyKey: String?)` Sets the key of a preference that this preference will depend on.
`Unit`	`setEnabled(enabled: Boolean)` Sets whether this preference is enabled.
`Unit`	`setFragment(fragment: String?)` Sets the class name of a fragment to be shown when this preference is clicked.
`Unit`	`setIcon(icon: Drawable?)` Sets the icon for this preference with a Drawable.
`Unit`	`setIcon(iconResId: Int)` Sets the icon for this preference with a resource ID.
`Unit`	`setIconSpaceReserved(iconSpaceReserved: Boolean)` Sets whether to reserve the space of this preference icon view when no icon is provided.
`Unit`	`setIntent(intent: Intent?)` Sets an `Intent` to be used for `startActivity` when this preference is clicked.
`Unit`	`setKey(key: String!)` Sets the key for this preference, which is used as a key to the `SharedPreferences` or `PreferenceDataStore`.
`Unit`	`setLayoutResource(layoutResId: Int)` Sets the layout resource that is inflated as the `View` to be shown for this preference.
`Unit`	`setOnPreferenceChangeListener( onPreferenceChangeListener: Preference.OnPreferenceChangeListener? )` Sets the callback to be invoked when this preference is changed by the user (but before the internal state has been updated).
`Unit`	`setOnPreferenceClickListener( onPreferenceClickListener: Preference.OnPreferenceClickListener? )` Sets the callback to be invoked when this preference is clicked.
`Unit`	`setOrder(order: Int)` Sets the order of this preference with respect to other preference objects on the same level.
`Unit`	`setPersistent(persistent: Boolean)` Sets whether this preference is persistent.
`Unit`	`setPreferenceDataStore(dataStore: PreferenceDataStore?)` Sets a `PreferenceDataStore` to be used by this preference instead of using `SharedPreferences`.
`Unit`	`setSelectable(selectable: Boolean)` Sets whether this preference is selectable.
`Unit`	`setShouldDisableView(shouldDisableView: Boolean)` Sets whether this preference should disable its view when it gets disabled.
`Unit`	`setSingleLineTitle(singleLineTitle: Boolean)` Sets whether to constrain the title of this preference to a single line instead of letting it wrap onto multiple lines.
`Unit`	`setSummary(summary: CharSequence?)` Sets the summary for this preference with a CharSequence.
`Unit`	`setSummary(summaryResId: Int)` Sets the summary for this preference with a resource ID.
`Unit`	`setSummaryProvider(summaryProvider: Preference.SummaryProvider?)` Set a `SummaryProvider` that will be invoked whenever the summary of this preference is requested.
`Unit`	`setTitle(title: CharSequence?)` Sets the title for this preference with a CharSequence.
`Unit`	`setTitle(titleResId: Int)` Sets the title for this preference with a resource ID.
`Unit`	`setViewId(viewId: Int)` Set the ID that will be assigned to the overall View representing this preference, once bound.
`Unit`	`setVisible(visible: Boolean)` Sets whether this preference should be visible to the user.
`Unit`	`setWidgetLayoutResource(widgetLayoutResId: Int)` Sets the layout for the controllable widget portion of this preference.
`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()`

Public constructors

PreferenceGroup

Added in 1.0.0

PreferenceGroup(context: Context, attrs: AttributeSet?)

PreferenceGroup

Added in 1.0.0

PreferenceGroup(context: Context, attrs: AttributeSet?, defStyleAttr: Int)

PreferenceGroup

Added in 1.0.0

PreferenceGroup(
    context: Context,
    attrs: AttributeSet?,
    defStyleAttr: Int,
    defStyleRes: Int
)

Public functions

addItemFromInflater

Added in 1.0.0

fun addItemFromInflater(preference: Preference): Unit

Called by the inflater to add an item to this group.

addPreference

Added in 1.0.0

fun addPreference(preference: Preference): Boolean

Adds a Preference at the correct position based on the preference's order.

Parameters
`preference: Preference`	The preference to add

Returns
`Boolean`	Whether the preference is now in this group

findPreference

Added in 1.1.0

fun <T : Preference?> findPreference(key: CharSequence): T?

Finds a Preference based on its key. If two Preferences share the same key (not recommended), the first to appear will be returned.

This will recursively search for the Preference in any children that are also PreferenceGroups.

Parameters
`key: CharSequence`	The key of the `Preference` to retrieve

Returns
`T?`	The `Preference` with the key, or `null`

getInitialExpandedChildrenCount

Added in 1.0.0

fun getInitialExpandedChildrenCount(): Int

Gets the maximal number of children that are initially shown.

Returns
`Int`	The maximal number of children that are initially shown `initialExpandedChildrenCount`

getPreference

Added in 1.0.0

fun getPreference(index: Int): Preference

Returns the Preference at a particular index.

Parameters
`index: Int`	The index of the `Preference` to retrieve

Returns
`Preference`	The `Preference`

getPreferenceCount

Added in 1.0.0

fun getPreferenceCount(): Int

Returns the number of children Preferences.

Returns
`Int`	The number of preference children in this group

isOrderingAsAdded

Added in 1.0.0

fun isOrderingAsAdded(): Boolean

Whether this group is ordering preferences in the order they are added.

Returns
`Boolean`	Whether this group orders based on the order the children are added

See also
`setOrderingAsAdded`

notifyDependencyChange

fun notifyDependencyChange(disableDependents: Boolean): Unit

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

Parameters
`disableDependents: Boolean`	Whether this preference should disable its dependents.

onAttached

fun onAttached(): Unit

Called when the preference hierarchy has been attached to the list of preferences. This can also be called when this preference has been attached to a group that was already attached to the list of preferences.

onDetached

fun onDetached(): Unit

Called when the preference hierarchy has been detached from the list of preferences. This can also be called when this preference has been removed from a group that was attached to the list of preferences.

removeAll

Added in 1.0.0

fun removeAll(): Unit

Removes all Preferences from this group.

removePreference

Added in 1.0.0

fun removePreference(preference: Preference): Boolean

Removes a Preference from this group.

Note: This action is not recursive, and will only remove a preference if it exists in this group, ignoring preferences found in nested groups. Use removePreferenceRecursively to recursively find and remove a preference.

Parameters
`preference: Preference`	The preference to remove

Returns
`Boolean`	Whether the preference was found and removed

See also
`removePreferenceRecursively`

removePreferenceRecursively

Added in 1.1.0

fun removePreferenceRecursively(key: CharSequence): Boolean

Recursively finds and removes a Preference from this group or a nested group lower down in the hierarchy. If two Preferences share the same key (not recommended), the first to appear will be removed.

Parameters
`key: CharSequence`	The key of the preference to remove

Returns
`Boolean`	Whether the preference was found and removed

See also
`findPreference`

setInitialExpandedChildrenCount

Added in 1.0.0

fun setInitialExpandedChildrenCount(expandedCount: Int): Unit

Sets the maximal number of children that are shown when the preference group is launched where the rest of the children will be hidden. If some children are hidden an expand button will be provided to show all the hidden children. Any child in any level of the hierarchy that is also a preference group (e.g. preference category) will not be counted towards the limit. But instead the children of such group will be counted. By default, all children will be shown, so the default value of this attribute is equal to Integer.MAX_VALUE.

Note: The group should have a key defined if an expandable preference is present to correctly persist state.

Parameters
`expandedCount: Int`	The number of children that is initially shown `initialExpandedChildrenCount`

setOrderingAsAdded

Added in 1.0.0

fun setOrderingAsAdded(orderingAsAdded: Boolean): Unit

Whether to order the Preference children of this group as they are added. If this is false, the ordering will follow each Preference order and default to alphabetic for those without an order.

If this is called after preferences are added, they will not be re-ordered in the order they were added, hence call this method early on.

Parameters
`orderingAsAdded: Boolean`	Whether to order according to the order added

See also
`setOrder`

Protected functions

dispatchRestoreInstanceState

Added in 1.0.0

protected fun dispatchRestoreInstanceState(container: Bundle): Unit

Called by restoreHierarchyState to retrieve the saved state for this preference and its children. May be overridden to modify how restoring happens to the children of a preference. For example, some preference objects may not want to save state for their children.

Parameters
`container: Bundle`	The Bundle that holds the previously saved state

See also
`restoreHierarchyState`
`onRestoreInstanceState`

dispatchSaveInstanceState

Added in 1.0.0

protected fun dispatchSaveInstanceState(container: Bundle): Unit

Called by saveHierarchyState to store the instance for this preference and its children. May be overridden to modify how the save happens for children. For example, some preference objects may want to not store an instance for their children.

Parameters
`container: Bundle`	The Bundle in which to save the instance of this preference

See also
`saveHierarchyState`
`onSaveInstanceState`

isOnSameScreenAsChildren

Added in 1.0.0

protected fun isOnSameScreenAsChildren(): Boolean

Whether this preference group should be shown on the same screen as its contained preferences.

Returns
`Boolean`	`true` if the contained preferences should be shown on the same screen as this preference.

onPrepareAddPreference

Added in 1.0.0

protected fun onPrepareAddPreference(preference: Preference): Boolean

Prepares a Preference to be added to the group.

Parameters
`preference: Preference`	The preference to add

Returns
`Boolean`	Whether to allow adding the preference (`true`), or not (`false`)

onRestoreInstanceState

protected fun onRestoreInstanceState(state: Parcelable?): Unit

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`.

See also
`onSaveInstanceState`
`restoreHierarchyState`

onSaveInstanceState

protected fun onSaveInstanceState(): Parcelable

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`.

See also
`onRestoreInstanceState`
`saveHierarchyState`

Extension functions

contains

Artifact: androidx.preference:preference-ktx

View Source

operator fun PreferenceGroup.contains(preference: Preference): Boolean

Returns true if preference is found in this preference group.

forEach

Artifact: androidx.preference:preference-ktx

View Source

inline fun PreferenceGroup.forEach(action: (preference: Preference) -> Unit): Unit

Performs the given action on each preference in this preference group.

forEachIndexed

Artifact: androidx.preference:preference-ktx

View Source

inline fun PreferenceGroup.forEachIndexed(
    action: (index: Int, preference: Preference) -> Unit
): Unit

Performs the given action on each preference in this preference group, providing its sequential index.

get

Artifact: androidx.preference:preference-ktx

View Source

operator fun PreferenceGroup.get(index: Int): Preference

Returns the preference at index.

Throws
`kotlin.IndexOutOfBoundsException`	if index is less than 0 or greater than or equal to the count.

get

Artifact: androidx.preference:preference-ktx

View Source

inline operator fun <T : Preference> PreferenceGroup.get(key: CharSequence): T?

Returns the preference with key, or null if no preference with key is found.

isEmpty

Artifact: androidx.preference:preference-ktx

View Source

inline fun PreferenceGroup.isEmpty(): Boolean

Returns true if this preference group contains no preferences.

isNotEmpty

Artifact: androidx.preference:preference-ktx

View Source

inline fun PreferenceGroup.isNotEmpty(): Boolean

Returns true if this preference group contains one or more preferences.

iterator

Artifact: androidx.preference:preference-ktx

View Source

operator fun PreferenceGroup.iterator(): Iterator<Preference>

Returns a MutableIterator over the preferences in this preference group.

minusAssign

Artifact: androidx.preference:preference-ktx

View Source

inline operator fun PreferenceGroup.minusAssign(preference: Preference): Unit

Removes preference from this preference group.

plusAssign

Artifact: androidx.preference:preference-ktx

View Source

inline operator fun PreferenceGroup.plusAssign(preference: Preference): Unit

Adds preference to this preference group.

Extension properties

children

Artifact: androidx.preference:preference-ktx

View Source

Added in 1.0.0

val PreferenceGroup.children: Sequence<Preference>

Returns a Sequence over the preferences in this preference group.

size

Artifact: androidx.preference:preference-ktx

View Source

Added in 1.0.0

val PreferenceGroup.size: Int

Returns the number of preferences in this preference group.

PreferenceGroup

Summary

Nested types

Public constructors

Public functions

Protected functions

Extension functions

Extension properties

Inherited Constants

Inherited functions

Public constructors

PreferenceGroup

PreferenceGroup

PreferenceGroup

Public functions

addItemFromInflater

addPreference

findPreference

getInitialExpandedChildrenCount

getPreference

getPreferenceCount

isOrderingAsAdded

notifyDependencyChange

onAttached

onDetached

removeAll

removePreference

removePreferenceRecursively

setInitialExpandedChildrenCount

setOrderingAsAdded

Protected functions

dispatchRestoreInstanceState

dispatchSaveInstanceState

isOnSameScreenAsChildren

onPrepareAddPreference

onRestoreInstanceState

onSaveInstanceState

Extension functions

contains

forEach

forEachIndexed

get

get

isEmpty

isNotEmpty

iterator

minusAssign

plusAssign

Extension properties

children

size