MultiSelectListPreference

Kotlin |Java

open class MultiSelectListPreference : DialogPreference

kotlin.Any
↳	androidx.preference.Preference
	↳	androidx.preference.DialogPreference
		↳	androidx.preference.MultiSelectListPreference

A Preference that displays a list of entries as a dialog.

This preference saves a set of strings. This set will contain one or more mValues from the setEntryValues(CharSequence[]) array.

Summary

Inherited constants

From class Preference

Int

DEFAULT_ORDER

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

Public constructors
`<init>(context: Context!, attrs: AttributeSet!, defStyleAttr: Int, defStyleRes: Int)`
`<init>(context: Context!, attrs: AttributeSet!, defStyleAttr: Int)`
`<init>(context: Context!, attrs: AttributeSet!)`
`<init>(context: Context!)`

Public methods
open Int	`findIndexOfValue(value: String!)` Returns the index of the given value (in the entry mValues array).
open Array<CharSequence!>!	`getEntries()` The list of entries to be shown in the list in subsequent dialogs.
open Array<CharSequence!>!	`getEntryValues()` Returns the array of mValues to be saved for the preference.
open MutableSet<String!>!	`getValues()` Retrieves the current values of the key.
open Unit	`setEntries(entries: Array<CharSequence!>!)` Sets the human-readable entries to be shown in the list.
open Unit	`setEntries(@ArrayRes entriesResId: Int)`
open Unit	`setEntryValues(entryValues: Array<CharSequence!>!)` The array to find the value to save for a preference when an entry from entries is selected.
open Unit	`setEntryValues(@ArrayRes entryValuesResId: Int)`
open Unit	`setValues(values: MutableSet<String!>!)` Sets the values for the key.

Protected methods
open BooleanArray!	`getSelectedItems()`
open Any!	`onGetDefaultValue(a: TypedArray!, index: Int)`
open Unit	`onRestoreInstanceState(state: Parcelable!)`
open Parcelable!	`onSaveInstanceState()`
open Unit	`onSetInitialValue(defaultValue: Any?)`

Inherited functions

From class Preference

`Boolean`	`callChangeListener(newValue: Any!)` Call this method after the user changes the preference, but before the internal state is set. This allows the client to ignore the user value.
`Int`	`compareTo(@NonNull other: Preference)` Compares preference objects based on order (if set), otherwise alphabetically on the titles.
`T?`	`findPreferenceInHierarchy(@NonNull key: String)` Finds a preference in the entire hierarchy (above or below this preference) with the given key. Returns `null` if no preference could be found with the given key. This only works after this preference has been attached to a hierarchy.
`Context!`	`getContext()` Returns the `Context` of this preference. Each preference in a preference hierarchy can be from different Context (for example, if multiple activities provide preferences into a single `PreferenceFragmentCompat`). This Context will be used to save the preference values.
`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. You can use this to get and set individual extra key/value pairs.
`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.
`MutableSet<String!>!`	`getPersistedStringSet(defaultReturnValue: MutableSet<String!>!)` Attempts to get a persisted set of Strings if this preference is persistent.
`PreferenceDataStore?`	`getPreferenceDataStore()` Returns `PreferenceDataStore` used by this preference. Returns `null` if `SharedPreferences` is used instead. By default preferences always use `SharedPreferences`. To make this preference to use the `PreferenceDataStore` you need to assign your implementation to the preference itself via `setPreferenceDataStore(PreferenceDataStore)` or to its `PreferenceManager` via `PreferenceManager#setPreferenceDataStore(PreferenceDataStore)`.
`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). Usually, it's easier to use one of the helper read methods: `getPersistedBoolean(boolean)`, `getPersistedFloat(float)`, `getPersistedInt(int)`, `getPersistedLong(long)`, `getPersistedString(String)`.
`Boolean`	`getShouldDisableView()` Checks whether this preference should disable its view when it's action is disabled.
`CharSequence!`	`getSummary()` Returns the summary of this preference. If a `SummaryProvider` has been set for this preference, it will be used to provide the summary returned by this method.
`Preference.SummaryProvider<Preference!>?`	`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. If it is, it stores its value(s) into the persistent `SharedPreferences` storage by default or into `PreferenceDataStore` if assigned.
`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. For a preference to be shown in the hierarchy, it and all of its ancestors must be visible and attached to the root `PreferenceScreen`.
`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. If this preference is visible, but one or more of its ancestors are not visible, then this preference will not be shown until its ancestors are all visible.
`Unit`	`notifyChanged()` Should be called when the data of this `Preference` has changed.
`Unit`	`notifyDependencyChange(disableDependents: Boolean)` Notifies any listening dependents of a change that affects the dependency.
`Unit`	`notifyHierarchyChanged()` Should be called when a preference has been added/removed from this group, or the ordering should be re-evaluated.
`Unit`	`onAttached()` 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.
`Unit`	`onAttachedToHierarchy(preferenceManager: PreferenceManager!)` Called when this preference has been attached to a preference hierarchy. Make sure to call the super implementation.
`Unit`	`onBindViewHolder(holder: PreferenceViewHolder!)` Binds the created View to the data for this preference. This is a good place to grab references to custom Views in the layout and set properties on them. Make sure to call through to the superclass's implementation.
`Unit`	`onDependencyChanged(dependency: Preference!, disableDependent: Boolean)` Called when the dependency changes.
`Unit`	`onDetached()` 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.
`Any!`	`onGetDefaultValue(a: TypedArray!, index: Int)` Called when a preference is being inflated and the default value attribute needs to be read. Since different preference types have different value types, the subclass should get and return the default value which will be its value type. For example, if the value type is String, the body of the method would proxy to `TypedArray#getString(int)`.
`Unit`	`onInitializeAccessibilityNodeInfo(info: AccessibilityNodeInfoCompat!)` Initializes an `android.view.accessibility.AccessibilityNodeInfo` with information about the View for this preference.
`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. You should remove any references to this preference that you know about. Make sure to call through to the superclass implementation.
`Unit`	`onRestoreInstanceState(state: Parcelable!)` 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.
`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.
`Unit`	`onSetInitialValue(restorePersistedValue: Boolean, defaultValue: Any!)` Implement this to set the initial value of the preference. If restorePersistedValue is true, you should restore the preference value from the `SharedPreferences`. If restorePersistedValue is false, you should set the preference value to defaultValue that is given (and possibly store to SharedPreferences if `shouldPersist()` is true). In case of using `PreferenceDataStore`, the restorePersistedValue is always `true` but the default value (if provided) is set. This may not always be called. One example is if it should not persist but there is no default value given.
`Unit`	`onSetInitialValue(@Nullable defaultValue: Any?)` Implement this to set the initial value of the preference. If you are persisting values to `SharedPreferences` or a `PreferenceDataStore` you should restore the saved value for the preference. If you are not persisting values, or there is no value saved for the preference, you should set the value of the preference to defaultValue.
`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. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`Boolean`	`persistFloat(value: Float)` Attempts to persist a `Float` if this preference is persistent. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`Boolean`	`persistInt(value: Int)` Attempts to persist an `Integer` if this preference is persistent. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`Boolean`	`persistLong(value: Long)` Attempts to persist a `Long` if this preference is persistent. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`Boolean`	`persistString(value: String!)` Attempts to persist a `String` if this preference is persistent. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`Boolean`	`persistStringSet(values: MutableSet<String!>!)` Attempts to persist a set of Strings if this preference is persistent. The returned value doesn't reflect whether the given value was persisted, since we may not necessarily commit if there will be a batch commit later.
`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. If that preference is not set or is off, this preference will be disabled.
`Unit`	`setEnabled(enabled: Boolean)` Sets whether this preference is enabled. If disabled, it will not handle clicks.
`Unit`	`setFragment(fragment: String!)` Sets the class name of a fragment to be shown when this preference is clicked.
`Unit`	`setIcon(icon: Drawable!)` <