added in version 24.1.0
belongs to Maven artifact com.android.support:preference-v7:28.0.0-alpha1

PreferenceFragment

public abstract class PreferenceFragment
extends Fragment implements PreferenceManager.OnPreferenceTreeClickListener, PreferenceManager.OnDisplayPreferenceDialogListener, PreferenceManager.OnNavigateToScreenListener, DialogPreference.TargetFragment

java.lang.Object
↳	android.app.Fragment
	↳	android.support.v14.preference.PreferenceFragment

Known Direct Subclasses

BaseLeanbackPreferenceFragment

Known Indirect Subclasses

LeanbackPreferenceFragment

Shows a hierarchy of Preference objects as lists. These preferences will automatically save to SharedPreferences as the user interacts with them. To retrieve an instance of SharedPreferences that the preference hierarchy in this fragment will use, call getDefaultSharedPreferences(android.content.Context) with a context in the same package as this fragment.

Furthermore, the preferences shown will follow the visual style of system preferences. It is easy to create a hierarchy of preferences (that can be shown on multiple screens) via XML. For these reasons, it is recommended to use this fragment (as a superclass) to deal with preferences in applications.

A PreferenceScreen object should be at the top of the preference hierarchy. Furthermore, subsequent PreferenceScreen in the hierarchy denote a screen break--that is the preferences contained within subsequent PreferenceScreen should be shown on another screen. The preference framework handles this by calling onNavigateToScreen(PreferenceScreen).

The preference hierarchy can be formed in multiple ways:

From an XML file specifying the hierarchy

From different Activities that each specify its own preferences in an XML file via Activity meta-data

From an object hierarchy rooted with PreferenceScreen

To inflate from XML, use the addPreferencesFromResource(int). The root element should be a PreferenceScreen. Subsequent elements can point to actual Preference subclasses. As mentioned above, subsequent PreferenceScreen in the hierarchy will result in the screen break.

To specify an object hierarchy rooted with PreferenceScreen, use setPreferenceScreen(PreferenceScreen).

As a convenience, this fragment implements a click listener for any preference in the current hierarchy, see onPreferenceTreeClick(Preference).

Developer Guides

For information about using PreferenceFragment, read the Settings guide.

Sample Code

The following sample code shows a simple preference fragment that is populated from a resource. The resource it loads is:

<PreferenceScreen
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:title="@string/root_title">

    <Preference
        android:key="basic_preference"
        android:title="@string/title_basic_preference"
        android:summary="@string/summary_basic_preference" />

    <Preference
        android:key="stylish_preference"
        android:title="@string/title_stylish_preference"
        android:summary="@string/summary_stylish_preference" />

    <Preference
        android:key="preference_with_icon"
        android:title="Preference with icon"
        android:summary="This preference has an icon"
        android:icon="@android:drawable/ic_menu_camera" />

    <PreferenceCategory
        android:title="@string/inline_preferences">

        <CheckBoxPreference
            android:key="checkbox_preference"
            android:title="@string/title_checkbox_preference"
            android:summary="@string/summary_checkbox_preference" />

        <SwitchPreference
            android:key="switch_preference"
            android:title="Switch preference"
            android:summary="This is a switch" />

        <DropDownPreference
            android:key="dropdown_preference"
            android:title="@string/title_dropdown_preference"
            android:summary="@string/summary_dropdown_preference"
            android:entries="@array/entries_list_preference"
            android:entryValues="@array/entryvalues_list_preference" />

    </PreferenceCategory>

    <PreferenceCategory
        android:title="@string/dialog_based_preferences">

        <EditTextPreference
            android:key="edittext_preference"
            android:title="@string/title_edittext_preference"
            android:summary="@string/summary_edittext_preference"
            android:dialogTitle="@string/dialog_title_edittext_preference" />

        <ListPreference
            android:key="list_preference"
            android:title="@string/title_list_preference"
            android:summary="@string/summary_list_preference"
            android:entries="@array/entries_list_preference"
            android:entryValues="@array/entryvalues_list_preference"
            android:dialogTitle="@string/dialog_title_list_preference" />

        <MultiSelectListPreference
            android:key="multi_select_list_preference"
            android:title="@string/title_multi_list_preference"
            android:summary="@string/summary_multi_list_preference"
            android:entries="@array/entries_list_preference"
            android:entryValues="@array/entryvalues_list_preference"
            android:dialogTitle="@string/dialog_title_multi_list_preference" />

    </PreferenceCategory>

    <PreferenceCategory
        android:title="@string/launch_preferences">

        <!-- This PreferenceScreen tag serves as a screen break (similar to page break
             in word processing). Like for other preference types, we assign a key
             here so it is able to save and restore its instance state. -->
        <PreferenceScreen
            android:key="screen_preference"
            android:title="@string/title_screen_preference"
            android:summary="@string/summary_screen_preference">

            <!-- You can place more preferences here that will be shown on the next screen. -->

            <CheckBoxPreference
                android:key="next_screen_checkbox_preference"
                android:title="@string/title_next_screen_toggle_preference"
                android:summary="@string/summary_next_screen_toggle_preference" />

        </PreferenceScreen>

        <PreferenceScreen
            android:title="@string/title_intent_preference"
            android:summary="@string/summary_intent_preference">

            <intent android:action="android.intent.action.VIEW"
                android:data="http://www.android.com" />

        </PreferenceScreen>

    </PreferenceCategory>

    <PreferenceCategory
        android:title="@string/preference_attributes">

        <CheckBoxPreference
            android:key="parent_checkbox_preference"
            android:title="@string/title_parent_preference"
            android:summary="@string/summary_parent_preference" />

        <!-- The visual style of a child is defined by this styled theme attribute. -->
        <CheckBoxPreference
            android:key="child_checkbox_preference"
            android:dependency="parent_checkbox_preference"
            android:layout="?android:attr/preferenceLayoutChild"
            android:title="@string/title_child_preference"
            android:summary="@string/summary_child_preference" />

    </PreferenceCategory>

</PreferenceScreen>

The fragment implementation itself simply populates the preferences when created. Note that the preferences framework takes care of loading the current values out of the app preferences and writing them when changed:

public static class PrefsFragment extends PreferenceFragment {

    @Override
    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
        // Load the preferences from an XML resource
        setPreferencesFromResource(R.xml.preferences, rootKey);
    }
}

See also:

Preference
PreferenceScreen

Summary

Nested classes
`interface`	`PreferenceFragment.OnPreferenceDisplayDialogCallback`
`interface`	`PreferenceFragment.OnPreferenceStartFragmentCallback` Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a specified fragment.
`interface`	`PreferenceFragment.OnPreferenceStartScreenCallback` Interface that PreferenceFragment's containing activity should implement to be able to process preference items that wish to switch to a new screen of preferences.

XML attributes
`PreferenceFragment_android_divider`
`PreferenceFragment_android_dividerHeight`

Constants
`String`	`ARG_PREFERENCE_ROOT` Fragment argument used to specify the tag of the desired root `PreferenceScreen` object.

Inherited constants

From interface


    android.content.ComponentCallbacks2

Public constructors
`PreferenceFragment()`

Public methods
`void`	`addPreferencesFromResource(int preferencesResId)` Inflates the given XML resource and adds the preference hierarchy to the current preference hierarchy.
`Preference`	`findPreference(CharSequence key)` Finds a `Preference` based on its key.
`final RecyclerView`	`getListView()`
`PreferenceManager`	`getPreferenceManager()` Returns the `PreferenceManager` used by this fragment.
`PreferenceScreen`	`getPreferenceScreen()` Gets the root of the preference hierarchy that this fragment is showing.
`void`	`onActivityCreated(Bundle savedInstanceState)`
`void`	`onCreate(Bundle savedInstanceState)`
`RecyclerView.LayoutManager`	`onCreateLayoutManager()` Called from `onCreateRecyclerView(LayoutInflater, ViewGroup, Bundle)` to create the `RecyclerView.LayoutManager` for the created `RecyclerView`.
`abstract void`	`onCreatePreferences(Bundle savedInstanceState, String rootKey)` Called during `onCreate(Bundle)` to supply the preferences for this fragment.
`RecyclerView`	`onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState)` Creates the `RecyclerView` used to display the preferences.
`View`	`onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)`
`void`	`onDestroyView()`
`void`	`onDisplayPreferenceDialog(Preference preference)` Called when a preference in the tree requests to display a dialog.
`void`	`onNavigateToScreen(PreferenceScreen preferenceScreen)` Called by `onClick()` in order to navigate to a new screen of preferences.
`boolean`	`onPreferenceTreeClick(Preference preference)` Called when a preference in the tree rooted at this `PreferenceScreen` has been clicked.
`void`	`onSaveInstanceState(Bundle outState)`
`void`	`onStart()`
`void`	`onStop()`
`void`	`onViewCreated(View view, Bundle savedInstanceState)`
`void`	`scrollToPreference(Preference preference)`
`void`	`scrollToPreference(String key)`
`void`	`setDivider(Drawable divider)` Sets the drawable that will be drawn between each item in the list.
`void`	`setDividerHeight(int height)` Sets the height of the divider that will be drawn between each item in the list.
`void`	`setPreferenceScreen(PreferenceScreen preferenceScreen)` Sets the root of the preference hierarchy that this fragment is showing.
`void`	`setPreferencesFromResource(int preferencesResId, String key)` Inflates the given XML resource and replaces the current preference hierarchy (if any) with the preference hierarchy rooted at `key`.

Protected methods
`Adapter`	`onCreateAdapter(PreferenceScreen preferenceScreen)` Creates the root adapter.

Inherited methods

From class


  
    android.app.Fragment

`void`	`dump(String arg0, FileDescriptor arg1, PrintWriter arg2, String[] arg3)`
`final boolean`	`equals(Object arg0)`
`final Activity`	`getActivity()`
`boolean`	`getAllowEnterTransitionOverlap()`
`boolean`	`getAllowReturnTransitionOverlap()`
`final Bundle`	`getArguments()`
`final FragmentManager`	`getChildFragmentManager()`
`Context`	`getContext()`
`Transition`	`getEnterTransition()`
`Transition`	`getExitTransition()`
`final FragmentManager`	`getFragmentManager()`
`final Object`	`getHost()`
`final int`	`getId()`
`final LayoutInflater`	`getLayoutInflater()`
`LoaderManager`	`getLoaderManager()`
`final Fragment`	`getParentFragment()`
`Transition`	`getReenterTransition()`
`final Resources`	`getResources()`
`final boolean`	`getRetainInstance()`
`Transition`	`getReturnTransition()`
`Transition`	`getSharedElementEnterTransition()`
`Transition`	`getSharedElementReturnTransition()`
`final String`	`getString(int arg0, Object... arg1)`
`final String`	`getString(int arg0)`
`final String`	`getTag()`
`final Fragment`	`getTargetFragment()`
`final int`	`getTargetRequestCode()`
`final CharSequence`	`getText(int arg0)`
`boolean`	`getUserVisibleHint()`
`View`	`getView()`
`final int`	`hashCode()`
`static Fragment`	`instantiate(Context arg0, String arg1)`
`static Fragment`	`instantiate(Context arg0, String arg1, Bundle arg2)`
`final boolean`	`isAdded()`
`final boolean`	`isDetached()`
`final boolean`	`isHidden()`
`final boolean`	`isInLayout()`
`final boolean`	`isRemoving()`
`final boolean`	`isResumed()`
`final boolean`	`isStateSaved()`
`final boolean`	`isVisible()`
`void`	`onActivityCreated(Bundle arg0)`
`void`	`onActivityResult(int arg0, int arg1, Intent arg2)`
`void`	`onAttach(Activity arg0)`
`void`	`onAttach(Context arg0)`
`void`	`onAttachFragment(Fragment arg0)`
`void`	`onConfigurationChanged(Configuration arg0)`
`boolean`	`onContextItemSelected(MenuItem arg0)`
`void`	`onCreate(Bundle arg0)`
`Animator`	`onCreateAnimator(int arg0, boolean arg1, int arg2)`
`void`	`onCreateContextMenu(ContextMenu arg0, View arg1, ContextMenu.ContextMenuInfo arg2)`
`void`	`onCreateOptionsMenu(Menu arg0, MenuInflater arg1)`
`View`	`onCreateView(LayoutInflater arg0, ViewGroup arg1, Bundle arg2)`
`void`	`onDestroy()`
`void`	`onDestroyOptionsMenu()`
`void`	`onDestroyView()`
`void`	`onDetach()`
`LayoutInflater`	`onGetLayoutInflater(Bundle arg0)`
`void`	`onHiddenChanged(boolean arg0)`
`void`	`onInflate(AttributeSet arg0, Bundle arg1)`
`void`	`onInflate(Activity arg0, AttributeSet arg1, Bundle arg2)`
`void`	`onInflate(Context arg0, AttributeSet arg1, Bundle arg2)`
`void`	`onLowMemory()`
`void`	`onMultiWindowModeChanged(boolean arg0)`
`void`	`onMultiWindowModeChanged(boolean arg0, Configuration arg1)`
`boolean`	`onOptionsItemSelected(MenuItem arg0)`
`void`	`onOptionsMenuClosed(Menu arg0)`
`void`	`onPause()`
`void`	`onPictureInPictureModeChanged(boolean arg0, Configuration arg1)`
`void`	`onPictureInPictureModeChanged(boolean arg0)`
`void`	`onPrepareOptionsMenu(Menu arg0)`
`void`	`onRequestPermissionsResult(int arg0, String[] arg1, int[] arg2)`
`void`	`onResume()`
`void`	`onSaveInstanceState(Bundle arg0)`
`void`	`onStart()`
`void`	`onStop()`
`void`	`onTrimMemory(int arg0)`
`void`	`onViewCreated(View arg0, Bundle arg1)`
`void`	`onViewStateRestored(Bundle arg0)`
`void`	`postponeEnterTransition()`
`void`	`registerForContextMenu(View arg0)`
`final void`	`requestPermissions(String[] arg0, int arg1)`
`void`	`setAllowEnterTransitionOverlap(boolean arg0)`
`void`	`setAllowReturnTransitionOverlap(boolean arg0)`
`void`	`setArguments(Bundle arg0)`
`void`	`setEnterSharedElementCallback(SharedElementCallback arg0)`
`void`	`setEnterTransition(Transition arg0)`
`void`	`setExitSharedElementCallback(SharedElementCallback arg0)`
`void`	`setExitTransition(Transition arg0)`
`void`	`setHasOptionsMenu(boolean arg0)`
`void`	`setInitialSavedState(Fragment.SavedState arg0)`
`void`	`setMenuVisibility(boolean arg0)`
`void`	`setReenterTransition(Transition arg0)`
`void`	`setRetainInstance(boolean arg0)`
`void`	`setReturnTransition(Transition arg0)`
`void`	`setSharedElementEnterTransition(Transition arg0)`
`void`	`setSharedElementReturnTransition(Transition arg0)`
`void`	`setTargetFragment(Fragment arg0, int arg1)`
`void`	`setUserVisibleHint(boolean arg0)`
`boolean`	`shouldShowRequestPermissionRationale(String arg0)`
`void`	`startActivity(Intent arg0)`
`void`	`startActivity(Intent arg0, Bundle arg1)`
`void`	`startActivityForResult(Intent arg0, int arg1)`
`void`	`startActivityForResult(Intent arg0, int arg1, Bundle arg2)`
`void`	`startIntentSenderForResult(IntentSender arg0, int arg1, Intent arg2, int arg3, int arg4, int arg5, Bundle arg6)`
`void`	`startPostponedEnterTransition()`
`String`	`toString()`
`void`	`unregisterForContextMenu(View arg0)`

From class


  
    java.lang.Object

From interface


  
    android.content.ComponentCallbacks2

From interface


  
    android.view.View.OnCreateContextMenuListener

From interface


  
    android.support.v7.preference.PreferenceManager.OnPreferenceTreeClickListener

From interface


  
    android.support.v7.preference.PreferenceManager.OnDisplayPreferenceDialogListener

From interface


  
    android.support.v7.preference.PreferenceManager.OnNavigateToScreenListener

From interface


  
    android.support.v7.preference.DialogPreference.TargetFragment

From interface


  
    android.content.ComponentCallbacks

XML attributes