IT. Expert System.

All Implemented Interfaces:

GenericInflater.Parent<Preference>, Comparable<Preference>

Direct Known Subclasses:

PreferenceCategory, PreferenceScreen

public abstract class PreferenceGroup
extends Preference
implements GenericInflater.Parent<Preference>

• Nested Class Summary

  • Nested classes/interfaces inherited from class android.preference.Preference

    Preference.BaseSavedState, Preference.OnPreferenceChangeListener, Preference.OnPreferenceClickListener

• Field Summary

  • Fields inherited from class android.preference.Preference

    DEFAULT_ORDER

• Constructor Summary

  Constructors

  Constructor and Description
  PreferenceGroup(Context context, AttributeSet attrs)
  PreferenceGroup(Context context, AttributeSet attrs, int defStyle)

• Method Summary

  Methods

  Modifier and Type	Method and Description
  void	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.
  protected void	dispatchRestoreInstanceState(Bundle container) Called by Preference.restoreHierarchyState(android.os.Bundle) to retrieve the saved state for this Preference and its children.
  protected void	dispatchSaveInstanceState(Bundle container) Called by Preference.saveHierarchyState(android.os.Bundle) to store the instance for this Preference and its children.
  Preference	findPreference(CharSequence key) Finds a Preference based on its key.
  Preference	getPreference(int index) Returns the Preference at a particular index.
  int	getPreferenceCount() Returns the number of children Preferences.
  protected boolean	isOnSameScreenAsChildren() Whether this preference group should be shown on the same screen as its contained preferences.
  boolean	isOrderingAsAdded() Whether this group is ordering preferences in the order they are added.
  protected void	onAttachedToActivity() Called when the Preference hierarchy has been attached to the PreferenceActivity.
  protected boolean	onPrepareAddPreference(Preference preference) Prepares a Preference to be added to the group.
  protected void	onPrepareForRemoval() Called when this Preference is being removed from the hierarchy.
  void	removeAll() Removes all Preferences from this group.
  boolean	removePreference(Preference preference) Removes a Preference from this group.
  void	setEnabled(boolean enabled) Sets whether this Preference is enabled.
  void	setOrderingAsAdded(boolean orderingAsAdded) Whether to order the Preference children of this group as they are added.

  • Methods inherited from class android.preference.Preference

    callChangeListener, compareTo, findPreferenceInHierarchy, getContext, getDependency, getEditor, getExtras, getFragment, getIcon, getIntent, getKey, getLayoutResource, getOnPreferenceChangeListener, getOnPreferenceClickListener, getOrder, getPersistedBoolean, getPersistedFloat, getPersistedInt, getPersistedLong, getPersistedString, getPersistedStringSet, getPreferenceManager, getSharedPreferences, getShouldDisableView, getSummary, getTitle, getTitleRes, getView, getWidgetLayoutResource, hasKey, isEnabled, isPersistent, isSelectable, notifyChanged, notifyDependencyChange, notifyHierarchyChanged, onAttachedToHierarchy, onBindView, onClick, onCreateView, onDependencyChanged, onGetDefaultValue, onKey, onRestoreInstanceState, onSaveInstanceState, onSetInitialValue, peekExtras, persistBoolean, persistFloat, persistInt, persistLong, persistString, persistStringSet, restoreHierarchyState, saveHierarchyState, setDefaultValue, setDependency, setFragment, setIcon, setIcon, setIntent, setKey, setLayoutResource, setOnPreferenceChangeListener, setOnPreferenceClickListener, setOrder, setPersistent, setSelectable, setShouldDisableView, setSummary, setSummary, setTitle, setTitle, setWidgetLayoutResource, shouldCommit, shouldDisableDependents, shouldPersist, toString

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

• Constructor Detail

  • PreferenceGroup

    public PreferenceGroup(Context context,
                   AttributeSet attrs,
                   int defStyle)

  • PreferenceGroup

    public PreferenceGroup(Context context,
                   AttributeSet attrs)

• Method Detail

  • setOrderingAsAdded

    public void setOrderingAsAdded(boolean orderingAsAdded)

    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 - Whether to order according to the order added.

    See Also:

    Preference.setOrder(int)

  • isOrderingAsAdded

    public boolean isOrderingAsAdded()

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

    Returns:

    Whether this group orders based on the order the children are added.

    See Also:

    setOrderingAsAdded(boolean)

  • addItemFromInflater

    public void addItemFromInflater(Preference preference)

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

    Specified by:

    addItemFromInflater in interface GenericInflater.Parent<Preference>

  • getPreferenceCount

    public int getPreferenceCount()

    Returns the number of children Preferences.

    Returns:

    The number of preference children in this group.

  • getPreference

    public Preference getPreference(int index)

    Returns the Preference at a particular index.

    Parameters:

    index - The index of the Preference to retrieve.

    Returns:

    The Preference.

  • addPreference

    public boolean addPreference(Preference preference)

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

    Parameters:

    preference - The preference to add.

    Returns:

    Whether the preference is now in this group.

  • removePreference

    public boolean removePreference(Preference preference)

    Removes a Preference from this group.

    Parameters:

    preference - The preference to remove.

    Returns:

    Whether the preference was found and removed.

  • removeAll

    public void removeAll()

    Removes all Preferences from this group.

  • onPrepareAddPreference

    protected boolean onPrepareAddPreference(Preference preference)

    Prepares a Preference to be added to the group.

    Parameters:

    preference - The preference to add.

    Returns:

    Whether to allow adding the preference (true), or not (false).

  • findPreference

    public Preference findPreference(CharSequence key)

    Finds a Preference based on its key. If two Preference share the same key (not recommended), the first to appear will be returned (to retrieve the other preference with the same key, call this method on the first preference). If this preference has the key, it will not be returned.

    This will recursively search for the preference into children that are also PreferenceGroups.

    Parameters:

    key - The key of the preference to retrieve.

    Returns:

    The Preference with the key, or null.

  • isOnSameScreenAsChildren

    protected boolean isOnSameScreenAsChildren()

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

    Returns:

    True if the contained preferences should be shown on the same screen as this preference.

  • onAttachedToActivity

    protected void onAttachedToActivity()

    Description copied from class: Preference
    Called when the Preference hierarchy has been attached to the PreferenceActivity. This can also be called when this Preference has been attached to a group that was already attached to the PreferenceActivity.

    Overrides:

    onAttachedToActivity in class Preference

  • onPrepareForRemoval

    protected void onPrepareForRemoval()

    Description copied from class: Preference
    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.

    Overrides:

    onPrepareForRemoval in class Preference

  • setEnabled

    public void setEnabled(boolean enabled)

    Description copied from class: Preference
    Sets whether this Preference is enabled. If disabled, it will not handle clicks.

    Overrides:

    setEnabled in class Preference

    Parameters:

    enabled - Set true to enable it.

  • dispatchSaveInstanceState

    protected void dispatchSaveInstanceState(Bundle container)

    Description copied from class: Preference
    Called by Preference.saveHierarchyState(android.os.Bundle) 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 - The Bundle in which to save the instance of this Preference.

    See Also:

    Preference.saveHierarchyState(android.os.Bundle), Preference.onSaveInstanceState()

  • dispatchRestoreInstanceState

    protected void dispatchRestoreInstanceState(Bundle container)

    Description copied from class: Preference
    Called by Preference.restoreHierarchyState(android.os.Bundle) 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 - The Bundle that holds the previously saved state.

    See Also:

    Preference.restoreHierarchyState(android.os.Bundle), Preference.onRestoreInstanceState(android.os.Parcelable)