IT. Expert System.

All Implemented Interfaces:

Comparable<Preference>

Direct Known Subclasses:

CheckBoxPreference, SwitchPreference

public abstract class TwoStatePreference
extends 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
  TwoStatePreference(Context context)
  TwoStatePreference(Context context, AttributeSet attrs)
  TwoStatePreference(Context context, AttributeSet attrs, int defStyle)

• Method Summary

  Methods

  Modifier and Type	Method and Description
  boolean	getDisableDependentsState() Returns whether dependents are disabled when this preference is on (true) or when this preference is off (false).
  CharSequence	getSummaryOff() Returns the summary to be shown when unchecked.
  CharSequence	getSummaryOn() Returns the summary to be shown when checked.
  boolean	isChecked() Returns the checked state.
  protected void	onClick() Processes a click on the preference.
  protected Object	onGetDefaultValue(TypedArray a, int index) Called when a Preference is being inflated and the default value attribute needs to be read.
  protected void	onRestoreInstanceState(Parcelable state) Hook allowing a Preference to re-apply a representation of its internal state that had previously been generated by Preference.onSaveInstanceState().
  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.
  protected void	onSetInitialValue(boolean restoreValue, Object defaultValue) Implement this to set the initial value of the Preference.
  void	setChecked(boolean checked) Sets the checked state and saves it to the SharedPreferences.
  void	setDisableDependentsState(boolean disableDependentsState) Sets whether dependents are disabled when this preference is on (true) or when this preference is off (false).
  void	setSummaryOff(CharSequence summary) Sets the summary to be shown when unchecked.
  void	setSummaryOff(int summaryResId)
  void	setSummaryOn(CharSequence summary) Sets the summary to be shown when checked.
  void	setSummaryOn(int summaryResId)
  boolean	shouldDisableDependents() Checks whether this preference's dependents should currently be disabled.

  • 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, onAttachedToActivity, onAttachedToHierarchy, onBindView, onCreateView, onDependencyChanged, onKey, onPrepareForRemoval, peekExtras, persistBoolean, persistFloat, persistInt, persistLong, persistString, persistStringSet, restoreHierarchyState, saveHierarchyState, setDefaultValue, setDependency, setEnabled, setFragment, setIcon, setIcon, setIntent, setKey, setLayoutResource, setOnPreferenceChangeListener, setOnPreferenceClickListener, setOrder, setPersistent, setSelectable, setShouldDisableView, setSummary, setSummary, setTitle, setTitle, setWidgetLayoutResource, shouldCommit, shouldPersist, toString

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • TwoStatePreference

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

  • TwoStatePreference

    public TwoStatePreference(Context context,
                      AttributeSet attrs)

  • TwoStatePreference

    public TwoStatePreference(Context context)

• Method Detail

  • onClick

    protected void onClick()

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

    Overrides:

    onClick in class Preference

  • setChecked

    public void setChecked(boolean checked)

    Sets the checked state and saves it to the SharedPreferences.

    Parameters:

    checked - The checked state.

  • isChecked

    public boolean isChecked()

    Returns the checked state.

    Returns:

    The checked state.

  • shouldDisableDependents

    public boolean shouldDisableDependents()

    Description copied from class: Preference
    Checks whether this preference's dependents should currently be disabled.

    Overrides:

    shouldDisableDependents in class Preference

    Returns:

    True if the dependents should be disabled, otherwise false.

  • setSummaryOn

    public void setSummaryOn(CharSequence summary)

    Sets the summary to be shown when checked.

    Parameters:

    summary - The summary to be shown when checked.

  • setSummaryOn

    public void setSummaryOn(int summaryResId)

    Parameters:

    summaryResId - The summary as a resource.

    See Also:

    setSummaryOn(CharSequence)

  • getSummaryOn

    public CharSequence getSummaryOn()

    Returns the summary to be shown when checked.

    Returns:

    The summary.

  • setSummaryOff

    public void setSummaryOff(CharSequence summary)

    Sets the summary to be shown when unchecked.

    Parameters:

    summary - The summary to be shown when unchecked.

  • setSummaryOff

    public void setSummaryOff(int summaryResId)

    Parameters:

    summaryResId - The summary as a resource.

    See Also:

    setSummaryOff(CharSequence)

  • getSummaryOff

    public CharSequence getSummaryOff()

    Returns the summary to be shown when unchecked.

    Returns:

    The summary.

  • getDisableDependentsState

    public boolean getDisableDependentsState()

    Returns whether dependents are disabled when this preference is on (true) or when this preference is off (false).

    Returns:

    Whether dependents are disabled when this preference is on (true) or when this preference is off (false).

  • setDisableDependentsState

    public void setDisableDependentsState(boolean disableDependentsState)

    Sets whether dependents are disabled when this preference is on (true) or when this preference is off (false).

    Parameters:

    disableDependentsState - The preference state that should disable dependents.

  • onGetDefaultValue

    protected Object onGetDefaultValue(TypedArray a,
                           int index)

    Description copied from class: Preference
    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).

    Overrides:

    onGetDefaultValue in class Preference

    Parameters:

    a - The set of attributes.

    index - The index of the default value attribute.

    Returns:

    The default value of this preference type.

  • onSetInitialValue

    protected void onSetInitialValue(boolean restoreValue,
                         Object defaultValue)

    Description copied from class: Preference
    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 Preference.shouldPersist() is true).

    This may not always be called. One example is if it should not persist but there is no default value given.

    Overrides:

    onSetInitialValue in class Preference

    Parameters:

    restoreValue - True to restore the persisted value; false to use the given defaultValue.

    defaultValue - The default value for this Preference. Only use this if restorePersistedValue is false.

  • onSaveInstanceState

    protected Parcelable onSaveInstanceState()

    Description copied from class: Preference
    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.

    Overrides:

    onSaveInstanceState in class Preference

    Returns:

    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:

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

  • onRestoreInstanceState

    protected void onRestoreInstanceState(Parcelable state)

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

    Overrides:

    onRestoreInstanceState in class Preference

    Parameters:

    state - The saved state that had previously been returned by Preference.onSaveInstanceState().

    See Also:

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