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org.holoeverywhere.preference.Preference Maven / Gradle / Ivy
package org.holoeverywhere.preference;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.holoeverywhere.LayoutInflater;
import org.holoeverywhere.R;
import org.holoeverywhere.app.Application;
import org.holoeverywhere.util.CharSequences;
import org.json.JSONArray;
import org.json.JSONObject;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.AbsSavedState;
import android.view.KeyEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
public class Preference implements Comparable,
OnDependencyChangeListener {
public static class BaseSavedState extends AbsSavedState {
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
@Override
public BaseSavedState createFromParcel(Parcel in) {
return new BaseSavedState(in);
}
@Override
public BaseSavedState[] newArray(int size) {
return new BaseSavedState[size];
}
};
public BaseSavedState(Parcel source) {
super(source);
}
public BaseSavedState(Parcelable superState) {
super(superState);
}
}
interface OnPreferenceChangeInternalListener {
void onPreferenceChange(Preference preference);
void onPreferenceHierarchyChange(Preference preference);
}
public interface OnPreferenceChangeListener {
boolean onPreferenceChange(Preference preference, Object newValue);
}
public interface OnPreferenceClickListener {
boolean onPreferenceClick(Preference preference);
}
public static final int DEFAULT_ORDER = Integer.MAX_VALUE;
private boolean mBaseMethodCalled;
private Context mContext;
private Object mDefaultValue;
private int mDependencyId;
private String mDependencyKey;
private boolean mDependencyMet = true;
private List mDependents;
private boolean mEnabled = true;
private Bundle mExtras;
private String mFragment;
private boolean mHasSpecifiedLayout = false;
private Drawable mIcon;
private int mIconResId;
private long mId;
private Intent mIntent;
private String mKey;
private int mLayoutResId = R.layout.preference_holo;
private OnPreferenceChangeInternalListener mListener;
private OnPreferenceChangeListener mOnChangeListener;
private OnPreferenceClickListener mOnClickListener;
private int mOrder = Preference.DEFAULT_ORDER;
private boolean mPersistent = true;
private PreferenceManager mPreferenceManager;
private boolean mRequiresKey;
private int mResId;
private boolean mSelectable = true;
private boolean mShouldDisableView = true;
private CharSequence mSummary;
private CharSequence mTitle;
private int mTitleRes;
private int mWidgetLayoutResId;
public Preference(Context context) {
this(context, null);
}
public Preference(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.preferenceStyle);
}
public Preference(Context context, AttributeSet attrs, int defStyle) {
mContext = context;
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.Preference, defStyle, 0);
mKey = a.getString(R.styleable.Preference_key);
setResId(a.getResourceId(R.styleable.Preference_id, 0));
mIconResId = a.getResourceId(R.styleable.Preference_icon, 0);
mTitleRes = a.getResourceId(R.styleable.Preference_title, 0);
mTitle = a.getString(R.styleable.Preference_title);
mSummary = a.getString(R.styleable.Preference_summary);
mOrder = a.getInt(R.styleable.Preference_order, mOrder);
mFragment = a.getString(R.styleable.Preference_fragment);
mLayoutResId = a.getResourceId(R.styleable.Preference_layout,
mLayoutResId);
mWidgetLayoutResId = a.getResourceId(
R.styleable.Preference_widgetLayout, mWidgetLayoutResId);
mEnabled = a.getBoolean(R.styleable.Preference_enabled, true);
mSelectable = a.getBoolean(R.styleable.Preference_selectable, true);
mPersistent = a.getBoolean(R.styleable.Preference_persistent,
mPersistent);
mDependencyKey = a.getString(R.styleable.Preference_dependency);
mDependencyId = a.getResourceId(R.styleable.Preference_depends, 0);
mDefaultValue = onGetDefaultValue(a,
R.styleable.Preference_defaultValue);
mShouldDisableView = a.getBoolean(
R.styleable.Preference_shouldDisableView, mShouldDisableView);
a.recycle();
if (!getClass().getName().startsWith(
Application.config().getPreferencePackage())) {
mHasSpecifiedLayout = true;
}
}
protected boolean callChangeListener(Object newValue) {
return mOnChangeListener == null ? true : mOnChangeListener
.onPreferenceChange(this, newValue);
}
@Override
public int compareTo(Preference another) {
if (mOrder != Preference.DEFAULT_ORDER
|| mOrder == Preference.DEFAULT_ORDER
&& another.mOrder != Preference.DEFAULT_ORDER) {
return mOrder - another.mOrder;
} else if (mTitle == null) {
return 1;
} else if (another.mTitle == null) {
return -1;
} else {
return CharSequences.compareToIgnoreCase(mTitle, another.mTitle);
}
}
void dispatchRestoreInstanceState(Bundle container) {
if (hasKey()) {
Parcelable state = container.getParcelable(mKey);
if (state != null) {
mBaseMethodCalled = false;
onRestoreInstanceState(state);
if (!mBaseMethodCalled) {
throw new IllegalStateException(
"Derived class did not call super.onRestoreInstanceState()");
}
}
}
}
void dispatchSaveInstanceState(Bundle container) {
if (hasKey()) {
mBaseMethodCalled = false;
Parcelable state = onSaveInstanceState();
if (!mBaseMethodCalled) {
throw new IllegalStateException(
"Derived class did not call super.onSaveInstanceState()");
}
if (state != null) {
container.putParcelable(mKey, state);
}
}
}
private void dispatchSetInitialValue() {
final boolean shouldPersist = shouldPersist();
if (!shouldPersist || !getSharedPreferences().contains(mKey)) {
if (mDefaultValue != null) {
onSetInitialValue(false, mDefaultValue);
}
} else {
onSetInitialValue(true, null);
}
}
protected Preference findPreferenceInHierarchy(int id) {
if (id <= 0 || mPreferenceManager == null) {
return null;
}
return mPreferenceManager.findPreference(id);
}
protected Preference findPreferenceInHierarchy(String key) {
if (TextUtils.isEmpty(key) || mPreferenceManager == null) {
return null;
}
return mPreferenceManager.findPreference(key);
}
public Context getContext() {
return mContext;
}
public String getDependency() {
return mDependencyKey;
}
public int getDependencyId() {
return mDependencyId;
}
public SharedPreferences.Editor getEditor() {
if (mPreferenceManager == null) {
return null;
}
return mPreferenceManager.getEditor();
}
public Bundle getExtras() {
if (mExtras == null) {
mExtras = new Bundle();
}
return mExtras;
}
StringBuilder getFilterableStringBuilder() {
StringBuilder sb = new StringBuilder();
CharSequence title = getTitle();
if (!TextUtils.isEmpty(title)) {
sb.append(title).append(' ');
}
CharSequence summary = getSummary();
if (!TextUtils.isEmpty(summary)) {
sb.append(summary).append(' ');
}
if (sb.length() > 0) {
sb.setLength(sb.length() - 1);
}
return sb;
}
public String getFragment() {
return mFragment;
}
public Drawable getIcon() {
return mIcon;
}
long getId() {
return mId;
}
public Intent getIntent() {
return mIntent;
}
public String getKey() {
return mKey;
}
public int getLayoutResource() {
return mLayoutResId;
}
public OnPreferenceChangeListener getOnPreferenceChangeListener() {
return mOnChangeListener;
}
public OnPreferenceClickListener getOnPreferenceClickListener() {
return mOnClickListener;
}
public int getOrder() {
return mOrder;
}
protected boolean getPersistedBoolean(boolean defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getBoolean(mKey,
defaultReturnValue);
}
protected float getPersistedFloat(float defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getFloat(mKey,
defaultReturnValue);
}
protected Set getPersistedFloatSet(Set defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getFloatSet(mKey,
defaultReturnValue);
}
protected int getPersistedInt(int defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getInt(mKey,
defaultReturnValue);
}
protected Set getPersistedIntSet(Set defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getIntSet(mKey,
defaultReturnValue);
}
protected JSONArray getPersistedJSONArray(JSONArray defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getJSONArray(mKey,
defaultReturnValue);
}
protected JSONObject getPersistedJSONObject(JSONObject defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getJSONObject(mKey,
defaultReturnValue);
}
protected long getPersistedLong(long defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getLong(mKey,
defaultReturnValue);
}
protected Set getPersistedLongSet(Set defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getLongSet(mKey,
defaultReturnValue);
}
protected String getPersistedString(String defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getString(mKey,
defaultReturnValue);
}
protected Set getPersistedStringSet(Set defaultReturnValue) {
if (!shouldPersist()) {
return defaultReturnValue;
}
return mPreferenceManager.getSharedPreferences().getStringSet(mKey,
defaultReturnValue);
}
public PreferenceManager getPreferenceManager() {
return mPreferenceManager;
}
public int getResId() {
return mResId;
}
public SharedPreferences getSharedPreferences() {
if (mPreferenceManager == null) {
return null;
}
return mPreferenceManager.getSharedPreferences();
}
public boolean getShouldDisableView() {
return mShouldDisableView;
}
public CharSequence getSummary() {
return mSummary;
}
public CharSequence getTitle() {
return mTitle;
}
public int getTitleRes() {
return mTitleRes;
}
public View getView(View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = onCreateView(parent);
}
onBindView(convertView);
return convertView;
}
public int getWidgetLayoutResource() {
return mWidgetLayoutResId;
}
public boolean hasKey() {
return !TextUtils.isEmpty(mKey);
}
boolean hasSpecifiedLayout() {
return mHasSpecifiedLayout;
}
public boolean isEnabled() {
return mEnabled && mDependencyMet;
}
public boolean isPersistent() {
return mPersistent;
}
public boolean isSelectable() {
return mSelectable;
}
protected void notifyChanged() {
if (mListener != null) {
mListener.onPreferenceChange(this);
}
}
public void notifyDependencyChange(boolean disableDependents) {
final List dependents = mDependents;
if (dependents == null) {
return;
}
final int dependentsCount = dependents.size();
for (int i = 0; i < dependentsCount; i++) {
dependents.get(i).onDependencyChanged(this, disableDependents);
}
}
protected void notifyHierarchyChanged() {
if (mListener != null) {
mListener.onPreferenceHierarchyChange(this);
}
}
protected void onAttachedToActivity() {
registerDependency();
}
protected void onAttachedToHierarchy(PreferenceManager preferenceManager) {
mPreferenceManager = preferenceManager;
mId = preferenceManager.getNextId();
dispatchSetInitialValue();
}
protected void onBindView(View view) {
final TextView titleView = (TextView) view.findViewById(R.id.title);
if (titleView != null) {
final CharSequence title = getTitle();
if (!TextUtils.isEmpty(title)) {
titleView.setText(title);
titleView.setVisibility(View.VISIBLE);
} else {
titleView.setVisibility(View.GONE);
}
}
final TextView summaryView = (TextView) view.findViewById(R.id.summary);
if (summaryView != null) {
final CharSequence summary = getSummary();
if (!TextUtils.isEmpty(summary)) {
summaryView.setText(summary);
summaryView.setVisibility(View.VISIBLE);
} else {
summaryView.setVisibility(View.GONE);
}
}
ImageView imageView = (ImageView) view.findViewById(R.id.icon);
if (imageView != null) {
if (mIconResId != 0 || mIcon != null) {
if (mIcon == null) {
mIcon = getContext().getResources().getDrawable(mIconResId);
}
if (mIcon != null) {
imageView.setImageDrawable(mIcon);
}
}
imageView.setVisibility(mIcon != null ? View.VISIBLE : View.GONE);
}
if (mShouldDisableView) {
setEnabledStateOnViews(view, isEnabled());
}
}
protected void onClick() {
}
protected View onCreateView(ViewGroup parent) {
final LayoutInflater layoutInflater = LayoutInflater.from(mContext);
final View layout = layoutInflater.inflate(mLayoutResId, parent, false);
final ViewGroup widgetFrame = (ViewGroup) layout
.findViewById(R.id.widget_frame);
if (widgetFrame != null) {
if (mWidgetLayoutResId != 0) {
layoutInflater.inflate(mWidgetLayoutResId, widgetFrame);
} else {
widgetFrame.setVisibility(View.GONE);
}
}
return layout;
}
@Override
public void onDependencyChanged(Preference dependency,
boolean disableDependent) {
if (mDependencyMet == disableDependent) {
mDependencyMet = !disableDependent;
notifyDependencyChange(shouldDisableDependents());
notifyChanged();
}
}
protected Object onGetDefaultValue(TypedArray a, int index) {
return null;
}
public boolean onKey(View v, int keyCode, KeyEvent event) {
return false;
}
protected void onPrepareForRemoval() {
unregisterDependency();
}
protected void onRestoreInstanceState(Parcelable state) {
mBaseMethodCalled = true;
if (state != AbsSavedState.EMPTY_STATE && state != null) {
throw new IllegalArgumentException(
"Wrong state class -- expecting Preference State");
}
}
protected Parcelable onSaveInstanceState() {
mBaseMethodCalled = true;
return AbsSavedState.EMPTY_STATE;
}
protected void onSetInitialValue(boolean restorePersistedValue,
Object defaultValue) {
}
public Bundle peekExtras() {
return mExtras;
}
void performClick(PreferenceScreen preferenceScreen) {
if (!isEnabled()) {
return;
}
onClick();
if (mOnClickListener != null
&& mOnClickListener.onPreferenceClick(this)) {
return;
}
PreferenceManager preferenceManager = getPreferenceManager();
if (preferenceManager != null) {
PreferenceManager.OnPreferenceTreeClickListener listener = preferenceManager
.getOnPreferenceTreeClickListener();
if (preferenceScreen != null && listener != null
&& listener.onPreferenceTreeClick(preferenceScreen, this)) {
return;
}
}
if (mIntent != null) {
Context context = getContext();
context.startActivity(mIntent);
}
}
protected boolean persistBoolean(boolean value) {
if (shouldPersist()) {
if (value == getPersistedBoolean(!value)) {
// It's already there, so the same as persisting
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putBoolean(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistFloat(float value) {
if (shouldPersist()) {
if (value == getPersistedFloat(Float.NaN)) {
// It's already there, so the same as persisting
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putFloat(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistFloatSet(Set values) {
if (shouldPersist()) {
if (values.equals(getPersistedFloatSet(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putFloatSet(mKey, values);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistInt(int value) {
if (shouldPersist()) {
if (value == getPersistedInt(~value)) {
// It's already there, so the same as persisting
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putInt(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistIntSet(Set values) {
if (shouldPersist()) {
if (values.equals(getPersistedIntSet(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putIntSet(mKey, values);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistJSONArray(JSONArray value) {
if (shouldPersist()) {
if (value.equals(getPersistedJSONArray(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putJSONArray(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistJSONObject(JSONObject value) {
if (shouldPersist()) {
if (value.equals(getPersistedJSONObject(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putJSONObject(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistLong(long value) {
if (shouldPersist()) {
if (value == getPersistedLong(~value)) {
// It's already there, so the same as persisting
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putLong(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistLongSet(Set values) {
if (shouldPersist()) {
if (values.equals(getPersistedLongSet(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putLongSet(mKey, values);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistString(String value) {
if (shouldPersist()) {
// Shouldn't store null
if (value == getPersistedString(null)) {
// It's already there, so the same as persisting
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putString(mKey, value);
tryCommit(editor);
return true;
}
return false;
}
protected boolean persistStringSet(Set values) {
if (shouldPersist()) {
if (values.equals(getPersistedStringSet(null))) {
return true;
}
SharedPreferences.Editor editor = mPreferenceManager.getEditor();
editor.putStringSet(mKey, values);
tryCommit(editor);
return true;
}
return false;
}
private void registerDependency() {
if (!TextUtils.isEmpty(mDependencyKey)) {
Preference preference = findPreferenceInHierarchy(mDependencyKey);
if (preference != null) {
preference.registerDependent(this);
} else {
throw new IllegalStateException("Dependency \"" + mDependencyKey
+ "\" not found for preference \"" + mKey + "\" (title: \""
+ mTitle + "\"");
}
}
if (mDependencyId > 0) {
Preference preference = findPreferenceInHierarchy(mDependencyId);
if (preference != null) {
preference.registerDependent(this);
} else {
throw new IllegalStateException("Dependency \"" + mDependencyKey
+ "\" not found for preference \"" + mKey + "\" (title: \""
+ mTitle + "\"");
}
}
}
private void registerDependent(Preference dependent) {
if (mDependents == null) {
mDependents = new ArrayList();
}
mDependents.add(dependent);
dependent.onDependencyChanged(this, shouldDisableDependents());
}
void requireKey() {
if (mKey == null) {
throw new IllegalStateException(
"Preference does not have a key assigned.");
}
mRequiresKey = true;
}
public void restoreHierarchyState(Bundle container) {
dispatchRestoreInstanceState(container);
}
public void saveHierarchyState(Bundle container) {
dispatchSaveInstanceState(container);
}
public void setDefaultValue(Object defaultValue) {
mDefaultValue = defaultValue;
}
public void setDependency(int dependencyId) {
unregisterDependency();
mDependencyKey = null;
mDependencyId = dependencyId;
registerDependency();
}
public void setDependency(String dependencyKey) {
unregisterDependency();
mDependencyKey = dependencyKey;
mDependencyId = 0;
registerDependency();
}
public void setEnabled(boolean enabled) {
if (mEnabled != enabled) {
mEnabled = enabled;
notifyDependencyChange(shouldDisableDependents());
notifyChanged();
}
}
private void setEnabledStateOnViews(View v, boolean enabled) {
v.setEnabled(enabled);
if (v instanceof ViewGroup) {
final ViewGroup vg = (ViewGroup) v;
for (int i = vg.getChildCount() - 1; i >= 0; i--) {
setEnabledStateOnViews(vg.getChildAt(i), enabled);
}
}
}
public void setFragment(String fragment) {
mFragment = fragment;
}
public void setIcon(Drawable icon) {
if (icon == null && mIcon != null || icon != null && mIcon != icon) {
mIcon = icon;
notifyChanged();
}
}
public void setIcon(int iconResId) {
mIconResId = iconResId;
setIcon(mContext.getResources().getDrawable(iconResId));
}
public void setIntent(Intent intent) {
mIntent = intent;
}
public void setKey(String key) {
mKey = key;
if (mRequiresKey && !hasKey()) {
requireKey();
}
}
public void setLayoutResource(int layoutResId) {
if (layoutResId != mLayoutResId) {
// Layout changed
mHasSpecifiedLayout = true;
}
mLayoutResId = layoutResId;
}
final void setOnPreferenceChangeInternalListener(
OnPreferenceChangeInternalListener listener) {
mListener = listener;
}
public void setOnPreferenceChangeListener(
OnPreferenceChangeListener onPreferenceChangeListener) {
mOnChangeListener = onPreferenceChangeListener;
}
public void setOnPreferenceClickListener(
OnPreferenceClickListener onPreferenceClickListener) {
mOnClickListener = onPreferenceClickListener;
}
public void setOrder(int order) {
if (order != mOrder) {
mOrder = order;
// Reorder the list
notifyHierarchyChanged();
}
}
public void setPersistent(boolean persistent) {
mPersistent = persistent;
}
public void setResId(int resId) {
mResId = resId;
if (TextUtils.isEmpty(mKey) && resId > 0) {
mKey = "preference_0x" + Integer.toHexString(mResId);
}
}
public void setSelectable(boolean selectable) {
if (mSelectable != selectable) {
mSelectable = selectable;
notifyChanged();
}
}
public void setShouldDisableView(boolean shouldDisableView) {
mShouldDisableView = shouldDisableView;
notifyChanged();
}
public void setSummary(CharSequence summary) {
if (summary == null && mSummary != null || summary != null
&& !summary.equals(mSummary)) {
mSummary = summary;
notifyChanged();
}
}
public void setSummary(int summaryResId) {
setSummary(mContext.getString(summaryResId));
}
public void setTitle(CharSequence title) {
if (title == null && mTitle != null || title != null
&& !title.equals(mTitle)) {
mTitleRes = 0;
mTitle = title;
notifyChanged();
}
}
public void setTitle(int titleResId) {
setTitle(mContext.getString(titleResId));
mTitleRes = titleResId;
}
public void setWidgetLayoutResource(int widgetLayoutResId) {
if (widgetLayoutResId != mWidgetLayoutResId) {
mHasSpecifiedLayout = true;
}
mWidgetLayoutResId = widgetLayoutResId;
}
public boolean shouldCommit() {
if (mPreferenceManager == null) {
return false;
}
return mPreferenceManager.shouldCommit();
}
public boolean shouldDisableDependents() {
return !isEnabled();
}
protected boolean shouldPersist() {
return mPreferenceManager != null && isPersistent() && hasKey();
}
@Override
public String toString() {
return getFilterableStringBuilder().toString();
}
private void tryCommit(SharedPreferences.Editor editor) {
if (mPreferenceManager.shouldCommit()) {
try {
editor.apply();
} catch (AbstractMethodError unused) {
editor.commit();
}
}
}
private void unregisterDependency() {
if (mDependencyKey != null) {
final Preference oldDependency = findPreferenceInHierarchy(mDependencyKey);
if (oldDependency != null) {
oldDependency.unregisterDependent(this);
}
}
if (mDependencyId > 0) {
final Preference oldDependency = findPreferenceInHierarchy(mDependencyId);
if (oldDependency != null) {
oldDependency.unregisterDependent(this);
}
}
}
private void unregisterDependent(Preference dependent) {
if (mDependents != null) {
mDependents.remove(dependent);
}
}
}
