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Commit a5085443 authored by Jason Hsu's avatar Jason Hsu Committed by Android (Google) Code Review
Browse files

Merge changes I02f03ccb,I0ee46dd9 

* changes:
  Extract UserShortcutType functions from ToggleFeaturePreferenceFragment
  Add data class PreferredShortcut to replace inner class UserShortcutType
parents 84b956ca 48b546ec

src/com/android/settings/accessibility/PreferredShortcut.java

0 → 100644
+96 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2020 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



package com.android.settings.accessibility;



import android.content.ComponentName;

import android.text.TextUtils;



import com.android.settings.accessibility.AccessibilityUtil.UserShortcutType;



import com.google.common.base.Objects;



/**

 * A data class for containing {@link ComponentName#flattenToString()} and

 * {@link UserShortcutType}. Represents the preferred shortcuts of the service or activity.

 */

public class PreferredShortcut {



    private static final char COMPONENT_NAME_SEPARATOR = ':';

    private static final TextUtils.SimpleStringSplitter sStringColonSplitter =

            new TextUtils.SimpleStringSplitter(COMPONENT_NAME_SEPARATOR);



    /**

     * Creates a {@link PreferredShortcut} from a encoded string described in {@link #toString()}.

     *

     * @param preferredShortcutString A string conform to the format described in {@link

     *                                #toString()}

     * @return A {@link PreferredShortcut} with the specified value

     * @throws IllegalArgumentException If preferredShortcutString does not conform to the format

     *                                  described in {@link #toString()}

     */

    public static PreferredShortcut fromString(String preferredShortcutString) {

        sStringColonSplitter.setString(preferredShortcutString);

        if (sStringColonSplitter.hasNext()) {

            final String componentName = sStringColonSplitter.next();

            final int type = Integer.parseInt(sStringColonSplitter.next());

            return new PreferredShortcut(componentName, type);

        }



        throw new IllegalArgumentException(

                "Invalid PreferredShortcut string: " + preferredShortcutString);

    }



    /** The format of {@link ComponentName#flattenToString()} */

    private String mComponentName;

    /** The format of {@link UserShortcutType} */

    private int mType;



    public PreferredShortcut(String componentName, int type) {

        mComponentName = componentName;

        mType = type;

    }



    public String getComponentName() {

        return mComponentName;

    }



    public int getType() {

        return mType;

    }



    @Override

    public String toString() {

        return mComponentName + COMPONENT_NAME_SEPARATOR + mType;

    }



    @Override

    public boolean equals(Object o) {

        if (this == o) {

            return true;

        }

        if (o == null || getClass() != o.getClass()) {

            return false;

        }

        PreferredShortcut that = (PreferredShortcut) o;

        return mType == that.mType && Objects.equal(mComponentName, that.mComponentName);

    }



    @Override

    public int hashCode() {

        return Objects.hashCode(mComponentName, mType);

    }

}

src/com/android/settings/accessibility/PreferredShortcuts.java

0 → 100644
+102 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2020 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



package com.android.settings.accessibility;



import android.content.ComponentName;

import android.content.Context;

import android.content.SharedPreferences;



import com.android.settings.accessibility.AccessibilityUtil.UserShortcutType;



import java.util.HashSet;

import java.util.Set;



/** Static utility methods relating to {@link PreferredShortcut} */

public final class PreferredShortcuts {



    private static final String ACCESSIBILITY_PERF = "accessibility_prefs";

    private static final String USER_SHORTCUT_TYPE = "user_shortcut_type";



    /**

     * Retrieves {@link UserShortcutType} for the given {@code componentName} from

     * SharedPreferences.

     *

     * @param context       {@link Context} to access the {@link SharedPreferences}

     * @param componentName Name of the service or activity, should be the format of {@link

     *                      ComponentName#flattenToString()}.

     * @param defaultType   See {@link UserShortcutType}

     * @return {@link UserShortcutType}

     */

    public static int retrieveUserShortcutType(Context context, String componentName,

            int defaultType) {

        if (componentName == null) {

            return defaultType;

        }



        // Create a mutable set to modify

        final Set<String> info = new HashSet<>(getFromSharedPreferences(context));

        info.removeIf(str -> !str.contains(componentName));



        if (info.isEmpty()) {

            return defaultType;

        }



        final String str = info.stream().findFirst().get();

        final PreferredShortcut shortcut = PreferredShortcut.fromString(str);

        return shortcut.getType();

    }



    /**

     * Saves a {@link PreferredShortcut} which containing {@link ComponentName#flattenToString()}

     * and {@link UserShortcutType} in SharedPreferences.

     *

     * @param context  {@link Context} to access the {@link SharedPreferences}

     * @param shortcut Contains {@link ComponentName#flattenToString()} and {@link UserShortcutType}

     */

    public static void saveUserShortcutType(Context context, PreferredShortcut shortcut) {

        final String componentName = shortcut.getComponentName();

        if (componentName == null) {

            return;

        }



        // Create a mutable set to modify

        final Set<String> info = new HashSet<>(getFromSharedPreferences(context));

        info.removeIf(str -> str.contains(componentName));

        info.add(shortcut.toString());

        saveToSharedPreferences(context, info);

    }



    /**

     * Returns a immutable set of {@link PreferredShortcut#toString()} list from

     * SharedPreferences.

     */

    private static Set<String> getFromSharedPreferences(Context context) {

        return getSharedPreferences(context).getStringSet(USER_SHORTCUT_TYPE, Set.of());

    }



    /** Sets a set of {@link PreferredShortcut#toString()} list into SharedPreferences. */

    private static void saveToSharedPreferences(Context context, Set<String> data) {

        SharedPreferences.Editor editor = getSharedPreferences(context).edit();

        editor.putStringSet(USER_SHORTCUT_TYPE, data).apply();

    }



    private static SharedPreferences getSharedPreferences(Context context) {

        return context.getSharedPreferences(ACCESSIBILITY_PERF, Context.MODE_PRIVATE);

    }



    private PreferredShortcuts() {}

}

src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragment.java

+7 −3
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
package com.android.settings.accessibility;



import static com.android.settings.accessibility.AccessibilityStatsLogUtils.logAccessibilityServiceEnabled;

import static com.android.settings.accessibility.PreferredShortcuts.retrieveUserShortcutType;



import android.accessibilityservice.AccessibilityServiceInfo;

import android.app.Activity;
@@ -292,7 +293,8 @@ public class ToggleAccessibilityServicePreferenceFragment extends 


    @Override

    public void onToggleClicked(ShortcutPreference preference) {

        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        if (preference.isChecked()) {

            if (!mToggleServiceDividerSwitchPreference.isChecked()) {

                preference.setChecked(false);
@@ -313,7 +315,8 @@ public class ToggleAccessibilityServicePreferenceFragment extends 
    public void onSettingsClicked(ShortcutPreference preference) {

        // Do not restore shortcut in shortcut chooser dialog when shortcutPreference is turned off.

        mUserShortcutTypesCache = mShortcutPreference.isChecked()

                ? getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE)

                ? retrieveUserShortcutType(getPrefContext(), mComponentName.flattenToString(),

                UserShortcutType.SOFTWARE)

                : UserShortcutType.EMPTY;



        final boolean isServiceOnOrShortcutAdded = mShortcutPreference.isChecked()
@@ -415,7 +418,8 @@ public class ToggleAccessibilityServicePreferenceFragment extends 
    private void onAllowButtonFromShortcutToggleClicked() {

        mShortcutPreference.setChecked(true);



        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        AccessibilityUtil.optInAllValuesToSettings(getPrefContext(), shortcutTypes, mComponentName);



        mIsDialogShown.set(false);

src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java

+21 −100
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ package com.android.settings.accessibility; 


import static com.android.settings.accessibility.AccessibilityUtil.getScreenHeightPixels;

import static com.android.settings.accessibility.AccessibilityUtil.getScreenWidthPixels;

import static com.android.settings.accessibility.PreferredShortcuts.retrieveUserShortcutType;

import static com.android.settings.accessibility.PreferredShortcuts.saveUserShortcutType;



import android.app.Dialog;

import android.app.settings.SettingsEnums;
@@ -44,6 +46,7 @@ import android.view.accessibility.AccessibilityManager.TouchExplorationStateChan 
import android.widget.CheckBox;

import android.widget.ImageView;



import androidx.annotation.VisibleForTesting;

import androidx.preference.Preference;

import androidx.preference.PreferenceCategory;

import androidx.preference.PreferenceScreen;
@@ -57,17 +60,11 @@ import com.android.settings.widget.SwitchBar; 
import com.android.settingslib.accessibility.AccessibilityUtils;

import com.android.settingslib.widget.FooterPreference;



import com.google.common.annotations.VisibleForTesting;



import java.lang.annotation.Retention;

import java.lang.annotation.RetentionPolicy;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Locale;

import java.util.Set;

import java.util.StringJoiner;

import java.util.stream.Collectors;



/**

 * Base class for accessibility fragments with toggle, shortcut, some helper functions
@@ -481,51 +478,6 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
        }

    }



    static final class AccessibilityUserShortcutType {

        private static final char COMPONENT_NAME_SEPARATOR = ':';

        private static final TextUtils.SimpleStringSplitter sStringColonSplitter =

                new TextUtils.SimpleStringSplitter(COMPONENT_NAME_SEPARATOR);



        private String mComponentName;

        private int mType;



        AccessibilityUserShortcutType(String componentName, int type) {

            this.mComponentName = componentName;

            this.mType = type;

        }



        AccessibilityUserShortcutType(String flattenedString) {

            sStringColonSplitter.setString(flattenedString);

            if (sStringColonSplitter.hasNext()) {

                this.mComponentName = sStringColonSplitter.next();

                this.mType = Integer.parseInt(sStringColonSplitter.next());

            }

        }



        String getComponentName() {

            return mComponentName;

        }



        void setComponentName(String componentName) {

            this.mComponentName = componentName;

        }



        int getType() {

            return mType;

        }



        void setType(int type) {

            this.mType = type;

        }



        String flattenToString() {

            final StringJoiner joiner = new StringJoiner(String.valueOf(COMPONENT_NAME_SEPARATOR));

            joiner.add(mComponentName);

            joiner.add(String.valueOf(mType));

            return joiner.toString();

        }

    }



    private void setDialogTextAreaClickListener(View dialogView, CheckBox checkBox) {

        final View dialogTextArea = dialogView.findViewById(R.id.container);

        dialogTextArea.setOnClickListener(v -> {
@@ -571,33 +523,14 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
        if (saveChanges) {

            final boolean isChanged = (mUserShortcutTypesCache != UserShortcutType.EMPTY);

            if (isChanged) {

                setUserShortcutType(getPrefContext(), mUserShortcutTypesCache);

                final PreferredShortcut shortcut = new PreferredShortcut(

                        mComponentName.flattenToString(), mUserShortcutTypesCache);

                saveUserShortcutType(getPrefContext(), shortcut);

            }

            mUserShortcutTypes = mUserShortcutTypesCache;

        }

    }



    private void setUserShortcutType(Context context, int type) {

        if (mComponentName == null) {

            return;

        }



        Set<String> info = SharedPreferenceUtils.getUserShortcutTypes(context);

        final String componentName = mComponentName.flattenToString();

        if (info.isEmpty()) {

            info = new HashSet<>();

        } else {

            final Set<String> filtered = info.stream()

                    .filter(str -> str.contains(componentName))

                    .collect(Collectors.toSet());

            info.removeAll(filtered);

        }

        final AccessibilityUserShortcutType shortcut = new AccessibilityUserShortcutType(

                componentName, type);

        info.add(shortcut.flattenToString());

        SharedPreferenceUtils.setUserShortcutType(context, info);

    }



    protected CharSequence getShortcutTypeSummary(Context context) {

        if (!mShortcutPreference.isSettingsEditable()) {

            return context.getText(R.string.accessibility_shortcut_edit_dialog_title_hardware);
@@ -607,7 +540,8 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
            return context.getText(R.string.switch_off_text);

        }



        final int shortcutTypes = getUserShortcutTypes(context, UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(context,

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        int resId = R.string.accessibility_shortcut_edit_summary_software;

        if (AccessibilityUtil.isGestureNavigateEnabled(context)) {

            resId = AccessibilityUtil.isTouchExploreEnabled(context)
@@ -636,25 +570,6 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
                null, joinStrings);

    }



    protected int getUserShortcutTypes(Context context, @UserShortcutType int defaultValue) {

        if (mComponentName == null) {

            return defaultValue;

        }



        final Set<String> info = SharedPreferenceUtils.getUserShortcutTypes(context);

        final String componentName = mComponentName.flattenToString();

        final Set<String> filtered = info.stream()

                .filter(str -> str.contains(componentName))

                .collect(Collectors.toSet());

        if (filtered.isEmpty()) {

            return defaultValue;

        }



        final String str = (String) filtered.toArray()[0];

        final AccessibilityUserShortcutType shortcut = new AccessibilityUserShortcutType(str);

        return shortcut.getType();

    }



    /**

     * This method will be invoked when a button in the edit shortcut dialog is clicked.

     *
@@ -685,10 +600,13 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
        mUserShortcutTypes = AccessibilityUtil.getUserShortcutTypesFromSettings(getPrefContext(),

                mComponentName);

        if (mUserShortcutTypes != UserShortcutType.EMPTY) {

            setUserShortcutType(getPrefContext(), mUserShortcutTypes);

            final PreferredShortcut shortcut = new PreferredShortcut(

                    mComponentName.flattenToString(), mUserShortcutTypes);

            saveUserShortcutType(getPrefContext(), shortcut);

        } else {

            //  Get the user shortcut type from shared_prefs if cannot get from settings provider.

            mUserShortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

            mUserShortcutTypes = retrieveUserShortcutType(getPrefContext(),

                    mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        }

    }
@@ -711,7 +629,8 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
            return;

        }



        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        mShortcutPreference.setChecked(

                AccessibilityUtil.hasValuesInSettings(getPrefContext(), shortcutTypes,

                        mComponentName));
@@ -728,7 +647,8 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
            return;

        }



        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE);

        if (preference.isChecked()) {

            AccessibilityUtil.optInAllValuesToSettings(getPrefContext(), shortcutTypes,

                    mComponentName);
@@ -744,7 +664,8 @@ public abstract class ToggleFeaturePreferenceFragment extends SettingsPreference 
    public void onSettingsClicked(ShortcutPreference preference) {

        // Do not restore shortcut in shortcut chooser dialog when shortcutPreference is turned off.

        mUserShortcutTypesCache = mShortcutPreference.isChecked()

                ? getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE)

                ? retrieveUserShortcutType(getPrefContext(),

                mComponentName.flattenToString(), UserShortcutType.SOFTWARE)

                : UserShortcutType.EMPTY;

        showDialog(DialogEnums.EDIT_SHORTCUT);

    }

src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java

+18 −41
Original line number Diff line number Diff line
@@ -19,6 +19,8 @@ package com.android.settings.accessibility; 
import static com.android.internal.accessibility.AccessibilityShortcutController.MAGNIFICATION_CONTROLLER_NAME;

import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;

import static com.android.settings.accessibility.AccessibilityUtil.State.ON;

import static com.android.settings.accessibility.PreferredShortcuts.retrieveUserShortcutType;

import static com.android.settings.accessibility.PreferredShortcuts.saveUserShortcutType;



import android.app.Dialog;

import android.app.settings.SettingsEnums;
@@ -46,12 +48,9 @@ import com.android.settings.R; 
import com.android.settings.accessibility.AccessibilityUtil.UserShortcutType;



import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Locale;

import java.util.Set;

import java.util.StringJoiner;

import java.util.stream.Collectors;



/**

 * Fragment that shows the actual UI for providing basic magnification accessibility service setup
@@ -210,35 +209,22 @@ public class ToggleScreenMagnificationPreferenceFragment extends 
        if (saveChanges) {

            final boolean isChanged = (mUserShortcutTypesCache != UserShortcutType.EMPTY);

            if (isChanged) {

                setUserShortcutType(getPrefContext(), mUserShortcutTypesCache);

                final PreferredShortcut shortcut = new PreferredShortcut(

                        MAGNIFICATION_CONTROLLER_NAME, mUserShortcutTypesCache);

                saveUserShortcutType(getPrefContext(), shortcut);

            }

            mUserShortcutTypes = mUserShortcutTypesCache;

        }

    }



    private void setUserShortcutType(Context context, int type) {

        Set<String> info = SharedPreferenceUtils.getUserShortcutTypes(context);

        if (info.isEmpty()) {

            info = new HashSet<>();

        } else {

            final Set<String> filtered = info.stream().filter(

                    str -> str.contains(MAGNIFICATION_CONTROLLER_NAME)).collect(

                    Collectors.toSet());

            info.removeAll(filtered);

        }

        final AccessibilityUserShortcutType shortcut = new AccessibilityUserShortcutType(

                MAGNIFICATION_CONTROLLER_NAME, type);

        info.add(shortcut.flattenToString());

        SharedPreferenceUtils.setUserShortcutType(context, info);

    }



    @Override

    protected CharSequence getShortcutTypeSummary(Context context) {

        if (!mShortcutPreference.isChecked()) {

            return context.getText(R.string.switch_off_text);

        }



        final int shortcutType = getUserShortcutTypes(context, UserShortcutType.EMPTY);

        final int shortcutType = retrieveUserShortcutType(context, MAGNIFICATION_CONTROLLER_NAME,

                UserShortcutType.EMPTY);

        int resId = R.string.accessibility_shortcut_edit_summary_software;

        if (AccessibilityUtil.isGestureNavigateEnabled(context)) {

            resId = AccessibilityUtil.isTouchExploreEnabled(context)
@@ -273,21 +259,6 @@ public class ToggleScreenMagnificationPreferenceFragment extends 
                null, joinStrings);

    }



    @Override

    protected int getUserShortcutTypes(Context context, @UserShortcutType int defaultValue) {

        final Set<String> info = SharedPreferenceUtils.getUserShortcutTypes(context);

        final Set<String> filtered = info.stream().filter(

                str -> str.contains(MAGNIFICATION_CONTROLLER_NAME)).collect(

                Collectors.toSet());

        if (filtered.isEmpty()) {

            return defaultValue;

        }



        final String str = (String) filtered.toArray()[0];

        final AccessibilityUserShortcutType shortcut = new AccessibilityUserShortcutType(str);

        return shortcut.getType();

    }



    @Override

    protected void callOnAlertDialogCheckboxClicked(DialogInterface dialog, int which) {

        updateUserShortcutType(/* saveChanges= */ true);
@@ -341,7 +312,8 @@ public class ToggleScreenMagnificationPreferenceFragment extends 


    @Override

    public void onToggleClicked(ShortcutPreference preference) {

        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                MAGNIFICATION_CONTROLLER_NAME, UserShortcutType.SOFTWARE);

        if (preference.isChecked()) {

            optInAllMagnificationValuesToSettings(getPrefContext(), shortcutTypes);

            showDialog(DialogEnums.LAUNCH_ACCESSIBILITY_TUTORIAL);
@@ -355,7 +327,8 @@ public class ToggleScreenMagnificationPreferenceFragment extends 
    public void onSettingsClicked(ShortcutPreference preference) {

        // Do not restore shortcut in shortcut chooser dialog when shortcutPreference is turned off.

        mUserShortcutTypesCache = mShortcutPreference.isChecked()

                ? getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE)

                ? retrieveUserShortcutType(getPrefContext(),

                MAGNIFICATION_CONTROLLER_NAME, UserShortcutType.SOFTWARE)

                : UserShortcutType.EMPTY;

        showDialog(DialogEnums.MAGNIFICATION_EDIT_SHORTCUT);

    }
@@ -365,10 +338,13 @@ public class ToggleScreenMagnificationPreferenceFragment extends 
        // Get the user shortcut type from settings provider.

        mUserShortcutTypes = getUserShortcutTypeFromSettings(getPrefContext());

        if (mUserShortcutTypes != UserShortcutType.EMPTY) {

            setUserShortcutType(getPrefContext(), mUserShortcutTypes);

            final PreferredShortcut shortcut = new PreferredShortcut(

                    MAGNIFICATION_CONTROLLER_NAME, mUserShortcutTypes);

            saveUserShortcutType(getPrefContext(), shortcut);

        } else {

            //  Get the user shortcut type from shared_prefs if cannot get from settings provider.

            mUserShortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

            mUserShortcutTypes = retrieveUserShortcutType(getPrefContext(),

                    MAGNIFICATION_CONTROLLER_NAME, UserShortcutType.SOFTWARE);

        }

    }
@@ -389,7 +365,8 @@ public class ToggleScreenMagnificationPreferenceFragment extends 


    @Override

    protected void updateShortcutPreference() {

        final int shortcutTypes = getUserShortcutTypes(getPrefContext(), UserShortcutType.SOFTWARE);

        final int shortcutTypes = retrieveUserShortcutType(getPrefContext(),

                MAGNIFICATION_CONTROLLER_NAME, UserShortcutType.SOFTWARE);

        mShortcutPreference.setChecked(

                hasMagnificationValuesInSettings(getPrefContext(), shortcutTypes));

        mShortcutPreference.setSummary(getShortcutTypeSummary(getPrefContext()));