src/com/android/launcher3/settings/DeveloperOptionsFragment.java - platform/packages/apps/Launcher3 - Git at Google

 /*
  * Copyright (C) 2018 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.launcher3.settings;

 import static android.content.pm.PackageManager.GET_RESOLVED_FILTER;
 import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
 import static android.view.View.GONE;
 import static android.view.View.VISIBLE;

 import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.PLUGIN_CHANGED;
 import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.pluginEnabledKey;

 import android.annotation.TargetApi;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.util.ArrayMap;
 import android.util.Pair;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.EditText;

 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.preference.Preference;
 import androidx.preference.PreferenceCategory;
 import androidx.preference.PreferenceDataStore;
 import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.PreferenceGroup;
 import androidx.preference.PreferenceScreen;
 import androidx.preference.PreferenceViewHolder;
 import androidx.preference.SwitchPreference;

 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.config.FlagTogglerPrefUi;
 import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;
 import java.util.stream.Collectors;

 /**
  * Dev-build only UI allowing developers to toggle flag settings and plugins.
  * See {@link FeatureFlags}.
  */
 @TargetApi(Build.VERSION_CODES.O)
 public class DeveloperOptionsFragment extends PreferenceFragmentCompat {

     private static final String ACTION_PLUGIN_SETTINGS = "com.android.systemui.action.PLUGIN_SETTINGS";
     private static final String PLUGIN_PERMISSION = "com.android.systemui.permission.PLUGIN";

     private final BroadcastReceiver mPluginReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             loadPluginPrefs();
         }
     };

     private PreferenceScreen mPreferenceScreen;

     private PreferenceCategory mPluginsCategory;
     private FlagTogglerPrefUi mFlagTogglerPrefUi;

     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
         filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
         filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
         filter.addDataScheme("package");
         getContext().registerReceiver(mPluginReceiver, filter);
         getContext().registerReceiver(mPluginReceiver,
                 new IntentFilter(Intent.ACTION_USER_UNLOCKED));

         mPreferenceScreen = getPreferenceManager().createPreferenceScreen(getContext());
         setPreferenceScreen(mPreferenceScreen);

         initFlags();
         loadPluginPrefs();
         maybeAddSandboxCategory();

         if (getActivity() != null) {
             getActivity().setTitle("Developer Options");
         }
     }

     private void filterPreferences(String query, PreferenceGroup pg) {
         int count = pg.getPreferenceCount();
         int hidden = 0;
         for (int i = 0; i < count; i++) {
             Preference preference = pg.getPreference(i);
             if (preference instanceof PreferenceGroup) {
                 filterPreferences(query, (PreferenceGroup) preference);
             } else {
                 String title = preference.getTitle().toString().toLowerCase().replace("_", " ");
                 if (query.isEmpty() || title.contains(query)) {
                     preference.setVisible(true);
                 } else {
                     preference.setVisible(false);
                     hidden++;
                 }
             }
         }
         pg.setVisible(hidden != count);
     }

     @Override
     public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
         EditText filterBox = view.findViewById(R.id.filter_box);
         filterBox.setVisibility(VISIBLE);
         filterBox.addTextChangedListener(new TextWatcher() {
             @Override
             public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

             }

             @Override
             public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

             }

             @Override
             public void afterTextChanged(Editable editable) {
                 String query = editable.toString().toLowerCase().replace("_", " ");
                 filterPreferences(query, mPreferenceScreen);
             }
         });

         View listView = getListView();
         final int bottomPadding = listView.getPaddingBottom();
         listView.setOnApplyWindowInsetsListener((v, insets) -> {
             v.setPadding(
                     v.getPaddingLeft(),
                     v.getPaddingTop(),
                     v.getPaddingRight(),
                     bottomPadding + insets.getSystemWindowInsetBottom());
             return insets.consumeSystemWindowInsets();
         });
     }

     @Override
     public void onDestroy() {
         super.onDestroy();
         getContext().unregisterReceiver(mPluginReceiver);
     }

     private PreferenceCategory newCategory(String title) {
         PreferenceCategory category = new PreferenceCategory(getContext());
         category.setOrder(Preference.DEFAULT_ORDER);
         category.setTitle(title);
         mPreferenceScreen.addPreference(category);
         return category;
     }

     private void initFlags() {
         if (!FeatureFlags.showFlagTogglerUi(getContext())) {
             return;
         }

         mFlagTogglerPrefUi = new FlagTogglerPrefUi(this);
         mFlagTogglerPrefUi.applyTo(newCategory("Feature flags"));
     }

     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         if (mFlagTogglerPrefUi != null) {
             mFlagTogglerPrefUi.onCreateOptionsMenu(menu);
         }
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         if (mFlagTogglerPrefUi != null) {
             mFlagTogglerPrefUi.onOptionsItemSelected(item);
         }
         return super.onOptionsItemSelected(item);
     }

     @Override
     public void onStop() {
         if (mFlagTogglerPrefUi != null) {
             mFlagTogglerPrefUi.onStop();
         }
         super.onStop();
     }

     private void loadPluginPrefs() {
         if (mPluginsCategory != null) {
             mPreferenceScreen.removePreference(mPluginsCategory);
         }
         if (!PluginManagerWrapper.hasPlugins(getActivity())) {
             mPluginsCategory = null;
             return;
         }
         mPluginsCategory = newCategory("Plugins");

         PluginManagerWrapper manager = PluginManagerWrapper.INSTANCE.get(getContext());
         Context prefContext = getContext();
         PackageManager pm = getContext().getPackageManager();

         Set<String> pluginActions = manager.getPluginActions();

         ArrayMap<Pair<String, String>, ArrayList<Pair<String, ResolveInfo>>> plugins =
                 new ArrayMap<>();

         Set<String> pluginPermissionApps = pm.getPackagesHoldingPermissions(
                 new String[]{PLUGIN_PERMISSION}, MATCH_DISABLED_COMPONENTS)
                 .stream()
                 .map(pi -> pi.packageName)
                 .collect(Collectors.toSet());

         for (String action : pluginActions) {
             String name = toName(action);
             List<ResolveInfo> result = pm.queryIntentServices(
                     new Intent(action), MATCH_DISABLED_COMPONENTS | GET_RESOLVED_FILTER);
             for (ResolveInfo info : result) {
                 String packageName = info.serviceInfo.packageName;
                 if (!pluginPermissionApps.contains(packageName)) {
                     continue;
                 }

                 Pair<String, String> key = Pair.create(packageName, info.serviceInfo.processName);
                 if (!plugins.containsKey(key)) {
                     plugins.put(key, new ArrayList<>());
                 }
                 plugins.get(key).add(Pair.create(name, info));
             }
         }

         PreferenceDataStore enabler = manager.getPluginEnabler();
         plugins.forEach((key, si) -> {
             String packageName = key.first;
             List<ComponentName> componentNames = si.stream()
                     .map(p -> new ComponentName(packageName, p.second.serviceInfo.name))
                     .collect(Collectors.toList());
             if (!componentNames.isEmpty()) {
                 SwitchPreference pref = new PluginPreference(
                         prefContext, si.get(0).second, enabler, componentNames);
                 pref.setSummary("Plugins: "
                         + si.stream().map(p -> p.first).collect(Collectors.joining(", ")));
                 mPluginsCategory.addPreference(pref);
             }
         });
     }

     private void maybeAddSandboxCategory() {
         Context context = getContext();
         if (context == null) {
             return;
         }
         Intent launchSandboxIntent =
                 new Intent("com.android.quickstep.action.GESTURE_SANDBOX")
                         .setPackage(context.getPackageName())
                         .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         if (launchSandboxIntent.resolveActivity(context.getPackageManager()) == null) {
             return;
         }
         PreferenceCategory sandboxCategory = newCategory("Gesture Navigation Sandbox");
         sandboxCategory.setSummary("Learn and practice navigation gestures");
         Preference launchOnboardingTutorialPreference = new Preference(context);
         launchOnboardingTutorialPreference.setKey("launchOnboardingTutorial");
         launchOnboardingTutorialPreference.setTitle("Launch Onboarding Tutorial");
         launchOnboardingTutorialPreference.setSummary("Learn the basic navigation gestures.");
         launchOnboardingTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {
                             "HOME_NAVIGATION",
                             "BACK_NAVIGATION",
                             "OVERVIEW_NAVIGATION"}));
             return true;
         });
         sandboxCategory.addPreference(launchOnboardingTutorialPreference);
         Preference launchBackTutorialPreference = new Preference(context);
         launchBackTutorialPreference.setKey("launchBackTutorial");
         launchBackTutorialPreference.setTitle("Launch Back Tutorial");
         launchBackTutorialPreference.setSummary("Learn how to use the Back gesture");
         launchBackTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {"BACK_NAVIGATION"}));
             return true;
         });
         sandboxCategory.addPreference(launchBackTutorialPreference);
         Preference launchHomeTutorialPreference = new Preference(context);
         launchHomeTutorialPreference.setKey("launchHomeTutorial");
         launchHomeTutorialPreference.setTitle("Launch Home Tutorial");
         launchHomeTutorialPreference.setSummary("Learn how to use the Home gesture");
         launchHomeTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {"HOME_NAVIGATION"}));
             return true;
         });
         sandboxCategory.addPreference(launchHomeTutorialPreference);
         Preference launchOverviewTutorialPreference = new Preference(context);
         launchOverviewTutorialPreference.setKey("launchOverviewTutorial");
         launchOverviewTutorialPreference.setTitle("Launch Overview Tutorial");
         launchOverviewTutorialPreference.setSummary("Learn how to use the Overview gesture");
         launchOverviewTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {"OVERVIEW_NAVIGATION"}));
             return true;
         });
         sandboxCategory.addPreference(launchOverviewTutorialPreference);
         Preference launchAssistantTutorialPreference = new Preference(context);
         launchAssistantTutorialPreference.setKey("launchAssistantTutorial");
         launchAssistantTutorialPreference.setTitle("Launch Assistant Tutorial");
         launchAssistantTutorialPreference.setSummary("Learn how to use the Assistant gesture");
         launchAssistantTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {"ASSISTANT"}));
             return true;
         });
         sandboxCategory.addPreference(launchAssistantTutorialPreference);
         Preference launchSandboxModeTutorialPreference = new Preference(context);
         launchSandboxModeTutorialPreference.setKey("launchSandboxMode");
         launchSandboxModeTutorialPreference.setTitle("Launch Sandbox Mode");
         launchSandboxModeTutorialPreference.setSummary("Practice navigation gestures");
         launchSandboxModeTutorialPreference.setOnPreferenceClickListener(preference -> {
             startActivity(launchSandboxIntent.putExtra(
                     "tutorial_steps",
                     new String[] {"SANDBOX_MODE"}));
             return true;
         });
         sandboxCategory.addPreference(launchSandboxModeTutorialPreference);
     }

     private String toName(String action) {
         String str = action.replace("com.android.systemui.action.PLUGIN_", "")
                 .replace("com.android.launcher3.action.PLUGIN_", "");
         StringBuilder b = new StringBuilder();
         for (String s : str.split("_")) {
             if (b.length() != 0) {
                 b.append(' ');
             }
             b.append(s.substring(0, 1));
             b.append(s.substring(1).toLowerCase());
         }
         return b.toString();
     }

     private static class PluginPreference extends SwitchPreference {
         private final String mPackageName;
         private final ResolveInfo mSettingsInfo;
         private final PreferenceDataStore mPluginEnabler;
         private final List<ComponentName> mComponentNames;

         PluginPreference(Context prefContext, ResolveInfo pluginInfo,
                 PreferenceDataStore pluginEnabler, List<ComponentName> componentNames) {
             super(prefContext);
             PackageManager pm = prefContext.getPackageManager();
             mPackageName = pluginInfo.serviceInfo.applicationInfo.packageName;
             Intent settingsIntent = new Intent(ACTION_PLUGIN_SETTINGS).setPackage(mPackageName);
             // If any Settings activity in app has category filters, set plugin action as category.
             List<ResolveInfo> settingsInfos =
                     pm.queryIntentActivities(settingsIntent, GET_RESOLVED_FILTER);
             if (pluginInfo.filter != null) {
                 for (ResolveInfo settingsInfo : settingsInfos) {
                     if (settingsInfo.filter != null && settingsInfo.filter.countCategories() > 0) {
                         settingsIntent.addCategory(pluginInfo.filter.getAction(0));
                         break;
                     }
                 }
             }

             mSettingsInfo = pm.resolveActivity(settingsIntent, 0);
             mPluginEnabler = pluginEnabler;
             mComponentNames = componentNames;
             setTitle(pluginInfo.loadLabel(pm));
             setChecked(isPluginEnabled());
             setWidgetLayoutResource(R.layout.switch_preference_with_settings);
         }

         private boolean isEnabled(ComponentName cn) {
             return mPluginEnabler.getBoolean(pluginEnabledKey(cn), true);

         }

         private boolean isPluginEnabled() {
             for (ComponentName componentName : mComponentNames) {
                 if (!isEnabled(componentName)) {
                     return false;
                 }
             }
             return true;
         }

         @Override
         protected boolean persistBoolean(boolean isEnabled) {
             boolean shouldSendBroadcast = false;
             for (ComponentName componentName : mComponentNames) {
                 if (isEnabled(componentName) != isEnabled) {
                     mPluginEnabler.putBoolean(pluginEnabledKey(componentName), isEnabled);
                     shouldSendBroadcast = true;
                 }
             }
             if (shouldSendBroadcast) {
                 final String pkg = mPackageName;
                 final Intent intent = new Intent(PLUGIN_CHANGED,
                         pkg != null ? Uri.fromParts("package", pkg, null) : null);
                 getContext().sendBroadcast(intent);
             }
             setChecked(isEnabled);
             return true;
         }

         @Override
         public void onBindViewHolder(PreferenceViewHolder holder) {
             super.onBindViewHolder(holder);
             boolean hasSettings = mSettingsInfo != null;
             holder.findViewById(R.id.settings).setVisibility(hasSettings ? VISIBLE : GONE);
             holder.findViewById(R.id.divider).setVisibility(hasSettings ? VISIBLE : GONE);
             holder.findViewById(R.id.settings).setOnClickListener(v -> {
                 if (hasSettings) {
                     v.getContext().startActivity(new Intent().setComponent(
                             new ComponentName(mSettingsInfo.activityInfo.packageName,
                                     mSettingsInfo.activityInfo.name)));
                 }
             });
             holder.itemView.setOnLongClickListener(v -> {
                 Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                 intent.setData(Uri.fromParts("package", mPackageName, null));
                 getContext().startActivity(intent);
                 return true;
             });
         }
     }
 }
	/*
	* Copyright (C) 2018 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.launcher3.settings;

	import static android.content.pm.PackageManager.GET_RESOLVED_FILTER;
	import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
	import static android.view.View.GONE;
	import static android.view.View.VISIBLE;

	import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.PLUGIN_CHANGED;
	import static com.android.launcher3.uioverrides.plugins.PluginManagerWrapper.pluginEnabledKey;

	import android.annotation.TargetApi;
	import android.content.BroadcastReceiver;
	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.net.Uri;
	import android.os.Build;
	import android.os.Bundle;
	import android.provider.Settings;
	import android.text.Editable;
	import android.text.TextWatcher;
	import android.util.ArrayMap;
	import android.util.Pair;
	import android.view.Menu;
	import android.view.MenuInflater;
	import android.view.MenuItem;
	import android.view.View;
	import android.widget.EditText;

	import androidx.annotation.NonNull;
	import androidx.annotation.Nullable;
	import androidx.preference.Preference;
	import androidx.preference.PreferenceCategory;
	import androidx.preference.PreferenceDataStore;
	import androidx.preference.PreferenceFragmentCompat;
	import androidx.preference.PreferenceGroup;
	import androidx.preference.PreferenceScreen;
	import androidx.preference.PreferenceViewHolder;
	import androidx.preference.SwitchPreference;

	import com.android.launcher3.R;
	import com.android.launcher3.config.FeatureFlags;
	import com.android.launcher3.config.FlagTogglerPrefUi;
	import com.android.launcher3.uioverrides.plugins.PluginManagerWrapper;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Set;
	import java.util.stream.Collectors;

	/**
	* Dev-build only UI allowing developers to toggle flag settings and plugins.
	* See {@link FeatureFlags}.
	*/
	@TargetApi(Build.VERSION_CODES.O)
	public class DeveloperOptionsFragment extends PreferenceFragmentCompat {

	private static final String ACTION_PLUGIN_SETTINGS = "com.android.systemui.action.PLUGIN_SETTINGS";
	private static final String PLUGIN_PERMISSION = "com.android.systemui.permission.PLUGIN";

	private final BroadcastReceiver mPluginReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	loadPluginPrefs();
	}
	};

	private PreferenceScreen mPreferenceScreen;

	private PreferenceCategory mPluginsCategory;
	private FlagTogglerPrefUi mFlagTogglerPrefUi;

	@Override
	public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
	IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
	filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
	filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
	filter.addDataScheme("package");
	getContext().registerReceiver(mPluginReceiver, filter);
	getContext().registerReceiver(mPluginReceiver,
	new IntentFilter(Intent.ACTION_USER_UNLOCKED));

	mPreferenceScreen = getPreferenceManager().createPreferenceScreen(getContext());
	setPreferenceScreen(mPreferenceScreen);

	initFlags();
	loadPluginPrefs();
	maybeAddSandboxCategory();

	if (getActivity() != null) {
	getActivity().setTitle("Developer Options");
	}
	}

	private void filterPreferences(String query, PreferenceGroup pg) {
	int count = pg.getPreferenceCount();
	int hidden = 0;
	for (int i = 0; i < count; i++) {
	Preference preference = pg.getPreference(i);
	if (preference instanceof PreferenceGroup) {
	filterPreferences(query, (PreferenceGroup) preference);
	} else {
	String title = preference.getTitle().toString().toLowerCase().replace("_", " ");
	if (query.isEmpty() \|\| title.contains(query)) {
	preference.setVisible(true);
	} else {
	preference.setVisible(false);
	hidden++;
	}
	}
	}
	pg.setVisible(hidden != count);
	}

	@Override
	public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
	super.onViewCreated(view, savedInstanceState);
	EditText filterBox = view.findViewById(R.id.filter_box);
	filterBox.setVisibility(VISIBLE);
	filterBox.addTextChangedListener(new TextWatcher() {
	@Override
	public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

	}

	@Override
	public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

	}

	@Override
	public void afterTextChanged(Editable editable) {
	String query = editable.toString().toLowerCase().replace("_", " ");
	filterPreferences(query, mPreferenceScreen);
	}
	});

	View listView = getListView();
	final int bottomPadding = listView.getPaddingBottom();
	listView.setOnApplyWindowInsetsListener((v, insets) -> {
	v.setPadding(
	v.getPaddingLeft(),
	v.getPaddingTop(),
	v.getPaddingRight(),
	bottomPadding + insets.getSystemWindowInsetBottom());
	return insets.consumeSystemWindowInsets();
	});
	}

	@Override
	public void onDestroy() {
	super.onDestroy();
	getContext().unregisterReceiver(mPluginReceiver);
	}

	private PreferenceCategory newCategory(String title) {
	PreferenceCategory category = new PreferenceCategory(getContext());
	category.setOrder(Preference.DEFAULT_ORDER);
	category.setTitle(title);
	mPreferenceScreen.addPreference(category);
	return category;
	}

	private void initFlags() {
	if (!FeatureFlags.showFlagTogglerUi(getContext())) {
	return;
	}

	mFlagTogglerPrefUi = new FlagTogglerPrefUi(this);
	mFlagTogglerPrefUi.applyTo(newCategory("Feature flags"));
	}

	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
	if (mFlagTogglerPrefUi != null) {
	mFlagTogglerPrefUi.onCreateOptionsMenu(menu);
	}
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
	if (mFlagTogglerPrefUi != null) {
	mFlagTogglerPrefUi.onOptionsItemSelected(item);
	}
	return super.onOptionsItemSelected(item);
	}

	@Override
	public void onStop() {
	if (mFlagTogglerPrefUi != null) {
	mFlagTogglerPrefUi.onStop();
	}
	super.onStop();
	}

	private void loadPluginPrefs() {
	if (mPluginsCategory != null) {
	mPreferenceScreen.removePreference(mPluginsCategory);
	}
	if (!PluginManagerWrapper.hasPlugins(getActivity())) {
	mPluginsCategory = null;
	return;
	}
	mPluginsCategory = newCategory("Plugins");

	PluginManagerWrapper manager = PluginManagerWrapper.INSTANCE.get(getContext());
	Context prefContext = getContext();
	PackageManager pm = getContext().getPackageManager();

	Set<String> pluginActions = manager.getPluginActions();

	ArrayMap<Pair<String, String>, ArrayList<Pair<String, ResolveInfo>>> plugins =
	new ArrayMap<>();

	Set<String> pluginPermissionApps = pm.getPackagesHoldingPermissions(
	new String[]{PLUGIN_PERMISSION}, MATCH_DISABLED_COMPONENTS)
	.stream()
	.map(pi -> pi.packageName)
	.collect(Collectors.toSet());

	for (String action : pluginActions) {
	String name = toName(action);
	List<ResolveInfo> result = pm.queryIntentServices(
	new Intent(action), MATCH_DISABLED_COMPONENTS \| GET_RESOLVED_FILTER);
	for (ResolveInfo info : result) {
	String packageName = info.serviceInfo.packageName;
	if (!pluginPermissionApps.contains(packageName)) {
	continue;
	}

	Pair<String, String> key = Pair.create(packageName, info.serviceInfo.processName);
	if (!plugins.containsKey(key)) {
	plugins.put(key, new ArrayList<>());
	}
	plugins.get(key).add(Pair.create(name, info));
	}
	}

	PreferenceDataStore enabler = manager.getPluginEnabler();
	plugins.forEach((key, si) -> {
	String packageName = key.first;
	List<ComponentName> componentNames = si.stream()
	.map(p -> new ComponentName(packageName, p.second.serviceInfo.name))
	.collect(Collectors.toList());
	if (!componentNames.isEmpty()) {
	SwitchPreference pref = new PluginPreference(
	prefContext, si.get(0).second, enabler, componentNames);
	pref.setSummary("Plugins: "
	+ si.stream().map(p -> p.first).collect(Collectors.joining(", ")));
	mPluginsCategory.addPreference(pref);
	}
	});
	}

	private void maybeAddSandboxCategory() {
	Context context = getContext();
	if (context == null) {
	return;
	}
	Intent launchSandboxIntent =
	new Intent("com.android.quickstep.action.GESTURE_SANDBOX")
	.setPackage(context.getPackageName())
	.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
	if (launchSandboxIntent.resolveActivity(context.getPackageManager()) == null) {
	return;
	}
	PreferenceCategory sandboxCategory = newCategory("Gesture Navigation Sandbox");
	sandboxCategory.setSummary("Learn and practice navigation gestures");
	Preference launchOnboardingTutorialPreference = new Preference(context);
	launchOnboardingTutorialPreference.setKey("launchOnboardingTutorial");
	launchOnboardingTutorialPreference.setTitle("Launch Onboarding Tutorial");
	launchOnboardingTutorialPreference.setSummary("Learn the basic navigation gestures.");
	launchOnboardingTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {
	"HOME_NAVIGATION",
	"BACK_NAVIGATION",
	"OVERVIEW_NAVIGATION"}));
	return true;
	});
	sandboxCategory.addPreference(launchOnboardingTutorialPreference);
	Preference launchBackTutorialPreference = new Preference(context);
	launchBackTutorialPreference.setKey("launchBackTutorial");
	launchBackTutorialPreference.setTitle("Launch Back Tutorial");
	launchBackTutorialPreference.setSummary("Learn how to use the Back gesture");
	launchBackTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {"BACK_NAVIGATION"}));
	return true;
	});
	sandboxCategory.addPreference(launchBackTutorialPreference);
	Preference launchHomeTutorialPreference = new Preference(context);
	launchHomeTutorialPreference.setKey("launchHomeTutorial");
	launchHomeTutorialPreference.setTitle("Launch Home Tutorial");
	launchHomeTutorialPreference.setSummary("Learn how to use the Home gesture");
	launchHomeTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {"HOME_NAVIGATION"}));
	return true;
	});
	sandboxCategory.addPreference(launchHomeTutorialPreference);
	Preference launchOverviewTutorialPreference = new Preference(context);
	launchOverviewTutorialPreference.setKey("launchOverviewTutorial");
	launchOverviewTutorialPreference.setTitle("Launch Overview Tutorial");
	launchOverviewTutorialPreference.setSummary("Learn how to use the Overview gesture");
	launchOverviewTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {"OVERVIEW_NAVIGATION"}));
	return true;
	});
	sandboxCategory.addPreference(launchOverviewTutorialPreference);
	Preference launchAssistantTutorialPreference = new Preference(context);
	launchAssistantTutorialPreference.setKey("launchAssistantTutorial");
	launchAssistantTutorialPreference.setTitle("Launch Assistant Tutorial");
	launchAssistantTutorialPreference.setSummary("Learn how to use the Assistant gesture");
	launchAssistantTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {"ASSISTANT"}));
	return true;
	});
	sandboxCategory.addPreference(launchAssistantTutorialPreference);
	Preference launchSandboxModeTutorialPreference = new Preference(context);
	launchSandboxModeTutorialPreference.setKey("launchSandboxMode");
	launchSandboxModeTutorialPreference.setTitle("Launch Sandbox Mode");
	launchSandboxModeTutorialPreference.setSummary("Practice navigation gestures");
	launchSandboxModeTutorialPreference.setOnPreferenceClickListener(preference -> {
	startActivity(launchSandboxIntent.putExtra(
	"tutorial_steps",
	new String[] {"SANDBOX_MODE"}));
	return true;
	});
	sandboxCategory.addPreference(launchSandboxModeTutorialPreference);
	}

	private String toName(String action) {
	String str = action.replace("com.android.systemui.action.PLUGIN_", "")
	.replace("com.android.launcher3.action.PLUGIN_", "");
	StringBuilder b = new StringBuilder();
	for (String s : str.split("_")) {
	if (b.length() != 0) {
	b.append(' ');
	}
	b.append(s.substring(0, 1));
	b.append(s.substring(1).toLowerCase());
	}
	return b.toString();
	}

	private static class PluginPreference extends SwitchPreference {
	private final String mPackageName;
	private final ResolveInfo mSettingsInfo;
	private final PreferenceDataStore mPluginEnabler;
	private final List<ComponentName> mComponentNames;

	PluginPreference(Context prefContext, ResolveInfo pluginInfo,
	PreferenceDataStore pluginEnabler, List<ComponentName> componentNames) {
	super(prefContext);
	PackageManager pm = prefContext.getPackageManager();
	mPackageName = pluginInfo.serviceInfo.applicationInfo.packageName;
	Intent settingsIntent = new Intent(ACTION_PLUGIN_SETTINGS).setPackage(mPackageName);
	// If any Settings activity in app has category filters, set plugin action as category.
	List<ResolveInfo> settingsInfos =
	pm.queryIntentActivities(settingsIntent, GET_RESOLVED_FILTER);
	if (pluginInfo.filter != null) {
	for (ResolveInfo settingsInfo : settingsInfos) {
	if (settingsInfo.filter != null && settingsInfo.filter.countCategories() > 0) {
	settingsIntent.addCategory(pluginInfo.filter.getAction(0));
	break;
	}
	}
	}

	mSettingsInfo = pm.resolveActivity(settingsIntent, 0);
	mPluginEnabler = pluginEnabler;
	mComponentNames = componentNames;
	setTitle(pluginInfo.loadLabel(pm));
	setChecked(isPluginEnabled());
	setWidgetLayoutResource(R.layout.switch_preference_with_settings);
	}

	private boolean isEnabled(ComponentName cn) {
	return mPluginEnabler.getBoolean(pluginEnabledKey(cn), true);

	}

	private boolean isPluginEnabled() {
	for (ComponentName componentName : mComponentNames) {
	if (!isEnabled(componentName)) {
	return false;
	}
	}
	return true;
	}

	@Override
	protected boolean persistBoolean(boolean isEnabled) {
	boolean shouldSendBroadcast = false;
	for (ComponentName componentName : mComponentNames) {
	if (isEnabled(componentName) != isEnabled) {
	mPluginEnabler.putBoolean(pluginEnabledKey(componentName), isEnabled);
	shouldSendBroadcast = true;
	}
	}
	if (shouldSendBroadcast) {
	final String pkg = mPackageName;
	final Intent intent = new Intent(PLUGIN_CHANGED,
	pkg != null ? Uri.fromParts("package", pkg, null) : null);
	getContext().sendBroadcast(intent);
	}
	setChecked(isEnabled);
	return true;
	}

	@Override
	public void onBindViewHolder(PreferenceViewHolder holder) {
	super.onBindViewHolder(holder);
	boolean hasSettings = mSettingsInfo != null;
	holder.findViewById(R.id.settings).setVisibility(hasSettings ? VISIBLE : GONE);
	holder.findViewById(R.id.divider).setVisibility(hasSettings ? VISIBLE : GONE);
	holder.findViewById(R.id.settings).setOnClickListener(v -> {
	if (hasSettings) {
	v.getContext().startActivity(new Intent().setComponent(
	new ComponentName(mSettingsInfo.activityInfo.packageName,
	mSettingsInfo.activityInfo.name)));
	}
	});
	holder.itemView.setOnLongClickListener(v -> {
	Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
	intent.setData(Uri.fromParts("package", mPackageName, null));
	getContext().startActivity(intent);
	return true;
	});
	}
	}
	}