| /* |
| * Copyright (C) 2014 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.camera.settings; |
| |
| import android.app.Activity; |
| import android.app.Application; |
| import android.content.Context; |
| |
| import android.preference.SwitchPreference; |
| import android.util.AttributeSet; |
| |
| import com.android.camera.app.CameraApp; |
| |
| /** |
| * This class allows Settings UIs to display and set boolean values controlled |
| * via the {@link SettingManager}. The Default {@link SwitchPreference} uses |
| * {@link android.content.SharedPreferences} as a backing store; since the |
| * {@link SettingManager} stores all settings as Strings we need to ensure we |
| * get and set boolean settings through the manager. |
| */ |
| public class ManagedSwitchPreference extends SwitchPreference { |
| public ManagedSwitchPreference(Context context) { |
| super(context); |
| } |
| |
| public ManagedSwitchPreference(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public ManagedSwitchPreference(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| @Override |
| public boolean getPersistedBoolean(boolean defaultReturnValue) { |
| CameraApp cameraApp = getCameraApp(); |
| if (cameraApp == null) { |
| // The context and app may not be initialized upon initial inflation of the |
| // preference from XML. In that case return the default value. |
| return defaultReturnValue; |
| } |
| SettingsManager settingsManager = cameraApp.getSettingsManager(); |
| if (settingsManager != null) { |
| return settingsManager.getBoolean(SettingsManager.SCOPE_GLOBAL, getKey()); |
| } else { |
| // If the SettingsManager is for some reason not initialized, |
| // perhaps triggered by a monkey, return default value. |
| return defaultReturnValue; |
| } |
| } |
| |
| @Override |
| public boolean persistBoolean(boolean value) { |
| CameraApp cameraApp = getCameraApp(); |
| if (cameraApp == null) { |
| // The context may not be initialized upon initial inflation of the |
| // preference from XML. In that case return false to note the value won't |
| // be persisted. |
| return false; |
| } |
| SettingsManager settingsManager = cameraApp.getSettingsManager(); |
| if (settingsManager != null) { |
| settingsManager.set(SettingsManager.SCOPE_GLOBAL, getKey(), value); |
| return true; |
| } else { |
| // If the SettingsManager is for some reason not initialized, |
| // perhaps triggered by a monkey, return false to note the value |
| // was not persisted. |
| return false; |
| } |
| } |
| |
| private CameraApp getCameraApp() { |
| Context context = getContext(); |
| if (context instanceof Activity) { |
| Application application = ((Activity) context).getApplication(); |
| if (application instanceof CameraApp) { |
| return (CameraApp) application; |
| } |
| } |
| return null; |
| } |
| } |