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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// NotesPreferenceActivity.java - 便签设置Activity
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// 主要功能：管理应用的偏好设置，特别是Google Tasks同步账户管理
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package net.micode.notes.ui;
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// ======================= 导入区域 =======================
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// Android账户管理
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import android.accounts.Account; // 账户对象
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import android.accounts.AccountManager; // 账户管理器
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// Android界面
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import android.app.ActionBar; // 操作栏
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import android.app.AlertDialog; // 警告对话框
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// Android广播
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import android.content.BroadcastReceiver; // 广播接收器
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// Android数据
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import android.content.ContentValues; // 内容值
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// Android基础
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import android.content.Context; // 上下文
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import android.content.DialogInterface; // 对话框接口
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import android.content.Intent; // 意图
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import android.content.IntentFilter; // 意图过滤器
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import android.content.SharedPreferences; // 偏好设置
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import android.os.Bundle; // 状态保存
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// Android偏好设置
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import android.preference.Preference; // 偏好设置项
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import android.preference.Preference.OnPreferenceClickListener; // 偏好设置点击监听
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import android.preference.PreferenceActivity; // 偏好设置Activity基类
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import android.preference.PreferenceCategory; // 偏好设置分类
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import android.preference.PreferenceManager; // 偏好设置管理器
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// Android工具
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import android.text.TextUtils; // 文本工具
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import android.text.format.DateFormat; // 日期格式化
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// Android视图
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import android.view.LayoutInflater; // 布局加载器
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import android.view.Menu; // 菜单
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import android.view.MenuItem; // 菜单项
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import android.view.View; // 视图基类
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import android.widget.ListView; // 列表视图
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// Android控件
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import android.widget.Button; // 按钮
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import android.widget.TextView; // 文本视图
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import android.widget.Toast; // 提示信息
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// 应用内部资源
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import net.micode.notes.R; // 资源文件R类
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// 应用数据模型
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import net.micode.notes.data.Notes; // Notes主类
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import net.micode.notes.data.Notes.NoteColumns; // 便签表列定义
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// 应用同步服务
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import net.micode.notes.gtask.remote.GTaskSyncService; // Google任务同步服务
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// 应用工具
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import net.micode.notes.tool.SearchHistoryManager; // 搜索历史管理器
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// ======================= 便签设置Activity =======================
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/**
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* NotesPreferenceActivity - 便签设置Activity
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* 继承自PreferenceActivity，管理应用的所有偏好设置
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* 核心功能：Google Tasks同步账户管理、同步控制、设置管理
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*/
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public class NotesPreferenceActivity extends PreferenceActivity {
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// ======================= 偏好设置常量 =======================
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/** 偏好设置文件名 */
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public static final String PREFERENCE_NAME = "notes_preferences";
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/** 同步账户名称偏好键 - 存储当前设置的同步账户名 */
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public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name";
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/** 最后同步时间偏好键 - 存储上次成功同步的时间戳 */
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public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time";
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/** 背景颜色随机显示偏好键 - 控制是否随机显示背景颜色 */
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public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear";
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/** 同步账户偏好键 - 用于XML中定义账户设置分类 */
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private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key";
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/** 权限过滤器键 - 用于添加账户时过滤账户类型 */
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private static final String AUTHORITIES_FILTER_KEY = "authorities";
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// ======================= 成员变量 =======================
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/** 账户设置分类 - 显示账户相关设置 */
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private PreferenceCategory mAccountCategory;
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/** Google Tasks同步广播接收器 - 监听同步状态变化 */
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private GTaskReceiver mReceiver;
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/** 原始账户列表 - 用于检测新添加的账户 */
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private Account[] mOriAccounts;
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/** 是否添加了新账户标志 - 标记用户是否添加了新账户 */
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private boolean mHasAddedAccount;
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// ======================= 生命周期方法 =======================
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/**
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* onCreate - Activity创建
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* 初始化设置界面
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* @param icicle 保存的状态
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*/
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@Override
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protected void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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// 从XML加载偏好设置
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addPreferencesFromResource(R.xml.preferences);
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// 获取账户设置分类
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mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
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// 设置清除搜索历史按钮的点击事件
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Preference clearSearchHistoryPref = findPreference("pref_key_clear_search_history");
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if (clearSearchHistoryPref != null) {
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clearSearchHistoryPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
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public boolean onPreferenceClick(Preference preference) {
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// 清除搜索历史
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SearchHistoryManager.getInstance(NotesPreferenceActivity.this).clearSearchHistory();
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Toast.makeText(NotesPreferenceActivity.this,
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"Search history cleared", Toast.LENGTH_SHORT).show();
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return true;
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}
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});
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}
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// 创建并注册同步广播接收器
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mReceiver = new GTaskReceiver();
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IntentFilter filter = new IntentFilter();
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filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
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registerReceiver(mReceiver, filter);
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mOriAccounts = null; // 初始化原始账户列表
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// 添加设置界面头部
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View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
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ListView listView = getListView();
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if (listView != null) {
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listView.addHeaderView(header, null, true);
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}
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/* 使用应用图标作为导航按钮 */
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ActionBar actionBar = getActionBar();
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if (actionBar != null) {
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actionBar.setDisplayHomeAsUpEnabled(true);
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}
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}
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/**
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* onResume - Activity恢复可见
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* 检测新添加的账户并自动设置
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*/
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@Override
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protected void onResume() {
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super.onResume();
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// 如果用户添加了新账户，需要自动设置为同步账户
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if (mHasAddedAccount) {
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Account[] accounts = getGoogleAccounts();
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// 比较新旧账户数量，检测新账户
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if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
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for (Account accountNew : accounts) {
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boolean found = false;
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for (Account accountOld : mOriAccounts) {
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if (TextUtils.equals(accountOld.name, accountNew.name)) {
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found = true;
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break;
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}
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}
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if (!found) {
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// 找到新账户，设置为同步账户
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setSyncAccount(accountNew.name);
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break;
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}
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}
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}
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}
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refreshUI(); // 刷新界面
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}
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/**
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* onDestroy - Activity销毁
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* 注销广播接收器
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*/
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@Override
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protected void onDestroy() {
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if (mReceiver != null) {
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unregisterReceiver(mReceiver);
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}
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super.onDestroy();
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}
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// ======================= 账户偏好设置加载 =======================
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/**
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* 加载账户偏好设置
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* 动态创建账户设置项
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*/
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private void loadAccountPreference() {
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mAccountCategory.removeAll(); // 清空现有设置项
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// 创建账户设置项
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Preference accountPref = new Preference(this);
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final String defaultAccount = getSyncAccountName(this);
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accountPref.setTitle(getString(R.string.preferences_account_title));
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accountPref.setSummary(getString(R.string.preferences_account_summary));
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accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
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public boolean onPreferenceClick(Preference preference) {
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if (!GTaskSyncService.isSyncing()) {
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if (TextUtils.isEmpty(defaultAccount)) {
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// 首次设置账户：显示选择账户对话框
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showSelectAccountAlertDialog();
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} else {
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// 已设置账户：显示更改账户确认对话框
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showChangeAccountConfirmAlertDialog();
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}
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} else {
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// 同步进行中，不能更改账户
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Toast.makeText(NotesPreferenceActivity.this,
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R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
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.show();
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}
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return true;
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}
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});
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mAccountCategory.addPreference(accountPref);
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}
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// ======================= 同步按钮加载 =======================
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/**
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* 加载同步按钮
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* 根据同步状态设置按钮文本和点击事件
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*/
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private void loadSyncButton() {
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Button syncButton = (Button) findViewById(R.id.preference_sync_button);
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TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
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// 设置按钮状态
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if (GTaskSyncService.isSyncing()) {
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// 同步中：显示取消按钮
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syncButton.setText(getString(R.string.preferences_button_sync_cancel));
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syncButton.setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
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}
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});
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} else {
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// 未同步：显示立即同步按钮
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syncButton.setText(getString(R.string.preferences_button_sync_immediately));
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syncButton.setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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GTaskSyncService.startSync(NotesPreferenceActivity.this);
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}
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});
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}
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// 有账户时启用按钮，无账户时禁用
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syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
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// 设置最后同步时间
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if (GTaskSyncService.isSyncing()) {
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// 同步中：显示同步进度
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lastSyncTimeView.setText(GTaskSyncService.getProgressString());
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lastSyncTimeView.setVisibility(View.VISIBLE);
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} else {
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// 未同步：显示最后同步时间
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long lastSyncTime = getLastSyncTime(this);
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if (lastSyncTime != 0) {
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lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time,
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DateFormat.format(getString(R.string.preferences_last_sync_time_format),
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lastSyncTime)));
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lastSyncTimeView.setVisibility(View.VISIBLE);
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} else {
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// 从未同步：隐藏时间显示
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lastSyncTimeView.setVisibility(View.GONE);
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}
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}
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}
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// ======================= 界面刷新 =======================
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/**
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* 刷新界面
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* 重新加载账户设置和同步按钮
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*/
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private void refreshUI() {
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loadAccountPreference();
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loadSyncButton();
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}
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// ======================= 选择账户对话框 =======================
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/**
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* 显示选择账户对话框
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* 首次设置账户时调用
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*/
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private void showSelectAccountAlertDialog() {
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AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
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// 自定义标题视图
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View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
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TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
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titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
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TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
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subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
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dialogBuilder.setCustomTitle(titleView);
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dialogBuilder.setPositiveButton(null, null); // 不显示确定按钮
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// 获取Google账户列表
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Account[] accounts = getGoogleAccounts();
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String defAccount = getSyncAccountName(this);
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// 保存原始账户列表，用于检测新账户
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mOriAccounts = accounts;
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mHasAddedAccount = false;
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if (accounts.length > 0) {
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// 创建账户列表项
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CharSequence[] items = new CharSequence[accounts.length];
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final CharSequence[] itemMapping = items; // 用于内部类访问
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int checkedItem = -1; // 默认未选中
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// 填充账户列表
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int index = 0;
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for (Account account : accounts) {
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if (TextUtils.equals(account.name, defAccount)) {
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checkedItem = index; // 选中已设置的账户
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}
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items[index++] = account.name;
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}
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// 设置单选列表
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dialogBuilder.setSingleChoiceItems(items, checkedItem,
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new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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// 选择账户
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setSyncAccount(itemMapping[which].toString());
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dialog.dismiss();
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refreshUI(); // 刷新界面
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}
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});
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}
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// 添加"添加账户"视图
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View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);
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dialogBuilder.setView(addAccountView);
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// 显示对话框
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final AlertDialog dialog = dialogBuilder.show();
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addAccountView.setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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mHasAddedAccount = true; // 标记为添加账户
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// 启动系统添加账户界面
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Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
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// 只显示Gmail账户类型
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intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
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"gmail-ls"
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});
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startActivityForResult(intent, -1);
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dialog.dismiss();
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}
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});
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}
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// ======================= 更改账户确认对话框 =======================
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/**
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* 显示更改账户确认对话框
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* 已设置账户时点击账户项调用
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*/
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private void showChangeAccountConfirmAlertDialog() {
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AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
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// 自定义标题视图
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View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
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|
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
|
|
|
// 标题包含当前账户名
|
|
|
titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
|
|
|
getSyncAccountName(this)));
|
|
|
TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
|
|
|
subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
|
|
|
dialogBuilder.setCustomTitle(titleView);
|
|
|
|
|
|
// 设置菜单项
|
|
|
CharSequence[] menuItemArray = new CharSequence[] {
|
|
|
getString(R.string.preferences_menu_change_account), // 更改账户
|
|
|
getString(R.string.preferences_menu_remove_account), // 移除账户
|
|
|
getString(R.string.preferences_menu_cancel) // 取消
|
|
|
};
|
|
|
dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
|
|
|
public void onClick(DialogInterface dialog, int which) {
|
|
|
if (which == 0) {
|
|
|
// 更改账户：显示选择账户对话框
|
|
|
showSelectAccountAlertDialog();
|
|
|
} else if (which == 1) {
|
|
|
// 移除账户：清除账户设置
|
|
|
removeSyncAccount();
|
|
|
refreshUI();
|
|
|
}
|
|
|
// 取消：不执行任何操作
|
|
|
}
|
|
|
});
|
|
|
dialogBuilder.show();
|
|
|
}
|
|
|
|
|
|
// ======================= 获取Google账户 =======================
|
|
|
|
|
|
/**
|
|
|
* 获取设备上的Google账户
|
|
|
* @return Google账户数组
|
|
|
*/
|
|
|
private Account[] getGoogleAccounts() {
|
|
|
AccountManager accountManager = AccountManager.get(this);
|
|
|
// 获取类型为"com.google"的账户（Google账户）
|
|
|
return accountManager.getAccountsByType("com.google");
|
|
|
}
|
|
|
|
|
|
// ======================= 设置同步账户 =======================
|
|
|
|
|
|
/**
|
|
|
* 设置同步账户
|
|
|
* 保存账户名到偏好设置，并清理同步相关数据
|
|
|
* @param account 账户名
|
|
|
*/
|
|
|
private void setSyncAccount(String account) {
|
|
|
if (!getSyncAccountName(this).equals(account)) {
|
|
|
// 保存到偏好设置
|
|
|
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
|
|
|
SharedPreferences.Editor editor = settings.edit();
|
|
|
if (account != null) {
|
|
|
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account);
|
|
|
} else {
|
|
|
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
|
|
|
}
|
|
|
editor.commit();
|
|
|
|
|
|
// 清理最后同步时间
|
|
|
setLastSyncTime(this, 0);
|
|
|
|
|
|
// 清理本地同步相关数据（在后台线程执行）
|
|
|
new Thread(new Runnable() {
|
|
|
public void run() {
|
|
|
ContentValues values = new ContentValues();
|
|
|
values.put(NoteColumns.GTASK_ID, ""); // 清空GTASK ID
|
|
|
values.put(NoteColumns.SYNC_ID, 0); // 清空同步ID
|
|
|
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
|
|
|
}
|
|
|
}).start();
|
|
|
|
|
|
// 显示成功提示
|
|
|
Toast.makeText(NotesPreferenceActivity.this,
|
|
|
getString(R.string.preferences_toast_success_set_accout, account),
|
|
|
Toast.LENGTH_SHORT).show();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// ======================= 移除同步账户 =======================
|
|
|
|
|
|
/**
|
|
|
* 移除同步账户
|
|
|
* 清除账户设置和同步数据
|
|
|
*/
|
|
|
private void removeSyncAccount() {
|
|
|
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
|
|
|
SharedPreferences.Editor editor = settings.edit();
|
|
|
// 移除账户名
|
|
|
if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
|
|
|
editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
|
|
|
}
|
|
|
// 移除最后同步时间
|
|
|
if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
|
|
|
editor.remove(PREFERENCE_LAST_SYNC_TIME);
|
|
|
}
|
|
|
editor.commit();
|
|
|
|
|
|
// 清理本地同步相关数据（在后台线程执行）
|
|
|
new Thread(new Runnable() {
|
|
|
public void run() {
|
|
|
ContentValues values = new ContentValues();
|
|
|
values.put(NoteColumns.GTASK_ID, ""); // 清空GTASK ID
|
|
|
values.put(NoteColumns.SYNC_ID, 0); // 清空同步ID
|
|
|
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
|
|
|
}
|
|
|
}).start();
|
|
|
}
|
|
|
|
|
|
// ======================= 静态工具方法 =======================
|
|
|
|
|
|
/**
|
|
|
* 获取同步账户名
|
|
|
* 静态方法，供其他类调用
|
|
|
* @param context 上下文
|
|
|
* @return 同步账户名，无账户时返回空字符串
|
|
|
*/
|
|
|
public static String getSyncAccountName(Context context) {
|
|
|
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
|
|
Context.MODE_PRIVATE);
|
|
|
return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 设置最后同步时间
|
|
|
* 静态方法，供其他类调用
|
|
|
* @param context 上下文
|
|
|
* @param time 最后同步时间戳
|
|
|
*/
|
|
|
public static void setLastSyncTime(Context context, long time) {
|
|
|
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
|
|
Context.MODE_PRIVATE);
|
|
|
SharedPreferences.Editor editor = settings.edit();
|
|
|
editor.putLong(PREFERENCE_LAST_SYNC_TIME, time);
|
|
|
editor.commit();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 获取最后同步时间
|
|
|
* 静态方法，供其他类调用
|
|
|
* @param context 上下文
|
|
|
* @return 最后同步时间戳，从未同步返回0
|
|
|
*/
|
|
|
public static long getLastSyncTime(Context context) {
|
|
|
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
|
|
Context.MODE_PRIVATE);
|
|
|
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
|
|
|
}
|
|
|
|
|
|
// ======================= 同步广播接收器 =======================
|
|
|
|
|
|
/**
|
|
|
* GTaskReceiver - Google Tasks同步广播接收器
|
|
|
* 监听同步状态变化
|
|
|
*/
|
|
|
private class GTaskReceiver extends BroadcastReceiver {
|
|
|
/**
|
|
|
* 接收广播
|
|
|
* 处理同步状态变化
|
|
|
*/
|
|
|
@Override
|
|
|
public void onReceive(Context context, Intent intent) {
|
|
|
refreshUI(); // 刷新界面
|
|
|
|
|
|
// 如果正在同步，更新进度信息
|
|
|
if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
|
|
|
TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
|
|
|
syncStatus.setText(intent
|
|
|
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// ======================= 菜单项处理 =======================
|
|
|
|
|
|
/**
|
|
|
* 选项菜单项选择处理
|
|
|
* 处理返回按钮点击
|
|
|
*/
|
|
|
public boolean onOptionsItemSelected(MenuItem item) {
|
|
|
switch (item.getItemId()) {
|
|
|
case android.R.id.home:
|
|
|
// 返回按钮：回到主界面
|
|
|
Intent intent = new Intent(this, NotesListActivity.class);
|
|
|
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
|
|
|
startActivity(intent);
|
|
|
return true;
|
|
|
default:
|
|
|
return false;
|
|
|
}
|
|
|
}
|
|
|
} |
