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@ -14,6 +14,7 @@
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* limitations under the License.
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*/
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// 导入必要的包和类
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package net.micode.notes.ui;
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import android.accounts.Account;
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@ -41,441 +42,79 @@ import android.view.View;
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import android.widget.Button;
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import android.widget.TextView;
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import android.widget.Toast;
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import net.micode.notes.R;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.gtask.remote.GTaskSyncService;
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public class NotesPreferenceActivity extends PreferenceActivity {
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// 常量定义部分:主要用于设置和同步相关的偏好设置键
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public static final String PREFERENCE_NAME = "notes_preferences"; // 偏好设置的名称
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public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; // 同步账户名称的键
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public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; // 上次同步时间的键
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public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; // 设置背景颜色的键
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private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; // 同步账户的键
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private static final String AUTHORITIES_FILTER_KEY = "authorities"; // 权限过滤键
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// 类成员变量定义部分:主要用于账户同步和UI更新
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private PreferenceCategory mAccountCategory; // 账户分类偏好项
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private GTaskReceiver mReceiver; // 接收同步任务的广播接收器
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private Account[] mOriAccounts; // 原始账户数组
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// 定义常量,用于标识偏好设置名称、账户信息键等
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public static final String PREFERENCE_NAME = "notes_preferences"; // 偏好设置存储的名称
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public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; // 同步账户名的偏好键
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public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; // 上次同步时间的偏好键
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public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; // 背景颜色设置的偏好键
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private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; // 同步账户选择的偏好键
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private static final String AUTHORITIES_FILTER_KEY = "authorities"; // 权限过滤器键
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// 定义成员变量,用于管理UI组件、广播接收器及账户状态
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private PreferenceCategory mAccountCategory; // 管理账户相关偏好设置的容器
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private GTaskReceiver mReceiver; // 广播接收器,用于监听同步服务的状态变化
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private Account[] mOriAccounts; // 存储原始的Google账户列表
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private boolean mHasAddedAccount; // 标记是否已添加新账户
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/**
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* 当设置Activity创建时调用。
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* 主要进行界面初始化和设置账户同步。
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*
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* @param icicle 保存Activity状态的Bundle,用于恢复状态。
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* Activity创建时调用,初始化用户界面和注册广播接收器。
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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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// 设置返回按钮
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getActionBar().setDisplayHomeAsUpEnabled(true);
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// 从XML加载偏好设置
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addPreferencesFromResource(R.xml.preferences);
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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getActionBar().setDisplayHomeAsUpEnabled(true); // 设置返回按钮
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addPreferencesFromResource(R.xml.preferences); // 加载偏好设置布局资源
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mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
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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); // 注册广播接收器以监听同步服务
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IntentFilter filter = new IntentFilter(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
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registerReceiver(mReceiver, filter); // 注册广播接收器以监听同步服务的状态变化
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mOriAccounts = null;
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// 添加设置头部视图
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View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
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getListView().addHeaderView(header, null, true);
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getListView().addHeaderView(header, null, true); // 添加头部视图
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}
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/**
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* 当设置Activity恢复到前台时调用。
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* 主要用于检查并自动设置新添加的账户进行同步。
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* 当Activity恢复到前台时调用,检查并处理新添加的账户。
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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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// 自动设置新添加的账户进行同步
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if (mHasAddedAccount) {
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Account[] accounts = getGoogleAccounts();
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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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checkAndSetNewAccount(); // 检查并自动设置新添加的账户进行同步
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}
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refreshUI(); // 刷新UI界面
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}
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if (!found) {
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setSyncAccount(accountNew.name); // 设置新账户进行同步
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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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// 刷新UI
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refreshUI();
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}
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/**
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* 当Activity即将被销毁时调用,用于注销广播接收器。
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* 当Activity即将被销毁时调用,注销广播接收器以防止内存泄漏。
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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); // 注销广播接收器,避免内存泄漏
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}
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if (mReceiver != null) unregisterReceiver(mReceiver);
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super.onDestroy();
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}
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/**
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* 加载账户偏好设置,展示当前同步账户信息及操作。
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*/
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private void loadAccountPreference() {
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mAccountCategory.removeAll(); // 清空账户分类下的所有条目
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// 创建并配置账户偏好项
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Preference accountPref = new Preference(this);
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final String defaultAccount = getSyncAccountName(this); // 获取默认同步账户名称
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accountPref.setTitle(getString(R.string.preferences_account_title)); // 设置标题
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accountPref.setSummary(getString(R.string.preferences_account_summary)); // 设置摘要
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accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
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public boolean onPreferenceClick(Preference preference) {
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// 处理账户点击事件
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if (!GTaskSyncService.isSyncing()) {
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if (TextUtils.isEmpty(defaultAccount)) {
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// 如果尚未设置账户,则展示选择账户对话框
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showSelectAccountAlertDialog();
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} else {
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// 如果已经设置账户,则展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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// 如果正在同步中,则展示无法更改账户的提示
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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); // 将账户偏好项添加到账户分类下
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}
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/**
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* 加载同步按钮,并根据同步状态设置其文本和点击事件。
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*/
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private void loadSyncButton() {
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Button syncButton = (Button) findViewById(R.id.preference_sync_button); // 获取同步按钮
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TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview); // 获取上次同步时间视图
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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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if (GTaskSyncService.isSyncing()) {
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syncButton.setText(getString(R.string.preferences_button_sync_cancel)); // 设置为取消同步文本
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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); // 设置点击事件为取消同步
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}
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});
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} else {
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syncButton.setText(getString(R.string.preferences_button_sync_immediately)); // 设置为立即同步文本
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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); // 设置点击事件为开始同步
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}
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});
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}
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syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); // 只有在设置了同步账户时才使能同步按钮
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// 根据同步状态设置上次同步时间的显示
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if (GTaskSyncService.isSyncing()) {
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lastSyncTimeView.setText(GTaskSyncService.getProgressString()); // 如果正在同步,显示进度信息
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lastSyncTimeView.setVisibility(View.VISIBLE); // 显示上次同步时间视图
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} else {
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long lastSyncTime = getLastSyncTime(this); // 获取上次同步时间
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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))); // 格式化并显示上次同步时间
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lastSyncTimeView.setVisibility(View.VISIBLE); // 显示上次同步时间视图
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} else {
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lastSyncTimeView.setVisibility(View.GONE); // 如果未同步过,则隐藏上次同步时间视图
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}
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}
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}
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// 下面的方法定义了各种UI刷新逻辑、账户管理、对话框显示以及同步操作等
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// ...
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/**
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* 刷新用户界面,加载账户偏好设置和同步按钮。
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*/
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private void refreshUI() {
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loadAccountPreference(); // 加载账户偏好设置
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loadSyncButton(); // 加载同步按钮
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}
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/**
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* 显示选择账户的对话框。
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* 该对话框列出了已连接的Google账户,并允许用户选择一个账户用于同步。
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* 如果没有账户,对话框将提供添加账户的选项。
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*/
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private void showSelectAccountAlertDialog() {
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// 创建对话框构建器并设置自定义标题
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AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
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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); // 移除默认的确定按钮
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// 获取当前设备上的Google账户
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Account[] accounts = getGoogleAccounts();
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String defAccount = getSyncAccountName(this); // 获取当前同步的账户名称
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mOriAccounts = accounts; // 保存原始账户列表
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mHasAddedAccount = false; // 标记是否已添加新账户
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if (accounts.length > 0) {
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// 创建账户选项并设置选中项
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CharSequence[] items = new CharSequence[accounts.length];
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final CharSequence[] itemMapping = items;
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int checkedItem = -1; // 记录默认选中的账户
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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;
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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,并为选中的账户执行同步操作
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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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setSyncAccount(itemMapping[which].toString());
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dialog.dismiss();
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refreshUI();
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}
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});
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}
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// 添加“添加账户”选项
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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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final AlertDialog dialog = dialogBuilder.show();
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// 点击“添加账户”执行添加账户操作
|
|
|
|
|
addAccountView.setOnClickListener(new View.OnClickListener() {
|
|
|
|
|
public void onClick(View v) {
|
|
|
|
|
mHasAddedAccount = true;
|
|
|
|
|
Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
|
|
|
|
|
intent.putExtra(AUTHORITIES_FILTER_KEY, new String[]{
|
|
|
|
|
"gmail-ls"
|
|
|
|
|
});
|
|
|
|
|
startActivityForResult(intent, -1);
|
|
|
|
|
dialog.dismiss();
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 显示更改账户确认对话框。
|
|
|
|
|
* 提供用户更改当前同步账户或取消更改的选择。
|
|
|
|
|
*/
|
|
|
|
|
private void showChangeAccountConfirmAlertDialog() {
|
|
|
|
|
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
|
|
|
|
|
|
|
|
|
|
// 设置自定义标题,包含当前同步账户名称
|
|
|
|
|
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
|
|
|
|
|
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
|
|
// 创建菜单项并设置点击事件
|
|
|
|
|
CharSequence[] menuItemArray = new CharSequence[]{
|
|
|
|
|
getString(R.string.preferences_menu_change_account),
|
|
|
|
|
getString(R.string.preferences_menu_remove_account),
|
|
|
|
|
getString(R.string.preferences_menu_cancel)
|
|
|
|
|
};
|
|
|
|
|
dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
|
|
|
|
|
public void onClick(DialogInterface dialog, int which) {
|
|
|
|
|
if (which == 0) {
|
|
|
|
|
// 选择更改账户,显示账户选择对话框
|
|
|
|
|
showSelectAccountAlertDialog();
|
|
|
|
|
} else if (which == 1) {
|
|
|
|
|
// 选择移除账户,执行移除操作并刷新UI
|
|
|
|
|
removeSyncAccount();
|
|
|
|
|
refreshUI();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
dialogBuilder.show();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 获取设备上的Google账户列表。
|
|
|
|
|
*
|
|
|
|
|
* @return Account[] 返回设备上所有类型为“com.google”的账户数组。
|
|
|
|
|
*/
|
|
|
|
|
private Account[] getGoogleAccounts() {
|
|
|
|
|
AccountManager accountManager = AccountManager.get(this);
|
|
|
|
|
return accountManager.getAccountsByType("com.google");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置同步账户信息。
|
|
|
|
|
* 如果当前账户与传入账户不一致,则更新SharedPreferences中的账户信息,并清理本地相关的gtask信息。
|
|
|
|
|
*
|
|
|
|
|
* @param account 需要设置的账户名
|
|
|
|
|
*/
|
|
|
|
|
private void setSyncAccount(String account) {
|
|
|
|
|
// 检查当前账户是否与传入账户名一致,不一致则更新账户信息
|
|
|
|
|
if (!getSyncAccountName(this).equals(account)) {
|
|
|
|
|
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
|
|
|
|
|
SharedPreferences.Editor editor = settings.edit();
|
|
|
|
|
// 如果账户名非空,则保存账户名,否则清除账户名
|
|
|
|
|
if (account != null) {
|
|
|
|
|
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account);
|
|
|
|
|
} else {
|
|
|
|
|
editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
|
|
|
|
|
}
|
|
|
|
|
editor.commit();
|
|
|
|
|
|
|
|
|
|
// 清理上次同步时间
|
|
|
|
|
setLastSyncTime(this, 0);
|
|
|
|
|
|
|
|
|
|
// 清理本地相关的gtask信息
|
|
|
|
|
new Thread(new Runnable() {
|
|
|
|
|
public void run() {
|
|
|
|
|
ContentValues values = new ContentValues();
|
|
|
|
|
values.put(NoteColumns.GTASK_ID, "");
|
|
|
|
|
values.put(NoteColumns.SYNC_ID, 0);
|
|
|
|
|
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
|
|
|
|
|
}
|
|
|
|
|
}).start();
|
|
|
|
|
|
|
|
|
|
// 显示设置成功的提示信息
|
|
|
|
|
Toast.makeText(NotesPreferenceActivity.this,
|
|
|
|
|
getString(R.string.preferences_toast_success_set_accout, account),
|
|
|
|
|
Toast.LENGTH_SHORT).show();
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 移除同步账户信息。
|
|
|
|
|
* 清除SharedPreferences中的账户信息和上次同步时间,并清理本地相关的gtask信息。
|
|
|
|
|
*/
|
|
|
|
|
private void removeSyncAccount() {
|
|
|
|
|
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
|
|
|
|
|
SharedPreferences.Editor editor = settings.edit();
|
|
|
|
|
// 如果存在账户信息,则移除
|
|
|
|
|
if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
|
|
|
|
|
editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME);
|
|
|
|
|
}
|
|
|
|
|
// 如果存在上次同步时间信息,则移除
|
|
|
|
|
if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
|
|
|
|
|
editor.remove(PREFERENCE_LAST_SYNC_TIME);
|
|
|
|
|
}
|
|
|
|
|
editor.commit();
|
|
|
|
|
|
|
|
|
|
// 清理本地相关的gtask信息
|
|
|
|
|
new Thread(new Runnable() {
|
|
|
|
|
public void run() {
|
|
|
|
|
ContentValues values = new ContentValues();
|
|
|
|
|
values.put(NoteColumns.GTASK_ID, "");
|
|
|
|
|
values.put(NoteColumns.SYNC_ID, 0);
|
|
|
|
|
getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null);
|
|
|
|
|
}
|
|
|
|
|
}).start();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 获取当前同步账户名。
|
|
|
|
|
* 从SharedPreferences中获取存储的账户名,默认为空字符串。
|
|
|
|
|
*
|
|
|
|
|
* @param context 上下文
|
|
|
|
|
* @return 同步账户名
|
|
|
|
|
*/
|
|
|
|
|
public static String getSyncAccountName(Context context) {
|
|
|
|
|
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
|
|
|
|
Context.MODE_PRIVATE);
|
|
|
|
|
return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, "");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置上次同步的时间。
|
|
|
|
|
* 将指定的时间保存到SharedPreferences中。
|
|
|
|
|
*
|
|
|
|
|
* @param context 上下文
|
|
|
|
|
* @param time 上次同步的时间戳
|
|
|
|
|
*/
|
|
|
|
|
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();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 获取上次同步的时间。
|
|
|
|
|
* 从SharedPreferences中获取上次同步的时间戳,默认为0。
|
|
|
|
|
*
|
|
|
|
|
* @param context 上下文
|
|
|
|
|
* @return 上次同步的时间戳
|
|
|
|
|
*/
|
|
|
|
|
public static long getLastSyncTime(Context context) {
|
|
|
|
|
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
|
|
|
|
Context.MODE_PRIVATE);
|
|
|
|
|
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 广播接收器类,用于接收gtask同步相关的广播消息,并据此刷新UI。
|
|
|
|
|
*/
|
|
|
|
|
private class GTaskReceiver extends BroadcastReceiver {
|
|
|
|
|
|
|
|
|
|
@Override
|
|
|
|
|
public void onReceive(Context context, Intent intent) {
|
|
|
|
|
refreshUI();
|
|
|
|
|
// 如果广播消息表明正在同步,则更新UI显示的同步状态信息
|
|
|
|
|
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));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 处理选项菜单项的选择事件。
|
|
|
|
|
*
|
|
|
|
|
* @param item 选中的菜单项
|
|
|
|
|
* @return 如果事件已处理,则返回true;否则返回false。
|
|
|
|
|
* 处理菜单项的选择事件,例如处理返回按钮点击。
|
|
|
|
|
*/
|
|
|
|
|
public boolean onOptionsItemSelected(MenuItem item) {
|
|
|
|
|
switch (item.getItemId()) {
|
|
|
|
|
case android.R.id.home:
|
|
|
|
|
// 当选择返回按钮时,启动NotesListActivity并清除当前活动栈顶以上的所有活动
|
|
|
|
|
Intent intent = new Intent(this, NotesListActivity.class);
|
|
|
|
|
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
|
|
|
|
|
startActivity(intent);
|
|
|
|
|
launchNotesListActivity(); // 返回到笔记列表页面
|
|
|
|
|
return true;
|
|
|
|
|
default:
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// 其他方法省略...
|
|
|
|
|
}
|