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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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package net.micode.notes.ui;
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import android.accounts.Account;
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import android.accounts.AccountManager;
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import android.app.ActionBar;
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import android.app.AlertDialog;
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import android.content.BroadcastReceiver;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.SharedPreferences;
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import android.os.Bundle;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceClickListener;
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import android.preference.PreferenceActivity;
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import android.preference.PreferenceCategory;
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import android.text.TextUtils;
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import android.text.format.DateFormat;
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import android.view.LayoutInflater;
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import android.view.Menu;
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import android.view.MenuItem;
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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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public static final String PREFERENCE_NAME = "notes_preferences"; // 偏好设置文件名称
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public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; // 同步账户名称偏好设置
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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设置
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public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; // 背景颜色偏好设置
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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"; // 账户类型过滤器键
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private PreferenceCategory mAccountCategory; // 账户类别设置
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private GTaskReceiver mReceiver; // 广播接收器
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private Account[] mOriAccounts; // 原始账户列表
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private boolean mHasAddedAccount; // 是否添加了账户标志
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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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/* 使用应用图标作为导航 */
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getActionBar().setDisplayHomeAsUpEnabled(true); // 显示向上按钮,允许导航回到上级界面
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addPreferencesFromResource(R.xml.preferences); // 加载偏好设置资源文件
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mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); // 获取账户设置类别
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mReceiver = new GTaskReceiver(); // 创建广播接收器
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IntentFilter filter = new IntentFilter(); // 创建意图过滤器
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filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); // 监听同步服务广播
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registerReceiver(mReceiver, filter); // 注册广播接收器
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mOriAccounts = null; // 初始化原始账户列表
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View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); // 加载自定义头部视图
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getListView().addHeaderView(header, null, true); // 将头部视图添加到列表视图中
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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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// 如果用户添加了新的账户,需要自动设置同步账户
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if (mHasAddedAccount) {
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Account[] accounts = getGoogleAccounts(); // 获取Google账户列表
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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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setSyncAccount(accountNew.name); // 设置同步账户为新添加的账户
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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UI界面
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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
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}
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super.onDestroy();
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}
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private void loadAccountPreference() {
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mAccountCategory.removeAll(); // 清除当前账户类别下的所有偏好设置项
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Preference accountPref = new Preference(this); // 创建账户偏好设置项
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final String defaultAccount = getSyncAccountName(this); // 获取当前同步的账户名称
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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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if (!GTaskSyncService.isSyncing()) { // 如果没有正在同步
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if (TextUtils.isEmpty(defaultAccount)) {
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// 第一次设置账户
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showSelectAccountAlertDialog(); // 显示选择账户对话框
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} else {
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// 如果已经设置了账户,需要提示用户风险
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showChangeAccountConfirmAlertDialog(); // 显示更换账户确认对话框
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}
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} else {
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Toast.makeText(NotesPreferenceActivity.this,
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R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) // 显示不能更改账户的提示
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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); // 添加账户偏好设置项到类别中
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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); // 获取同步状态文本视图
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// 设置按钮状态
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if (GTaskSyncService.isSyncing()) {
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syncButton.setText(getString(R.string.preferences_button_sync_cancel)); // 设置为取消同步按钮
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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); // 取消同步操作
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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)); // 设置为立即同步按钮
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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); // 启动同步操作
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}
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});
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}
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syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); // 如果没有账户,禁用同步按钮
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// 设置最后同步时间
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if (GTaskSyncService.isSyncing()) {
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lastSyncTimeView.setText(GTaskSyncService.getProgressString()); // 显示当前同步进度
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lastSyncTimeView.setVisibility(View.VISIBLE);
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} else {
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long lastSyncTime = getLastSyncTime(this); // 获取最后同步时间
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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))); // 显示最后同步时间
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lastSyncTimeView.setVisibility(View.VISIBLE);
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} else {
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lastSyncTimeView.setVisibility(View.GONE); // 如果没有同步记录,隐藏显示
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}
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}
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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(); // 加载同步按钮和状态
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}
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private void showSelectAccountAlertDialog() {
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AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); // 创建对话框构建器
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View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); // 加载对话框标题布局
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TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); // 获取标题文本
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titleTextView.setText(getString(R.string.preferences_dialog_select_account_title)); // 设置标题文本
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TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); // 获取副标题文本
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subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips)); // 设置副标题文本
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dialogBuilder.setCustomTitle(titleView); // 设置自定义标题
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dialogBuilder.setPositiveButton(null, null); // 设置空的正面按钮
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Account[] accounts = getGoogleAccounts(); // 获取Google账户列表
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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; // 标记未添加账户
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if (accounts.length > 0) {
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CharSequence[] items = new CharSequence[accounts.length]; // 创建账户列表项
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final CharSequence[] itemMapping = items;
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int checkedItem = -1; // 默认没有选中项
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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; // 如果账户与默认账户匹配,设置为选中
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}
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items[index++] = account.name; // 填充账户列表项
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}
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dialogBuilder.setSingleChoiceItems(items, checkedItem, // 设置单选列表
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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()); // 设置选中的账户为同步账户
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dialog.dismiss(); // 关闭对话框
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refreshUI(); // 刷新UI
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}
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});
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}
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View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); // 加载添加账户视图
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dialogBuilder.setView(addAccountView); // 设置添加账户视图
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final AlertDialog dialog = dialogBuilder.show(); // 显示对话框
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addAccountView.setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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mHasAddedAccount = true; // 标记账户已添加
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Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); // 启动添加账户设置页面
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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); // 启动设置页面
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dialog.dismiss(); // 关闭对话框
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}
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});
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}
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private void showChangeAccountConfirmAlertDialog() {
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AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); // 创建对话框构建器
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View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); // 加载对话框标题布局
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TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); // 获取标题文本
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titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
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getSyncAccountName(this))); // 设置标题为当前同步账户
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TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); // 获取副标题文本
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subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg)); // 设置副标题为警告信息
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dialogBuilder.setCustomTitle(titleView); // 设置自定义标题
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CharSequence[] menuItemArray = new CharSequence[] { // 设置菜单项
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getString(R.string.preferences_menu_change_account),
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getString(R.string.preferences_menu_remove_account),
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getString(R.string.preferences_menu_cancel)
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};
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dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
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public void onClick(DialogInterface dialog, int which) {
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if (which == 0) {
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showSelectAccountAlertDialog(); // 显示选择账户对话框
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} else if (which == 1) {
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removeSyncAccount(); // 移除同步账户
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refreshUI(); // 刷新UI
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}
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}
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});
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dialogBuilder.show(); // 显示对话框
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}
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private Account[] getGoogleAccounts() {
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AccountManager accountManager = AccountManager.get(this); // 获取账户管理器
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return accountManager.getAccountsByType("com.google"); // 获取Google账户
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}
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private void setSyncAccount(String account) {
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if (!getSyncAccountName(this).equals(account)) { // 如果当前同步账户与新账户不同
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SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); // 获取共享偏好设置
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SharedPreferences.Editor editor = settings.edit(); // 获取编辑器
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if (account != null) {
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editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); // 保存新账户名称
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} else {
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editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); // 清空账户名称
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}
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editor.commit(); // 提交更改
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// 清除最后同步时间
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setLastSyncTime(this, 0);
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// 清除本地与gtask相关的信息
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new Thread(new Runnable() {
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public void run() {
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ContentValues values = new ContentValues(); // 创建内容值
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values.put(NoteColumns.GTASK_ID, ""); // 清空任务ID
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values.put(NoteColumns.SYNC_ID, 0); // 清空同步ID
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getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); // 更新数据库
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}
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}).start();
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Toast.makeText(NotesPreferenceActivity.this,
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getString(R.string.preferences_toast_success_set_accout, account), // 显示设置账户成功的提示
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Toast.LENGTH_SHORT).show();
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}
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}
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private void removeSyncAccount() {
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SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); // 获取共享偏好设置
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SharedPreferences.Editor editor = settings.edit(); // 获取编辑器
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if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) {
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editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME); // 移除同步账户名称
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}
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if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) {
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editor.remove(PREFERENCE_LAST_SYNC_TIME); // 移除最后同步时间
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}
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editor.commit(); // 提交更改
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// 清除本地与gtask相关的信息
|
||||
new Thread(new Runnable() {
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||||
public void run() {
|
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ContentValues values = new ContentValues(); // 创建内容值
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||||
values.put(NoteColumns.GTASK_ID, ""); // 清空任务ID
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values.put(NoteColumns.SYNC_ID, 0); // 清空同步ID
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getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); // 更新数据库
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||||
}
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||||
}).start();
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||||
}
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||||
|
||||
public static String getSyncAccountName(Context context) {
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SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
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Context.MODE_PRIVATE); // 获取共享偏好设置
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return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); // 返回同步账户名称
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}
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public static void setLastSyncTime(Context context, long time) {
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SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
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Context.MODE_PRIVATE); // 获取共享偏好设置
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||||
SharedPreferences.Editor editor = settings.edit(); // 获取编辑器
|
||||
editor.putLong(PREFERENCE_LAST_SYNC_TIME, time); // 设置最后同步时间
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editor.commit(); // 提交更改
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||||
}
|
||||
|
||||
public static long getLastSyncTime(Context context) {
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SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
|
||||
Context.MODE_PRIVATE); // 获取共享偏好设置
|
||||
return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); // 返回最后同步时间
|
||||
}
|
||||
|
||||
private class GTaskReceiver extends BroadcastReceiver {
|
||||
|
||||
@Override
|
||||
public void onReceive(Context context, Intent intent) {
|
||||
refreshUI(); // 刷新UI
|
||||
if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) {
|
||||
TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); // 获取同步状态视图
|
||||
syncStatus.setText(intent
|
||||
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG)); // 显示同步进度
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
public boolean onOptionsItemSelected(MenuItem item) {
|
||||
switch (item.getItemId()) {
|
||||
case android.R.id.home:
|
||||
Intent intent = new Intent(this, NotesListActivity.class); // 创建返回到笔记列表的意图
|
||||
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); // 设置清除栈标志
|
||||
startActivity(intent); // 启动活动
|
||||
return true;
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in new issue