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gaoxiaorui
Author | SHA1 | Date |
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gaoxiaorui | bb3ff5478d | 2 weeks ago |
gaoxiaorui | 81edc80cdc | 2 weeks ago |
gaoxiaorui | 218be1687f | 2 weeks ago |
gaoxiaorui | 58f5d8a5cb | 2 weeks ago |
gaoxiaorui | ca6348c628 | 2 weeks ago |
gaoxiaorui | 8f480402ca | 2 months ago |
gaoxiaorui | e184839143 | 2 months ago |
gaoxiaorui | 0f977e3717 | 2 months ago |
gaoxiaorui | f7704b28ac | 2 months ago |
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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.app.Activity;// 活动的基类
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import android.app.AlertDialog;// 用于创建警告对话框
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import android.content.Context; // 提供访问应用程序特定资源的上下文
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import android.content.DialogInterface; // 对话框交互接口
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import android.content.Intent; // 创建启动新活动的意图
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import android.media.AudioManager; // 管理音频设置
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import android.media.MediaPlayer; // 播放音频文件
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import android.media.RingtoneManager; // 访问系统铃声
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import android.net.Uri; // 表示URI
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import android.os.Bundle;// 在活动之间传递数据
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import android.os.PowerManager; // 管理电源状态
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import android.provider.Settings; // 系统设置
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import android.view.Window; // 窗口管理
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import android.view.WindowManager;// 管理窗口
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import net.micode.notes.R; // 导入资源引用
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import net.micode.notes.data.Notes; // 导入笔记数据模型
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import net.micode.notes.tool.DataUtils; // 数据操作的工具函数
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import java.io.IOException; // 处理IO异常
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public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
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private long mNoteId;
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// 笔记的唯一标识
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private String mSnippet;
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// 笔记的内容片段
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private static final int SNIPPET_PREW_MAX_LEN = 60;
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// 内容片段的最大长度
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MediaPlayer mPlayer;
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// 媒体播放器,用于播放警报音
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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// 请求无标题窗口
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final Window win = getWindow();
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// 设置窗口标志,使其在锁屏时可见
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win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
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// 如果屏幕未亮,则设置相关标志
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if (!isScreenOn()) {
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win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
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// 保持屏幕常亮
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| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
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// 打开屏幕
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| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
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// 允许锁定屏幕
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| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
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// 窗口布局插入装饰
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}
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Intent intent = getIntent();
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// 获取启动活动的意图
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try {
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// 从意图中提取笔记ID
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mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
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// 根据笔记ID获取内容片段
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mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
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// 如果内容片段超过最大长度,则进行截断处理
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mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
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SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
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: mSnippet;
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} catch (IllegalArgumentException e) {
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e.printStackTrace(); // 打印异常堆栈信息
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return; // 发生异常时返回
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}
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mPlayer = new MediaPlayer(); // 初始化媒体播放器
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// 检查笔记是否在数据库中可见
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if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
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showActionDialog(); // 显示操作对话框
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playAlarmSound(); // 播放警报声音
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} else {
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finish();
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// 如果不可见,则结束活动
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}
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}
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// 检查屏幕是否开启的方法
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private boolean isScreenOn() {
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PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
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return pm.isScreenOn();
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// 返回屏幕状态
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}
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}
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private void playAlarmSound() {
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// 获取默认的闹钟铃声URI
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Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
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// 获取影响静音模式的流类型
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int silentModeStreams = Settings.System.getInt(getContentResolver(),
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Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
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// 检查静音模式下是否包括闹钟流
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if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
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mPlayer.setAudioStreamType(silentModeStreams);
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// 设置音频流类型为静音模式
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} else {
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mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
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// 设置为闹钟流
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}
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try {
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// 设置数据源为铃声URI
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mPlayer.setDataSource(this, url);
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mPlayer.prepare();
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// 准备播放器
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mPlayer.setLooping(true);
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// 设置循环播放
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mPlayer.start();
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// 开始播放
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} catch (IllegalArgumentException e) {
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e.printStackTrace(); // 打印异常信息
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} catch (SecurityException e) {
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e.printStackTrace(); // 打印异常信息
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} catch (IllegalStateException e) {
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e.printStackTrace(); // 打印异常信息
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} catch (IOException e) {
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e.printStackTrace(); // 打印异常信息
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}
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}
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private void showActionDialog() {
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AlertDialog.Builder dialog = new AlertDialog.Builder(this);
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dialog.setTitle(R.string.app_name);
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// 设置对话框标题
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dialog.setMessage(mSnippet);
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// 设置对话框消息内容
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dialog.setPositiveButton(R.string.notealert_ok, this);
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// 设置确认按钮
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// 如果屏幕已开启,设置取消按钮
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if (isScreenOn()) {
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dialog.setNegativeButton(R.string.notealert_enter, this);
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}
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dialog.show().setOnDismissListener(this);
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// 显示对话框并设置消失监听器
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}
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public void onClick(DialogInterface dialog, int which) {
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switch (which) {
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case DialogInterface.BUTTON_NEGATIVE:
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// 点击取消按钮时,启动编辑笔记活动
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Intent intent = new Intent(this, NoteEditActivity.class);
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intent.setAction(Intent.ACTION_VIEW);
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intent.putExtra(Intent.EXTRA_UID, mNoteId);
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// 传递笔记ID
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startActivity(intent);
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// 启动活动
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break;
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default:
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break; // 默认情况不处理
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}
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}
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public void onDismiss(DialogInterface dialog) {
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stopAlarmSound();
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// 停止播放警报声音
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finish();
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// 结束当前活动
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}
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private void stopAlarmSound() {
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if (mPlayer != null) {
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mPlayer.stop();
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// 停止播放
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mPlayer.release();
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// 释放媒体播放器资源
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mPlayer = null;
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// 清空播放器引用
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}
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}
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@ -0,0 +1,118 @@
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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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// 导入所需的类
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import java.util.Calendar; // 导入日历类,用于日期和时间的管理
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import net.micode.notes.R; // 导入资源类,用于访问字符串资源等
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import net.micode.notes.ui.DateTimePicker; // 导入自定义的日期时间选择器类
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import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener; // 导入日期时间变化监听器接口
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import android.app.AlertDialog; // 导入对话框类,用于创建对话框
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import android.content.Context; // 导入上下文类,用于获取应用环境信息
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import android.content.DialogInterface; // 导入对话框接口类,用于处理对话框事件
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import android.content.DialogInterface.OnClickListener; // 导入对话框点击事件监听器接口
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import android.text.format.DateFormat; // 导入日期格式化类,用于格式化日期和时间
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import android.text.format.DateUtils; // 导入日期工具类,提供日期格式化和显示功能
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// 自定义日期时间选择对话框类
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public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
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private Calendar mDate = Calendar.getInstance();
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// 用于存储当前选中的日期和时间
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private boolean mIs24HourView;
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// 标识是否使用24小时制
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private OnDateTimeSetListener mOnDateTimeSetListener;
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// 日期时间设置的监听器
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private DateTimePicker mDateTimePicker;
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// 日期时间选择器实例
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// 日期时间设置监听器接口
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public interface OnDateTimeSetListener {
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void OnDateTimeSet(AlertDialog dialog, long date);
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// 设置日期时间的回调方法
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}
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// 构造函数,初始化对话框并设置初始日期
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public DateTimePickerDialog(Context context, long date) {
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super(context); // 调用父类构造函数
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mDateTimePicker = new DateTimePicker(context);
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// 创建日期时间选择器
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setView(mDateTimePicker);
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// 将选择器设置为对话框的视图
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// 设置日期时间变化的监听器
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mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
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public void onDateTimeChanged(DateTimePicker view, int year, int month,
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int dayOfMonth, int hourOfDay, int minute) {
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// 更新日历对象中的年、月、日、小时和分钟
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mDate.set(Calendar.YEAR, year);
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mDate.set(Calendar.MONTH, month);
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mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
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mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
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mDate.set(Calendar.MINUTE, minute);
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updateTitle(mDate.getTimeInMillis());
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// 更新对话框标题
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}
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});
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mDate.setTimeInMillis(date); // 设置初始日期时间
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mDate.set(Calendar.SECOND, 0); // 将秒数设为0
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mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
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// 设置选择器的当前日期时间
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setButton(context.getString(R.string.datetime_dialog_ok), this);
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// 设置“确定”按钮
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setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
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// 设置“取消”按钮
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set24HourView(DateFormat.is24HourFormat(this.getContext()));
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// 根据系统设置决定是否使用24小时制
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updateTitle(mDate.getTimeInMillis());
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// 初始化对话框标题
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}
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// 设置是否使用24小时制
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public void set24HourView(boolean is24HourView) {
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mIs24HourView = is24HourView; // 更新24小时制标识
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}
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// 设置日期时间设置的监听器
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public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
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mOnDateTimeSetListener = callBack; // 保存监听器
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}
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// 更新对话框的标题,显示当前选中的日期和时间
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private void updateTitle(long date) {
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// 设置显示格式,包括年份、日期和时间
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int flag =
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DateUtils.FORMAT_SHOW_YEAR | // 显示年份
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DateUtils.FORMAT_SHOW_DATE | // 显示日期
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DateUtils.FORMAT_SHOW_TIME; // 显示时间
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flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_12HOUR;
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// 根据设置选择小时制
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setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
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// 格式化日期时间并设置为对话框标题
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}
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// 点击事件处理
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public void onClick(DialogInterface arg0, int arg1) {
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// 如果设置了监听器,则调用其方法并传递当前时间戳
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if (mOnDateTimeSetListener != null) {
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mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
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}
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}
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}
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