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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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//提醒关于许可证使用的相关问题
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package net.micode.notes.ui;
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import android.app.AlarmManager;//引入闹钟提醒包
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import android.app.PendingIntent;
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import android.content.BroadcastReceiver;//监听开机广播
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import android.content.ContentUris;//内容链接
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import android.content.Context;//文本
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import android.content.Intent;
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import android.database.Cursor;//目的和光标
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.NoteColumns;//便签栏
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public class AlarmInitReceiver extends BroadcastReceiver {//实现接受闹铃启动消息的功能
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private static final String [] PROJECTION = new String [] {//声明PROJECTION，每个元素包括id和提醒日期
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NoteColumns.ID,
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NoteColumns.ALERTED_DATE
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};
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private static final int COLUMN_ID = 0;
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private static final int COLUMN_ALERTED_DATE = 1;//设定ID和闹钟信息的初始值
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@Override
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public void onReceive(Context context, Intent intent) {//接收广播后的处理过程
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long currentDate = System.currentTimeMillis();//通过系统函数获了当前时间，存入currentDate变量。
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Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,//通过查找数据库中的标签内容，找到和当前系统时间相等的标签
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PROJECTION,
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NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,//获取的时间如果大于设置的时间的提醒项目
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new String[] { String.valueOf(currentDate) },
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null);//类型转换，将long类型的currentDate转变为String类
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if (c != null) {
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if (c.moveToFirst()) {//游标移动到开始位置
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do {
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long alertDate = c.getLong(COLUMN_ALERTED_DATE);//获取要提醒的日期
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Intent sender = new Intent(context, AlarmReceiver.class);//新建一个intent类来指向alarmreceiver 来传输数据
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sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));//设置数据为便签的uri和id
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PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);//创建一个广播组件，可以在手机广播栏显示相应内容
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AlarmManager alermManager = (AlarmManager) context//新建系统的闹钟服务
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.getSystemService(Context.ALARM_SERVICE);
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alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);//设置一系列需要传输的数据
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} while (c.moveToNext());//游标移动到下一位置
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}
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c.close();//关闭游标
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}
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}
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}
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