diff --git a/src/AlarmInitReceiver.java b/src/AlarmInitReceiver.java new file mode 100644 index 0000000..e80b4eb --- /dev/null +++ b/src/AlarmInitReceiver.java @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.ui; + +import android.app.AlarmManager; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ContentUris; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; + + +/** + * @projectName(项目名称): xiaomi label + * @package(包): ui + * @className(类名称): AlarmInitReceiver + * @description(类描述): 该类继承于BroadcastReceiver,实现了对闹钟信息的接受 + * @author(创建人): zhangchaoqun + * @createDate(创建时间): datetime + * @updateUser(修改人): user + * @updateDate(修改时间): datetime + * @updateRemark(修改备注): 说明本次修改内容 + * @version(版本): v1.0 + */ +public class AlarmInitReceiver extends BroadcastReceiver { + + //声明PROJECTION,每个元素包括id和提醒日期 + private static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.ALERTED_DATE + }; + + //定义ID和时间初始值 + private static final int COLUMN_ID = 0; + private static final int COLUMN_ALERTED_DATE = 1; + + @Override//表示重写 + /** + * @description 描述:通过context并且监听intent来对接受到的广播信息的处理 + * @param 参数1:context + * @param 参数2:intent + * @param 参数3: + * @return 返回值:void + * @author zhangchaoqun + */ + public void onReceive(Context context, Intent intent) { + //获取当前日期 + long currentDate = System.currentTimeMillis(); + //Cursor在这里的作用是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 + Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, + //将long类型的currentDate转变为String类 + new String[] { String.valueOf(currentDate) }, + null); + + /* + *当c != null时,将cursor移动到开始处,执行相关读取工作然后关闭cursor + */ + if (c != null) { + //移动到开始位置 + if (c.moveToFirst()) { + do { + //获取提醒日期 + long alertDate = c.getLong(COLUMN_ALERTED_DATE); + //通过定义一个intent方法与AlarmReceiver类建立连接 + Intent sender = new Intent(context, AlarmReceiver.class); + sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); + PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); + //新建闹钟管理者,使用系统的闹钟服务 + AlarmManager alermManager = (AlarmManager) context + .getSystemService(Context.ALARM_SERVICE); + //调用安卓的AlarmManager设置一个系统提醒事项设置提醒时间为便签中所存的alertDate + alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); + } while (c.moveToNext()); + } + //关闭游标 + c.close(); + } + } +}