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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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// 包声明，表明该类所在的包名为net.micode.notes.ui
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package net.micode.notes.ui;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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// AlarmReceiver类继承自BroadcastReceiver，用于接收广播消息，并在接收到广播后进行相应的操作，这里主要是启动相关的Activity
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public class AlarmReceiver extends BroadcastReceiver {
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// 重写BroadcastReceiver的onReceive方法，当该广播接收器接收到广播时，此方法会被调用，用于处理具体的业务逻辑
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@Override
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public void onReceive(Context context, Intent intent) {
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// 将传入的Intent的目标组件设置为AlarmAlertActivity.class，也就是指定当这个广播触发后，要启动的Activity是AlarmAlertActivity
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intent.setClass(context, AlarmAlertActivity.class);
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// 给Intent添加一个标志位，FLAG_ACTIVITY_NEW_TASK，表示以新任务的形式启动Activity。
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// 这通常是在从广播接收器启动Activity时需要添加的，因为广播接收器没有自己的任务栈，需要明确告知系统以新任务来启动Activity
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intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
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// 通过传入的Context对象启动设置好的Activity，使得应用能够从接收到广播的这个逻辑跳转到对应的AlarmAlertActivity，展示闹钟提醒相关的界面等内容
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context.startActivity(intent);
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}
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} |
