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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.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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/**
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* 闹钟触发广播接收器
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* 核心功能:响应便签提醒闹钟触发事件
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* 工作流程:接收到闹钟触发广播后,启动提醒界面Activity
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* 设计特点:
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* - 支持在后台启动Activity(添加NEW_TASK标志)
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* - 传递完整意图参数至提醒界面
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*/
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public class AlarmReceiver extends BroadcastReceiver {
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/**
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* 广播接收处理逻辑
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* @param context 应用上下文(用于启动Activity)
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* @param intent 触发广播的意图(包含便签URI等参数)
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*/
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@Override
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public void onReceive(Context context, Intent intent) {
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// 构建提醒界面启动意图
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Intent alertIntent = new Intent(intent); // 复制原始意图参数
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alertIntent.setClass(context, AlarmAlertActivity.class); // 指定启动提醒界面
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// 添加必要标志位确保Activity正确启动
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alertIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // 在新任务栈中启动
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// 启动提醒界面(由于在广播中启动Activity,必须使用NEW_TASK标志)
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context.startActivity(alertIntent);
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}
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} |