Android-Alarm,定时闹钟

Android--Alarm,定时闹钟

package com.example.test0125;

import java.util.Calendar;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;

/**
 * Alarm,定时闹钟
 * @author ZLQ
 *
 */
public class TestAlarm extends Activity {
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		//通过 getSystemService取得服务
		AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

		Calendar ca = Calendar.getInstance();
		ca.set(Calendar.YEAR, 2013);
		ca.set(Calendar.MONTH, 0);
		ca.set(Calendar.DATE, 25);
		ca.set(Calendar.HOUR_OF_DAY, 16);
		ca.set(Calendar.MINUTE, 35);
		ca.set(Calendar.SECOND, 0);

		//取得1970-1-1 0:0 ~目标时间 之间的毫秒数
		long time = ca.getTimeInMillis();

		// PendingIntent升级版的Intent, 普通Intent是马上执行的
		// PendingIntent是在某一个事件触发了之后才去执行的一个Intent
		Intent in = new Intent();
		in.setClass(this, TestAG.class);
		
		//PendingIntent.getActivity(Context context, int requestCode, Intent intent, int flags)
		PendingIntent pen = PendingIntent.getActivity(this, 1, in, 0);

		//时间一到就会触发pen，跳转到TestAG.class
		am.set(AlarmManager.RTC_WAKEUP, time, pen);
		
		//设置隔过久时间再响
		// am.setRepeating(type, triggerAtTime, interval, operation)
		//取消响铃
		// am.cancel(operation)
	}
}