android Alarm 闹钟发送广播播放音乐，【大牛疯狂教学

AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);

//根据当前时间预设一个警报

am.set(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), pi);

/**

• 第一个参数是警报类型；第二个参数是第一次执行的延迟时间，可以延迟，也可以马上执行；第三个参数是重复周期为一天

• 这句话的意思是设置闹铃重复周期，也就是执行警报的间隔时间

*/

// am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+(60*1000),

// (246060*1000), pi);

// am.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(),

// 1000605, pi);

String msg = hourOfDay+":"+minute;

tv.setText("当前设置的闹钟时间："+msg);

}

}, hour, minute, true).show();

//上面的 TimePickerDialog 中的 5 个参数参考：http://blog.csdn.net/yang_hui1986527/article/details/6839342

}

});

cancelTime.setOnClickListener(new Button.OnClickListener()

{

@Override

public void onClick(View v) {

Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);

PendingIntent pi = PendingIntent.getBroadcast(MainActivity.this, 0,

intent, 0);

AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);

//取消警报

am.cancel(pi);

tv.setText("闹钟取消");

//取消闹钟的同时取消音乐

stopService(new Intent("com.yqy.yqy_alarm.MUSIC"));

}

});

}

}

AlarmReceiver

package com.yqy.yqy_alarm;

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

public class AlarmReceiver extends BroadcastReceiver {

Intent intent;

int requestCode = -1;

@Override

public void onReceive(Context context, Intent arg1) {

requestCode = arg1.getIntExtra("requestCode", 0);

NotificationManager nm = (NotificationManage

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r)context.getSystemService(Context.NOTIFICATION_SERVICE);

Notification n = new Notification(R.drawable.ic_launcher, "Hello,there!", System.currentTimeMillis());

n.flags = Notification.FLAG_AUTO_CANCEL;

intent = new Intent(context, MainActivity.class);

intent.putExtra("alarm", "alarm");

intent.setComponent(new ComponentName("com.yqy.yqy_alarm", "com.yqy.yqy_alarm.MainActivity"));

intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);//关键的一步，设置启动模式

PendingIntent contentIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);

n.setLatestEventInfo(

context,

"Hello,there!",

"Hello,there,I'm john.",

contentIntent);

nm.notify(R.string.app_name, n);

Toast.makeText(context, "闹钟时间到", Toast.LENGTH_SHORT).show();

intent = new Intent("com.yqy.yqy_alarm.MUSIC");

//启动 Service 播放音乐

context.stopService(new Intent("com.yqy.yqy_alarm.MUSIC"));

context.startService(intent);

}

}

MusicService

package com.yqy.yqy_alarm;

import android.app.Service;

import android.content.Intent;

import android.media.MediaPlayer;

import android.os.IBinder;

public class MusicService extends Service {

private MediaPlayer player;

@Override

public IBinder onBind(Intent intent) {

// TODO Auto-generated method stub

return null;

}

public void onStart(Intent intent, int startId)

{

super.onStart(intent, startId);

player = MediaPlayer.create(this, R.raw.beep);

player.setLooping(true);

player.start();

}

public void onDestroy()

{

super.onDestroy();

if(player != null){

player.stop();

}