android Alarm闹钟发送广播播放音乐

package com.yqy.yqy_alarm;import java.util.Calendar;import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.TimePickerDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.text.style.ImageSpan;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;public class MainActivity extends Activity {private TextView tv = null;  private Button setTime,cancelTime;  private Calendar c = null;  @Override  public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);String alarm = getIntent().getStringExtra("alarm");if(alarm != null&&alarm.equals("alarm")){stopService(new Intent("com.yqy.yqy_alarm.MUSIC"));  }tv = (TextView)findViewById(R.id.tv);  setTime = (Button)findViewById(R.id.setAlarm);  cancelTime = (Button)findViewById(R.id.cancelAlarm);  //得到日历实例，主要是为了下面的获取时间  c = Calendar.getInstance();  setTime.setOnClickListener(new Button.OnClickListener()  {  @Override  public void onClick(View arg0) {  c.setTimeInMillis(System.currentTimeMillis());  int hour = c.get(Calendar.HOUR_OF_DAY);  int minute = c.get(Calendar.MINUTE);  new TimePickerDialog(MainActivity.this, minute, new TimePickerDialog.OnTimeSetListener() {  @Override  public void onTimeSet(TimePicker view, int hourOfDay, int minute) {  //是设置日历的时间，主要是让日历的年月日和当前同步  c.setTimeInMillis(System.currentTimeMillis());  //设置小时分钟，秒和毫秒都设置为0  c.set(Calendar.HOUR_OF_DAY, hourOfDay);  c.set(Calendar.MINUTE, minute);  c.set(Calendar.SECOND, 0);  c.set(Calendar.MILLISECOND, 0);  int requestCode = 0;//闹钟的唯一标示Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);  intent.putExtra("requestCode", requestCode);PendingIntent pi = PendingIntent.getBroadcast(MainActivity.this, requestCode, intent, 0);  //得到AlarmManager实例  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),   
//                              (24*60*60*1000), pi);  
//                        am.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(),   
//                                1000*60*5, 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"));  }  });  }  
}  

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;@Overridepublic void onReceive(Context context, Intent arg1) {requestCode = arg1.getIntExtra("requestCode", 0);NotificationManager nm = (NotificationManager)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);  }}

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();      }}  }