android 定時啟動\取消

[java]
 Intent intent = new Intent("cn.pocketdigi.update.alarm"); 
 intent.setClass(this, AlarmReceiver.class); 
 
 PendingIntent pi=PendingIntent.getBroadcast(this, 0, intent,0); 
 //設定一個PendingIntent對象，發送廣播  
 AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE); 
 //擷取AlarmManager對象  
// am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+3500, pi);//只執行一次  
 
  
 am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+3500, 10000, pi); //重複執行 

        Intent intent = new Intent("cn.pocketdigi.update.alarm");
        intent.setClass(this, AlarmReceiver.class);
 
        PendingIntent pi=PendingIntent.getBroadcast(this, 0, intent,0);
        //設定一個PendingIntent對象，發送廣播
        AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE);
        //擷取AlarmManager對象
       // am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+3500, pi);//只執行一次

       
        am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+3500, 10000, pi); //重複執行
 

[html]
<receiver android:name=".AlarmReceiver"> 
      <intent-filter> 
         <action android:name="cn.pocketdigi.update.alarm" /> 
     </intent-filter> 
 </receiver> 

       <receiver android:name=".AlarmReceiver">
             <intent-filter>
                <action android:name="cn.pocketdigi.update.alarm" />
            </intent-filter>
        </receiver>
 

[java]
public class AlarmReceiver extends BroadcastReceiver { 
    private static final String TAG = "AlarmReceiver"; 
    @Override 
    public void onReceive(Context context, Intent intent) { 
        // TODO Auto-generated method stub  
        Log.v(TAG, "收到廣播"); 
//      Intent it=new Intent(context,AlarmActivity.class);  
//      it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);  
//      context.startActivity(it);  
        //收到廣播後啟動Activity,簡單起見，直接就跳到了設定alarm的Activity  
                         //intent必須加上Intent.FLAG_ACTIVITY_NEW_TASK flag  
    } 
}  

public class AlarmReceiver extends BroadcastReceiver {
 private static final String TAG = "AlarmReceiver";
 @Override
 public void onReceive(Context context, Intent intent) {
  // TODO Auto-generated method stub
  Log.v(TAG, "收到廣播");
//  Intent it=new Intent(context,AlarmActivity.class);
//  it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//  context.startActivity(it);
  //收到廣播後啟動Activity,簡單起見，直接就跳到了設定alarm的Activity
                         //intent必須加上Intent.FLAG_ACTIVITY_NEW_TASK flag
 }
}
取消方式：

[java]
Intent intent = new Intent("cn.pocketdigi.update.alarm"); 
intent.setClass(this, AlarmReceiver.class); 
 
PendingIntent pi=PendingIntent.getBroadcast(this, 0, intent,0); 
AlarmManager alarm=(AlarmManager)getSystemService(ALARM_SERVICE); 
alarm.cancel(pi); 

        Intent intent = new Intent("cn.pocketdigi.update.alarm");
        intent.setClass(this, AlarmReceiver.class);
 
        PendingIntent pi=PendingIntent.getBroadcast(this, 0, intent,0);
        AlarmManager alarm=(AlarmManager)getSystemService(ALARM_SERVICE);
        alarm.cancel(pi);
 

另外一種intent方式

[java]
代碼  
    Intent intent =new Intent(Main.this, alarmreceiver.class); 
    intent.setAction("repeating"); 
    PendingIntent sender=PendingIntent 
        .getBroadcast(Main.this, 0, intent, 0); 
        //開始時間  
    long firstime=SystemClock.elapsedRealtime(); 
 
    AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE);　　//5秒一個周期，不停的發送廣播  
    am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP 
            , firstime, 5*1000, sender); 

代碼
    Intent intent =new Intent(Main.this, alarmreceiver.class);
    intent.setAction("repeating");
    PendingIntent sender=PendingIntent
        .getBroadcast(Main.this, 0, intent, 0);
        //開始時間
    long firstime=SystemClock.elapsedRealtime();

    AlarmManager am=(AlarmManager)getSystemService(ALARM_SERVICE);　　//5秒一個周期，不停的發送廣播
    am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP
            , firstime, 5*1000, sender);