Commonsware的WakefulIntentService效果很好,但有些东西我不太明白。下面是该服务的核心-source的精简版:classWISextendsIntentService{privatestaticfinalStringNAME=WIS.class.getName()+".Lock";privatestaticvolatileWakeLocklockStatic=null;synchronizedprivatestaticPowerManager.WakeLockgetLock(Contextcontext){if(lockStatic==null){Power