我正在尝试以下短信示例:http://mobiforge.com/developing/story/sms-messaging-android但如果我尝试发送消息，我会收到以下异常。Exception:02-0712:38:15.447:ERROR/ActivityThread(839):Activitycom.micro.MyTesthasleakedIntentReceivercom.micro.MyTest$1@435a0c70thatwasoriginallyregisteredhere.AreyoumissingacalltounregisterReceiver()?02-0