開發者-針對台灣 7天鑑賞期-code如何寫來保護你的APP ?

有試用版,貪小便宜的還是玩7天再退,順便Copy再貼到網路上. 所以防小人不防居子. 一切靠自己.
code如何寫來保護你的APP?請大家集思廣議.
畢竟台灣7天鑑賞期是一個商業行為,跳腳也沒捨用,想辦法保住營收比教重要.
1.不上架台灣.鎖Operator's ID 防盜
String operatorName = telephonyManager.getNetworkOperatorName();
/*
* 46601=Far EasTone Telecoms;Taiwan 46606=TUNTEX Telecom;Taiwan
* 46688=KG Telecom;Taiwan 46692=Chunghwa Telecom;Taiwan 46693=Mobitai
* Communications;Taiwan 46697=Pacific Cellular TWNGSM;Taiwan
* 46699=TransAsia Telecoms;Taiwan 01,02,06,11,88,89,92,93,97 46601 =
* Far EasTone GSM 900/1800 Telecoms - Taiwan 46688 = KG Telecom -
* Taiwan 46693 = Mobitai Communications - Taiwan 46689 = T3G - Taiwan
* 46697 = Pacific Cellular GSM 1800 - Taiwan 46606 = TUNTEX Telecom -
* Taiwan
*/
if (operator.equalsIgnoreCase("46692")) // cht
.....
2.實做 receiver, handle package add and remove, 記錄手機使用者資訊
<receiver android:name="xxx.xxx.xxx" >
<intent-filter>
<action android:name="android.intent.action.PACKAGE_ADDED"/>
<action android:name="android.intent.action.PACKAGE_REMOVED"/>
<data android:scheme="package"/>
</intent-filter>
</receiver>
和台灣/全球開發者同仁建立拒絕下載黑名單.
3.鎖Operator's ID,台灣user7天後才開放前全部功能?



請大家發揮一下創意或貢獻您的code.