安装Android应用程序时创建一个密码
问题描述：
我要创建一个提示用户安装应用程序之前，也可以将应用程序卸载之前，必须输入密码以创建密码的应用程序。
我已经跑出如何去了解code想法。
请任何人都可以给我一个code以及如何去THIS_见识
我想AP preciate了不少。
I want to create an application that prompts the user to create a password before the application is installed and also before the application can be uninstalled the password must be entered. I have ran out of ideas on how to go about the code. Please can anyone give me a code and an insight on how to go about this_ I would appreciate a lot.