本指南主要以Android應用程序的開發。它需要讀者通過Android的安全機制，其中包括許多關鍵的安全機制，以及指導你如何可以放心使用。雖然這是有針對性的對應用程序的開發，我希望它是為那些有意改變或擴展該平台的有用的背景。-This guide was written for developers of Android applications. It takes the reader through the security model of Android, including many of the key security mechanisms and how you can use them safely. While it is targeted towards applications developers, I hope it is useful background for those intending to change or extend the platform.