> For the complete documentation index, see [llms.txt](https://devbook.site/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://devbook.site/4-deng-lu-ye-shi-zhan/deng-lu-ye-zai-android-gong-cheng-zhong-de-dai-ma.md).

# 第3节：登录页在Android工程中的代码