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README.md

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 # SmartCrutch-Android-App
-Android App for SmartCrutch-v4, written in Java
+[智能云拐杖(SmartCrutch-v4)](https://github.com/SZ2G-RoboticsClub/SmartCrutch-V4) Android App (Java ver.)  
+Maintainer: @DeltaZero
+
+## Features
+- 云端账号管理
+- 获取显示拐杖状态
+- 位置地图显示
+- 远程更改拐杖设置
+- Dark Mode 全支持
+- Material Based Design
+
+## Requirements
+Build env
+- Android studio 4.1+  
+
+Runtime env
+- Android 6.0+ (minSdkVersion 23)
+
+## Dependencies
+- material
+- appcompat
+- constraintlayout
+- moshi
+- okhttp3
+- amap.map2d