An android demo which can measure the distance from user to something while taking photos，just like smart distance ##Download demo apk ##Thanks smart distance ##How to use

1. Input the real height of the target you wanna to measure
2. Surround the target with the green lines
3. Get the distance ! (for reference only)

##使用方法:

1. 输入目标物体的真实高度
2. 动动手指用屏幕上的绿线圈住目标物体
3. 从屏幕上查看距离（存在一定误差，仅供参考）

##感谢smart distance给的灵感