teebarjunk/KoiPlugin

Android Plugin for Unity which let user take photo from gallery/camera

C#

KoiPlugin

An example of how to make Android Plugin for Unity

KoiJava: The actual plugin written in Java

KoiUnity: The sample Unity project which uses the plugin

Link to the Tutorial:

https://medium.com/@datdeveloper/how-to-make-android-plugin-for-unity-take-photo-from-camera-and-gallery-c12fe247c770