Edoc: Learn Programming - Apps on Google Play

the app is full of features - it can change the app design with only a json file - login - account info - tests - courses ... The goal is to make an app that have a possibility to change in the future only form one Json file. so good bye static widget, working from the design or any thing that my require to add variables to change it, every widget have to get all the values in the parameter and the root variable should instantiate from a Json file.