Ionic 2 project.
Prerequisite: For windows: Install all the required tools and configurations using Microsoft's windows-build-tools using npm install --global --production windows-build-tools from an elevated PowerShell or CMD.exe (run as Administrator). Reference: https://github.com/nodejs/node-gyp
Published at https://play.google.com/store/apps/details?id=com.patrickpu.activitytimer