React Native: Firebase Authentication

Let’s create a login screen in react native with firebase authentication. we will do the following: Create a login screen…

Webpack Hot Module Reloading

Here we configure an react project for Webpack HMR. Our project has the following webpack.config.js file: As can be seen,…

Fill ListView with data from Http request

Here I show how to make a request for data for an android listview. To display the data in the…

Using HttpURLConnection for Android

When doing Http requests from Android, we use the HttpURLConnection class.  I will show how to use the class on a…

How to create a free iOS Development Provisioning Profile

You need: Xcode 7 Apple ID Steps Open Xcode go to Preferences -> Accounts Press “+” to add Apple ID…

Import Data from Excel Spreadsheet to MongoDB

Modules Needed: mongodb, excel-stream Install: How To:

nginx, node web server, reverse proxy on Ubuntu 14.04

In Ubuntu 14.04, by default, Nginx automatically starts when it is installed. Use these commands to manage the nginx process…

Introduction to Android Material Design – Part 5 – Adding Actions to AppBar

We first need to add a icon to the application that will appear in the app bar.   Here we…

Introduction to Android Material Design – Part 4 – Customize Toolbar

In part 3 I illustrated how to use the ToolBar as an app bar. Here I will illustrate how to…

MongoDB: Adding an Auto-Incremented id to existing documents

I have a collection of documents and want to add an auto-incremented number to them. Note All commands are run…