John da Eira

John da Eira

Hayward, CA

12,486

Total Points

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

Skills & Experience

  • Company

    Mobile PC Services

  • Job Title

    I.T. Consultant

  • Spoken Languages

    • English, Portuguese

138 Achievements

  • How it Works
  • Ruby Variables and Methods
  • Ruby Objects and Classes
  • Build a Simple Contact List
  • Ruby Iteration
  • Ruby Loops
  • Build a Grocery List Program
  • Ruby Hashes
  • Ruby Arrays
  • Ruby Logical Operators
  • Ruby Control Structures
  • Ruby Operators
  • Tuples
  • Dictionaries
  • Local Python
  • Grid Layout
  • Flexbox Layout
  • Positioning Schemes
  • Float Layout
  • Display Modes
  • Structuring Tables
  • Table Basics
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • JavaScript Objects
  • Installing Wordpress
  • JavaScript Arrays
  • JavaScript Loops
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • Ruby Methods
  • Ruby Numbers (Ruby Basics)
  • Ruby Strings (Ruby Basics)
  • How Ruby Works
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Migrating a SQLite Database
  • Introducing JavaScript
  • CRUD Operations with SQLite
  • Using SQLite for Structured Data
  • Key-Value Saving with SharedPreferences
  • The Logo Sprint
  • Logo Design 101
  • File Storage
  • Introduction to Data Persistence
  • Efficiency!
  • Exploring the Java Collections Framework
  • Organizing Data
  • Getting There
  • Acting on List Item Taps
  • Lists with RecyclerViews
  • Using Parcelable Data
  • Custom ListViews
  • Standard ListViews
  • Updating the Data Model
  • Adding Push Notifications from Parse.com
  • Updating Other GridViews
  • Customizing a GridView for Friends
  • Customizing a ListView for the Inbox
  • Customizing the Action Bar
  • Using Custom Styles and Themes
  • Customizing the Login Screen
  • Starting with Design Mockups
  • Self-Destruction
  • Retrieving and Viewing Messages
  • Sending Messages
  • Capturing Photos and Videos
  • Relating Users in Parse.com
  • Slices
  • Using Fragments for Tabs
  • Lists Redux
  • Adding Users Using Parse.com
  • Moving Around in the Console
  • Starting the App
  • Pick a Number! Any Number!
  • Putting the "Fun" Back in "Functions"
  • Shopping List
  • Things That Count
  • Ins & Outs
  • Say Hello to Python
  • Hooking up the Model to the View
  • Building the Weather UI
  • Working with JSON
  • Concurrency and Error Handling
  • Networking
  • Exploring an API
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Using Intents to Display and Share Posts
  • Adapting Data for Display in a List
  • Getting Data from the Web
  • Finishing the User Interface
  • The Model-View-Controller Pattern
  • Intents and Multiple Activities
  • User Input
  • Rebuilding from Scratch
  • Exploring the Master-Detail Template
  • Using Git for Android
  • Getting Started with Genymotion
  • Getting Started with Android Studio
  • Publishing on Google Play
  • Testing and Debugging
  • Improving Our Code
  • Coding the Fun Facts
  • Basic Android Programming
  • Creating the Initial Screen Layout
  • Getting Started with Android
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Newbie