He Zhang

He Zhang

Member Since April 25, 2015

7,475

Total Points

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

93 Achievements

  • Getting Started with CSS
  • Basic Selectors
  • Introduction to Delegates
  • Reading Data from Databases with SQL
  • Installing MySQL Server and MySQL Workbench
  • Getting Started with Data Science
  • JavaScript Variables
  • Start menu and App Icon
  • Sound Design
  • Animating and Saving Sprites
  • Designing Characters and a Scene
  • Introduction to Game Design
  • Workflows
  • Working With Remote Repositories
  • Merging
  • Branches
  • Getting Started With Git
  • Getting Started With Git
  • Why Version Control Matters
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Introducing JavaScript
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • IDE Exploration
  • How it Works
  • Beginning HTML and CSS
  • Introduction to Data, Databases and SQL
  • Migrating a SQLite Database
  • CRUD Operations with SQLite
  • Using SQLite for Structured Data
  • Key-Value Saving with SharedPreferences
  • File Storage
  • Introduction to Data Persistence
  • 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
  • Using Fragments for Tabs
  • Adding Users Using Parse.com
  • Starting the App
  • Acting on List Item Taps
  • Lists with RecyclerViews
  • Using Parcelable Data
  • Custom ListViews
  • Standard ListViews
  • Updating the Data Model
  • Efficiency!
  • Exploring the Java Collections Framework
  • Organizing Data
  • Getting There
  • Delivering the MVP
  • Creating the MVP
  • Harnessing the Power of Objects
  • Meet Objects
  • Perfecting the Prototype
  • Using your New Tools
  • Getting Started with Java
  • Hooking up the Model to the View
  • Building the Weather UI
  • Working with JSON
  • Concurrency and Error Handling
  • Networking
  • Exploring an API
  • Using Git for Android
  • Getting Started with Genymotion
  • Getting Started with Android Studio
  • Publishing on Google Play
  • Finishing the User Interface
  • The Model-View-Controller Pattern
  • Intents and Multiple Activities
  • User Input
  • Testing and Debugging
  • Improving Our Code
  • Coding the Fun Facts
  • Basic Android Programming
  • Creating the Initial Screen Layout
  • Getting Started with Android
  • Newbie