Project 3 - Twitter App

Twitter App is an android app that allows a user to view his Twitter timeline and post a new tweet. The app utilizes Twitter REST API.

Time spent: 40 hours spent in total

User Stories

The following required functionality is completed:

• [X] User can sign in to Twitter using OAuth login
• [X] User can view tweets from their home timeline
  • [X] User is displayed the username, name, and body for each tweet
  • [X] User is displayed the relative timestamp for each tweet "8m", "7h"
  • [X] User can view more tweets as they scroll with infinite pagination. Number of tweets is unlimited. However there are Twitter Api Rate Limits in place.
• [X] User can compose and post a new tweet
  • [X] User can click a “Compose” icon in the Action Bar on the top right
  • [X] User can then enter a new tweet and post this to twitter
  • [X] User is taken back to home timeline with new tweet visible in timeline

The following optional features are implemented:

• [X] User can see a counter with total number of characters left for tweet on compose tweet page
• [X] User can click a link within a tweet body on tweet details view. The click will launch the web browser with relevant page opened.
• [X] User can pull down to refresh tweets timeline
• [X] User can open the twitter app offline and see last loaded tweets. Persisted in SQLite tweets are refreshed on every application launch. While "live data" is displayed when app can get it from Twitter API, it is also saved for use in offline mode.
• [X] User can tap a tweet to open a detailed tweet view
• [X] User can select "reply" from detail view to respond to a tweet
• [X] Improve the user interface and theme the app to feel "twitter branded"

The following bonus features are implemented:

• [X] User can see embedded image media within the tweet detail view
• [X] Compose tweet functionality is build using modal overlay

The following additional features are implemented:

• [X] Started to use explore the ViewPager and fragments
• [X] The app strings are completely localized
• [X] Network checking and toast error messages are implemented in all network calls
• [X] Custom actions bars to give the app a closer resemblance to the production application

Video Walkthrough

Here's a walkthrough of implemented user stories:

GIF created with LiceCap.

Notes

Fragments were a bit tricky. Trying to refactor the fragments so they can be re-usable and clean requires additional todo with custom views and listeners. Profile view page is just getting started and doesn't have all the child fragments within the screen yet.

Open-source libraries used

• Android Async HTTP - Simple asynchronous HTTP requests with JSON parsing
• Picasso - Image loading and caching library for Android
• ActiveAndroid - SQLite ORM
• RoundedImageView - Rounding image views
• PagerSlidingTabStrip - Easy way to style ViewPagers