Create an Android Twitter App

Hello, Habr! We bring to your attention a course in which the step-by-step creation of a Twitter client is considered.

At the moment, the course consists of two parts. The first part of the course is completely free. The lessons are textual material, to which their video versions will gradually be laid out.

The first part of the course is aimed at beginning developers and focuses on user interface elements and general layout principles. After completing this part, you will already receive a full-fledged application. It will look like a real Twitter, though it will only work locally.

Android Twitter app. First part

Lesson 0. Installing the necessary software, creating an empty project
Lesson 1. Creating an Activity and working with LinearLayout as an example of UserInfoScreen
Lesson 2. Working with RelativeLayout as an example of UserInfoScreen
Lesson 3. Resources of the res / values ​​folder. Localization. AndroidManifest
Lesson 4. Styles.xml file, getting to know TextAppearance
Lesson 5. Attribute app: fontFamily. Using Font-Awesome to display icons
Lesson 6. Adding libraries to the build.gradle file. Working with ImageView: adding the CircleImageView library, using the Picasso library to upload photos
Lesson 7. Practice. Creating a Tweet List Element
Lesson 8. Practice. Creating a user list item and a user search toolbar
Lesson 9. Creating a POJO User object. Working with View from java code
Lesson 10. Practice. Creating a POJO Tweet Object
Lesson 11. Working with RecyclerView using TweetsRecyclerView as an example
Lesson 12. Practice. UsersAdapter. Processing a click on a list item
Lesson 13. Working with the Toolbar and menu using the UserInfoActivity example
Lesson 14. Filling the Toolbar with nested elements on the SearchUsersActivity screen

In the second part, you will get acquainted with the principles of interaction with real API services. You can connect to Twitter services and work with its real data! In addition, in the second part of the course, each lesson is accompanied by its video version, and individual blocks of topics end with test tasks, thanks to which you can check and consolidate your knowledge.

Android Twitter app. Second part

Lesson 1. Register a Twitter application, add authorization using the Twitter API
Lesson 2. Introduction to HTTP. HttpUrlConnection, a method for reading user data
Lesson 3. Performing a task in a background thread. AsyncTask Class
Lesson 4. Introducing the JSON Format. Parsing JsonObject as an example of a User object
Lesson 5. Working with Http, JSON as an example of information for a list Tweet
Lesson 6. Practice. Adding Http Requests, Json Parsing to SearchUsersActivity Screen
Lesson 7. Error Handling. Mapping Toast to User
Lesson 8. Working with SwipeRefreshLayout. Showing load on requests
Lesson 9. Using the gson library to automate parsing
Lesson 10. Parsing a Tweet object using your own deserializer
Lesson 11. Lambda expressions

The course was created primarily in order to interest beginner Android developers and allow them to study the material not in a dry theory, but in pure practice. To instantly see the result of painstaking work.

For more experienced developers who like to learn directly from the code, rather than from text or video materials, we have prepared GitHub repositories for the first and second parts of the course.

We hope that this course will inspire young developers to develop their own applications! If you want to tighten your knowledge on other basics related to Android development, we can recommend the following courses for you:

• Android development for beginners
• Java Programming for Beginners
• Introducing the Kotlin Programming Language
• Android application development “RemindMe”

And we will publish new courses and materials on various technologies, stay tuned for updates on our website !