How to create an android app to chat via Firebase (EN subtitles)

Today we will create a simple application - chat on android using Firebase service. The application will use the authorization by email. The source code in the text version of the lesson lesson: goo.gl/ItK2pl
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Lesson 30. Using requestCode and resultCode in onActivityResult goo.gl/j5FtQr
Generics (Generics) in java www.fandroid.in...
Working with Firebase in android www.fandroid.in...
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Advanced courses on the creation of real-world applications and games for android: www.fandroid.info/
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More lessons:
how to create android application: goo.gl/oJgrOc
Lessons Android Studio: goo.gl/02GtH5
Tools android developer: goo.gl/VoAnZx
Design android app: goo.gl/cfwMEV
Lessons of creating games for android: goo.gl/NVS39q
Fundamentals of programming in JAVA: goo.gl/TZRHpG
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