Android: The Absolute Beginners Guide To Data Binding (Videos Included)

If you haven’t read The Absolute Beginners Guide To View Binding, I recommend doing so. Okay, let’s get on with it.

Table Of Contents

Setup

• Enable Data Binding
• Apply Kotlin Kapt Plugin
• Add Data
• Add <layout> Tag
• Add <data> & <variable> Tag
• Bind Data In XML Layout

Activity

• Create Activity Binding Class
• Set Content View
• Bind Data In Code

Fragment

• Inflate Fragment Binding Class
• Return Binding Object Root View
• Bind Data In Code

Implementation First, Explanation Later

Enable Data Binding

Locate the app-level Gradle file and enable the data binding support library.

buildFeatures{
    dataBinding = true
}

Apply Kotlin Kapt Plugin

Also, in the app-level Gradle file, apply the kotlin-kapt plugin.