data binding steps in android
Step 1 : Enable dataninding in build.gradle(app)
android{
...
buildFeatures{
dataBinding true
}
}
or
android {
...
dataBinding {
enabled true
}
}
Step 2 : Add kapt dependency and apply kapt plugin
dependencies {
...
kapt "com.android.databinding:compiler:3.1.4" (use the version suitable
for you)
}
and
plugins {
...
id 'kotlin-kapt'
}
or
apply plugin: 'kotlin-kapt'
step 3 : Convert the fragment or activity to databinding form by adding
<layout> tag and move the namespaces to the <layout> tag as following
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<data>
</data>
...
</layout>
step 4 : remove setContentView(R.layout.activity) and add the following line in
your fragment or activity class
val binding:ActivityMainBinding = DataBindingUtil
.setContentView(this,R.layout.activity)