how to use dataBindingUtil to inflate every layout (using android studio)

Question

i was told to set dataBindingUtil in build.gradle after doing that i am being told to use dataBindingUtil to inflate every layout not sure how to use dataBindingUtil to inflate every layout

Answer 1

You can use dataBinding alongside viewBinding to declare your view hassle-free in your Kotlin/Java file. In your app build.gradle file add the following

android {
    ......
    buildFeatures {
        dataBinding true
        viewBinding true
    }
}

Now convert the xml layout you want to use data binding in to data binding layout by wrapping it in

<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
<data>
    <variable
        name="viewmodel"
        type="com.myapp.data.ViewModel" />
</data>
<ConstraintLayout... /> <!-- UI layout's root element -->

In order to inflate and use this variable in your Kotlin file, add the following line

ViewNameBinding binding = ViewNameBinding.inflate(layoutInflater)

Here ViewNameBinding is auto generate as per you view name.

Answer 2

Use Binding class's inflate as recommended in Android Documentation.

DataBindingUtil used when only you don't have generated binding class.

You can generated binding class, use that class instead of using DataBindingUtil.

In Kotlin

lateinit var binding: HomeFragmentBinding 
override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
    binding = HomeFragmentBinding.inflate(inflater, container, false)
    return binding.root
}

If your layout biniding class is not generated @See this answer.