A helper superclass that accepts a layout with data binding enabled.

DataBindingFragment.kt

import android.os.Bundle
import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.annotation.LayoutRes
import androidx.databinding.DataBindingUtil
import androidx.databinding.ViewDataBinding
import androidx.fragment.app.Fragment

/**
 * A helper superclass that accepts a layout with data binding enabled.
 *
 * Example usage:
 * ```
 *  class FragmentAuth : DataBindingFragment<FragmentAuthBinding>(R.layout.fragment_auth)
 * ```
 * @param layout layout res id with data binding.
 */
open class DataBindingFragment<T : ViewDataBinding>(
    @LayoutRes val layout: Int
) : Fragment() {
    internal var binding: T? = null

    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ) = DataBindingUtil
        .inflate<T>(inflater, layout, container, false)
        .apply { binding = this }
        .root
}