using kotlin language in new instance.

README.md

Introduction

New a fragment instance in Kotlin style.

fragment.kt

class MyFragment: BaseFragment() {
    companion object Factory {
        // The key name of the fragment initialization parameters.
        private val ARG_PARAM_: String = "param_"

        fun newInstance(arg1: String? = null):
                MovieGalleryFragment = MovieGalleryFragment().apply {
            this.arguments = Bundle().apply {
                this.putString(ARG_PARAM_, arg1)
            }
        }
    }

    // Get the arguments from the bundle here.
    private val arg: String by lazy { this.arguments.getString(ARG_PARAM_) }
}