How to show ProgressBar in centre of screen regardless layout types

Question

I wonder if there is any way to show a ProgressBar at the middle of the screen programatically regardless the type of layout of the current Activity like a toast can be shown like,

Toast toast = Toast.makeText(Activity.this,"Sample toast", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();

Answer 1

Thanks ADM and Reddy for guidance. Finally I was able to show a progressBar using dialog,

var loadingDialog: Dialog? = null

fun showLoadingDialog() {

    loadingDialog = Dialog(this)

    loadingDialog?.window?.requestFeature(Window.FEATURE_NO_TITLE)
    loadingDialog?.setCancelable(true)

    val relativeLayout = RelativeLayout(this)
    relativeLayout.layoutParams = RelativeLayout.LayoutParams(MATCH_PARENT, MATCH_PARENT)

    val progressBar = ProgressBar(this, null, android.R.attr.progressBarStyleLarge)
    val params = RelativeLayout.LayoutParams(150, 150)
    params.addRule(RelativeLayout.CENTER_IN_PARENT)

    relativeLayout.addView(progressBar, params)

    loadingDialog?.window?.setContentView(relativeLayout, relativeLayout.layoutParams)
        loadingDialog?.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
        loadingDialog?.show()
}

fun hideLoadingDialog(){

    loadingDialog?.hide()
}