``` private var progressDialogFragment: ProgressDi...

# getting-started

[ursus]

private var progressDialogFragment: ProgressDialogFragment? = null

fun foo() {
   if (progressDialogFragment == null) {
      progressDialogFragment = ProgressDialogFragment.newInstance(R.string.loading)
   }

   val pdf = progressDialogFragment!!
   if (!pdf.isAdded) pdf.show(fragmentManager!!, TAG_PROGRESS_DIALOG)
}