private var progressDialog: ProgressDialog? = null

        @JvmStatic
        fun showProgress(message: String?, context: Context?, cancellable: Boolean) {
            if (context == null)
                return

            if (checkProgressOpen())
                return
            progressDialog = ProgressDialog(context)
            (progressDialog as ProgressDialog).setProgressStyle(ProgressDialog.STYLE_SPINNER)
            (progressDialog as ProgressDialog).setMessage(message ?: "Please wait...")
            (progressDialog as ProgressDialog).setCancelable(cancellable)
            try {
                (progressDialog as ProgressDialog).show()


            } catch (e: Exception) {
                // catch exception for activity paused and dialog is going to be
                // show.
            }
        }

        @JvmStatic
        fun checkProgressOpen(): Boolean {
            if (progressDialog != null && (progressDialog as ProgressDialog).isShowing())
                return true
            else
                return false
        }

        @JvmStatic
        fun cancelProgress() {
            if (checkProgressOpen()) {
                try {
                    (progressDialog as ProgressDialog).dismiss()
                    (progressDialog as ProgressDialog).cancel()
                } catch (e: Exception) {
                    e.printStackTrace()
                }
                progressDialog = null
            }
        }