private void showLoadingScreen()
        {
            loadingDialog = ProgressDialog.Show(this, "just a sec", "Loading please wait...", true);
            loadingDialog.SetCancelable(true);
            loadingDialog.SetProgressStyle(ProgressDialogStyle.Horizontal);

            loadingDialog.SetMessage("Loading...");
            loadingDialog.Show();
        }



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loadingDialog.Hide();
loadingDialog.Dismiss();