ProgressDialog.java

static ProgressDialog progressDialog;

    public static void showProgress(Activity activity) {
        progressDialog = new ProgressDialog(activity);
        progressDialog.setIndeterminate(false);
        progressDialog.setCancelable(false);
        progressDialog.setMessage("Loading...");
        progressDialog.show();
    }

    public static void showProgress(Activity activity, String message) {
        progressDialog = new ProgressDialog(activity);
        progressDialog.setIndeterminate(false);
        progressDialog.setCancelable(false);
        progressDialog.setMessage(message);
        progressDialog.show();
    }

    public static void dismissProgress() {
        if (progressDialog.isShowing())
            progressDialog.dismiss();
        else
            Log.i("Dialog", "already dismissed");
    }