//download the new app  private void downLoadNewApp(NewVersion.XianzaishiRfBean version) {    if (StringUtils.isEmpty(version.getUrl())) {      ToastUtils.showToast("新版本的APP url為空");      enterLoginActivity();      return;    }    final ProgressDialog dialog = new ProgressDialog(this);    dialog.setTitle("正在下載");    dialog.setMessage(version.getDes() + "");    dialog.setCancelable(false);    dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);    dialog.show();    if (!NetUtils.hasNet(SplashActivity.this)) {      ToastUtils.showToast("請檢查網絡環境");      return;    }    System.out.println("SplashActivity.downLoadNewApp=" + version.getUrl());    OkHttpUtils        .get()        .url(version.getUrl())        .build()        .execute(new FileCallBack(Environment.getExternalStorageDirectory().getAbsolutePath(), Conts.NEW_APP_NAME) {          @Override          public void onError(Call call, Exception e, int id) {            enterLoginActivity();            System.out.println("SplashActivity.onError=哈哈哈");            ToastUtils.showToast("下載更新包失敗");          }          @Override          public void inProgress(float progress, long total, int id) {            super.inProgress(progress, total, id);            dialog.setProgress((int) (100 * progress));          }          @Override          public void onResponse(File response, int id) {            Intent intent = new Intent();            intent.setAction(Intent.ACTION_VIEW);            intent.addCategory(Intent.CATEGORY_DEFAULT);            intent.setDataAndType(Uri.fromFile(response),                "application/vnd.android.package-archive");            startActivityForResult(intent, 0);          }        });  }