@Override
 protected void onDestroy() {
   MyApplication.removeAct(this);
   super.onDestroy();
   if (popup != null && popup.isShowing()) {
     popup.dismiss();
   }
 }
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   if (user == null) {
     user = new User();
   }
   popup = new PopupWindow(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
   // 若popup未设置Backgroud会导致在点击其它地方时popup不自动收起
   popup.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
   popup.setFocusable(true);
   MyApplication.addAct(this);
 }
  @Override
  protected void onResume() {
    super.onResume();
    if (!CacheUtil.isInit()) {
      CacheUtil.initCache(context);
    }

    drawer = new SimpleSideDrawer(this);
    drawer.setLeftBehindContentView(R.layout.left);

    name = (TextView) drawer.findViewById(R.id.name);
    role = (TextView) drawer.findViewById(R.id.role);
    company = (TextView) drawer.findViewById(R.id.company);
    change_pwd = (LinearLayout) drawer.findViewById(R.id.change_pwd);
    system_config = (LinearLayout) drawer.findViewById(R.id.system_config);
    quit = (TextView) drawer.findViewById(R.id.quit);
    quit.setOnClickListener(
        new OnClickListener() {

          @Override
          public void onClick(View v) {
            BaseActivity.this.finish();
          }
        });
    if (user != null) {
      name.setText(user.getUser());
      role.setText(user.getRole());
      company.setText(user.getCompany());
      change_pwd.setOnClickListener(
          new OnClickListener() {

            @Override
            public void onClick(View v) {
              Intent intent = new Intent(BaseActivity.this, ChangePwd.class);
              startActivity(intent);
            }
          });
      system_config.setOnClickListener(
          new OnClickListener() {
            @Override
            public void onClick(View v) {
              Intent intent = new Intent(BaseActivity.this, SystemConfig.class);
              startActivity(intent);
            }
          });
    }
  }