@Override
 public void onSaveInstanceState(Bundle outState) {
   super.onSaveInstanceState(outState);
   if (mModelInfo != null) {
     outState.putSerializable(GlobalAction.ContractAction.EXTRA_KEY_CONTRACT_INFO, mModelInfo);
   }
 }
 @Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   Logger.e(TAG, "onCreate");
   if (savedInstanceState != null) {
     mModelInfo =
         (ContractModelInfo)
             savedInstanceState.getSerializable(
                 GlobalAction.ContractAction.EXTRA_KEY_CONTRACT_INFO);
   }
 }