@Override
 protected void onPostCreate(Bundle savedInstanceState) {
   super.onPostCreate(savedInstanceState);
   SwipeBackHelper.onPostCreate(getActivity());
 }
 @Override
 protected void onPause() {
   super.onPause();
   MobclickAgent.onPause(getActivity());
 }
 @Override
 protected void onDestroy() {
   super.onDestroy();
   SwipeBackHelper.onDestroy(getActivity());
   JActivityManager.getInstance().popActivity(getActivity());
 }
 @Override
 protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   SwipeBackHelper.onCreate(getActivity());
   JActivityManager.getInstance().pushActivity(getActivity());
 }