code: public void setRefreshCompleteHook(PtrUIHandlerHook hook) {
          mRefreshCompleteHook = hook;
          hook.setResumeAction(new Runnable() {
              @Override
              public void run() {
                  if (DEBUG) {
                      PtrCLog.d(LOG_TAG, "mRefreshCompleteHook resume.");
                  }
                  notifyUIRefreshComplete(true);
              }
          });
      }
docs: please DO REMEMBER resume the hook
  
  @param hook