单击UITextField iOS时如何显示弹出菜单列表？ （Kxmenu）

Sorry I am a little bit new on iOS Development , for a project i need to use popup list menu library ( i know iOS support PickerView , ... for the purpose of choosing from a list menu) but i need to use that popup list , so after some search i find this library : Sorry I am a little bit new on iOS Development