如何将ShowCaseView v5生成器与片段一起使用？

Builder构造函数仅需要一个活动，public Builder(Activity activity)因此：

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment, container, false);
    showcaseView = new ShowcaseView.Builder(getActivity())
            .setTarget(new ViewTarget(view.findViewById(R.id.textView)))
            .setOnClickListener(listener)
            .build();
    ....