ProjectFragment

private void initData() {
     new Thread(new Runnable() {
            @Override
            public void run() {
            //获取数据
                try {
                    URL url = new URL("https://www.wanandroid.com/project/tree/json");
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
                        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                        StringBuffer buffer = new StringBuffer();
                        String len = null;
                        while ((len = reader.readLine()) != null) {
                            buffer.append(len);
                        }
                        String string = buffer.toString();
                         //解析
                        final ProjectBean projectBean = new Gson().fromJson(string, ProjectBean.class);
                        getActivity().runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                            //创建Fragment
                                ArrayList<Fragment> fragments = new ArrayList<>();
                                for (int i = 0; i < projectBean.getData().size(); i++) {
                                    fragments.add(new PublicFragment(projectBean.getData().get(i).getId()));
                                }
                                 //创建适配器
                                PagerAdapter adapter = new PagerAdapter(getChildFragmentManager(), fragments);
                                mVp.setAdapter(adapter);
                                mTab.setupWithViewPager(mVp);//联动
                                //添加tab
                                for (int i = 0; i < projectBean.getData().size(); i++) {
                                    mTab.getTabAt(i).setText(projectBean.getData().get(i).getName());
                                }
                            }
                        });
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

PublicFragment

public PublicFragment(int id) {
        this.id = id;//不写id会报错
}

private void initView(@NonNull final View view) {
        mRv = (RecyclerView) view.findViewById(R.id.rv);
        mRv.setLayoutManager(new LinearLayoutManager(getActivity()));//布局管理器
        list = new ArrayList<>();
        adapter = new PublicAdapter(getActivity(), list);//创建适配器
        mRv.setAdapter(adapter);//设置适配器
        initData();//解析
    }