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这个主要还是adapter 里面 添加list 就行了

这里直接上代码吧 ，我刚写的demo 看的时候看adapter 就行了

布局代码：

tablayout + viewpager 

public class DetailsActivity extends AppCompatActivity {    private TabLayout tabLayout;    private ViewPager viewPager;    private List
   
     fragments;    private List
    
      titles;    private mPagerAdapter adapter;    String[] str = {"大海", "蓝天", "白云"};    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.details_activity_layout);        fragments = new ArrayList<>();        titles = new ArrayList<>();        tabLayout = findViewById(R.id.detail_food_tablayout);        viewPager = findViewById(R.id.detail_food_viewpager);        for (int i = 0; i < str.length; i++) {            titles.add(str[i]);            fragments.add(DetailsFragment.newInstance(i));        }        adapter = new mPagerAdapter(getSupportFragmentManager(), titles, fragments);        viewPager.setAdapter(adapter);        tabLayout.setupWithViewPager(viewPager);    }    private class mPagerAdapter extends FragmentPagerAdapter {        private List
     
       mFragmentList;        private List
      
        mTitles;        public mPagerAdapter(FragmentManager fm, List
       
         titles, List
        
          fragList) { super(fm); mTitles = titles; mFragmentList = fragList; } @Override public Fragment getItem(int position) { return mFragmentList.size() != 0 ? mFragmentList.get(position) : null; } @Override public int getCount() { return mFragmentList == null ? 0 : mFragmentList.size(); } @Override public CharSequence getPageTitle(int position) { return mTitles.size() != 0 ? mTitles.get(position) : ""; } @Override public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) { } }}
        
       
      
     
    
   

fragment 代码

public class DetailsFragment extends Fragment {    private int index;    public static DetailsFragment newInstance(int index) {        DetailsFragment df = new DetailsFragment();        Bundle bundle = new Bundle();        bundle.putInt("index", index);        df.setArguments(bundle);        return df;    }    @Override    public void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        if (getArguments() != null) {            index = getArguments().getInt("index");            Log.e("-------index", String.valueOf(index));        }    }    @Nullable    @Override    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.details_fragment_layout, container, false);        return view;    }    @Override    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {        super.onViewCreated(view, savedInstanceState);    }}

Fragment 里面请求服务器加载数据即可。。。。

注意事项 ，由于viewPager 缓存问题第一次进来的还把第二个界面的数据也会加载了，这个问题可以使用Fragment的

懒加载来处理。。。。

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