TabLayout与ViewPager联动

直接上代码

public class Main2Activity extends AppCompatActivity {

    private TabLayout tab;
    private ViewPager vp;
    private List<String> strings;
    List<Fragment> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);
        initView();

    }

    private void initView() {
        tab = (TabLayout) findViewById(R.id.tab);
        vp = (ViewPager) findViewById(R.id.vp);
        //创建tab标题的集合
        strings = Arrays.asList(new String[]{"最新日报", "专栏", "热门", "主题日报"});
        initData();
        vp.setAdapter(new MyPagerAdapter(getSupportFragmentManager()));
        tab.setupWithViewPager(vp);
        tab.getTabAt(0).select();
    }

    //添加Fragment
    private void initData() {
        list = new ArrayList<>();
        list.add(new FragmentOne());
        list.add(new FragmentOne());
        list.add(new FragmentOne());
        list.add(new FragmentOne());
    }

    //ViewPager的适配器
    class MyPagerAdapter extends FragmentPagerAdapter {

        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            return list.get(position);
        }

        @Override
        public int getCount() {
            return list.size();
        }

        //返回标题
        @Override
        public CharSequence getPageTitle(int position) {
            return strings.get(position % strings.size());
        }
    }
}