public class MainActivity extends AppCompatActivity {

    private TabLayout tab;
    private ViewPager vp;

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

        tab.setupWithViewPager(vp);
        vp.setAdapter(new MyAdapter(getSupportFragmentManager()));

    }

    private void initView() {
        tab = (TabLayout) findViewById(R.id.tab);
        vp = (ViewPager) findViewById(R.id.vp);
    }
}

//适配器

public class MyAdapter extends FragmentPagerAdapter {

    String[] strs={"美食","休闲娱乐","生活服务","酒店","全部"};
    public MyAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {
        return MyFragment.getFragment(null,strs[position]);
    }

    @Override
    public int getCount() {
        return strs.length;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return strs[position];
    }
}

//fragment

public class MyFragment  extends Fragment {

    private TextView frag_tv;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {



        return LayoutInflater.from(getActivity()).inflate(R.layout.myfragment,null);
    }

    @Override
    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        initView();
        Bundle bundle = getArguments();
        String title = bundle.getString("title");


        frag_tv.setText(title);

    }

    private void initView() {
        frag_tv=getView().findViewById(R.id.frag_tv);
    }


    public static  Fragment getFragment(String url,String title){
        MyFragment myFragment = new MyFragment();
        Bundle bundle = new Bundle();
        bundle.putString("title",title);
        bundle.putString("url",url);
        myFragment.setArguments(bundle);
        return myFragment;

    }
}