andrion顶部菜单切换TabLayout+viewpager+fragment详解

下面我们直接上主题，其实很简单

一、新建一个activity主页面，布局代码

二、主程序代码

public class ShshpdaActivity extends AppCompatActivity {

    private ViewPager mViewPager;
    private TabLayout mTabLayout;


    private List mTitle;// fr标题集合
    private List fragments;
    private TabLayout wtab_layout;
    private ViewPager wview_pager;



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

        init();
        initData();
    }





    private void init() {
        wtab_layout = findViewById(R.id.id_tablayout);
        wview_pager = findViewById(R.id.viw_com);
    }
    private void initData() {
        mTitle = new ArrayList<>();
        fragments = new ArrayList<>();
        mTitle.clear();
        fragments.clear();
        mTitle.add("推荐");
        mTitle.add("热点");
        mTitle.add("本地");
        mTitle.add("图片");
        fragments.add(new OneFragment());
        fragments.add(new TwoFragment());
        fragments.add(new ThreeFragment());
        fragments.add(new HomeFragment());
        WViewPagerAdapter pageAdapter = new WViewPagerAdapter(getSupportFragmentManager(),mTitle,fragments);
        wview_pager.setAdapter(pageAdapter);
        wtab_layout.setupWithViewPager(wview_pager);
     
    }






}

三.适配器WViewPagerAdapter

public class WViewPagerAdapter    extends FragmentPagerAdapter {

    private final List titleLists;
    private final List fragments;
    public WViewPagerAdapter(FragmentManager fm, List mTitleList, List fragments) {
        super(fm);
        this.titleLists = mTitleList;
        this.fragments = fragments;
    }
    @Override
    public Fragment getItem(int i) {
        return fragments.get(i);
    }
    @Override
    public int getCount() {
        return fragments.size();
    }
    @Override
    public CharSequence getPageTitle(int position) {
        return titleLists.get(position);
    }



}

4.碎片OneFragment，后面四个是一样的，按照这样式改。

public class OneFragment extends Fragment  {

    private ListView listView;

    private ListView lzpg_reclv;
    private Lzpaadapter recadapter;
    //lzpg_reclv
    private List datas = new ArrayList<>();
    String pdqyid="1";
    //设置所在activity的引用
    Activity activity;
    View view;


    LzpdTableinfo lzpdTableinfo;


    StateLayout  stateLayout;
    private Button mBtnweb;
    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

    public OneFragment() {
        // Required empty public constructor
    }

    
    // TODO: Rename and change types and number of parameters
    public static TwoFragment newInstance(String param1, String param2) {
        TwoFragment fragment = new TwoFragment();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

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


        view =inflater.inflate(R.layout.fragment_one,container,false);

        activity=getActivity();

        initView();//初始化界面
      //  getDatas(pdqyid);

        listView = (ListView)view.findViewById(R.id.lzgd_onelv);
        List> list=getData();
        listView.setAdapter(new ListViewAdapter(getActivity(), list));

        return view;





    }




    //添加bean类数据临时的先添加，再连数据库
    public List> getData(){
        List> list=new ArrayList>();
        List datasLIST = new ArrayList<>();


        for (int i = 0; i < 10; i++) {
            Map map=new HashMap();
            // map.put("image", R.drawable.ic_launcher);
            map.put("title", "这是一个标题"+i);
            map.put("info", "这是一个详细信息" + i);
            list.add(map);
        }
        return list;
    }







//

    private void initView() {
        //为了增加ToolBar新建一个垂直的线性布局
        LinearLayout lin = new LinearLayout(getActivity());
        lin.setOrientation(LinearLayout.VERTICAL);
        //将ToolBar添加在上面
        lin.addView(View.inflate(getActivity(), R.layout.activity_toolbar,null));
        //将我们的各种界面添加在下面
        stateLayout = new StateLayout(getActivity());
        lin.addView(stateLayout);
        //添加一个加载成功的view
        stateLayout.bindSuccessView(getsuccessView());
        //绑定线性布局
        //setContentView(lin);
        ButterKnife.bind(getActivity());
        //首先展示正在加载的view
        stateLayout.showLoadingView();
    }
    public View getsuccessView() {
        View successView = View.inflate(getActivity(), R.layout.activity_lzgd, null);
        return successView;
    }












}

6.布局fragment_one.xml

7.列表布局activity_lzgd.xml

8.activity_toolbar.xml