侧拉框

##核心代码
        //显示标题栏左边icon
        //actionBar是4.0    getActionBar()
        //不要使用getActionBar
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        getSupportFragmentManager()
                .beginTransaction()
                .replace(R.id.left_drawer, new LeftDrawerFragment())
                .commit();

        drawer = findViewById(R.id.drawer);
        //DrawerLayout 和 ActionBar(Toolbar)中间人
        toggle = new ActionBarDrawerToggle(this, drawer,
                R.string.drawer_open, R.string.drawer_close);
        //同步状态
        toggle.syncState();
        //Drawer监听
        drawer.addDrawerListener(toggle);

@Override
    public boolean onOptionsItemSelected(MenuItem item) {
        //先交给toggle处理
        if (toggle.onOptionsItemSelected(item)) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    //关闭侧拉菜单
    public void closeDrawer() {
        drawer.closeDrawer(Gravity.START);
    }

public void switchPage(int position){
    viewPager.setCurrentItem(position-1);
    drawerclose();
}

menus.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if(position == 0) {
                    ((MainActivity)getActivity()).closeDrawer();
                    return;
                }
                ((MainActivity)getActivity()).switchPage(position - 1);
            }
        });

##适配器

public class Leftadapter extends BaseAdapter {
    private Context context;
    private String[] s;

    public Leftadapter(Context context) {
        this.context = context;
        s = new String[]{"","首页","联系人","我的"};
    }

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

    @Override
    public String getItem(int position) {
        return s[position];
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public int getItemViewType(int position) {
        if (position==0){
            return 0;
        }
        return 1;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
       if (getItemViewType(position)==0){
           TopViewHolder topViewHolder = null;
           if (convertView==null){
               convertView = LayoutInflater.from(context).inflate(R.layout.lefttop_item,parent,false);
                topViewHolder = new TopViewHolder(convertView);
           }  else {
               topViewHolder = (TopViewHolder) convertView.getTag();
           }

       }else {
           ViewHolder viewHolder = null;
           if (convertView==null){
               convertView = LayoutInflater.from(context).inflate(R.layout.lefttop_item,parent,false);
               viewHolder = new ViewHolder(convertView);
           }  else {
               viewHolder = (ViewHolder) convertView.getTag();
           }
           viewHolder.name.setText(getItem(position));
       }
        return convertView;
    }
    class TopViewHolder{
        ImageView img;
        TextView name;

        public TopViewHolder(View convertView) {
           img = convertView.findViewById(R.id.img);
           name = convertView.findViewById(R.id.name);
           convertView.setTag(this);
        }


    }
    class ViewHolder{
        TextView name;

        public ViewHolder(View convertView) {
            name = convertView.findViewById(R.id.name);
            convertView.setTag(this);
        }
    }
}