Tablayout

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  import android.support.design.widget.TabLayout;

        import android.support.v4.view.PagerAdapter;        import android.support.v4.view.ViewPager;        import android.support.v7.app.AppCompatActivity;        import android.os.Bundle;        import android.view.View;        import android.view.ViewGroup;        import android.widget.TextView;        import org.w3c.dom.Text;        import java.util.ArrayList;        import java.util.List;public class MainActivity extends AppCompatActivity {    TabLayout tab;    ViewPager vp;    List<String> listStr ;    List<TextView> listTv ;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        tab = (TabLayout) findViewById(R.id.tab);        vp = (ViewPager) findViewById(R.id.vp);        initData();        MyAdapter myAdapter = new MyAdapter();        vp.setAdapter(myAdapter);//        for (int i = 0; i < 12; i++) {//            tab.addTab(tab.newTab().setText("标题" + i));//        }        //设置可以滑动        tab.setTabMode(TabLayout.MODE_SCROLLABLE);        //当tabLayout和ViewPager进行绑定后   标题会消失        //在PagerAdapter中要重写一个  getPageTitle()        tab.setupWithViewPager(vp);    }    private void initData() {        listStr = new ArrayList<String>();        listTv = new ArrayList<TextView>();        for (int i = 0; i < 10; i++) {            String str = "条目" + i;            listStr.add(str);            TextView tv = new TextView(this);            tv.setText(str);            listTv.add(tv);        }    }    class MyAdapter extends PagerAdapter{        @Override        public int getCount() {            return listTv.size();        }        @Override        public boolean isViewFromObject(View view, Object object) {            return view == object;        }        //ctrl + o        @Override        public Object instantiateItem(ViewGroup container, int position) {            container.addView(listTv.get(position));            return listTv.get(position);        }        @Override        public void destroyItem(ViewGroup container, int position, Object object) {            container.removeView((View) object);//            super.destroyItem(container, position, object);        }        //在PagerAdapter和FragmentPagerAdapter中都有该方法        @Override        public CharSequence getPageTitle(int position) {            return listStr.get(position);        }    }}