横向滑动菜单：horizontalscrollview+viewpager+Fragment

public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private HorizontalScrollView scrollView;    private LinearLayout linearLayout;    private ViewPager viewPager;    private String[] titles;    private ArrayList<TextView> list;    private LinearLayout.LayoutParams params;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //获取控件        scrollView = (HorizontalScrollView) findViewById(R.id.Scrollview);        linearLayout = (LinearLayout) findViewById(R.id.Linearlayout);        viewPager = (ViewPager) findViewById(R.id.Viewpager);        //创建数据源        titles = new String[]{"头条", "社会", "国内", "国际", "娱乐", "体育", "军事", "科技", "财经", "时尚"};        //创建集合        list = new ArrayList<>();        //设置数据        initdata();        //创建适配器        viewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {            @Override            public Fragment getItem(int position) {                return fragment.getinfo(list.get(position).getText().toString());            }            @Override            public int getCount() {                return titles.length;            }        });        //监听        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {            @Override            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {            }            @Override            public void onPageSelected(int position) {                for (int i = 0; i < list.size(); i++) {                    if (position == i) {                        list.get(i).setTextColor(Color.RED);                    } else {                        list.get(i).setTextColor(Color.BLACK);                    }                }                TextView textView = list.get(position);                int width = textView.getWidth();//获取宽度                //计算该滑到哪里                scrollView.scrollTo((width + 20) * position, 0);//viewpager滑动时与滚动控件想配合一起滑动            }            @Override            public void onPageScrollStateChanged(int state) {            }        });    }    public void onClick(View view) {        int id = view.getId();        viewPager.setCurrentItem(id - 10000);    }    private void initdata() {        //添加数据，设置宽高，设置字体颜色        for (int i = 0; i < titles.length; i++) {            //自己定义一个textview            TextView view = new TextView(this);            //把数据放入textview里            view.setText(titles[i]);            //设置数据最大小            view.setTextSize(20);            //通过判断刚进入为黑色，否则为红色            if (i == 0) {                view.setTextColor(Color.RED);            } else {                view.setTextColor(Color.BLACK);            }            //给textview设置点击事件            view.setOnClickListener(this);            view.setId(i + 10000);            //设置textview控件的宽高            params = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);            //通过宽高设置neibianju            params.setMargins(20, 10, 20, 10);            //将textview控件添加到滚动控件里面的LinearLayout布局            linearLayout.addView(view, params);            //把数据添加到集合            list.add(view);        }    }}//class类
public class fragment extends Fragment{    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        Bundle arguments = getArguments();        String sss = arguments.getString("sss");        TextView textView = new TextView(getActivity());        textView.setText(sss);        return textView;    }    public static Fragment getinfo(String titles){        fragment fragment0 = new fragment();        Bundle bundle = new Bundle();        bundle.putString("sss",titles);        fragment0.setArguments(bundle);        return fragment0;    }}//主布局
<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="chendemin.bwei.com.viewpagerindacaterhorizontalscrollview.MainActivity"    android:orientation="vertical">    <HorizontalScrollView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/Scrollview"        android:layout_marginTop="30dip"        >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="horizontal"            android:id="@+id/Linearlayout"            >        </LinearLayout>    </HorizontalScrollView>    <android.support.v4.view.ViewPager        android:id="@+id/Viewpager"        android:layout_width="match_parent"        android:layout_height="match_parent">    </android.support.v4.view.ViewPager></LinearLayout>