ViewPager+Fragment多标题界面

话不多说，先上效果图：

好了，来看xml代码：（为了保持简明，我删除了部分代码）

title层级是这样的：

HorizontalScrollView,      RelativeLayout,      LinearLayout,       TextView

控制横向滚动                     包裹标题与光标      包裹标题                六个标题

public class XXXActivity extends BaseActivity implements View.OnClickListener, ViewPager.OnPageChangeListener {

    private HorizontalScrollView scroll_view;
    private LinearLayout llt_title;
    private TextView tx_applying,
            tx_holding,
            tx_can_be_redeemed,
            tx_can_be_transfer,
            tx_has_finished,
            tx_apply_fail;

    private View cursor;
    private ViewPager fragment_view_pager;
    private MyFragmentPagerAdapter adapter;
    private int currentIndex;//当前页卡编号

    private int subTitleWidth;//子标题宽度，cursor平移距离
    private int titleBarHideOffset;//整个标题未显示的长度
    private int firstHideSubTitle;//第一个未显示全的标题（从0数起）
    private int hideTitleNum;//未显示标题的数目（从1数起）

    @Override
    protected void onCreate() {
        scroll_view = (HorizontalScrollView) findViewById(R.id.scroll_view);
        llt_title = (LinearLayout) findViewById(R.id.llt_title);
        tx_applying = (TextView) findViewById(R.id.tx_applying);
        tx_holding = (TextView) findViewById(R.id.tx_holding);
        tx_can_be_redeemed = (TextView) findViewById(R.id.tx_can_be_redeemed);
        tx_can_be_transfer = (TextView) findViewById(R.id.tx_can_be_transfer);
        tx_has_finished = (TextView) findViewById(R.id.tx_has_finished);
        tx_apply_fail = (TextView) findViewById(R.id.tx_apply_fail);
        cursor = findViewById(R.id.cursor);
        fragment_view_pager = (ViewPager) findViewById(R.id.fragment_view_pager);

        tx_applying.setOnClickListener(this);
        tx_holding.setOnClickListener(this);
        tx_can_be_redeemed.setOnClickListener(this);
        tx_can_be_transfer.setOnClickListener(this);
        tx_has_finished.setOnClickListener(this);
        tx_apply_fail.setOnClickListener(this);

        //获取屏幕宽度、标题宽度
        WindowManager manager = this.getWindowManager();
        DisplayMetrics outMetrics = new DisplayMetrics();
        manager.getDefaultDisplay().getMetrics(outMetrics);
        int windowWidth = outMetrics.widthPixels;
        subTitleWidth = DisplayUtils.dip2px(this, 85);//一个title的宽度
        int titleBarWidth = subTitleWidth * 6;//整个title的宽度

        //标题栏最大移动距离与第一个需要移动的title
        titleBarHideOffset = titleBarWidth - windowWidth;//未显示出的部分
        if (titleBarHideOffset <0) {
            titleBarHideOffset = 0;
            hideTitleNum = 0;
        } else {//这里逻辑开始略复杂，关键是获取第一个未显示全的title位置
            for (int i = 0; i <6; i++) {
                if (windowWidth  getFragmentList() {
        ArrayList fragmentList = new ArrayList<>();
        //此处省略......
        return fragmentList;
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.tx_applying:
                fragment_view_pager.setCurrentItem(0);
                break;
            case R.id.tx_holding:
                fragment_view_pager.setCurrentItem(1);
                break;
            case R.id.tx_can_be_redeemed:
                fragment_view_pager.setCurrentItem(2);
                break;
            case R.id.tx_can_be_transfer:
                fragment_view_pager.setCurrentItem(3);
                break;
            case R.id.tx_has_finished:
                fragment_view_pager.setCurrentItem(4);
                break;
            case R.id.tx_apply_fail:
                fragment_view_pager.setCurrentItem(5);
                break;
        }
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
    }

    @Override
    public void onPageScrollStateChanged(int state) {
    }

    @Override
    public void onPageSelected(int position) {
        Animation animation = new TranslateAnimation(
                currentIndex * subTitleWidth,  //from X
                position * subTitleWidth,      //to X
                0, 0
        );

        //cursor滑动
        currentIndex = position;
        animation.setFillAfter(true);//动画终止时停留在最后一帧，不然会回到没有执行前的状态
        animation.setInterpolator(new DecelerateInterpolator());//减速动画
        animation.setDuration(300);//动画持续时间0.3秒
        cursor.startAnimation(animation);
        llt_title.getChildAt(position).requestFocus();

        //整体滑动
        if (hideTitleNum > 0) {
            if (position  position * subTitleWidth) {
                    smoothScrollTo(position * subTitleWidth);
                }
            }

            int num = position - firstHideSubTitle;
            if (num >= 0) {//右侧
                int scrollTo = titleBarHideOffset - (hideTitleNum - (num + 1)) * subTitleWidth;
                if (scroll_view.getScrollX()  list;

        public MyFragmentPagerAdapter(FragmentManager fm, ArrayList list) {
            super(fm);
            this.list = list;
        }

        @Override
        public FragProductList getItem(int arg0) {
            return list.get(arg0);
        }

        @Override
        public int getCount() {
            return list.size();
        }

    }
}

如果有什么不大明白我们可以讨论，反正能直接用就是了