ViewPager+FragmentStatePagerAdapter 实现菜单

参考：http://www.lcode.org/horizontalscrollviewfragmentfragmentstatepageradapter%E6%89%93%E9%80%A0%E7%BD%91%E6%98%93%E6%96%B0%E9%97%BBtab%E5%8F%8A%E6%BB%91%E5%8A%A8%E9%A1%B5%E9%9D%A2%E6%95%88%E6%9E%9C/

主要代码：

public class GoodsMgrFragment extends BaseFragmentActivity implements ViewPager.OnPageChangeListener {

    ViewPager info_viewpager;
    private List fragments;
    private CNKFixedPagerAdapter mPagerAdater;
    private String[] titles = new String[]{"销售中", "待上架", "审核中", "审核失败"};
    /**
     * 当前选择的分类
     */
    private int mCurClassIndex = 0;
    /**
     * 选择的分类字体颜色
     */
    private int mColorSelected;
    /**
     * 非选择的分类字体颜色
     */
    private int mColorUnSelected;
    /**
     * 水平滚动的Tab容器
     */
    private HorizontalScrollView mScrollBar;
    /**
     * 分类导航的容器
     */
    private ViewGroup mClassContainer;
    /**
     * 水平滚动X
     */
    private int mScrollX = 0;

    int width, height;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_mgr_main);
        initViews();
        initValidata();
    }

    /**
     * 初始化布局控件
     */
    private void initViews() {
        info_viewpager = (ViewPager) findViewById(R.id.info_viewpager);
        mScrollBar = (HorizontalScrollView) findViewById(R.id.horizontal_info);
        mClassContainer = (ViewGroup) findViewById(R.id.linearlayout_container);
        WindowManager wm = (WindowManager) this.getSystemService(Context.WINDOW_SERVICE);
        width = wm.getDefaultDisplay().getWidth();
        height = wm.getDefaultDisplay().getHeight();
    }

    private void initValidata() {
        mColorSelected = getResources().getColor(R.color.text_refund_money);
        mColorUnSelected = getResources().getColor(R.color.text_lv_1);
        //添加Tab标签
        addScrollView(titles);
        mScrollBar.post(new Runnable() {
            @Override
            public void run() {
                mScrollBar.scrollTo(mScrollX, 0);
            }
        });
        fragments = new ArrayList<>();
        for (int i = 0; i < 4; i++) {
            MgrContentFragment oneFragment = new MgrContentFragment();
            Bundle bundle = new Bundle();
            bundle.putString("extra", titles[i]);
            oneFragment.setArguments(bundle);
            fragments.add(oneFragment);
        }

        mPagerAdater = new CNKFixedPagerAdapter(getSupportFragmentManager());
        mPagerAdater.setTitles(titles);
        mPagerAdater.setFragments(fragments);
        info_viewpager.setAdapter(mPagerAdater);
        info_viewpager.setOnPageChangeListener(this);
    }

    /**
     * 动态添加顶部Tab滑动的标签
     *
     * @param titles
     */
    private void addScrollView(String[] titles) {
        LayoutInflater mLayoutInflater = LayoutInflater.from(this);
        final int count = titles.length;
        for (int i = 0; i < count; i++) {
            final String title = titles[i];
            final View view = mLayoutInflater.inflate(R.layout.horizontal_item_layout, null);
            view.setLayoutParams(new LinearLayout.LayoutParams(width / count, LinearLayout.LayoutParams.MATCH_PARENT));
            final TextView tv_goods_type = (TextView) view.findViewById(R.id.tv_goods_type);
            final TextView tv_goods_count = (TextView) view.findViewById(R.id.tv_goods_count);
            tv_goods_type.setText(title);
            if (i == mCurClassIndex) {
                //已经选中
                tv_goods_type.setTextColor(mColorSelected);
                tv_goods_count.setTextColor(mColorSelected);
            } else {
                //未选中
                tv_goods_type.setTextColor(mColorUnSelected);
                tv_goods_count.setTextColor(mColorUnSelected);
            }
            final int index = i;
            //点击顶部Tab标签，动态设置下面的ViewPager页面
            view.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    //首先设置当前的Item为正常状态
                    View currentItem = mClassContainer.getChildAt(mCurClassIndex);
                    ((TextView) (currentItem.findViewById(R.id.tv_goods_type))).setTextColor(mColorUnSelected);
                    ((TextView) (currentItem.findViewById(R.id.tv_goods_count))).setTextColor(mColorUnSelected);
                    mCurClassIndex = index;
                    //设置点击状态
                    tv_goods_type.setTextColor(mColorSelected);
                    tv_goods_count.setTextColor(mColorSelected);
                    //跳转到指定的ViewPager
                    info_viewpager.setCurrentItem(mCurClassIndex);
                }
            });
            mClassContainer.addView(view);
        }
    }

    //下面三个回调方法 分别是在ViewPager进行滑动的时候调用
    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
        //首先设置当前的Item为正常状态
        View preView = mClassContainer.getChildAt(mCurClassIndex);
        ((TextView) (preView.findViewById(R.id.tv_goods_type))).setTextColor(mColorUnSelected);
        ((TextView) (preView.findViewById(R.id.tv_goods_count))).setTextColor(mColorUnSelected);
        mCurClassIndex = position;
        //设置当前为选中状态
        View currentItem = mClassContainer.getChildAt(mCurClassIndex);
        ((TextView) (currentItem.findViewById(R.id.tv_goods_type))).setTextColor(mColorSelected);
        ((TextView) (currentItem.findViewById(R.id.tv_goods_count))).setTextColor(mColorSelected);
        //这边移动的距离 是经过计算粗略得出来的
        mScrollX = currentItem.getLeft() - 300;
        mScrollBar.post(new Runnable() {
            @Override
            public void run() {
                mScrollBar.scrollTo(mScrollX, 0);
            }
        });
    }

    @Override
    public void onPageScrollStateChanged(int state) {

    }
}

布局文件：fragment_mgr_main

xml version="1.0" encoding="utf-8"?>
xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:background="@color/white"
              android:orientation="vertical">

    layout="@layout/include_title_bar"/>

    layout="@layout/include_view_x1px"/>
    
            android:id="@+id/horizontal_info"
        android:layout_width="fill_parent"
        android:layout_height="48dp"
        android:scrollbars="none">
        
                    android:id="@+id/linearlayout_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">
        
    

    layout="@layout/include_view_x10dp"/>

            android:id="@+id/info_viewpager"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"/>