高仿京东分类效果（Scroll+Fragment）

实现思路：首先说下布局，整个是一个横向的线性布局，左边是一个ScrollView,右边是一个FrameLayout,

在代码中动态向ScrollView中添加TextView,然后根据TextView的点击事件使用Fragment替换FrameLayout

首先看下布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    tools:context="www.jdsort.com.jdsort.MainActivity">

    <ScrollView
        android:id="@+id/scrollview"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:scrollbars="none">
        <LinearLayout
            android:id="@+id/linearlayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center_horizontal"
            android:orientation="vertical" />
    </ScrollView>

    <FrameLayout
        android:id="@+id/framelayout"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="3"/>
</LinearLayout>

MainActivity代码：

public class MainActivity extends FragmentActivity implements View.OnClickListener {

    private String[] titles={"常用分类","潮流女装","品牌男装","内衣配饰","家用电器","手机数码","电脑办公","个护化妆","母婴频道","食物生鲜","酒水饮料","家居家纺","整车车品","鞋靴箱包","运动户外","图书","玩具乐器","钟表","居家生活","珠宝饰品","音像制品","家具建材","计生情趣","营养保健","奢侈礼品","生活服务","旅游出行"};
    private ScrollView mScrollView;
    private FrameLayout mFrameLayout;
    //装装ScrollView的item的TextView的数组
    private TextView[] textViewArray;
    //装ScrollView的item的数组
    private View[] views;
    Context context;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        context=this;

        textViewArray=new TextView[titles.length];
        views=new View[titles.length];

        initView();

        getSupportFragmentManager().beginTransaction().replace(R.id.framelayout,new FragmentOne()).commit();
    }

    private void initView() {
        mScrollView= (ScrollView) findViewById(R.id.scrollview);
        addView();
        changeTextColor(0);

        mFrameLayout= (FrameLayout) findViewById(R.id.framelayout);

    }

    /**
     * 给ScrollView添加子View
     */
    private void addView() {
        LinearLayout mLinearLayout= (LinearLayout) findViewById(R.id.linearlayout);

        View view;
        for(int x=0;x<titles.length;x++){
            view = View.inflate(this, R.layout.item_scrollview, null);
            view.setId(x);
            view.setOnClickListener(this);
            TextView tv= (TextView) view.findViewById(R.id.textview);
            tv.setText(titles[x]);
            mLinearLayout.addView(view);

            textViewArray[x]=tv;
            views[x]=view;

        }
    }

    @Override
    public void onClick(View v) {
        ToastUtils.showToast(this,titles[(int) v.getId()]);
        changeTextColor((int) v.getId());
        changeTextLocation((int) v.getId());

        Fragment fragment=null;

        switch (v.getId()){
            case 0:
                fragment=new FragmentOne();
                break;
            case 1:
                fragment=new Fragment1();
                break;
            case 2:
                fragment=new Fragment2();
                break;
            case 3:
                fragment=new Fragment3();
                break;
            case 4:
                fragment=new Fragment4();
                break;
            case 5:
                fragment=new Fragment5();
                break;
            case 6:
                fragment=new Fragment6();
                break;
            case 7:
                fragment=new Fragment7();
                break;
        }
        if(fragment!=null){
            getSupportFragmentManager().beginTransaction().replace(R.id.framelayout,fragment).commit();
        }
    }
    /**
     * 改变textView的颜色
     * @param id
     */
    private void changeTextColor(int id) {
        for (int i = 0; i < textViewArray.length; i++) {
            if(i!=id){
                textViewArray[i].setBackgroundResource(android.R.color.transparent);
                textViewArray[i].setTextColor(0xff000000);
            }else {
                textViewArray[id].setBackgroundResource(android.R.color.white);
                textViewArray[id].setTextColor(0xffff5d5e);
            }
        }

    }

    /**
     * 改变栏目位置
     */
    private void changeTextLocation(int index) {

        //views[clickPosition].getTop()针对其父视图的顶部相对位置
        int x = (views[index].getTop() - mScrollView.getHeight() / 2);
        mScrollView.smoothScrollTo(0, x);
    }

}

源码等上传上去会再次发布链接，如果那里写的不好，欢迎私信，评论指导

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