Android仿京东分类模块左侧分类条目效果

import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.LinearLayout; 
import android.widget.ScrollView; 
import android.widget.TextView; 
import com.frame.R; 
import java.util.ArrayList; 
import java.util.List; 
/** 
* Created by syd on 2016/10/9. 
*/ 
public class TestActivity extends Activity { 
ScrollView sv_test; 
LinearLayout ll_test_contain; 
List<String  goodsList = new ArrayList<String (); 
List<TextView  textViewList = new ArrayList< (); 
List<View  viewList = new ArrayList< (); 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.test_activity_test); 
initViews(); 
initData(); 
} 
/** 
* 初始化控件 
*/ 
private void initViews() { 
sv_test = (ScrollView) findViewById(R.id.sv_test); 
ll_test_contain = (LinearLayout) findViewById(R.id.ll_test_contain); 
} 
protected void initData() { 
goodsList.add("常用分类"); 
goodsList.add("潮流女装"); 
goodsList.add("品牌男装"); 
goodsList.add("内衣配饰"); 
goodsList.add("家用电器"); 
goodsList.add("手机数码"); 
goodsList.add("电脑办公"); 
goodsList.add("个护化妆"); 
goodsList.add("母婴频道"); 
goodsList.add("食物生鲜"); 
goodsList.add("酒水饮料"); 
goodsList.add("家居家纺"); 
goodsList.add("酒水饮料"); 
goodsList.add("整车车品"); 
goodsList.add("运动户外"); 
goodsList.add("图书"); 
goodsList.add("钟表"); 
goodsList.add("居家生活"); 
goodsList.add("珠宝饰品"); 
goodsList.add("音像制品"); 
goodsList.add("家具建材"); 
goodsList.add("计生情趣"); 
goodsList.add("营养保健"); 
goodsList.add("奢侈礼品"); 
goodsList.add("生活服务"); 
goodsList.add("旅游出行"); 
//动态生成每一个条目 
for (int i = 0; i <goodsList.size() ; i++) { 
View view = getLayoutInflater().inflate(R.layout.test_item_scrollview,null); 
view.setOnClickListener(textOnClickListener); 
TextView tv_item_scroll = (TextView) view.findViewById(R.id.tv_item_scroll); 
view.setId(i); 
tv_item_scroll.setText(goodsList.get(i)); 
ll_test_contain.addView(view); 
viewList.add(view); 
textViewList.add(tv_item_scroll); 
} 
changeTextColor(0); 
} 
private View.OnClickListener textOnClickListener = new View.OnClickListener() { 
@Override 
public void onClick(View v) { 
changeTextColor(v.getId()); 
changeTextLocation(v.getId()); 
} 
}; 
//改变点击条目的位置，居中 
private void changeTextLocation(int textPosition) { 
int x = (viewList.get(textPosition).getTop() - sv_test.getHeight()/2 + (viewList.get(textPosition).getHeight() / 2)); 
sv_test.smoothScrollTo(0, x); 
} 
//改变点击条目的颜色 
private void changeTextColor(int textPosition) { 
for (int i = 0; i <textViewList.size() ; i++) { 
textViewList.get(i).setTextColor(0xFF000000); 
textViewList.get(i).setBackgroundColor(0x00000000); 
} 
textViewList.get(textPosition).setTextColor(0xFFFF0000); 
textViewList.get(textPosition).setBackgroundColor(0xFFFFFFFF); 
} 
} 

<?xml version="1.0" encoding="utf-8"?  
<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="match_parent" 
android:layout_height="match_parent"  
<com.frame.activity.TestScrollView 
android:id="@+id/sv_test" 
android:layout_width="80dp" 
android:layout_height="wrap_content"  
<LinearLayout 
android:id="@+id/ll_test_contain" 
android:orientation="vertical" 
android:layout_width="match_parent" 
android:layout_height="wrap_content"  
</LinearLayout  
</com.frame.activity.TestScrollView  
</LinearLayout  

<?xml version="1.0" encoding="utf-8"?  
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" android:layout_width="match_parent" 
android:layout_height="match_parent"   
<TextView 
android:gravity="center" 
android:paddingBottom="16dp" 
android:paddingTop="16dp" 
android:id="@+id/tv_item_scroll" 
android:layout_width="match_parent" 
android:layout_height="wrap_content" /  
<ImageView 
android:background="#cccccc" 
android:layout_width="match_parent" 
android:layout_height="1dp" /  
</LinearLayout