Android使用Scroll+Fragment仿京东分类效果

 本文实例为大家分享了Android九宫格图片展示的具体代码，供大家参考，具体内容如下

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

源码下载：Scroll+Fragment仿京东分类效果

来源：http://blog.csdn.net/Zheng_Jiao/article/details/51396647