Android 横向列表GridView 实现横向滚动

Android 横向列表实现，可左右滑动，如下图

 

1.主界面布局代码：activity_main.xml

a.包裹HorizontalScrollView控件是GirdView横向滚动的基本条件
b.GirdView外包裹LinearLayout是java代码中参数设置的必要条件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" >

    <HorizontalScrollView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="5dp" >

        <LinearLayout android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_margin="10dp" >

            <GridView android:id="@+id/grid" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center" android:numColumns="auto_fit" android:stretchMode="spacingWidthUniform" >
            </GridView>
        </LinearLayout>
    </HorizontalScrollView>

</LinearLayout>

2.主界面GridView列表子项布局文件：list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/itemlayout"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/ItemImage"
        android:layout_width="80.0dip"
        android:layout_height="80.0dip"
        android:layout_gravity="center_horizontal"
        android:src="@drawable/china" >
    </ImageView>

    <TextView
        android:id="@+id/tvCity"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Title"
        android:textColor="#000000" >
    </TextView>

    <TextView
        android:id="@+id/tvCode"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="Info"
        android:textColor="#000000" >
    </TextView>

</LinearLayout>

3.java实现代码：MainActivity.java

package com.example.horizontallistview; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.util.DisplayMetrics; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import android.widget.TextView; /*** * * @author ymw * @summary 博客地址欢迎访问： http://www.cnblogs.com/_ymw
 */
public class MainActivity extends Activity { List<CityItem> cityList; RelativeLayout itmel; GridView gridView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); LayoutInflater layoutInflater = (LayoutInflater) this .getSystemService("layout_inflater"); gridView = (GridView) findViewById(R.id.grid); setData(); setGridView(); } /**设置数据*/ private void setData() { cityList = new ArrayList<CityItem>(); CityItem item = new CityItem(); item.setCityName("深圳"); item.setCityCode("0755"); cityList.add(item); item = new CityItem(); item.setCityName("上海"); item.setCityCode("021"); cityList.add(item); item = new CityItem(); item.setCityName("广州"); item.setCityCode("020"); cityList.add(item); item = new CityItem(); item.setCityName("北京"); item.setCityCode("010"); cityList.add(item); item = new CityItem(); item.setCityName("武汉"); item.setCityCode("027"); cityList.add(item); item = new CityItem(); item.setCityName("孝感"); item.setCityCode("0712"); cityList.add(item); cityList.addAll(cityList); } 
 /**设置GirdView参数，绑定数据*/ private void setGridView() { int size = cityList.size(); int length = 100; DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); float density = dm.density; int gridviewWidth = (int) (size * (length + 4) * density); int itemWidth = (int) (length * density); LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( gridviewWidth, LinearLayout.LayoutParams.FILL_PARENT); gridView.setLayoutParams(params); // 设置GirdView布局参数,横向布局的关键
        gridView.setColumnWidth(itemWidth); // 设置列表项宽
        gridView.setHorizontalSpacing(5); // 设置列表项水平间距
 gridView.setStretchMode(GridView.NO_STRETCH); gridView.setNumColumns(size); // 设置列数量=列表集合数
 GridViewAdapter adapter = new GridViewAdapter(getApplicationContext(), cityList); gridView.setAdapter(adapter); } 
 /**GirdView 数据适配器*/ public class GridViewAdapter extends BaseAdapter { Context context; List<CityItem> list; public GridViewAdapter(Context _context, List<CityItem> _list) { this.list = _list; this.context = _context; }
 @Override public int getCount() { return list.size(); } @Override public Object getItem(int position) { return list.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { LayoutInflater layoutInflater = LayoutInflater.from(context); convertView = layoutInflater.inflate(R.layout.list_item, null); TextView tvCity = (TextView) convertView.findViewById(R.id.tvCity); TextView tvCode = (TextView) convertView.findViewById(R.id.tvCode); CityItem city = list.get(position); tvCity.setText(city.getCityName()); tvCode.setText(city.getCityCode()); return convertView; } } public class CityItem { private String cityName; private String cityCode; public String getCityName() { return cityName; } public void setCityName(String cityName) { this.cityName = cityName; } public String getCityCode() { return cityCode; } public void setCityCode(String cityCode) { this.cityCode = cityCode; } } }

 

4.项目代码如下链接：

http://files.cnblogs.com/_ymw/HorizontalListView_%E5%8D%9A%E5%AE%A2%E9%99%84%E4%BB%B6.rar