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

巴特西

Android 横向列表GridView 实现横向滚动

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