java翻译到mono C#实现系列(2) mono实现GridView 横向滚动

群里的朋友问GridView 横向滚动怎么实现,我就百度了,参考http://blog.csdn.net/lonely_fireworks/article/details/7841134写了个mono版的.

本人菜鸟,请各位多多指点,不足之处,请斧正.没啥技术含量,就权当丰富下mono for android的小代码.

目录结构

activity_main.axml 代码:

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
        <HorizontalScrollView
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:scrollbars="none" >

            <LinearLayout
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal" >
                
                <GridView
                    android:id="@+id/gridview"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center"
                    android:columnWidth="90dp"
                    android:stretchMode="columnWidth"
                    >
                </GridView>
            </LinearLayout>
        </HorizontalScrollView>
    </LinearLayout>

gridview_item.axml 代码:

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

        <ImageView
            android:layout_width="100dp"
            android:layout_height="100dp"
            android:background="#00ff00" />

        <TextView
            android:id="@+id/item_textview"
            android:layout_width="100dp"
            android:layout_height="20dp"
            android:gravity="center"
            android:text="TextView"
            />

    </LinearLayout>

Activity1.cs 代码:

using System;

using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Util;
using System.Collections.Generic;
using System.Collections;
//GridView 横向滚动
//参考http://blog.csdn.net/lonely_fireworks/article/details/7841134
namespace AndroidApplication1
{
    [Activity(Label = "AndroidApplication1", MainLauncher = true, Icon = "@drawable/icon")]
    public class Activity1 : Activity
    {
        private GridView gridView;
        private LayoutInflater inflater;
        private IList<string> dataList = new List<string>();

        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.activity_main);

            gridView = FindViewById<GridView>(Resource.Id.gridview);
            for (int i = 0; i < 10; i++)
            {
                dataList.Add("测试" + i);
            }
            inflater = (LayoutInflater)this.GetSystemService(Context.LayoutInflaterService);
            GridViewAdapter adapter = new GridViewAdapter(this, dataList);
            gridView.Adapter = adapter;
            int size = dataList.Count;
            DisplayMetrics dm = new DisplayMetrics();
            WindowManager.DefaultDisplay.GetMetrics(dm);
            float density = dm.Density;
            int allWidth = (int)(110 * size * density);
            int itemWidth = (int)(100 * density);
            LinearLayout.LayoutParams par = new LinearLayout.LayoutParams(allWidth, LinearLayout.LayoutParams.FillParent);
            gridView.LayoutParameters = par;
            gridView.SetColumnWidth(itemWidth);
            gridView.SetHorizontalSpacing(10);
            gridView.SetNumColumns(size);
        }

        public override bool OnCreateOptionsMenu(IMenu menu)
        {
            MenuInflater.Inflate(Resource.Layout.activity_main, menu);
            return true;
        }
        public class GridViewAdapter : BaseAdapter
        {
            private Activity context = null;
            public IList<string> dataList = null;

            /// <summary>
            /// 默认构造器
            /// </summary>
            public GridViewAdapter()
                : base()
            {

            }

            /// <summary>
            /// 带参构造器
            /// </summary>
            /// <param name="context"></param>
            /// <param name="list"></param>
            public GridViewAdapter(Activity context, IList<string> dataList)
                : base()
            {
                this.context = context;
                this.dataList = dataList;
            }

            public override int Count
            {
                get
                {
                    return dataList.Count;
                }
            }

            public override long GetItemId(int position)
            {
                return position;
            }

            public override Java.Lang.Object GetItem(int position)
            {
                return position;
            }

            public override View GetView(int position, View convertView, ViewGroup parent)
            {
                convertView = context.LayoutInflater.Inflate(Resource.Layout.gridview_item, null);
                TextView textView = (TextView)convertView
                                    .FindViewById(Resource.Id.item_textview);
                String str = dataList[position];
                textView.SetText(dataList[position], TextView.BufferType.Normal);
                return convertView;
            }
        }
    }
}

原java版实现 代码:

public class MainActivity extends Activity
{

    private GridView gridView;
    private LayoutInflater inflater;
    private List<String> dataList = new ArrayList<String>();

    //    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        gridView = (GridView) this.findViewById(R.id.gridview);
        for (int i = 0; i < 10; i++)
        {
            dataList.add("测试" + i);
        }
        inflater = (LayoutInflater) this
                   .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        GridViewAdapter adapter = new GridViewAdapter();
        gridView.setAdapter(adapter);
        int size = dataList.size();
        DisplayMetrics dm = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);
        float density = dm.density;
        int allWidth = (int) (110 * size * density);
        int itemWidth = (int) (100 * density);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
            allWidth, LinearLayout.LayoutParams.FILL_PARENT);
        gridView.setLayoutParams(params);
        gridView.setColumnWidth(itemWidth);
        gridView.setHorizontalSpacing(10);
        gridView.setStretchMode(GridView.NO_STRETCH);
        gridView.setNumColumns(size);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    final class GridViewAdapter extends BaseAdapter
    {

        @Override
        public int getCount()
        {
            return dataList.size();
        }

        @Override
        public Object getItem(int position)
        {
            return dataList.get(position);
        }

        @Override
        public long getItemId(int position)
        {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent)
        {
            convertView = inflater.inflate(R.layout.gridview_item, null);
            TextView textView = (TextView) convertView
                                .findViewById(R.id.item_textview);
            String str = dataList.get(position);
            textView.setText(str);
            return convertView;
        }

    }
}

源码下载: http://www.400gb.com/file/26907440