GridView 弄的 StringGrid

1、

主界面 layout_main.xml ：

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="z.stringgridandroidz.MainActivity" >

    <HorizontalScrollView
        android:id="@+id/horizontalScrollView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <GridView android:id="@+id/gridView1"
                android:layout_height="wrap_content" 
                android:layout_width="match_parent" 
                android:numColumns="5">
            </GridView>

        </LinearLayout>
    </HorizontalScrollView>
</RelativeLayout>

ZC：<LinearLayout/> 和 <HorizontalScrollView/> 是一起的，界面上也就一个 <GridView/>...

2、

在 res-->layout 中添加一个 items.xml 用于每个GridView单元格的样式，内容为：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/LinearLayout01"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" android:background="#555555"
    android:layout_height="wrap_content">
    <TextView android:layout_below="@+id/ItemImage" android:text="TextView01"
        android:id="@+id/ItemText" android:bufferType="normal"
        android:singleLine="true" android:background="#FFFFFF"
        android:layout_width="fill_parent" android:gravity="center"
        android:layout_margin="1dip" android:layout_gravity="center"
        android:layout_height="wrap_content">
    </TextView>
</LinearLayout>

3、

测试代码：

package z.stringgridandroidz;

import java.util.ArrayList;
import java.util.HashMap;

import android.app.Activity;
import android.os.Bundle;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.SimpleAdapter;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
    // ***
        
        // 数据源
        ArrayList<HashMap<String, String>> dateSource = new ArrayList<HashMap<String, String>>();
        // 向数据源中添加数据
        for (int i = 0; i < 1600; i++)
        {
            HashMap<String, String> map = new HashMap<String, String>();
            map.put("ItemText", Integer.toString(i)+"_123456789");
            dateSource.add(map);
        }
        
        // Adapter
        SimpleAdapter simpleAdapter = new SimpleAdapter(MainActivity.this,
                dateSource,// 数据来源
                R.layout.items,//XML实现
                new String[] { "ItemText" },// 动态数组与ImageItem对应的子项
                new int[] { R.id.ItemText });
 
        GridView gv = (GridView) this.findViewById(R.id.gridView1);  
        gv.setAdapter(simpleAdapter);
        
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(  
                800, LinearLayout.LayoutParams.WRAP_CONTENT);  
        gv.setLayoutParams(params);
        
        simpleAdapter.notifyDataSetChanged();
    }

}

4、

缺点：

4.1、

GridView 的宽度，需要自己在程序里面设置：

“

LinearLayout.LayoutParams params = new LinearLayout.LayoutParams( 800, LinearLayout.LayoutParams.WRAP_CONTENT );
gv.setLayoutParams(params);

”

4.2、

GridView 默认的 垂直的滚动条是在最右边的...

需要将 GridView 翻到最右边才能看到垂直的滚动条...

X