Android 控件GridView的使用

java测试代码：

package com.example.gridview;

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

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.os.Bundle;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.SimpleAdapter;

public class MainActivity extends Activity {

private ArrayList<HashMap<String, Object>> data;
private String[] iconName = { "通讯录", "日历", "照相机", "时钟", "游戏", "短信", "铃声", "设置", "语音", "天气", "浏览器", "视频" };

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
data = new ArrayList<HashMap<String, Object>>();
for (int i = 0; i < iconName.length; i++) {

HashMap<String, Object> map = new HashMap<String, Object>();
map.put("image", R.drawable.ic_launcher);
map.put("icon", iconName[i]);

data.add(map);
}
GridView mGridView = (GridView) findViewById(R.id.gridview);

String[] from = { "image", "icon" };

int[] resource = { R.id.image, R.id.text };
mGridView.setAdapter(new SimpleAdapter(this, data, R.layout.item, from, resource));

}

}

需要的activity_main.xml：

<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"
tools:context="com.example.gridview.MainActivity" >

<!-- numColumns列数设置为自动
columnWidth每列的宽度，也就是Item的宽度
stretchMode缩放与列宽大小同步
-->

<GridView
android:id="@+id/gridview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:columnWidth="80dp"
android:numColumns="auto_fit"
android:stretchMode="columnWidth" >
</GridView>

</LinearLayout>

需要的item.xml:
<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="vertical"
android:padding="10dp"
android:gravity="center"
tools:context="com.example.gridview.MainActivity" >

<ImageView
android:id="@+id/image"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="@drawable/ic_launcher"/>

<TextView
android:id="@+id/text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="文字"/>

</LinearLayout>