mainActivity.java
两种显示方式，第一种图片和对应的文字，第二中只显示图片
package com.soft2;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.SimpleAdapter;
public class MainActivity extends Activity {
private int [] imageId=new int []{
R.drawable.img01,R.drawable.img02,R.drawable.img03,
R.drawable.img04,R.drawable.img05,R.drawable.img06,
R.drawable.img07,R.drawable.img08,R.drawable.img09,
R.drawable.img10,R.drawable.img11,R.drawable.img12,
};
//定义并初始化图片id的数组
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//获取GridView组件
GridView gridView=(GridView)findViewById(R.id.gridView1);
/*使用simpleadapter指定要显示的内容*/
//定义并初始化文字内容数组
String [] title=new String []{
"花开富贵", "海天一色", "日出", "天路", "一枝独秀",
"云", "独占鳌头", "蒲公英花", "花团锦簇", "争奇斗艳", "和谐", "林间小路"
};
List<Map<String,Object>> listItems=new ArrayList<Map<String, Object>>();
//通过for循环将图片id和列表项文字放到map中，并添加到list集合中
for(int i=0;i<imageId.length;i++){
Map<String, Object> map=new HashMap<String, Object>();
map.put("imageView1", imageId[i]);
map.put("title", title[i]);
listItems.add(map);//将map对象添加到List集合中
}
SimpleAdapter adapter=new SimpleAdapter(this,listItems,
R.layout.items,new String[]{
"title","imageView1"},
new int []{R.id.textView1,R.id.imageView1});//创建SimpleAdapter
gridView.setAdapter(adapter);//将适配器与gridView关联
/*BaseAdapter adapter=new BaseAdapter() {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ImageView imageView;//声明ImageView的对象
if(convertView==null){
imageView=new ImageView(MainActivity.this);//实例化imageView的对象
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);//设置缩放方式
imageView.setPadding(5, 0, 5, 0);//设置imageview的内边框边距
}else{
imageView=(ImageView)convertView;
}
imageView.setImageResource(imageId[position]);//imageView设置要显示的图片
return imageView;
}
//获得当前选项的ID
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return imageId.length;
}
};
gridView.setAdapter(adapter);//将适配器与gridView关联
*/
}
}
activity_main
<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=".MainActivity" >
<GridView
android:id="@+id/gridView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:stretchMode="columnWidth"
android:numColumns="1" >
</GridView>
</RelativeLayout>
items.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/imageView1"
android:paddingLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="fitCenter"/>
<TextView
android:id="@+id/textView1"
android:padding="5dp"
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
