Android中GridView的实现实例

实现效果：

activity文件代码：

 

package com.tmacsky;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class MyGridViewActivity extends Activity {
	//定义图片数组
	private int[] mImages = new int[]{R.drawable.ha,R.drawable.hb,R.drawable.hc,R.drawable.hd,R.drawable.he,R.drawable.hf,R.drawable.hg,R.drawable.hh};
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.gridview);
		GridView gView = (GridView)findViewById(R.id.gView);
		//建立数据源，设置adapter
		gView.setAdapter(new ImageAdapter());
	}
	class ImageAdapter extends BaseAdapter{
		public int getCount() {
			// TODO Auto-generated method stub
			return mImages.length;
		}
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return mImages[position];
		}
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return mImages[position];
		}
		public View getView(int position, View convertView, ViewGroup parent) {
			// TODO Auto-generated method stub
			ImageView imageView = new ImageView(MyGridViewActivity.this);
			imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
			imageView.setPadding(5, 5, 5, 5);
			imageView.setImageResource(mImages[position]);
			return imageView;
		}
	}
}

对应gridview.xml的代码：

 

 

<?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" >
    <GridView 
        android:horizontalSpacing="2dp"
        android:verticalSpacing="2dp"
        android:columnWidth="100dp"
        android:numColumns="auto_fit"
        android:id="@+id/gView"
        android:layout_width="wrap_content"
		android:layout_height="match_parent"
        />
</LinearLayout>

更多详情参看官方帮助文档里的GridView源码：