Android GridView 例子

下面介绍GridView，先看看效果

 

 

 

1、显示界面

 

package com.grid.test;

import java.util.ArrayList;
import java.util.List;

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

public class GridTest extends Activity {
	private GridView gridview ;
	private List<GridInfo> list;
	private GridAdapter adapter;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.gridlayout);
        gridview = (GridView) findViewById(R.id.gridview); 
        list = new ArrayList<GridInfo>();
        list.add(new GridInfo("name1"));
        list.add(new GridInfo("name2"));
        list.add(new GridInfo("name3"));
        list.add(new GridInfo("name4"));
        list.add(new GridInfo("name5"));
        list.add(new GridInfo("name6"));
        list.add(new GridInfo("name6"));
        list.add(new GridInfo("name7"));
        list.add(new GridInfo("name8"));
        list.add(new GridInfo("name9"));
        list.add(new GridInfo("name10"));
        adapter = new GridAdapter(this);
        adapter.setList(list);
        gridview.setAdapter(adapter);
    }
}

 

 

2、组件信息

 

package com.grid.test;
/**
 * Copyright (C) 2010,Under the supervision of China Telecom Corporation
 * Limited Guangdong Research Institute
 * The New Vphone Project
 * @Author fonter.yang
 * @Create date：2010-10-11
 * 
 */
public class GridInfo {

	private String name;

	
	public GridInfo(String name) {
		super();
		this.name = name;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
	
}

 

 

 

3、Adapter 实现

 

package com.grid.test;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

/**
 * Copyright (C) 2010,Under the supervision of China Telecom Corporation Limited
 * Guangdong Research Institute The New Vphone Project
 * 
 * @Author fonter.yang
 * @Create date：2010-10-11
 * 
 */
public class GridAdapter extends BaseAdapter {

	private class GridHolder {
		ImageView appImage;
		TextView appName;
	}

	private Context context;

	private List<GridInfo> list;
	private LayoutInflater mInflater;

	public GridAdapter(Context c) {
		super();
		this.context = c;
	}

	public void setList(List<GridInfo> list) {
		this.list = list;
		mInflater = (LayoutInflater) context
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

	}

	public int getCount() {
		// TODO Auto-generated method stub
		return list.size();
	}

	@Override
	public Object getItem(int index) {

		return list.get(index);
	}

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

	@Override
	public View getView(int index, View convertView, ViewGroup parent) {
		GridHolder holder;
		if (convertView == null) {   
			convertView = mInflater.inflate(R.layout.grid_item, null);   
			holder = new GridHolder();
			holder.appImage = (ImageView)convertView.findViewById(R.id.itemImage);
			holder.appName = (TextView)convertView.findViewById(R.id.itemText);
			convertView.setTag(holder);   

		}else{
			 holder = (GridHolder) convertView.getTag();   

		}
		GridInfo info = list.get(index);
		if (info != null) {   
			holder.appName.setText(info.getName());
		}
		return convertView;
	}

}

 

 

4、单个组件的XML

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_height="wrap_content" android:paddingBottom="4dip"
	android:layout_width="fill_parent">
	<ImageView android:layout_height="wrap_content" android:id="@+id/itemImage"
		android:layout_width="wrap_content" android:layout_centerHorizontal="true" android:src="@drawable/icon">
	</ImageView>
	<TextView android:layout_width="wrap_content"
		android:layout_below="@+id/itemImage" android:layout_height="wrap_content"
		android:text="TextView01" android:layout_centerHorizontal="true"
		android:id="@+id/itemText">
	</TextView>
</RelativeLayout> 

 

 

5、显示界面的XML

 

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@+id/gridview" android:layout_width="fill_parent"
	android:layout_height="fill_parent" android:numColumns="auto_fit"
	android:verticalSpacing="10dp" android:horizontalSpacing="10dp"
	android:columnWidth="90dp" android:stretchMode="columnWidth"
	android:gravity="center" /> 

 

 

6、源码下载

 

我一直觉得GridView 还存在很多问题

什么问题？

这样的话，事件怎么添加进去呢？

GridAdapter的getView里

还没尝试过GridView的布局方式呢  thanks

setAdapter();
setOnItemClickListener();这样应该行

GridHolder 我的SDK里面怎么没有这个类啊？  我的是 2.1 的。。为什么呢？

GridHolder 是新建的。你看看GridAdapter里就有的。。