GridView

MainActivity.java

package com.example.demo11;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

public class MainActivity extends ActionBarActivity implements OnItemClickListener{

private GridView gridView;
private List<Map<String,Object>>dataList;
private int[]icon={R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher,R.drawable.ic_launcher};
private String[]iconName={"浏览器","日历","照相机","时钟","游戏","短信","铃声","设置","语音","天气","浏览器","视频"};
private SimpleAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridView=(GridView) findViewById(R.id.gridView);
//准备数据源
//新建适配器（SimpleAdapter）
//GridView加载适配器
//GridView配置事件监听器(OnItemClickListener)
dataList=new ArrayList<Map<String,Object>>();
getData();
adapter=new SimpleAdapter(this,getData(),R.layout.item,new String[]{"image","text"},new int[]{R.id.image,R.id.text});
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(this);
}
private List<Map<String,Object>> getData() {
for(int i=0;i<icon.length;i++){
Map<String,Object>map=new HashMap<String,Object>();
map.put("image",icon[i]);
map.put("text",iconName[i]);
dataList.add(map);
}
return dataList;
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(this,"我是"+iconName[position],Toast.LENGTH_SHORT).show();

}

}

activity_main.xml:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#000000"
>

<GridView
android:id="@+id/gridView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numColumns="3"
android:horizontalSpacing="10dp"
android:verticalSpacing="10dp"
></GridView>
</LinearLayout>

item.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"
android:gravity="center"
android:background="#000000"
>


<ImageView
android:src="@drawable/ic_launcher"
android:id="@+id/image"
android:layout_width="60dp"
android:layout_height="60dp"
/>
<TextView
android:id="@+id/text"
android:layout_marginTop="5dp"
android:layout_width="60dp"
android:layout_height="60dp"
android:textColor="#FFFFFF"
android:text="文字"

/>

</LinearLayout>