使用GridView和SimpleAdapter实现手机界面常见的九宫格

首先是两个XML界面：

<?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:id="@+id/MyGridView"
        android:layout_alignParentTop="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:stretchMode="columnWidth"
        android:numColumns="3" />
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView
        android:id="@+id/ItemImageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:layout_gravity="center"/>
    <TextView
        android:id="@+id/ItemTextView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"/>

</LinearLayout>

然后是Java实现程序：

package com.example.zhoushasha.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

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

public class MainActivity extends AppCompatActivity {
    private GridView mGridView;



    private int[] imageRes = { R.drawable.tu1, R.drawable.tu2,
            R.drawable.tu3,R.drawable.ty4,R.drawable.tu5,R.drawable.tu6,R.drawable.tu7,R.drawable.tu8,R.drawable.tu9 };



    private String[] itemName = { "图1", "图2", "图3", "图4", "图5 ",

            "图6", "图7 ", "图8", "图9"  };

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);



        mGridView = (GridView) findViewById(R.id.MyGridView);

        List<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>();

        int length = itemName.length;

        for (int i = 0; i < length; i++) {

            HashMap<String, Object> map = new HashMap<String, Object>();

            map.put("ItemImageView", imageRes[i]);

            map.put("ItemTextView", itemName[i]);

            data.add(map);

        }

        //为itme.xml添加适配器

        SimpleAdapter simpleAdapter = new SimpleAdapter(MainActivity.this,

                data, R.layout.item, new String[] { "ItemImageView","ItemTextView" },
                new int[] { R.id.ItemImageView,R.id.ItemTextView });

        mGridView.setAdapter(simpleAdapter);

        //为mGridView添加点击事件监听器

        mGridView.setOnItemClickListener(new GridViewItemOnClick());

    }

    //定义点击事件监听器

    public class GridViewItemOnClick implements AdapterView.OnItemClickListener {

        @Override

        public void onItemClick(AdapterView<?> arg0, View view, int position, long arg3) {

            Toast.makeText(getApplicationContext(), position + "",

                    Toast.LENGTH_SHORT).show();

        }

    }

}

运行就可以实现功能