Android布局:GridView

Layout文件gridview_demo.xml

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android=""
    android:id="@+id/gridViewDemo"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:numColumns="auto_fit"
    android:gravity="center"
    android:textAlignment="center"
    android:columnWidth="50dp"
    android:stretchMode="columnWidth" >
</GridView>

GridViewActivity类：

package com.example.twiter;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.TextView;
import android.widget.Toast;

public class GridViewActivity extends Activity {

    GridView gridView;

    static final String[] numbers = new String[] {
            "A", "B", "C", "D", "E",
            "F", "G", "H", "I", "J",
            "K", "L", "M", "N", "O",
            "P", "Q", "R", "S", "T",
            "U", "V", "W", "X", "Y", "Z"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {

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

        gridView = (GridView) findViewById(R.id.gridViewDemo);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, numbers);

        gridView.setAdapter(adapter);

        gridView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v,
                int position, long id) {
               Toast.makeText(getApplicationContext(),
                ((TextView) v).getText(), Toast.LENGTH_SHORT).show();
            }
        });
    }

}

AndroidManifest.xml文件中添加以下行：

<activity android:name="com.example.twiter.GridViewActivity">
              <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
         </activity>

效果图：