Android hello world实例

Android hello world example 展示了开发Android几个过程：

开发环境需要：JDK 1.6
Eclipse IDE 3.7 , Indigo
Android SDK

1.安装Install Android SDK

http://developer.android.com/sdk/index.html

2.安装Install ADT Eclipse plugin
在Eclipse的Help->Install New Software,输入https://dl-ssl.google.com/android/eclipse/

3.创建Create an Android Virtual Device (AVD)
在Eclipse工具条选择Android Virtual Device (AVD)，点按new创建一个AVD。

4.创建Create Android Project with Eclipse (Wizard)
在Eclipse中File -> New -> Project….”, “Android Project“

5.编码Code it…
HelloWorldActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
 
public class HelloWorldActivity extends Activity {
    /** Called when the activity is first created. */
    @[author]Override[/author]
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
 
        TextView text = new TextView(this);
        text.setText("Hello World, Android - mkyong.com");
        setContentView(text);
    }
}
<p class="indent">

6.运行Start it in Android Virtual Device (AVD)

案例源码下载：

http://www.mkyong.com/wp-content/uploads/2011/11/Android-HelloWorld.zip