从零开始搭建Android手机系统开发环境

六、创建测试程序

打开Eclispe的开发环境，选择File->New->Project->Android->Android Project

编写Java程序

HelloAndroid

package cn.younext;

import android.app.Activity;

import android.widget.TextView;

import android.os.Bundle;

public class HelloWorld extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//setContentView(R.layout.main);

TextView tv=new TextView(this);

tv.setText("Hello Android, I'm chunting");

setContentView(tv);

}

}

运行Run->Run Configurations

在Target中选择创建的AVD，点击Apply，最后点击Run

最终的效果图如下：