1、New Android Project->

Project name:Button

Build Target:Android 2.2

Application name:ButtonDemo

Package name:com.b510.textview.activity

Create Activity:MainActivity

Min SDK Version:8

Finish

2、修改MainActivity.java文件

public class MainActive extends Activity {	/** Called when the activity is first created. */	private Button button = null;	@Override	public void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		button = (Button) findViewById(R.id.button1);		button.setOnClickListener(new OnClickListener() {						@Override			public void onClick(View v) {							Toast.makeText(MainActive.this, "你点击了按钮！", Toast.LENGTH_LONG).show();							}		});	}}

 

3、修改main.xml文件