android中AlertDialog的使用方法

Android中AlertDialog为一些程序提供了对话框，有些功能能够进一步满足程序的需要。下面举例介绍。

程序如下：

import android.app.Activity;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class A01Activity extends Activity {

Button b;

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

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

b=(Button)findViewById(R.id.button);

b.setOnClickListener(new OnClickListener(){

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

new AlertDialog.Builder(A01Activity.this)

.setTitle(R.string.str_title)

.setIcon(R.drawable.fei)

.setMessage(R.string.str_message)

.setPositiveButton("OK",new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

finish(); //结束该程序的Activity

}

})

//返回该程序的Activity

.setNegativeButton("NO", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

}

}).show();

}

});

}

}