Android AlertDialog example

Android 에서 AlertDialog을 생성하고 각 버튼이 눌릴 때 이벤트를 처리하는 예

TestActivity.java

package com.example.androidapp;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;

public class TestActivity extends Activity implements DialogInterface.OnClickListener {
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		AlertDialog alertDlg = null;
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setTitle("안내");
		builder.setMessage("정말로 종료하시겠습니까");
		builder.setIcon(R.drawable.ic_launcher);
		builder.setPositiveButton("예", this);
		builder.setNeutralButton("취소", this);
		builder.setNegativeButton("아니오", this);
		alertDlg = builder.create();
		alertDlg.show();
	}

	public void onClick(DialogInterface dialog, int which) {
		String msg = null;
		switch(which) {
		case Dialog.BUTTON_POSITIVE:
			msg = "YES "+which;
			break;
		case Dialog.BUTTON_NEUTRAL:
			msg = "CANCEL "+which;
			break;
		case Dialog.BUTTON_NEGATIVE:
			msg = "NO "+which;
			break;
		}
		Toast.makeText(this, "이용자 선택:"+msg, Toast.LENGTH_LONG).show();
	}
}