[Android]_ch4.3_AlertDialog訊息元件介紹

[Android]_ch4.3_AlertDialog訊息元件介紹



package com.derek.ch11_dialog;



import android.app.Activity;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;





public class MainActivity extends Activity {

Button btn1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        btn1=(Button)findViewById(R.id.button1);

        btn1.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

AlertDialog.Builder AB=new AlertDialog.Builder(MainActivity.this);

AB.setTitle("結束程式");

AB.setIcon(R.drawable.ic_launcher);

AB.setMessage("按下確定即可結束程式");

AB.setPositiveButton("確定", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

finish();

}

});

AB.setNegativeButton("取消", new DialogInterface.OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

dialog.cancel();

}

});

AB.setCancelable(false);

AB.show();

}

});

    }





}