Android 封装Dialog

package com.example.myandroid01;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
/**
 * Android 封装Dialog
 * @Describe: 
 * @package: com.example.myandroid01
 * @author shaobn
 * @date 2015-9-14 下午2:35:49
 */
public class MainActivity extends ActionBarActivity {
    private Button button1;
    private Button button2;
    private CustomDialog cdCustomDialog;
    private static final String TITLE = "Warning";
    private static final String MESSAGE = "确定删除？";
    private static final String BUTTONNAME = "确定";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1 = (Button) this.findViewById(R.id.button1);
        button2 = (Button) this.findViewById(R.id.button2);
        button1.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                cdCustomDialog = new CustomDialog(MainActivity.this);
                cdCustomDialog.createDialog(TITLE,MESSAGE, BUTTONNAME,new DialogInter() {
                    
                    @Override
                    public void callback(boolean flag) {
                        // TODO Auto-generated method stub
                        Toast.makeText(getApplicationContext(), "已点击", 1).show();
                    }
                });
            }
        });
        button2.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                cdCustomDialog = new CustomDialog(MainActivity.this);
                cdCustomDialog.toastDialog("sure");
            }
        });
    }    
}

package com.example.myandroid01;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.widget.Toast;
/**
 * 自定义dialog类
 * @Describe: 
 * @package: com.example.myandroid01
 * @author shaobn
 * @date 2015-9-14 下午2:36:17
 */
class CustomDialog {
    private Context context;
    private AlertDialog.Builder builder;
    public CustomDialog(Context context) {
        // TODO Auto-generated constructor stub
        this.context = context;
    }
    public void createDialog(String title,String message,String buttonName,final DialogInter dialogInter){
        builder = new AlertDialog.Builder(context);
        builder.setTitle(title);
        builder.setMessage(message);
        builder.setPositiveButton(buttonName, new OnClickListener() {
            
            @Override
            public void onClick(DialogInterface arg0, int arg1) {
                // TODO Auto-generated method stub
                dialogInter.callback(true);
            }
        });
        builder.create().show();
    }
    public void toastDialog(String message){
        Toast.makeText(context, message,Toast.LENGTH_LONG).show();
    }
    
}
interface DialogInter{
        void callback(boolean flag);
    }