实际开发中，经常会用到Dialog,比如退出时候会弹出是否退出，或者还有一些编辑框也会用Dialog实现，效果图如下：

开发中遇到的问题无非在于如果在Activity中监听这个Dialog中实现的按钮，Dialog类如下，在MyDialog这个类中实现了一个LeaveMyDialogListener接口，用来实现onclick的点击事件：

package com.Ieasy.Tool;import com.Ieasy.ieasyware.R;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;public class MyDialog extends Dialog implements android.view.View.OnClickListener {    private Context context;    private TextView txt;    private Button   btnok,btnedit,btncancle,btnsave;    private LeaveMyDialogListener listener;        public interface LeaveMyDialogListener{           public void onClick(View view);       }           public MyDialog(Context context) {        super(context);        // TODO Auto-generated constructor stub        this.context = context;    }        public MyDialog(Context context,int theme,LeaveMyDialogListener listener) {        super(context,theme);        // TODO Auto-generated constructor stub        this.context = context;        this.listener = listener;    }    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        this.setContentView(com.Ieasy.ieasyware.R.layout.mydialog);        btncancle = (Button)findViewById(R.id.mycancle);        btnedit   = (Button)findViewById(R.id.myedit);        btnok     = (Button)findViewById(R.id.myok);        txt       = (TextView)findViewById(R.id.miaosu);        btnsave   = (Button)findViewById(R.id.mysave);        btncancle.setOnClickListener(this);        btnedit.setOnClickListener(this);        btnok.setOnClickListener(this);        btnsave.setOnClickListener(this);    }    @Override    public void onClick(View v) {        // TODO Auto-generated method stub        listener.onClick(v);    }}

MyDialog dialog = new MyDialog(context,R.style.MyDialog,           new MyDialog.LeaveMyDialogListener() {            @Override            public void onClick(View view) {               switch(view.getId()){                  case R.id.myok:                        break;              case R.id.myedit:              break;              case R.id.mycancle:                                     break;              case R.id.mysave:              dialog.dismiss();                                       default:              break;                     }                    }               });               dialog.show();

TextView text = (TextView) dialog.findViewById(R.id.miaosu);