Android 自定义Dialog类，并在Activity中实现按钮监听。

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);

    }

}

布局文件如下：

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >



    <LinearLayout

        android:layout_width="250dp"

        android:layout_height="wrap_content"

        android:layout_margin="20dp"

        android:background="@drawable/night_biz_subscribe_media_recommend_item_bg"

        android:orientation="vertical" >



        <TextView

            android:id="@+id/miaosu"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:paddingLeft="20dp"

            android:text="描述"

            android:textColor="@color/whitesmoke"

            android:textSize="20sp" />



        <LinearLayout

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:layout_marginTop="50dp"

            android:orientation="horizontal" >



            <Button

                android:id="@+id/myok"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:layout_weight="1"

                android:background="@drawable/btnclick"

                android:textColor="@color/whitesmoke"

                android:text="确定" />



            <Button

                android:id="@+id/myedit"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:layout_weight="1"

                android:background="@drawable/btnclick"

                android:textColor="@color/whitesmoke"

                android:text="编辑" />

            

            <Button

                android:id="@+id/mysave"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:layout_weight="1"

                android:background="@drawable/btnclick"

                android:textColor="@color/whitesmoke"

                android:text="保存" />



            <Button

                android:id="@+id/mycancle"

                android:layout_width="match_parent"

                android:layout_height="match_parent"

                android:layout_weight="1"

                android:background="@drawable/btnclick"

                android:textColor="@color/whitesmoke"

                android:text="取消" />

            

        </LinearLayout>

    </LinearLayout>



</LinearLayout>

引用的style：

 <style name="MyDialog" parent="@android:Theme.Dialog">

        <item name="android:windowFrame">@null</item>

        <item name="android:windowNoTitle">true</item> 

        <item name="android:windowBackground">@drawable/night_biz_subscribe_media_recommend_item_bg</item>

        <item name="android:windowIsFloating">true</item>

        <item name="android:windowContentOverlay">@null</item>

    </style>

最后在Activity中调用，通过LeaveMyDialogListener 接口来实现在Activity中的点击事件

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();

如果想获得Dialog中的TextView控件可以这样获取，给TextView赋值时候一定要在Dialog show了之后在赋值，你懂得。

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