自定義對話方塊MyDialog類繼承Dialog類：

package com.example.jjy.myapplication;
import android.app.Dialog;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
/**
 * Created by jjy on 16-5-15.
 */
public class MyDialog extends Dialog{
    private Button positiveButton, negativeButton;
    private TextView contenttv;

    public MyDialog(Context context) {
        super(context,R.style.mydialog);
        View view = LayoutInflater.from(getContext()).inflate(R.layout.mydialoglayout, null);  //通過LayoutInflater獲取佈局
        contenttv = (TextView) view.findViewById(R.id.title);
        positiveButton = (Button) view.findViewById(R.id.acceptbtn);
        negativeButton = (Button) view.findViewById(R.id.refusebtn);
        setContentView(view);  //設定view
    }
    //設定內容
    public void setContent(String content) {
        contenttv.setText(content);
    }
    //確定按鈕監聽
    public void setOnPositiveListener(View.OnClickListener listener){
        positiveButton.setOnClickListener(listener);
    }

    //否定按鈕監聽
    public void setOnNegativeListener(View.OnClickListener listener){
        negativeButton.setOnClickListener(listener);
    }
}
 

R.style.mydialog 對話方塊屬性在 values/styles.xml中設定：

<resources>
    <style name="mydialog" parent="android:style/Theme.Dialog">
        <!-- 背景透明 -->
        <item name="android:windowBackground">@android:color/transparent</item>
        <!-- 沒有標題 -->
        <item name="android:windowNoTitle">true</item>
        <!-- 背景模糊 -->
        <item name="android:backgroundDimEnabled">true</item>
    </style>
</resources>
 

R.layout.mydialoglayout 佈局檔案：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rootView"
    android:layout_width="200dp"
    android:layout_height="100dp"
    android:orientation="vertical"
    android:background="@drawable/mydialogshape"
    >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/toprl"
        android:layout_above="@+id/bottomoll"

        >
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/title"
            android:text="確定嗎?"

            android:textColor="@color/black"
            android:layout_centerVertical="true"
            android:layout_centerHorizontal="true" />

    </RelativeLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/grey"
        android:layout_below="@+id/toprl"
        android:layout_marginBottom="10dp"
        />

    <RelativeLayout
        android:id="@+id/bottomoll"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true"
        >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <Button
                android:id="@+id/acceptbtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="確定"
                android:textColor="@color/orange"
                android:background="@null"
                android:layout_marginTop="12dp"
                android:textSize="18sp"
                />

            <View
                android:layout_width="1dp"
                android:layout_height="match_parent"
                android:background="@color/grey"
                />
            <Button
                android:id="@+id/refusebtn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="取消"
                android:textColor="@color/orange"
                android:background="@null"
                android:textSize="18sp"
                android:layout_marginTop="12dp"
                android:layout_marginBottom="6dp"
                />
        </LinearLayout>
    </RelativeLayout>
</RelativeLayout>
 

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <solid android:color="@android:color/white" />
    <corners android:radius="16dp" />
</shape>

最後在Activity中呼叫：

package com.example.jjy.myapplication;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    private Button button;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button=(Button)findViewById(R.id.btn);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                MyDialog myDialog=new MyDialog(MainActivity.this);
                myDialog.getWindow().setLayout(800,450); //對話方塊大小應根據螢幕大小調整
                myDialog.setContent("自定義對話方塊");
                myDialog.setOnPositiveListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        Toast.makeText(MainActivity.this,"YES", Toast.LENGTH_SHORT).show();
                    }
                });
                myDialog.setOnNegativeListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        Toast.makeText(MainActivity.this,"NO",Toast.LENGTH_SHORT).show();
                    }
                });
                myDialog.show();
            }
        });
    }
}