点击自定义对话框就闪退了

<?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="wrap_content"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    android:background="@color/skyblue">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="提示"
        android:textSize="34sp"
        android:textColor="#ffffff"
        android:textStyle="bold"
        android:layout_marginTop="30dp"/>

    <view
        android:layout_width="fill_parent"
        android:layout_height="2dp"
        android:background="#ffffff"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="10dp"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="您确定要退出当前程序吗"
        android:layout_marginTop="10dp"
        android:textColor="#ffffff"
        android:textSize="20sp"/>
    
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="20dp">

        <Button
            android:id="@+id/btn_yes"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="否"
            android:background="#ffffff"
            android:textColor="@color/skyblue"/>

        <Button
            android:id="@+id/btn_no"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="是"
            android:background="#ffffff"
            android:textColor="@color/skyblue"
            android:layout_marginLeft="15dp"/>

    </LinearLayout>

</LinearLayout>