XiaoxintongSystemOS/app/src/main/res/layout/activity_pay.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".activity.PayActivity">

    <data>

        <variable
            name="wxpayBean"
            type="com.uiuios.aios.bean.WxpayBean" />
    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/white">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout21"
            android:layout_width="match_parent"
            android:layout_height="@dimen/dp_32"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <ImageView
                android:id="@+id/iv_exit"
                android:layout_width="@dimen/dp_24"
                android:layout_height="@dimen/dp_24"
                android:layout_marginStart="@dimen/dp_16"
                android:adjustViewBounds="true"
                android:scaleType="centerCrop"
                android:src="@drawable/back_black"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:maxLines="1"
                android:text="商品支付"
                android:textColor="@color/black"
                android:textSize="@dimen/sp_15"
                android:textStyle="bold"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

        </androidx.constraintlayout.widget.ConstraintLayout>

        <ImageView
            android:id="@+id/iv_goods"
            android:layout_width="@dimen/dp_100"
            android:layout_height="@dimen/dp_100"
            android:layout_marginTop="@dimen/dp_16"
            android:adjustViewBounds="true"
            android:scaleType="centerCrop"
            app:error="@{@drawable/goods_placeholder}"
            app:imageUrl="@{wxpayBean.goods_img}"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout21" />

        <TextView
            android:id="@+id/tv_order_id"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp_32"
            android:text="订单编号"
            android:maxLines="1"
            android:textColor="@color/black"
            android:textSize="@dimen/sp_10"
            app:layout_constraintEnd_toEndOf="@+id/iv_goods"
            app:layout_constraintStart_toStartOf="@+id/iv_goods"
            app:layout_constraintTop_toBottomOf="@+id/iv_goods" />

        <TextView
            android:id="@+id/textView13"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp_32"
            android:text="扫一扫付款"
            android:textColor="@color/black"
            android:textSize="@dimen/sp_15"
            android:textStyle="bold"
            app:layout_constraintEnd_toEndOf="@+id/tv_order_id"
            app:layout_constraintStart_toStartOf="@+id/tv_order_id"
            app:layout_constraintTop_toBottomOf="@+id/tv_order_id" />

        <TextView
            android:id="@+id/tv_price"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp_16"
            android:text="@{wxpayBean.price}"
            android:textColor="@color/red"
            android:textSize="@dimen/sp_18"
            app:layout_constraintEnd_toEndOf="@+id/tv_order_id"
            app:layout_constraintStart_toStartOf="@+id/tv_order_id"
            app:layout_constraintTop_toBottomOf="@+id/textView13"
            tools:text="100.00" />

        <ImageView
            android:id="@+id/iv_wx_qrcode"
            android:layout_width="@dimen/dp_100"
            android:layout_height="@dimen/dp_100"
            android:layout_marginTop="@dimen/dp_16"
            android:adjustViewBounds="true"
            android:scaleType="centerCrop"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/tv_price" />

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/constraintLayout22"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dp_32"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/iv_wx_qrcode">

            <ImageView
                android:id="@+id/imageView17"
                android:layout_width="@dimen/dp_12"
                android:layout_height="@dimen/dp_10"
                android:adjustViewBounds="true"
                android:scaleType="centerCrop"
                android:src="@drawable/icon_wechat_pay"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="@dimen/dp_8"
                android:maxLines="1"
                android:text="使用微信扫码支付"
                android:textColor="@color/black"
                android:textSize="@dimen/sp_13"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintStart_toEndOf="@+id/imageView17"
                app:layout_constraintTop_toTopOf="parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>

        <TextView
            android:id="@+id/tv_refresh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/qrcode_background"
            android:text="刷新二维码"
            android:textColor="@color/white"
            android:textSize="@dimen/sp_14"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/constraintLayout22" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>