安卓第三次作业

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

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

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="bottom"

android:orientation="vertical"

tools:context="com.xg.xgshopcartdemo.MainActivity">

<android.support.v7.widget.RecyclerView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="1"

android:id="@+id/recycleview"></android.support.v7.widget.RecyclerView>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="60dp"

android:orientation="horizontal">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="0.8"

android:id="@+id/ll_selectAll"

android:layout_marginLeft="20dp">

<ImageView

android:layout_width="30dp"

android:layout_height="match_parent"

android:id="@+id/iv_selectAll"

android:src="@drawable/shopcart_selected"/>

<TextView

android:layout_width="50dp"

android:layout_height="match_parent"

android:gravity="center"

android:id="@+id/tv_selectAll"

android:text="全选"/>

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="0.5"

android:orientation="vertical">

<TextView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="bottom"

android:layout_weight="1"

android:id="@+id/tv_allPrice"

android:textColor="@android:color/holo_red_dark"

android:text="总价：17.0元"/>

<TextView

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="top"

android:id="@+id/tv_allGoodsNum"

android:layout_weight="1"

android:text="共4件商品"/>

</LinearLayout>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:layout_weight="0.9">

<Button

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

android:id="@+id/btn_commit"

android:textColor="@android:color/holo_red_dark"

android:text="去结算"/>

</LinearLayout>

</LinearLayout>

</LinearLayout>

1.2，其次我们还得画一个布局，即里面Item的布局

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

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

android:orientation="vertical" android:layout_width="match_parent"

android:layout_height="wrap_content">

<!--shop-->

<LinearLayout

android:layout_width="match_parent"

android:layout_height="50dp"

android:id="@+id/ll_shopcart_header"

android:orientation="horizontal">

<ImageView

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:src="@drawable/shopcart_selected"

android:id="@+id/iv_shopSelect"

android:layout_marginLeft="20dp"/>

<ImageView

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:id="@+id/iv_shopImag"

android:src="@drawable/shopcart_entershop"

android:layout_marginLeft="20dp"/>

<TextView

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:gravity="center_vertical"

android:id="@+id/tv_shopName"

android:text="XX店铺"/>

</LinearLayout>

<!--goods-->

<LinearLayout

android:layout_width="match_parent"

android:layout_height="100dp"

android:orientation="horizontal"

android:layout_marginLeft="50dp">

<ImageView

android:layout_width="wrap_content"

android:layout_height="match_parent"

android:id="@+id/iv_goodsSelect"

android:src="@drawable/shopcart_selected" />

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="right"

android:orientation="horizontal">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical">

<TextView

android:layout_width="match_parent"

android:layout_height="20dp"

android:layout_marginLeft="70dp"

android:gravity="center_vertical"

android:id="@+id/tv_goodsName"

android:text="商品名称"/>

<TextView

android:layout_width="match_parent"

android:layout_height="20dp"

android:layout_marginLeft="70dp"

android:gravity="center_vertical|right"

android:id="@+id/tv_goodsPrice"

android:textColor="@android:color/holo_red_dark"

android:text="¥1.0"/>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="horizontal">

<ImageView

android:layout_width="80dp"

android:layout_height="match_parent"

android:layout_marginLeft="70dp"