版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請進行舉報或認領(lǐng)
文檔簡介
【移動應(yīng)用開發(fā)技術(shù)】Android如何實現(xiàn)商城購物車功能
在下給大家分享一下Android如何實現(xiàn)商城購物車功能，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！最近公司項目做商城模塊，需要實現(xiàn)購物車功能，主要實現(xiàn)了單選、全選，金額合計，商品刪除，商品數(shù)量加減等功能，先看看效果圖：在這里插入圖片描述一、實現(xiàn)步驟：0、添加依賴庫1.購物車主界面布局文件(activity_main.xml)2.購物車實現(xiàn)邏輯主界面(MainActivity.class)3.使用ExpandableListView,繼承BaseExpandableListAdapter4.購物車數(shù)據(jù)的bean類(ShoppingCarDataBean.class)5.分店鋪實現(xiàn)布局6.購物車中商品Item布局文件二、實現(xiàn)過程：0.添加依賴庫implementation
'com.jakewharton:butterknife:5.1.1'
implementation
'com.google.code.gson:gson:2.2.4'
implementation
'com.github.bumptech.glide:glide:3.7.0'1.購物車主界面布局文件(activity_main.xml)<?xml
version="1.0"
encoding="utf-8"?>
<RelativeLayout
xmlns:android="/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
android:orientation="vertical">
<LinearLayout
android:id="@+id/ll_gouwuche"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ededed"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#ffffff"
android:orientation="vertical">
<ImageView
android:id="@+id/tv_titlebar_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="15dp"
android:padding="5dp"
android:src="@drawable/danghanglan_fanhui"
/>
<TextView
android:id="@+id/tv_titlebar_center"
android:layout_width="200dp"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:ellipsize="end"
android:gravity="center"
android:maxLength="18"
android:singleLine="true"
android:text="購物車"
android:textColor="#2f302b"
android:textSize="17sp"
android:visibility="visible"
/>
<TextView
android:id="@+id/tv_titlebar_right"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:background="@null"
android:gravity="center"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:singleLine="true"
android:text="編輯"
android:textColor="#2f302b"
android:textSize="14sp"
android:visibility="gone"
/>
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_alignParentBottom="true"
android:background="#cccccc"
/>
</RelativeLayout>
<ExpandableListView
android:id="@+id/elv_shopping_car"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#ededed"
android:divider="@null"
android:groupIndicator="@null"
android:scrollbars="none"
android:visibility="gone"
/>
<RelativeLayout
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="54dp"
android:background="#ffffff"
android:visibility="gone">
<LinearLayout
android:id="@+id/ll_select_all"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="horizontal"
android:paddingRight="10dp">
<ImageView
android:id="@+id/iv_select_all"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_gravity="center_vertical"
android:layout_marginLeft="10dp"
android:background="@drawable/gouwuche_unselect_bg"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="6dp"
android:text="全選"
android:textColor="#666666"
android:textSize="12dp"
/>
</LinearLayout>
<Button
android:id="@+id/btn_order"
android:layout_width="125dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
android:background="@drawable/jiarugouwuche_bg"
android:text="結(jié)算"
android:textColor="#ffffff"
android:textSize="16dp"
android:visibility="visible"
/>
<Button
android:id="@+id/btn_delete"
android:layout_width="125dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
android:background="@drawable/jiarugouwuche_bg"
android:text="刪除"
android:textColor="#ffffff"
android:textSize="16dp"
android:visibility="gone"
/>
<RelativeLayout
android:id="@+id/rl_total_price"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_toLeftOf="@id/btn_order"
android:layout_toRightOf="@id/ll_select_all">
<TextView
android:id="@+id/tv_total_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginLeft="2dp"
android:layout_marginRight="10dp"
android:maxLength="12"
android:singleLine="true"
android:text="￥0.00"
android:textColor="#d8b691"
android:textSize="15dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="@id/tv_total_price"
android:text="合計金額："
android:textColor="#555555"
android:textSize="13dp"
/>
</RelativeLayout>
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:background="#cccccc"
/>
</RelativeLayout>
</LinearLayout>
<RelativeLayout
android:id="@+id/rl_no_contant"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:visibility="gone">
<ImageView
android:id="@+id/iv_no_contant"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_centerHorizontal="true"
android:scaleType="centerCrop"
android:src="@drawable/kong_gouwuche"
/>
<TextView
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_below="@+id/iv_no_contant"
android:layout_marginTop="20dp"
android:gravity="center"
android:text="購物車竟然是空的"
android:textColor="#808080"
android:textSize="16dp"
/>
</RelativeLayout>
</RelativeLayout>2.購物車實現(xiàn)邏輯主界面(MainActivity.class)package
com.showly.yglin.shoppingcar;
import
android.content.Context;
import
android.content.DialogInterface;
import
android.os.Bundle;
import
android.support.v7.app.AppCompatActivity;
import
android.view.KeyEvent;
import
android.view.View;
import
android.widget.Button;
import
android.widget.ExpandableListView;
import
android.widget.ImageView;
import
android.widget.LinearLayout;
import
android.widget.RelativeLayout;
import
android.widget.TextView;
import
com.google.gson.Gson;
import
com.showly.yglin.shoppingcar.adapter.ShoppingCarAdapter;
import
com.showly.yglin.shoppingcar.bean.ShoppingCarDataBean;
import
com.showly.yglin.shoppingcar.customview.RoundCornerDialog;
import
com.showly.yglin.shoppingcar.util.ToastUtil;
import
java.util.ArrayList;
import
java.util.List;
import
butterknife.ButterKnife;
import
butterknife.InjectView;
import
butterknife.OnClick;
/**
*
購物車實現(xiàn)
*
主要功能：
*
1.單選、全選；
*
2.合計；
*
3.刪除；
*
4.商品數(shù)量加減；
*/
public
class
MainActivity
extends
AppCompatActivity
{
@InjectView(R.id.tv_titlebar_center)
TextView
tvTitlebarCenter;
@InjectView(R.id.tv_titlebar_right)
TextView
tvTitlebarRight;
@InjectView(R.id.elv_shopping_car)
ExpandableListView
elvShoppingCar;
@InjectView(R.id.iv_select_all)
ImageView
ivSelectAll;
@InjectView(R.id.ll_select_all)
LinearLayout
llSelectAll;
@InjectView(R.id.btn_order)
Button
btnOrder;
@InjectView(R.id.btn_delete)
Button
btnDelete;
@InjectView(R.id.tv_total_price)
TextView
tvTotalPrice;
@InjectView(R.id.rl_total_price)
RelativeLayout
rlTotalPrice;
@InjectView(R.id.rl)
RelativeLayout
rl;
@InjectView(R.id.iv_no_contant)
ImageView
ivNoContant;
@InjectView(R.id.rl_no_contant)
RelativeLayout
rlNoContant;
@InjectView(R.id.tv_titlebar_left)
ImageView
tvTitlebarLeft;
//模擬的購物車數(shù)據(jù)（實際開發(fā)中使用后臺返回的數(shù)據(jù)）
private
String
shoppingCarData
=
"{\n"
+
"
\"code\":
200,\n"
+
"
\"datas\":
[\n"
+
"
{\n"
+
"
\"goods\":
[\n"
+
"
{\n"
+
"
\"goods_id\":
\"111111\",\n"
+
"
\"goods_image\":
\"/58pic/15/62/69/34K58PICbmZ_1024.jpg\",\n"
+
"
\"goods_name\":
\"三國演義\",\n"
+
"
\"goods_num\":
\"2\",\n"
+
"
\"goods_price\":
\"15.00\"\n"
+
"
}\n"
+
"
],\n"
+
"
\"store_id\":
\"1\",\n"
+
"
\"store_name\":
\"書店雜貨鋪\"\n"
+
"
},\n"
+
"
{\n"
+
"
\"goods\":
[\n"
+
"
{\n"
+
"
\"goods_id\":
\"222221\",\n"
+
"
\"goods_image\":
\"/2016/0511/9711205e4c003182edeed83355e6f1c7.jpg\",\n"
+
"
\"goods_name\":
\"西游記\",\n"
+
"
\"goods_num\":
\"2\",\n"
+
"
\"goods_price\":
\"12.00\"\n"
+
"
},\n"
+
"
{\n"
+
"
\"goods_id\":
\"222222\",\n"
+
"
\"goods_image\":
\"/150424/240473-1504240U13615.jpg\",\n"
+
"
\"goods_name\":
\"封神榜\",\n"
+
"
\"goods_num\":
\"1\",\n"
+
"
\"goods_price\":
\"28.00\"\n"
+
"
}\n"
+
"
],\n"
+
"
\"store_id\":
\"2\",\n"
+
"
\"store_name\":
\"亞馬遜書店\"\n"
+
"
},\n"
+
"
{\n"
+
"
\"goods\":
[\n"
+
"
{\n"
+
"
\"goods_id\":
\"333331\",\n"
+
"
\"goods_image\":
\"/20120718/8002769_100147127333_2.jpg\",\n"
+
"
\"goods_name\":
\"水滸傳\",\n"
+
"
\"goods_num\":
\"3\",\n"
+
"
\"goods_price\":
\"18.00\"\n"
+
"
},\n"
+
"
{\n"
+
"
\"goods_id\":
\"333332\",\n"
+
"
\"goods_image\":
\"/58pic/14/71/50/40e58PICy54_1024.jpg\",\n"
+
"
\"goods_name\":
\"封神演義\",\n"
+
"
\"goods_num\":
\"3\",\n"
+
"
\"goods_price\":
\"32.00\"\n"
+
"
},\n"
+
"
{\n"
+
"
\"goods_id\":
\"333333\",\n"
+
"
\"goods_image\":
\"/150518/318750-15051PS40671.jpg\",\n"
+
"
\"goods_name\":
\"軒轅劍\",\n"
+
"
\"goods_num\":
\"3\",\n"
+
"
\"goods_price\":
\"3.80\"\n"
+
"
}\n"
+
"
],\n"
+
"
\"store_id\":
\"3\",\n"
+
"
\"store_name\":
\"三味書屋\"\n"
+
"
}\n"
+
"
]\n"
+
"}";
private
List<ShoppingCarDataBean.DatasBean>
datas;
private
Context
context;
private
ShoppingCarAdapter
shoppingCarAdapter;
@Override
protected
void
onCreate(Bundle
savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.inject(this);
context
=
this;
initExpandableListView();
initData();
}
@OnClick({R.id.tv_titlebar_left,
R.id.tv_titlebar_right})
public
void
onViewClicked(View
view)
{
switch
(view.getId())
{
case
R.id.tv_titlebar_left://刷新數(shù)據(jù)
initData();
break;
case
R.id.tv_titlebar_right://編輯
String
edit
=
tvTitlebarRight.getText().toString().trim();
if
(edit.equals("編輯"))
{
tvTitlebarRight.setText("完成");
rlTotalPrice.setVisibility(View.GONE);
btnOrder.setVisibility(View.GONE);
btnDelete.setVisibility(View.VISIBLE);
}
else
{
tvTitlebarRight.setText("編輯");
rlTotalPrice.setVisibility(View.VISIBLE);
btnOrder.setVisibility(View.VISIBLE);
btnDelete.setVisibility(View.GONE);
}
break;
default:
break;
}
}
/**
*
初始化數(shù)據(jù)
*/
private
void
initData()
{
//使用Gson解析購物車數(shù)據(jù)，
//ShoppingCarDataBean為bean類，Gson按照bean類的格式解析數(shù)據(jù)
/**
*
實際開發(fā)中，通過請求后臺接口獲取購物車數(shù)據(jù)并解析
*/
Gson
gson
=
new
Gson();
ShoppingCarDataBean
shoppingCarDataBean
=
gson.fromJson(shoppingCarData,
ShoppingCarDataBean.class);
datas
=
shoppingCarDataBean.getDatas();
initExpandableListViewData(datas);
}
/**
*
初始化ExpandableListView
*
創(chuàng)建數(shù)據(jù)適配器adapter，并進行初始化操作
*/
private
void
initExpandableListView()
{
shoppingCarAdapter
=
new
ShoppingCarAdapter(context,
llSelectAll,
ivSelectAll,
btnOrder,
btnDelete,
rlTotalPrice,
tvTotalPrice);
elvShoppingCar.setAdapter(shoppingCarAdapter);
//刪除的回調(diào)
shoppingCarAdapter.setOnDeleteListener(new
ShoppingCarAdapter.OnDeleteListener()
{
@Override
public
void
onDelete()
{
initDelete();
/**
*
實際開發(fā)中，在此請求刪除接口，刪除成功后，
*
通過initExpandableListViewData（）方法刷新購物車數(shù)據(jù)。
*
注：通過bean類中的DatasBean的isSelect_shop屬性，判斷店鋪是否被選中；
*
GoodsBean的isSelect屬性，判斷商品是否被選中，
*
（true為選中，false為未選中）
*/
}
});
//修改商品數(shù)量的回調(diào)
shoppingCarAdapter.setOnChangeCountListener(new
ShoppingCarAdapter.OnChangeCountListener()
{
@Override
public
void
onChangeCount(String
goods_id)
{
/**
*
實際開發(fā)中，在此請求修改商品數(shù)量的接口，商品數(shù)量修改成功后，
*
通過initExpandableListViewData（）方法刷新購物車數(shù)據(jù)。
*/
}
});
}
/**
*
初始化ExpandableListView的數(shù)據(jù)
*
并在數(shù)據(jù)刷新時，頁面保持當前位置
*
*
@param
datas
購物車的數(shù)據(jù)
*/
private
void
initExpandableListViewData(List<ShoppingCarDataBean.DatasBean>
datas)
{
if
(datas
!=
null
&&
datas.size()
>
0)
{
//刷新數(shù)據(jù)時，保持當前位置
shoppingCarAdapter.setData(datas);
//使所有組展開
for
(int
i
=
0;
i
<
shoppingCarAdapter.getGroupCount();
i++)
{
elvShoppingCar.expandGroup(i);
}
//使組點擊無效果
elvShoppingCar.setOnGroupClickListener(new
ExpandableListView.OnGroupClickListener()
{
@Override
public
boolean
onGroupClick(ExpandableListView
parent,
View
v,
int
groupPosition,
long
id)
{
return
true;
}
});
tvTitlebarRight.setVisibility(View.VISIBLE);
tvTitlebarRight.setText("編輯");
rlNoContant.setVisibility(View.GONE);
elvShoppingCar.setVisibility(View.VISIBLE);
rl.setVisibility(View.VISIBLE);
rlTotalPrice.setVisibility(View.VISIBLE);
btnOrder.setVisibility(View.VISIBLE);
btnDelete.setVisibility(View.GONE);
}
else
{
tvTitlebarRight.setVisibility(View.GONE);
rlNoContant.setVisibility(View.VISIBLE);
elvShoppingCar.setVisibility(View.GONE);
rl.setVisibility(View.GONE);
}
}
/**
*
判斷是否要彈出刪除的dialog
*
通過bean類中的DatasBean的isSelect_shop屬性，判斷店鋪是否被選中；
*
GoodsBean的isSelect屬性，判斷商品是否被選中，
*/
private
void
initDelete()
{
//判斷是否有店鋪或商品被選中
//true為有，則需要刷新數(shù)據(jù)；反之，則不需要；
boolean
hasSelect
=
false;
//創(chuàng)建臨時的List，用于存儲沒有被選中的購物車數(shù)據(jù)
List<ShoppingCarDataBean.DatasBean>
datasTemp
=
new
ArrayList<>();
for
(int
i
=
0;
i
<
datas.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
datas.get(i).getGoods();
boolean
isSelect_shop
=
datas.get(i).getIsSelect_shop();
if
(isSelect_shop)
{
hasSelect
=
true;
//跳出本次循環(huán)，繼續(xù)下次循環(huán)。
continue;
}
else
{
datasTemp.add(datas.get(i));
datasTemp.get(datasTemp.size()
-
1).setGoods(new
ArrayList<ShoppingCarDataBean.DatasBean.GoodsBean>());
}
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
boolean
isSelect
=
goodsBean.getIsSelect();
if
(isSelect)
{
hasSelect
=
true;
}
else
{
datasTemp.get(datasTemp.size()
-
1).getGoods().add(goodsBean);
}
}
}
if
(hasSelect)
{
showDeleteDialog(datasTemp);
}
else
{
ToastUtil.makeText(context,
"請選擇要刪除的商品");
}
}
/**
*
展示刪除的dialog（可以自定義彈窗，不用刪除即可）
*
*
@param
datasTemp
*/
private
void
showDeleteDialog(final
List<ShoppingCarDataBean.DatasBean>
datasTemp)
{
View
view
=
View.inflate(context,
R.layout.dialog_two_btn,
null);
final
RoundCornerDialog
roundCornerDialog
=
new
RoundCornerDialog(context,
0,
0,
view,
R.style.RoundCornerDialog);
roundCornerDialog.show();
roundCornerDialog.setCanceledOnTouchOutside(false);//
設(shè)置點擊屏幕Dialog不消失
roundCornerDialog.setOnKeyListener(keylistener);//設(shè)置點擊返回鍵Dialog不消失
TextView
tv_message
=
view.findViewById(R.id.tv_message);
TextView
tv_logout_confirm
=
view.findViewById(R.id.tv_logout_confirm);
TextView
tv_logout_cancel
=
view.findViewById(R.id.tv_logout_cancel);
tv_message.setText("確定要刪除商品嗎？");
//確定
tv_logout_confirm.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
roundCornerDialog.dismiss();
datas
=
datasTemp;
initExpandableListViewData(datas);
}
});
//取消
tv_logout_cancel.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
roundCornerDialog.dismiss();
}
});
}
DialogInterface.OnKeyListener
keylistener
=
new
DialogInterface.OnKeyListener()
{
public
boolean
onKey(DialogInterface
dialog,
int
keyCode,
KeyEvent
event)
{
if
(keyCode
==
KeyEvent.KEYCODE_BACK
&&
event.getRepeatCount()
==
0)
{
return
true;
}
else
{
return
false;
}
}
};
}3.使用ExpandableListView,繼承BaseExpandableListAdapterpackage
com.showly.yglin.shoppingcar.adapter;
import
android.content.Context;
import
android.view.View;
import
android.view.ViewGroup;
import
android.widget.BaseExpandableListAdapter;
import
android.widget.Button;
import
android.widget.ImageView;
import
android.widget.LinearLayout;
import
android.widget.RelativeLayout;
import
android.widget.TextView;
import
com.bumptech.glide.Glide;
import
com.showly.yglin.shoppingcar.R;
import
com.showly.yglin.shoppingcar.bean.ShoppingCarDataBean;
import
com.showly.yglin.shoppingcar.util.ToastUtil;
import
java.text.DecimalFormat;
import
java.util.ArrayList;
import
java.util.List;
import
butterknife.ButterKnife;
import
butterknife.InjectView;
/**
*
購物車的adapter
*
因為使用的是ExpandableListView，所以繼承BaseExpandableListAdapter
*/
public
class
ShoppingCarAdapter
extends
BaseExpandableListAdapter
{
private
final
Context
context;
private
final
LinearLayout
llSelectAll;
private
final
ImageView
ivSelectAll;
private
final
Button
btnOrder;
private
final
Button
btnDelete;
private
final
RelativeLayout
rlTotalPrice;
private
final
TextView
tvTotalPrice;
private
List<ShoppingCarDataBean.DatasBean>
data;
private
boolean
isSelectAll
=
false;
private
double
total_price;
public
ShoppingCarAdapter(Context
context,
LinearLayout
llSelectAll,
ImageView
ivSelectAll,
Button
btnOrder,
Button
btnDelete,
RelativeLayout
rlTotalPrice,
TextView
tvTotalPrice)
{
this.context
=
context;
this.llSelectAll
=
llSelectAll;
this.ivSelectAll
=
ivSelectAll;
this.btnOrder
=
btnOrder;
this.btnDelete
=
btnDelete;
this.rlTotalPrice
=
rlTotalPrice;
this.tvTotalPrice
=
tvTotalPrice;
}
/**
*
自定義設(shè)置數(shù)據(jù)方法；
*
通過notifyDataSetChanged()刷新數(shù)據(jù)，可保持當前位置
*
*
@param
data
需要刷新的數(shù)據(jù)
*/
public
void
setData(List<ShoppingCarDataBean.DatasBean>
data)
{
this.data
=
data;
notifyDataSetChanged();
}
@Override
public
int
getGroupCount()
{
if
(data
!=
null
&&
data.size()
>
0)
{
return
data.size();
}
else
{
return
0;
}
}
@Override
public
Object
getGroup(int
groupPosition)
{
return
data.get(groupPosition);
}
@Override
public
long
getGroupId(int
groupPosition)
{
return
groupPosition;
}
@Override
public
View
getGroupView(final
int
groupPosition,
final
boolean
isExpanded,
View
convertView,
ViewGroup
parent)
{
GroupViewHolder
groupViewHolder;
if
(convertView
==
null)
{
convertView
=
View.inflate(context,
R.layout.item_shopping_car_group,
null);
groupViewHolder
=
new
GroupViewHolder(convertView);
convertView.setTag(groupViewHolder);
}
else
{
groupViewHolder
=
(GroupViewHolder)
convertView.getTag();
}
final
ShoppingCarDataBean.DatasBean
datasBean
=
data.get(groupPosition);
//店鋪ID
String
store_id
=
datasBean.getStore_id();
//店鋪名稱
String
store_name
=
datasBean.getStore_name();
if
(store_name
!=
null)
{
groupViewHolder.tvStoreName.setText(store_name);
}
else
{
groupViewHolder.tvStoreName.setText("");
}
//店鋪內(nèi)的商品都選中的時候，店鋪的也要選中
for
(int
i
=
0;
i
<
datasBean.getGoods().size();
i++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
datasBean.getGoods().get(i);
boolean
isSelect
=
goodsBean.getIsSelect();
if
(isSelect)
{
datasBean.setIsSelect_shop(true);
}
else
{
datasBean.setIsSelect_shop(false);
break;
}
}
//因為set之后要重新get，所以這一塊代碼要放到一起執(zhí)行
//店鋪是否在購物車中被選中
final
boolean
isSelect_shop
=
datasBean.getIsSelect_shop();
if
(isSelect_shop)
{
groupViewHolder.ivSelect.setImageResource(R.drawable.xuanze_xuanzhong);
}
else
{
groupViewHolder.ivSelect.setImageResource(R.drawable.unselect);
}
//店鋪選擇框的點擊事件
groupViewHolder.ll.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
datasBean.setIsSelect_shop(!isSelect_shop);
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
datasBean.getGoods();
for
(int
i
=
0;
i
<
goods.size();
i++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(i);
goodsBean.setIsSelect(!isSelect_shop);
}
notifyDataSetChanged();
}
});
//當所有的選擇框都是選中的時候，全選也要選中
w:
for
(int
i
=
0;
i
<
data.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
data.get(i).getGoods();
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
boolean
isSelect
=
goodsBean.getIsSelect();
if
(isSelect)
{
isSelectAll
=
true;
}
else
{
isSelectAll
=
false;
break
w;//根據(jù)標記，跳出嵌套循環(huán)
}
}
}
if
(isSelectAll)
{
ivSelectAll.setBackgroundResource(R.drawable.xuanze_xuanzhong);
}
else
{
ivSelectAll.setBackgroundResource(R.drawable.unselect);
}
//全選的點擊事件
llSelectAll.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
isSelectAll
=
!isSelectAll;
if
(isSelectAll)
{
for
(int
i
=
0;
i
<
data.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
data.get(i).getGoods();
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
goodsBean.setIsSelect(true);
}
}
}
else
{
for
(int
i
=
0;
i
<
data.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
data.get(i).getGoods();
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
goodsBean.setIsSelect(false);
}
}
}
notifyDataSetChanged();
}
});
//合計的計算
total_price
=
0.0;
tvTotalPrice.setText("¥0.00");
for
(int
i
=
0;
i
<
data.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
data.get(i).getGoods();
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
boolean
isSelect
=
goodsBean.getIsSelect();
if
(isSelect)
{
String
num
=
goodsBean.getGoods_num();
String
price
=
goodsBean.getGoods_price();
double
v
=
Double.parseDouble(num);
double
v1
=
Double.parseDouble(price);
total_price
=
total_price
+
v
*
v1;
//讓Double類型完整顯示，不用科學(xué)計數(shù)法顯示大寫字母E
DecimalFormat
decimalFormat
=
new
DecimalFormat("0.00");
tvTotalPrice.setText("¥"
+
decimalFormat.format(total_price));
}
}
}
//去結(jié)算的點擊事件
btnOrder.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
//創(chuàng)建臨時的List，用于存儲被選中的商品
List<ShoppingCarDataBean.DatasBean.GoodsBean>
temp
=
new
ArrayList<>();
for
(int
i
=
0;
i
<
data.size();
i++)
{
List<ShoppingCarDataBean.DatasBean.GoodsBean>
goods
=
data.get(i).getGoods();
for
(int
y
=
0;
y
<
goods.size();
y++)
{
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
goods.get(y);
boolean
isSelect
=
goodsBean.getIsSelect();
if
(isSelect)
{
temp.add(goodsBean);
}
}
}
if
(temp
!=
null
&&
temp.size()
>
0)
{//如果有被選中的
/**
*
實際開發(fā)中，如果有被選中的商品，
*
則跳轉(zhuǎn)到確認訂單頁面，完成后續(xù)訂單流程。
*/
ToastUtil.makeText(context,
"跳轉(zhuǎn)到確認訂單頁面，完成后續(xù)訂單流程");
}
else
{
ToastUtil.makeText(context,
"請選擇要購買的商品");
}
}
});
//刪除的點擊事件
btnDelete.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
/**
*
實際開發(fā)中，通過回調(diào)請求后臺接口實現(xiàn)刪除操作
*/
if
(mDeleteListener
!=
null)
{
mDeleteListener.onDelete();
}
}
});
return
convertView;
}
static
class
GroupViewHolder
{
@InjectView(R.id.iv_select)
ImageView
ivSelect;
@InjectView(R.id.tv_store_name)
TextView
tvStoreName;
@InjectView(R.id.ll)
LinearLayout
ll;
GroupViewHolder(View
view)
{
ButterKnife.inject(this,
view);
}
}
//
@Override
public
int
getChildrenCount(int
groupPosition)
{
if
(data.get(groupPosition).getGoods()
!=
null
&&
data.get(groupPosition).getGoods().size()
>
0)
{
return
data.get(groupPosition).getGoods().size();
}
else
{
return
0;
}
}
@Override
public
Object
getChild(int
groupPosition,
int
childPosition)
{
return
data.get(groupPosition).getGoods().get(childPosition);
}
@Override
public
long
getChildId(int
groupPosition,
int
childPosition)
{
return
childPosition;
}
@Override
public
View
getChildView(final
int
groupPosition,
final
int
childPosition,
boolean
isLastChild,
View
convertView,
ViewGroup
parent)
{
ChildViewHolder
childViewHolder;
if
(convertView
==
null)
{
convertView
=
View.inflate(context,
R.layout.item_shopping_car_child,
null);
childViewHolder
=
new
ChildViewHolder(convertView);
convertView.setTag(childViewHolder);
}
else
{
childViewHolder
=
(ChildViewHolder)
convertView.getTag();
}
final
ShoppingCarDataBean.DatasBean
datasBean
=
data.get(groupPosition);
//店鋪ID
String
store_id
=
datasBean.getStore_id();
//店鋪名稱
String
store_name
=
datasBean.getStore_name();
//店鋪是否在購物車中被選中
final
boolean
isSelect_shop
=
datasBean.getIsSelect_shop();
final
ShoppingCarDataBean.DatasBean.GoodsBean
goodsBean
=
datasBean.getGoods().get(childPosition);
//商品圖片
String
goods_image
=
goodsBean.getGoods_image();
//商品ID
final
String
goods_id
=
goodsBean.getGoods_id();
//商品名稱
String
goods_name
=
goodsBean.getGoods_name();
//商品價格
String
goods_price
=
goodsBean.getGoods_price();
//商品數(shù)量
String
goods_num
=
goodsBean.getGoods_num();
//商品是否被選中
final
boolean
isSelect
=
goodsBean.getIsSelect();
Glide.with(context)
.load(R.drawable.img)
.into(childViewHolder.ivPhoto);
if
(goods_name
!=
null)
{
childViewHolder.tvName.setText(goods_name);
}
else
{
childViewHolder.tvName.setText("");
}
if
(goods_price
!=
null)
{
childViewHolder.tvPriceValue.setText(goods_price);
}
else
{
childViewHolder.tvPriceValue.setText("");
}
if
(goods_num
!=
null)
{
childViewHolder.tvEditBuyNumber.setText(goods_num);
}
else
{
childViewHolder.tvEditBuyNumber.setText("");
}
//商品是否被選中
if
(isSelect)
{
childViewHolder.ivSelect.setImageResource(R.drawable.xuanze_xuanzhong);
}
else
{
childViewHolder.ivSelect.setImageResource(R.drawable.unselect);
}
//商品選擇框的點擊事件
childViewHolder.ivSelect.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
goodsBean.setIsSelect(!isSelect);
if
(!isSelect
==
false)
{
datasBean.setIsSelect_shop(false);
}
notifyDataSetChanged();
}
});
//加號的點擊事件
childViewHolder.ivEditAdd.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
//模擬加號操作
String
num
=
goodsBean.getGoods_num();
Integer
integer
=
Integer.valueOf(num);
integer++;
goodsBean.setGoods_num(integer
+
"");
notifyDataSetChanged();
/**
*
實際開發(fā)中，通過回調(diào)請求后臺接口實現(xiàn)數(shù)量的加減
*/
if
(mChangeCountListener
!=
null)
{
mChangeCountListener.onChangeCount(goods_id);
}
}
});
//減號的點擊事件
childViewHolder.ivEditSubtract.setOnClickListener(new
View.OnClickListener()
{
@Override
public
void
onClick(View
v)
{
//模擬減號操作
String
num
=
goodsBean.getGoods_num();
Integer
integer
=
Integer.valueOf(num);
if
(integer
>
1)
{
integer--;
goodsBean.setGoods_num(integer
+
"");
/**
*
實際開發(fā)中，通過回調(diào)請求后臺接口實現(xiàn)數(shù)量的加減
*/
if
(mChangeCountListener
!=
null)
{
mChangeCountListener.onChangeCount(goods_id);
}
}
else
{
ToastUtil.makeText(context,
"商品不能再減少了");
}
notifyDataSetChanged();
}
});
if
(childPosition
==
data.get(groupPosition).getGoods().size()
-
1)
{
childViewHolder.view.setVisibility(View.GONE);
childViewHolder.viewLast.setVisibility(View.VISIBLE);
}
else
{
childViewHolder.view.setVisibility(View.VISIBLE);
childViewHolder.viewLast.setVisibility(View.GONE);
}
return
conve
溫馨提示
- 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
- 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
- 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
- 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
- 5. 人人文庫網(wǎng)僅提供信息存儲空間，僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理，對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對任何下載內(nèi)容負責(zé)。
- 6. 下載文件中如有侵權(quán)或不適當內(nèi)容，請與我們聯(lián)系，我們立即糾正。
- 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
最新文檔
- 《音階歌（唱游、發(fā)現(xiàn)）》教學(xué)設(shè)計-2025-2026學(xué)年接力版（新教材）小學(xué)音樂一年級下冊
- 甲殼類養(yǎng)殖工安全實操測試考核試卷含答案
- 氣體凈化工崗前理論技能考核試卷含答案
- 碾泥工安全檢查測試考核試卷含答案
- 我國上市公司治理結(jié)構(gòu)的理性構(gòu)建之路
- 我國上市公司并購重組盈利補償機制：實踐、問題與優(yōu)化路徑
- 丁苯橡膠裝置操作工安全應(yīng)急知識考核試卷含答案
- 苗木培育工崗前安全理論考核試卷含答案
- 鎢絞絲加熱子制造工安全綜合考核試卷含答案
- 水工混凝土維修工達標能力考核試卷含答案
- 自動駕駛系統(tǒng)關(guān)鍵技術(shù)
- 淮安市2023-2024學(xué)年七年級上學(xué)期期末歷史試卷（含答案解析）
- 完整工資表模板(帶公式)
- 家長要求學(xué)校換老師的申請書
- 奇瑞汽車QC小組成果匯報材料
- 闌尾腫瘤-課件
- CTT2000LM用戶手冊(維護分冊)
- 正式員工派遣單
- 新員工入職申請表模板
- 中外新聞事業(yè)史課程教學(xué)大綱
- LY/T 1357-2008歧化松香
評論
0/150
提交評論