本文实例为大家分享了Android实现购物车功能的具体代码,供大家参考,具体内容如下
MainActivity布局:
& lt; & # 63; xml version=" 1.0 " encoding=" utf - 8 " & # 63;比;
& lt; LinearLayout xmlns: android=" http://schemas.android.com/apk/res/android "
android: layout_width=" match_parent "
android: layout_height=" match_parent "
面向android:=按怪薄北?
LinearLayout & lt;
android: id=癅 + id/top_bar”
android: layout_width=" match_parent "
android: layout_height=" 48 dp "
android:背景=" # E24146”
面向android:=按怪薄北?
& lt; TextView
android: id=癅 + id/标题”
android: layout_width=" match_parent "
android: layout_height=" wrap_content "
android:重力="中心"
android: minHeight=" 48 dp "
android:文本="购物车”
android:输入textColor=" # ffffff "
android: textSize=" 17 sp "/比;
& lt;/LinearLayout>
& lt;列表视图
android: id=癅 + id/视图”
android: layout_width=" match_parent "
android: layout_height=" 0 dp”
android: layout_weight=" 1 "
android: childIndicator=" @null "
android: groupIndicator=癅null”比;
& lt;/ListView>
LinearLayout & lt;
android: layout_width=" match_parent "
android: layout_height=" 50 dp”
面向android:="水平"比;
LinearLayout & lt;
android: layout_width=" 0 dp”
android: layout_height=" match_parent "
android: layout_weight=" 2.5 "
android:重力=" center_vertical "
面向android:="水平"比;
& lt;复选框
android: id=癅 + id/all_chekbox”
android: layout_width=" wrap_content "
android: layout_height=" wrap_content "
android: layout_gravity=" center_vertical "
android: layout_marginLeft=" 10 dp”
android: layout_marginRight=" 4 dp "
android:按钮=" @drawable/check_box_bg”
android:选中标记=" & # 63;android: attr/listChoiceIndicatorMultiple”
android:重力="中心"
android: minHeight=" 64 dp”
android: paddingLeft=" 10 dp”
android: textAppearance=" & # 63; android: attr/textAppearanceLarge”
android:可见性=翱杉?祝辞
& lt; TextView
android: layout_width=" wrap_content "
android: layout_height=" wrap_content "
android: layout_marginLeft=" 5 dp "
android:文本="合计:“
android: textSize=" 16 sp "
android: textStyle=按蟮ā?比;
& lt; TextView
android: id=癅 + id/tv_total_price”
android: layout_width=" wrap_content "
android: layout_height=" wrap_content "
android:文本=￥0.00
android:输入textColor=" @color/紫色
android: textSize=" 16 sp "
android: textStyle=按蟮ā?比;
& lt;/LinearLayout>
& lt; TextView
android: id=癅 + id/tv_delete”
android: layout_width=" 0 dp”
android: layout_height=" match_parent "
android: layout_weight=" 1 "
android:背景=" @color/橙”
android:点击=" true "
android:重力="中心"
android:文本="删除”
android:输入textColor=" # FAFAFA "/比;
& lt; TextView
android: id=癅 + id/tv_go_to_pay”
android: layout_width=" 0 dp”
android: layout_height=" match_parent "
android: layout_weight=" 1 "
android:背景=" # E24146”
android:点击=" true "
android:重力="中心"
android:文本="付款(0)”
android:输入textColor=" # FAFAFA "/比;
& lt;/LinearLayout>
& lt;/LinearLayout>
之前
进口android.os.Bundle;
进口android.support.v7.app.AppCompatActivity;
进口android.view.View;
进口android.widget.CheckBox;
进口android.widget.ListView;
进口android.widget.TextView;
进口android.widget.Toast;
进口java.util.ArrayList;
进口java.util.HashMap;
进口java.util.Iterator;
进口并不知道;
进口java.util.Map;
进口java.util.Random;
公共类MainActivity AppCompatActivity实现CartAdapter延伸。RefreshPriceInterface View.OnClickListener {
私人列表视图列表视图;
私人复选框cb_check_all;
私人TextView tv_total_price;
私人TextView tv_delete;
私人TextView tv_go_to_pay;
私人CartAdapter适配器;
私人双totalPrice=0.00;
私人int totalCount=0;
私人List
