RecycleView下的二次贝塞尔购物车轨迹曲线
来源：互联网 发布：淘宝人参怎么这么便宜 编辑：程序博客网 时间：2024/06/11 20:02
效果视频地址：
http://player.video.qiyi.com/278cdb58b5bba9d32d161efac3b422f1/0/23/w_19rtsbpghx.swf-albumId=8487824809-tvId=8487824809-isPurchase=0-cnId=30实现思路：
类似饿了么点餐页面，左右两个RecycleView相关联，点击左侧类别，右侧自动置顶，利用二次贝塞尔曲线公式绘制动画轨迹
左侧菜单布局：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:gravity="center_horizontal" android:id="@+id/left_menu_item" android:background="@drawable/selector_item_select" android:clickable="true" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/left_menu_textview" android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_marginTop="@dimen/item_dish_top_margin" android:layout_marginBottom="@dimen/item_dish_top_margin" android:text="@string/menu_name" android:textSize="@dimen/item_menu_word_size" android:textColor="@color/black"/></LinearLayout>右侧菜单布局:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:id="@+id/right_menu_item" android:layout_width="match_parent" android:background="@color/light_gray" android:layout_height="@dimen/item_dish_menu_hight"> <!--右侧RecycleView的item选中黑色显示条--> <LinearLayout android:layout_width="2dp" android:layout_height="match_parent" android:layout_marginRight="@dimen/item_menu_title_margin" android:background="@color/black"> </LinearLayout> <!--右侧RecycleView的item选中文本--> <TextView android:id="@+id/right_menu_tv" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center" android:text="@string/menu_name" android:textSize="@dimen/item_menu_word_size" android:textColor="@color/black" android:background="@color/light_gray"/></LinearLayout>已选商品上拉布局：
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/right_dish_item" android:layout_width="match_parent" android:layout_height="@dimen/item_dish_hight" android:orientation="vertical"> <!--菜名--> <LinearLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_marginTop="@dimen/item_dish_top_margin" android:layout_weight="1"> <TextView android:id="@+id/right_dish_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/item_dish_horizontal_margin" android:text="@string/dish_name" android:textColor="@color/black" android:textSize="@dimen/item_dish_word_size" /> </LinearLayout> <!--单价和数量--> <FrameLayout android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1"> <LinearLayout android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="left" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/item_dish_horizontal_margin" android:text="￥" android:textColor="@color/red" android:textSize="@dimen/item_dish_money_size" /> <TextView android:id="@+id/right_dish_price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/item_dish_small_horizontal_margin" android:text="10.0" android:textColor="@color/red" android:textSize="@dimen/item_dish_word_size" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="match_parent" android:layout_gravity="right|center_vertical" android:layout_marginBottom="1dp" android:layout_marginRight="@dimen/activity_horizontal_margin" android:gravity="end" android:orientation="horizontal"> <ImageView android:id="@+id/right_dish_remove" android:layout_width="@dimen/item_dish_circle_size" android:layout_height="@dimen/item_dish_circle_size" android:clickable="true" android:src="@drawable/ic_remove_circle_outline_blue_700_36dp" /> <TextView android:id="@+id/right_dish_account" android:layout_width="@dimen/item_dish_account_width" android:layout_height="wrap_content" android:gravity="center_horizontal" android:text="1" android:textColor="@color/black" android:textSize="@dimen/item_dish_small_word_size" /> <ImageView android:id="@+id/right_dish_add" android:layout_width="@dimen/item_dish_circle_size" android:layout_height="@dimen/item_dish_circle_size" android:clickable="true" android:src="@drawable/ic_add_circle_blue_700_36dp" /> </LinearLayout> </FrameLayout></LinearLayout>已选商品架构布局
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:id="@+id/linearlayout" android:layout_above="@+id/shopping_cart_bottom" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:background="@color/deep_gray"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@color/gray"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/shopping_cart_right_margin" android:layout_marginTop="@dimen/shopping_cart_right_margin" android:layout_marginBottom="@dimen/shopping_cart_right_margin" android:layout_alignParentLeft="true" android:text="@string/shopcart" android:textColor="@color/black" android:textSize="@dimen/shopping_cart_small_size"/> <LinearLayout android:id="@+id/clear_layout" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_alignParentRight="true" android:clickable="true" android:layout_marginRight="@dimen/shopping_cart_right_margin" android:layout_marginTop="@dimen/shopping_cart_right_margin" android:layout_marginBottom="@dimen/shopping_cart_right_margin"> <ImageView android:layout_width="18dp" android:layout_height="18dp" android:src="@drawable/ic_delete_grey_500_24dp" android:scaleType="centerCrop" android:layout_marginRight="@dimen/item_dish_small_horizontal_margin"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/clear" android:textColor="@color/deep_gray_2" android:textSize="@dimen/shopping_cart_small_size"/> </LinearLayout> </RelativeLayout> <android.support.v7.widget.RecyclerView android:id="@+id/recycleview" android:layout_width="match_parent" android:layout_height="@dimen/shopping_cart_bottom_recycle_height" android:background="@color/white"> </android.support.v7.widget.RecyclerView> </LinearLayout> <LinearLayout android:id="@+id/shopping_cart_bottom" android:layout_width="match_parent" android:layout_height="@dimen/shopping_cart_height" android:background="@color/light_black" android:orientation="horizontal" android:clickable="true" android:layout_alignParentBottom="true"> <TextView android:id="@+id/shopping_cart_total_tv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:text="120" android:textColor="@color/white" android:textAlignment="center" android:textSize="@dimen/shopping_cart_total_price_word_size" android:textStyle="bold" android:visibility="gone" android:layout_marginLeft="@dimen/shopping_cart_total_price_left_magrin"/> </LinearLayout> <FrameLayout android:id="@+id/shopping_cart_layout" android:layout_width="@dimen/shopping_cart_circle_size" android:layout_height="@dimen/shopping_cart_circle_size" android:layout_marginLeft="@dimen/activity_horizontal_margin" android:layout_above="@+id/lineview" android:clickable="true" android:background="@drawable/circle"> <ImageView android:id="@+id/shopping_cart" android:layout_width="@dimen/shopping_cart_image_height" android:layout_height="@dimen/shopping_cart_image_height" android:layout_gravity="center" android:src="@drawable/ic_shopping_cart_white_24dp"/> </FrameLayout> <TextView android:id="@+id/lineview" android:layout_width="match_parent" android:layout_height="@dimen/shopping_cart_bottom_margin" android:visibility="invisible" android:layout_alignParentBottom="true"/> <TextView android:id="@+id/shopping_cart_total_num" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/small_red_circle" android:text="1" android:textColor="@color/white" android:textSize="10sp" android:textStyle="bold" android:layout_above="@id/shopping_cart_bottom" android:layout_alignRight="@id/shopping_cart_layout"/></RelativeLayout>左侧RecycleView的adapter适配器
package com.example.ytf.elmapplication.adapter;import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.LinearLayout;import android.widget.TextView;import com.example.ytf.elmapplication.R;import com.example.ytf.elmapplication.model.DishMenu;import java.util.ArrayList;import java.util.List;/** * Created by YTF on 2017/7/25. */public class LeftMenuAdapter extends RecyclerView.Adapter { private Context mContext; private ArrayList<DishMenu> mMenuList; private int mSelectedNum; private List<onItemSelectedListener> mSelectedListenerList; public interface onItemSelectedListener{ public void onLeftItemSelected(int postion,DishMenu menu); } public void addItemSelectedListener(onItemSelectedListener listener){ if(mSelectedListenerList!=null) mSelectedListenerList.add(listener); } public void removeItemSelectedListener(onItemSelectedListener listener){ if(mSelectedListenerList!=null && !mSelectedListenerList.isEmpty()) mSelectedListenerList.remove(listener); } public LeftMenuAdapter(Context mContext, ArrayList<DishMenu> mMenuList){ this.mContext = mContext; this.mMenuList = mMenuList; this.mSelectedNum = -1; this.mSelectedListenerList = new ArrayList<>(); if(mMenuList.size()>0) mSelectedNum = 0; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.left_menu_item, parent, false); LeftMenuViewHolder viewHolder = new LeftMenuViewHolder(view); return viewHolder; } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { DishMenu dishMenu = mMenuList.get(position); LeftMenuViewHolder viewHolder = (LeftMenuViewHolder)holder; viewHolder.menuName.setText(dishMenu.getMenuName()); if(mSelectedNum==position){ viewHolder.menuLayout.setSelected(true); }else{ viewHolder.menuLayout.setSelected(false); } } @Override public int getItemCount() { return mMenuList.size(); } public void setSelectedNum(int selectedNum) { if(selectedNum<getItemCount() && selectedNum>=0 ) { this.mSelectedNum = selectedNum; notifyDataSetChanged(); } } public int getSelectedNum() { return mSelectedNum; } private class LeftMenuViewHolder extends RecyclerView.ViewHolder{ TextView menuName; LinearLayout menuLayout; public LeftMenuViewHolder(final View itemView) { super(itemView); menuName = (TextView)itemView.findViewById(R.id.left_menu_textview); menuLayout = (LinearLayout)itemView.findViewById(R.id.left_menu_item); menuLayout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { int clickPosition = getAdapterPosition();// setSelectedNum(clickPosition); notifyItemSelected(clickPosition); } }); } } private void notifyItemSelected(int position) { if(mSelectedListenerList!=null && !mSelectedListenerList.isEmpty()){ for(onItemSelectedListener listener:mSelectedListenerList){ listener.onLeftItemSelected(position,mMenuList.get(position)); } } }}右侧RecycleView的适配器adapter
package com.example.ytf.elmapplication.adapter;import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import com.example.ytf.elmapplication.R;import com.example.ytf.elmapplication.imp.ShopCartImp;import com.example.ytf.elmapplication.model.Dish;import com.example.ytf.elmapplication.model.DishMenu;import com.example.ytf.elmapplication.model.ShopCart;import java.util.ArrayList;/** * Created by YTF on 2017/7/25. */public class RightDishAdapter extends RecyclerView.Adapter { private final int MENU_TYPE = 0; private final int DISH_TYPE = 1; private final int HEAD_TYPE = 2; private Context mContext; private ArrayList<DishMenu> mMenuList; private int mItemCount; private ShopCart shopCart; private ShopCartImp shopCartImp; public RightDishAdapter(Context mContext, ArrayList<DishMenu> mMenuList, ShopCart shopCart){ this.mContext = mContext; this.mMenuList = mMenuList; this.mItemCount = mMenuList.size(); this.shopCart = shopCart; for(DishMenu menu:mMenuList){ mItemCount+=menu.getDishList().size(); } } @Override public int getItemViewType(int position) { int sum=0; for(DishMenu menu:mMenuList){ if(position==sum){ return MENU_TYPE; } sum+=menu.getDishList().size()+1; } return DISH_TYPE; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { if(viewType==MENU_TYPE){ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.right_menu_item, parent, false); MenuViewHolder viewHolder = new MenuViewHolder(view); return viewHolder; }else{ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.right_dish_item, parent, false); DishViewHolder viewHolder = new DishViewHolder(view); return viewHolder; } } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) { if(getItemViewType(position)==MENU_TYPE){ MenuViewHolder menuholder = (MenuViewHolder)holder; if(menuholder!=null) { menuholder.right_menu_title.setText(getMenuByPosition(position).getMenuName()); menuholder.right_menu_layout.setContentDescription(position+""); } }else { final DishViewHolder dishholder = (DishViewHolder) holder; if (dishholder != null) { final Dish dish = getDishByPosition(position); dishholder.right_dish_name_tv.setText(dish.getDishName()); dishholder.right_dish_price_tv.setText(dish.getDishPrice()+""); dishholder.right_dish_layout.setContentDescription(position+""); int count = 0; if(shopCart.getShoppingSingleMap().containsKey(dish)){ count = shopCart.getShoppingSingleMap().get(dish); } if(count<=0){ dishholder.right_dish_remove_iv.setVisibility(View.GONE); dishholder.right_dish_account_tv.setVisibility(View.GONE); }else { dishholder.right_dish_remove_iv.setVisibility(View.VISIBLE); dishholder.right_dish_account_tv.setVisibility(View.VISIBLE); dishholder.right_dish_account_tv.setText(count+""); } dishholder.right_dish_add_iv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(shopCart.addShoppingSingle(dish)) { notifyItemChanged(position); if(shopCartImp!=null) shopCartImp.add(view,position); } } }); dishholder.right_dish_remove_iv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(shopCart.subShoppingSingle(dish)){ notifyItemChanged(position); if(shopCartImp!=null) shopCartImp.remove(view,position); } } }); } } } public DishMenu getMenuByPosition(int position){ int sum =0; for(DishMenu menu:mMenuList){ if(position==sum){ return menu; } sum+=menu.getDishList().size()+1; } return null; } public Dish getDishByPosition(int position){ for(DishMenu menu:mMenuList){ if(position>0 && position<=menu.getDishList().size()){ return menu.getDishList().get(position-1); } else{ position-=menu.getDishList().size()+1; } } return null; } public DishMenu getMenuOfMenuByPosition(int position){ for(DishMenu menu:mMenuList){ if(position==0)return menu; if(position>0 && position<=menu.getDishList().size()){ return menu; } else{ position-=menu.getDishList().size()+1; } } return null; } @Override public int getItemCount() { return mItemCount; } public ShopCartImp getShopCartImp() { return shopCartImp; } public void setShopCartImp(ShopCartImp shopCartImp) { this.shopCartImp = shopCartImp; } private class MenuViewHolder extends RecyclerView.ViewHolder{ private LinearLayout right_menu_layout; private TextView right_menu_title; public MenuViewHolder(View itemView) { super(itemView); right_menu_layout = itemView.findViewById(R.id.right_menu_item); right_menu_title = (TextView)itemView.findViewById(R.id.right_menu_tv); } } private class DishViewHolder extends RecyclerView.ViewHolder{ private TextView right_dish_name_tv; private TextView right_dish_price_tv; private LinearLayout right_dish_layout; private ImageView right_dish_remove_iv; private ImageView right_dish_add_iv; private TextView right_dish_account_tv; public DishViewHolder(View itemView) { super(itemView); right_dish_name_tv = (TextView)itemView.findViewById(R.id.right_dish_name); right_dish_price_tv = (TextView)itemView.findViewById(R.id.right_dish_price); right_dish_layout = (LinearLayout)itemView.findViewById(R.id.right_dish_item); right_dish_remove_iv = (ImageView)itemView.findViewById(R.id.right_dish_remove); right_dish_add_iv = (ImageView)itemView.findViewById(R.id.right_dish_add); right_dish_account_tv = (TextView) itemView.findViewById(R.id.right_dish_account); } }}已选商品的上拉适配器
package com.example.ytf.elmapplication.adapter;import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;import com.example.ytf.elmapplication.R;import com.example.ytf.elmapplication.imp.ShopCartImp;import com.example.ytf.elmapplication.model.Dish;import com.example.ytf.elmapplication.model.DishMenu;import com.example.ytf.elmapplication.model.ShopCart;import java.util.ArrayList;/** * Created by YTF on 2017/7/25. */public class RightDishAdapter extends RecyclerView.Adapter { private final int MENU_TYPE = 0; private final int DISH_TYPE = 1; private final int HEAD_TYPE = 2; private Context mContext; private ArrayList<DishMenu> mMenuList; private int mItemCount; private ShopCart shopCart; private ShopCartImp shopCartImp; public RightDishAdapter(Context mContext, ArrayList<DishMenu> mMenuList, ShopCart shopCart){ this.mContext = mContext; this.mMenuList = mMenuList; this.mItemCount = mMenuList.size(); this.shopCart = shopCart; for(DishMenu menu:mMenuList){ mItemCount+=menu.getDishList().size(); } } @Override public int getItemViewType(int position) { int sum=0; for(DishMenu menu:mMenuList){ if(position==sum){ return MENU_TYPE; } sum+=menu.getDishList().size()+1; } return DISH_TYPE; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { if(viewType==MENU_TYPE){ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.right_menu_item, parent, false); MenuViewHolder viewHolder = new MenuViewHolder(view); return viewHolder; }else{ View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.right_dish_item, parent, false); DishViewHolder viewHolder = new DishViewHolder(view); return viewHolder; } } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) { if(getItemViewType(position)==MENU_TYPE){ MenuViewHolder menuholder = (MenuViewHolder)holder; if(menuholder!=null) { menuholder.right_menu_title.setText(getMenuByPosition(position).getMenuName()); menuholder.right_menu_layout.setContentDescription(position+""); } }else { final DishViewHolder dishholder = (DishViewHolder) holder; if (dishholder != null) { final Dish dish = getDishByPosition(position); dishholder.right_dish_name_tv.setText(dish.getDishName()); dishholder.right_dish_price_tv.setText(dish.getDishPrice()+""); dishholder.right_dish_layout.setContentDescription(position+""); int count = 0; if(shopCart.getShoppingSingleMap().containsKey(dish)){ count = shopCart.getShoppingSingleMap().get(dish); } if(count<=0){ dishholder.right_dish_remove_iv.setVisibility(View.GONE); dishholder.right_dish_account_tv.setVisibility(View.GONE); }else { dishholder.right_dish_remove_iv.setVisibility(View.VISIBLE); dishholder.right_dish_account_tv.setVisibility(View.VISIBLE); dishholder.right_dish_account_tv.setText(count+""); } dishholder.right_dish_add_iv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(shopCart.addShoppingSingle(dish)) { notifyItemChanged(position); if(shopCartImp!=null) shopCartImp.add(view,position); } } }); dishholder.right_dish_remove_iv.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if(shopCart.subShoppingSingle(dish)){ notifyItemChanged(position); if(shopCartImp!=null) shopCartImp.remove(view,position); } } }); } } } public DishMenu getMenuByPosition(int position){ int sum =0; for(DishMenu menu:mMenuList){ if(position==sum){ return menu; } sum+=menu.getDishList().size()+1; } return null; } public Dish getDishByPosition(int position){ for(DishMenu menu:mMenuList){ if(position>0 && position<=menu.getDishList().size()){ return menu.getDishList().get(position-1); } else{ position-=menu.getDishList().size()+1; } } return null; } public DishMenu getMenuOfMenuByPosition(int position){ for(DishMenu menu:mMenuList){ if(position==0)return menu; if(position>0 && position<=menu.getDishList().size()){ return menu; } else{ position-=menu.getDishList().size()+1; } } return null; } @Override public int getItemCount() { return mItemCount; } public ShopCartImp getShopCartImp() { return shopCartImp; } public void setShopCartImp(ShopCartImp shopCartImp) { this.shopCartImp = shopCartImp; } private class MenuViewHolder extends RecyclerView.ViewHolder{ private LinearLayout right_menu_layout; private TextView right_menu_title; public MenuViewHolder(View itemView) { super(itemView); right_menu_layout = itemView.findViewById(R.id.right_menu_item); right_menu_title = (TextView)itemView.findViewById(R.id.right_menu_tv); } } private class DishViewHolder extends RecyclerView.ViewHolder{ private TextView right_dish_name_tv; private TextView right_dish_price_tv; private LinearLayout right_dish_layout; private ImageView right_dish_remove_iv; private ImageView right_dish_add_iv; private TextView right_dish_account_tv; public DishViewHolder(View itemView) { super(itemView); right_dish_name_tv = (TextView)itemView.findViewById(R.id.right_dish_name); right_dish_price_tv = (TextView)itemView.findViewById(R.id.right_dish_price); right_dish_layout = (LinearLayout)itemView.findViewById(R.id.right_dish_item); right_dish_remove_iv = (ImageView)itemView.findViewById(R.id.right_dish_remove); right_dish_add_iv = (ImageView)itemView.findViewById(R.id.right_dish_add); right_dish_account_tv = (TextView) itemView.findViewById(R.id.right_dish_account); } }}商品接口
package com.example.ytf.elmapplication.imp;import android.view.View;/** * Created by YTF on 2017/7/25. */public interface ShopCartImp { void add(View view, int postion); void remove(View view, int postion);}菜单属性类
package com.example.ytf.elmapplication.model;/** * Created by YTF on 2017/7/25. * 菜单属性类 */public class Dish { private String dishName; private double dishPrice; private int dishAmount; private int dishRemain; public Dish(String dishName, double dishPrice, int dishAmount) { this.dishName = dishName; this.dishPrice = dishPrice; this.dishAmount = dishAmount; this.dishRemain = dishAmount; } public String getDishName() { return dishName; } public void setDishName(String dishName) { this.dishName = dishName; } public double getDishPrice() { return dishPrice; } public void setDishPrice(double dishPrice) { this.dishPrice = dishPrice; } public int getDishAmount() { return dishAmount; } public void setDishAmount(int dishAmount) { this.dishAmount = dishAmount; } public int getDishRemain() { return dishRemain; } public void setDishRemain(int dishRemain) { this.dishRemain = dishRemain; } @Override public boolean equals(Object obj) { if (this == obj) return true; return obj instanceof Dish && this.dishName.equals(((Dish)obj).dishName) && this.dishPrice == ((Dish)obj).dishPrice && this.dishAmount == ((Dish)obj).dishAmount && this.dishRemain == ((Dish)obj).dishRemain; } public int hashCode(){ int code = this.dishName.hashCode()+(int)this.dishPrice; return code; }}菜单名称实体类
package com.example.ytf.elmapplication.model;import java.util.ArrayList;/** * Created by YTF on 2017/7/25. */public class DishMenu { private String menuName; private ArrayList<Dish> dishList; public DishMenu(){ } public DishMenu(String menuName, ArrayList<Dish> dishList) { this.menuName = menuName; this.dishList = dishList; } public String getMenuName() { return menuName; } public void setMenuName(String menuName) { this.menuName = menuName; } public ArrayList<Dish> getDishList() { return dishList; } public void setDishList(ArrayList<Dish> dishList) { this.dishList = dishList; }}已选商品的数量价格实体类
package com.example.ytf.elmapplication.model;import android.util.Log;import java.util.HashMap;import java.util.Map;/** * Created by YTF on 2017/7/25. */public class ShopCart { private int shoppingAccount;//商品总数 private double shoppingTotalPrice;//商品总价钱 private Map<Dish, Integer> shoppingSingle;//单个物品的总价价钱 public ShopCart() { this.shoppingAccount = 0; this.shoppingTotalPrice = 0; this.shoppingSingle = new HashMap<>(); } public int getShoppingAccount() { return shoppingAccount; } public double getShoppingTotalPrice() { return shoppingTotalPrice; } public Map<Dish, Integer> getShoppingSingleMap() { return shoppingSingle; } // 增加商品数量 public boolean addShoppingSingle(Dish dish) { int remain = dish.getDishRemain(); if (remain <= 0) return false; dish.setDishRemain(--remain); int num = 0; if (shoppingSingle.containsKey(dish)) { num = shoppingSingle.get(dish); } num += 1; shoppingSingle.put(dish, num); Log.e("TAG", "addShoppingSingle: " + shoppingSingle.get(dish)); shoppingTotalPrice += dish.getDishPrice(); shoppingAccount++; return true; } //减去商品数量 public boolean subShoppingSingle(Dish dish) { int num = 0; if (shoppingSingle.containsKey(dish)) { num = shoppingSingle.get(dish); } if (num <= 0) return false; num--; int remain = dish.getDishRemain(); dish.setDishRemain(++remain); shoppingSingle.put(dish, num); if (num == 0) shoppingSingle.remove(dish); shoppingTotalPrice -= dish.getDishPrice(); shoppingAccount--; return true; } // 获取选中商品数量 public int getDishAccount() { return shoppingSingle.size(); } //清空选中商品数量 public void clear() { this.shoppingAccount = 0; this.shoppingTotalPrice = 0; this.shoppingSingle.clear(); }}自定义view1
package com.example.ytf.elmapplication.wiget;import android.annotation.SuppressLint;import android.annotation.TargetApi;import android.content.Context;import android.graphics.PointF;import android.os.Build;import android.support.annotation.Nullable;import android.util.AttributeSet;import android.widget.ImageView;/** * Created by YTF on 2017/7/25. * 自定义Imageview控件 */@SuppressLint("AppCompatCustomView")public class FakeAddImageView extends ImageView { private PointF mPointF; public FakeAddImageView(Context context) { super(context); } public FakeAddImageView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); } public FakeAddImageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } @TargetApi(Build.VERSION_CODES.LOLLIPOP) public FakeAddImageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { super(context, attrs, defStyleAttr, defStyleRes); } public void setMPointF(PointF pointF) { setX(pointF.x); setY(pointF.y); } public PointF getmPointF() { return mPointF; } public void setmPointF(PointF mPointF) { setX(mPointF.x); setY(mPointF.y); }}自定义view2二次贝塞尔曲线绘制轨迹
package com.example.ytf.elmapplication.wiget;/** * Created by YTF on 2017/7/25. */import android.animation.TypeEvaluator;import android.graphics.PointF;/** * 自定义估值器 */public class PointFTypeEvaluator implements TypeEvaluator<PointF> { /** * 每个估值器对应一个属性动画，每个属性动画仅对应唯一一个控制点 */ PointF control; /** * 估值器返回值 */ PointF mPointF = new PointF(); public PointFTypeEvaluator(PointF control) { this.control = control; } @Override public PointF evaluate(float fraction, PointF startValue, PointF endValue) { return getBezierPoint(startValue, endValue, control, fraction); } /** * 二次贝塞尔曲线公式 * * @param start 开始的数据点 * @param end 结束的数据点 * @param control 控制点 * @param t float 0-1 * @return 不同t对应的PointF */ private PointF getBezierPoint(PointF start, PointF end, PointF control, float t) { mPointF.x = (1 - t) * (1 - t) * start.x + 2 * t * (1 - t) * control.x + t * t * end.x; mPointF.y = (1 - t) * (1 - t) * start.y + 2 * t * (1 - t) * control.y + t * t * end.y; return mPointF; }}自定义view3自定义分割线
package com.example.ytf.elmapplication.wiget;import android.content.Context;import android.content.res.TypedArray;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.Rect;import android.graphics.drawable.Drawable;import android.support.v4.content.ContextCompat;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;/** * Created by YTF on 2017/7/25. * 自定义RecycleView的分割线 */public class RecycleViewDivider extends RecyclerView.ItemDecoration { private Paint mPaint; private Drawable mDivider; private int mDividerHeight = 2;//分割线高度，默认为1px private int mOrientation;//列表的方向：LinearLayoutManager.VERTICAL或LinearLayoutManager.HORIZONTAL private static final int[] ATTRS = new int[]{android.R.attr.listDivider}; /** * 默认分割线：高度为2px，颜色为灰色 * * @param context * @param orientation 列表方向 */ public RecycleViewDivider(Context context, int orientation) { if (orientation != LinearLayoutManager.VERTICAL && orientation != LinearLayoutManager.HORIZONTAL) { throw new IllegalArgumentException("请输入正确的参数！"); } mOrientation = orientation; final TypedArray a = context.obtainStyledAttributes(ATTRS); mDivider = a.getDrawable(0); a.recycle(); } /** * 自定义分割线 * * @param context * @param orientation 列表方向 * @param drawableId 分割线图片 */ public RecycleViewDivider(Context context, int orientation, int drawableId) { this(context, orientation); mDivider = ContextCompat.getDrawable(context, drawableId); mDividerHeight = mDivider.getIntrinsicHeight(); } /** * 自定义分割线 * * @param context * @param orientation 列表方向 * @param dividerHeight 分割线高度 * @param dividerColor 分割线颜色 */ public RecycleViewDivider(Context context, int orientation, int dividerHeight, int dividerColor) { this(context, orientation); mDividerHeight = dividerHeight; mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); mPaint.setColor(dividerColor); mPaint.setStyle(Paint.Style.FILL); } //获取分割线尺寸 @Override public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { super.getItemOffsets(outRect, view, parent, state); outRect.set(0, 0, 0, mDividerHeight); } //绘制分割线 @Override public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) { super.onDraw(c, parent, state); if (mOrientation == LinearLayoutManager.VERTICAL) { drawVertical(c, parent); } else { drawHorizontal(c, parent); } } //绘制横向 item 分割线 private void drawHorizontal(Canvas canvas, RecyclerView parent) { final int left = parent.getPaddingLeft(); final int right = parent.getMeasuredWidth() - parent.getPaddingRight(); final int childSize = parent.getChildCount(); for (int i = 0; i < childSize; i++) { final View child = parent.getChildAt(i); RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams(); final int top = child.getBottom() + layoutParams.bottomMargin; final int bottom = top + mDividerHeight; if (mDivider != null) { mDivider.setBounds(left, top, right, bottom); mDivider.draw(canvas); } if (mPaint != null) { canvas.drawRect(left, top, right, bottom, mPaint); } } } //绘制纵向 item 分割线 private void drawVertical(Canvas canvas, RecyclerView parent) { final int top = parent.getPaddingTop(); final int bottom = parent.getMeasuredHeight() - parent.getPaddingBottom(); final int childSize = parent.getChildCount(); for (int i = 0; i < childSize; i++) { final View child = parent.getChildAt(i); RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams(); final int left = child.getRight() + layoutParams.rightMargin; final int right = left + mDividerHeight; if (mDivider != null) { mDivider.setBounds(left, top, right, bottom); mDivider.draw(canvas); } if (mPaint != null) { canvas.drawRect(left, top, right, bottom, mPaint); } } }}自定义view4
package com.example.ytf.elmapplication.wiget;import android.animation.Animator;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.widget.FrameLayout;import android.widget.LinearLayout;import android.widget.TextView;import com.example.ytf.elmapplication.R;import com.example.ytf.elmapplication.adapter.PopupDishAdapter;import com.example.ytf.elmapplication.imp.ShopCartImp;import com.example.ytf.elmapplication.model.ShopCart;/** * Created by YTF on 2017/7/25. */public class ShopCartDialog extends Dialog implements View.OnClickListener,ShopCartImp { private LinearLayout linearLayout,bottomLayout,clearLayout; private FrameLayout shopingcartLayout; private ShopCart shopCart; private TextView totalPriceTextView; private TextView totalPriceNumTextView; private RecyclerView recyclerView; private PopupDishAdapter dishAdapter; private ShopCartDialogImp shopCartDialogImp; public ShopCartDialog(Context context, ShopCart shopCart, int themeResId) { super(context,themeResId); this.shopCart = shopCart; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cart_popupview); linearLayout = (LinearLayout) findViewById(R.id.linearlayout); clearLayout = (LinearLayout)findViewById(R.id.clear_layout); shopingcartLayout = (FrameLayout)findViewById(R.id.shopping_cart_layout); bottomLayout = (LinearLayout)findViewById(R.id.shopping_cart_bottom); totalPriceTextView = (TextView)findViewById(R.id.shopping_cart_total_tv); totalPriceNumTextView = (TextView)findViewById(R.id.shopping_cart_total_num); recyclerView = (RecyclerView)findViewById(R.id.recycleview); shopingcartLayout.setOnClickListener(this); bottomLayout.setOnClickListener(this); clearLayout.setOnClickListener(this); recyclerView.setLayoutManager(new LinearLayoutManager(getContext())); dishAdapter = new PopupDishAdapter(getContext(),shopCart); recyclerView.setAdapter(dishAdapter); dishAdapter.setShopCartImp(this); showTotalPrice(); } @Override public void show() { super.show(); animationShow(1000); } @Override public void dismiss() { animationHide(1000); } private void showTotalPrice(){ if(shopCart!=null && shopCart.getShoppingTotalPrice()>0){ totalPriceTextView.setVisibility(View.VISIBLE); totalPriceTextView.setText("￥ "+shopCart.getShoppingTotalPrice()); totalPriceNumTextView.setVisibility(View.VISIBLE); totalPriceNumTextView.setText(""+shopCart.getShoppingAccount()); }else { totalPriceTextView.setVisibility(View.GONE); totalPriceNumTextView.setVisibility(View.GONE); } } private void animationShow(int mDuration) { AnimatorSet animatorSet = new AnimatorSet(); animatorSet.playTogether( ObjectAnimator.ofFloat(linearLayout, "translationY",1000, 0).setDuration(mDuration) ); animatorSet.start(); } private void animationHide(int mDuration) { AnimatorSet animatorSet = new AnimatorSet(); animatorSet.playTogether( ObjectAnimator.ofFloat(linearLayout, "translationY",0,1000).setDuration(mDuration) ); animatorSet.start(); if(shopCartDialogImp!=null){ shopCartDialogImp.dialogDismiss(); } animatorSet.addListener(new Animator.AnimatorListener() { @Override public void onAnimationStart(Animator animator) { } @Override public void onAnimationEnd(Animator animator) { ShopCartDialog.super.dismiss(); } @Override public void onAnimationCancel(Animator animator) { } @Override public void onAnimationRepeat(Animator animator) { } }); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.shopping_cart_bottom: case R.id.shopping_cart_layout: this.dismiss(); break; case R.id.clear_layout: clear(); break; } } @Override public void add(View view, int postion) { showTotalPrice(); } @Override public void remove(View view, int postion) { showTotalPrice(); if(shopCart.getShoppingAccount()==0){ this.dismiss(); } } public ShopCartDialogImp getShopCartDialogImp() { return shopCartDialogImp; } public void setShopCartDialogImp(ShopCartDialogImp shopCartDialogImp) { this.shopCartDialogImp = shopCartDialogImp; } public interface ShopCartDialogImp{ public void dialogDismiss(); } public void clear(){ shopCart.clear(); showTotalPrice(); if(shopCart.getShoppingAccount()==0){ this.dismiss(); } }}MainAcvitity填充数据，实现逻辑
package com.example.ytf.elmapplication;import android.animation.Animator;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.graphics.PointF;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.util.Log;import android.view.Gravity;import android.view.View;import android.view.Window;import android.view.WindowManager;import android.view.animation.AccelerateInterpolator;import android.widget.FrameLayout;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.RelativeLayout;import android.widget.TextView;import com.example.ytf.elmapplication.adapter.LeftMenuAdapter;import com.example.ytf.elmapplication.adapter.RightDishAdapter;import com.example.ytf.elmapplication.imp.ShopCartImp;import com.example.ytf.elmapplication.model.Dish;import com.example.ytf.elmapplication.model.DishMenu;import com.example.ytf.elmapplication.model.ShopCart;import com.example.ytf.elmapplication.wiget.FakeAddImageView;import com.example.ytf.elmapplication.wiget.PointFTypeEvaluator;import com.example.ytf.elmapplication.wiget.ShopCartDialog;import java.util.ArrayList;public class MainActivity extends AppCompatActivity implements LeftMenuAdapter.onItemSelectedListener,ShopCartImp,ShopCartDialog.ShopCartDialogImp { private final static String TAG = "MainActivity"; private RecyclerView leftMenu;//左侧菜单栏 private RecyclerView rightMenu;//右侧菜单栏 private TextView headerView; private LinearLayout headerLayout;//右侧菜单栏最上面的菜单 private LinearLayout bottomLayout; private DishMenu headMenu; private LeftMenuAdapter leftAdapter; private RightDishAdapter rightAdapter; private ArrayList<DishMenu> dishMenuList;//数据源 private boolean leftClickType = false;//左侧菜单点击引发的右侧联动 private ShopCart shopCart; // private FakeAddImageView fakeAddImageView; private ImageView shoppingCartView; private FrameLayout shopingCartLayout; private TextView totalPriceTextView; private TextView totalPriceNumTextView; private RelativeLayout mainLayout; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initData(); initView(); initAdapter(); } private void initView(){ mainLayout = (RelativeLayout) findViewById(R.id.main_layout); leftMenu = (RecyclerView)findViewById(R.id.left_menu); rightMenu = (RecyclerView)findViewById(R.id.right_menu); headerView = (TextView)findViewById(R.id.right_menu_tv); headerLayout = (LinearLayout)findViewById(R.id.right_menu_item);// fakeAddImageView = (FakeAddImageView)findViewById(R.id.right_dish_fake_add); bottomLayout = (LinearLayout)findViewById(R.id.shopping_cart_bottom); shoppingCartView = (ImageView) findViewById(R.id.shopping_cart); shopingCartLayout = (FrameLayout) findViewById(R.id.shopping_cart_layout); totalPriceTextView = (TextView)findViewById(R.id.shopping_cart_total_tv); totalPriceNumTextView = (TextView)findViewById(R.id.shopping_cart_total_num); leftMenu.setLayoutManager(new LinearLayoutManager(this)); rightMenu.setLayoutManager(new LinearLayoutManager(this)); rightMenu.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrollStateChanged(RecyclerView recyclerView, int newState) { super.onScrollStateChanged(recyclerView, newState); } @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { super.onScrolled(recyclerView, dx, dy); if( recyclerView.canScrollVertically(1)==false) {//无法下滑 showHeadView(); return; } View underView = null; if(dy>0) underView = rightMenu.findChildViewUnder(headerLayout.getX(),headerLayout.getMeasuredHeight()+1); else underView = rightMenu.findChildViewUnder(headerLayout.getX(),0); if(underView!=null && underView.getContentDescription()!=null ){ int position = Integer.parseInt(underView.getContentDescription().toString()); DishMenu menu = rightAdapter.getMenuOfMenuByPosition(position); if(leftClickType || !menu.getMenuName().equals(headMenu.getMenuName())) { if (dy> 0 && headerLayout.getTranslationY()<=1 && headerLayout.getTranslationY()>= -1 * headerLayout.getMeasuredHeight()*4/5 && !leftClickType) {// underView.getTop()>9 int dealtY = underView.getTop() - headerLayout.getMeasuredHeight(); headerLayout.setTranslationY(dealtY);// Log.e(TAG, "onScrolled: "+headerLayout.getTranslationY()+" "+headerLayout.getBottom()+" - "+headerLayout.getMeasuredHeight() ); } else if(dy<0 && headerLayout.getTranslationY()<=0 && !leftClickType) { headerView.setText(menu.getMenuName()); int dealtY = underView.getBottom() - headerLayout.getMeasuredHeight(); headerLayout.setTranslationY(dealtY);// Log.e(TAG, "onScrolled: "+headerLayout.getTranslationY()+" "+headerLayout.getBottom()+" - "+headerLayout.getMeasuredHeight() ); } else{ headerLayout.setTranslationY(0); headMenu = menu; headerView.setText(headMenu.getMenuName()); for (int i = 0; i < dishMenuList.size(); i++) { if (dishMenuList.get(i) == headMenu) { leftAdapter.setSelectedNum(i); break; } } if(leftClickType)leftClickType=false; Log.e(TAG, "onScrolled: "+menu.getMenuName() ); } } } } }); shopingCartLayout.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { showCart(view); } }); } private void initData(){ shopCart = new ShopCart(); dishMenuList = new ArrayList<>(); ArrayList<Dish> dishs1 = new ArrayList<>(); dishs1.add(new Dish("面包",1.0,10)); dishs1.add(new Dish("蛋挞",1.0,10)); dishs1.add(new Dish("牛奶",1.0,10)); dishs1.add(new Dish("肠粉",1.0,10)); dishs1.add(new Dish("绿茶饼",1.0,10)); dishs1.add(new Dish("花卷",1.0,10)); dishs1.add(new Dish("包子",1.0,10)); DishMenu breakfast = new DishMenu("早点",dishs1); ArrayList<Dish> dishs2 = new ArrayList<>(); dishs2.add(new Dish("粥",1.0,10)); dishs2.add(new Dish("炒饭",1.0,10)); dishs2.add(new Dish("炒米粉",1.0,10)); dishs2.add(new Dish("炒粿条",1.0,10)); dishs2.add(new Dish("炒牛河",1.0,10)); dishs2.add(new Dish("炒菜",1.0,10)); DishMenu launch = new DishMenu("午餐",dishs2); ArrayList<Dish> dishs3 = new ArrayList<>(); dishs3.add(new Dish("淋菜",1.0,10)); dishs3.add(new Dish("川菜",1.0,10)); dishs3.add(new Dish("湘菜",1.0,10)); dishs3.add(new Dish("粤菜",1.0,10)); dishs3.add(new Dish("赣菜",1.0,10)); dishs3.add(new Dish("东北菜",1.0,10)); DishMenu evening = new DishMenu("晚餐",dishs3); ArrayList<Dish> dishs4 = new ArrayList<>(); dishs4.add(new Dish("淋菜",1.0,10)); dishs4.add(new Dish("川菜",1.0,10)); dishs4.add(new Dish("湘菜",1.0,10)); dishs4.add(new Dish("粤菜",1.0,10)); dishs4.add(new Dish("赣菜",1.0,10)); dishs4.add(new Dish("东北菜",1.0,10)); DishMenu menu1 = new DishMenu("夜宵",dishs3); dishMenuList.add(breakfast); dishMenuList.add(launch); dishMenuList.add(evening); dishMenuList.add(menu1); } private void initAdapter(){ leftAdapter = new LeftMenuAdapter(this,dishMenuList); rightAdapter = new RightDishAdapter(this,dishMenuList,shopCart); rightMenu.setAdapter(rightAdapter); leftMenu.setAdapter(leftAdapter); leftAdapter.addItemSelectedListener(this); rightAdapter.setShopCartImp(this); initHeadView(); } private void initHeadView(){ headMenu = rightAdapter.getMenuOfMenuByPosition(0); headerLayout.setContentDescription("0"); headerView.setText(headMenu.getMenuName()); } @Override protected void onDestroy() { super.onDestroy(); leftAdapter.removeItemSelectedListener(this); } private void showHeadView(){ headerLayout.setTranslationY(0); View underView = rightMenu.findChildViewUnder(headerView.getX(),0); if(underView!=null && underView.getContentDescription()!=null){ int position = Integer.parseInt(underView.getContentDescription().toString()); DishMenu menu = rightAdapter.getMenuOfMenuByPosition(position+1); headMenu = menu; headerView.setText(headMenu.getMenuName()); for (int i = 0; i < dishMenuList.size(); i++) { if (dishMenuList.get(i) == headMenu) { leftAdapter.setSelectedNum(i); break; } } } } @Override public void onLeftItemSelected(int position, DishMenu menu) { int sum=0; for(int i = 0;i<position;i++){ sum+=dishMenuList.get(i).getDishList().size()+1; } LinearLayoutManager layoutManager = (LinearLayoutManager) rightMenu.getLayoutManager(); layoutManager.scrollToPositionWithOffset(sum,0); leftClickType = true; } @Override public void add(View view,int position) { int[] addLocation = new int[2]; int[] cartLocation = new int[2]; int[] recycleLocation = new int[2]; view.getLocationInWindow(addLocation); shoppingCartView.getLocationInWindow(cartLocation); rightMenu.getLocationInWindow(recycleLocation); PointF startP = new PointF(); PointF endP = new PointF(); PointF controlP = new PointF(); startP.x = addLocation[0]; startP.y = addLocation[1]-recycleLocation[1]; endP.x = cartLocation[0]; endP.y = cartLocation[1]-recycleLocation[1]; controlP.x = endP.x; controlP.y = startP.y; final FakeAddImageView fakeAddImageView = new FakeAddImageView(this); mainLayout.addView(fakeAddImageView); fakeAddImageView.setImageResource(R.drawable.ic_add_circle_blue_700_36dp); fakeAddImageView.getLayoutParams().width = getResources().getDimensionPixelSize(R.dimen.item_dish_circle_size); fakeAddImageView.getLayoutParams().height = getResources().getDimensionPixelSize(R.dimen.item_dish_circle_size); fakeAddImageView.setVisibility(View.VISIBLE); ObjectAnimator addAnimator = ObjectAnimator.ofObject(fakeAddImageView, "mPointF", new PointFTypeEvaluator(controlP), startP, endP); addAnimator.setInterpolator(new AccelerateInterpolator()); addAnimator.addListener(new Animator.AnimatorListener() { @Override public void onAnimationStart(Animator animator) { fakeAddImageView.setVisibility(View.VISIBLE); } @Override public void onAnimationEnd(Animator animator) { fakeAddImageView.setVisibility(View.GONE); mainLayout.removeView(fakeAddImageView); } @Override public void onAnimationCancel(Animator animator) { } @Override public void onAnimationRepeat(Animator animator) { } }); ObjectAnimator scaleAnimatorX = new ObjectAnimator().ofFloat(shoppingCartView,"scaleX", 0.6f, 1.0f); ObjectAnimator scaleAnimatorY = new ObjectAnimator().ofFloat(shoppingCartView,"scaleY", 0.6f, 1.0f); scaleAnimatorX.setInterpolator(new AccelerateInterpolator()); scaleAnimatorY.setInterpolator(new AccelerateInterpolator()); AnimatorSet animatorSet = new AnimatorSet(); animatorSet.play(scaleAnimatorX).with(scaleAnimatorY).after(addAnimator); animatorSet.setDuration(800); animatorSet.start(); showTotalPrice(); } @Override public void remove(View view,int position) { showTotalPrice(); } private void showTotalPrice(){ if(shopCart!=null && shopCart.getShoppingTotalPrice()>0){ totalPriceTextView.setVisibility(View.VISIBLE); totalPriceTextView.setText("￥ "+shopCart.getShoppingTotalPrice()); totalPriceNumTextView.setVisibility(View.VISIBLE); totalPriceNumTextView.setText(""+shopCart.getShoppingAccount()); }else { totalPriceTextView.setVisibility(View.GONE); totalPriceNumTextView.setVisibility(View.GONE); } } private void showCart(View view) { if(shopCart!=null && shopCart.getShoppingAccount()>0){ ShopCartDialog dialog = new ShopCartDialog(this,shopCart,R.style.cartdialog); Window window = dialog.getWindow(); dialog.setShopCartDialogImp(this); dialog.setCanceledOnTouchOutside(true); dialog.setCancelable(true); dialog.show(); WindowManager.LayoutParams params = window.getAttributes(); params.width = WindowManager.LayoutParams.MATCH_PARENT; params.height = WindowManager.LayoutParams.WRAP_CONTENT; params.gravity = Gravity.BOTTOM; params.dimAmount =0.5f; window.setAttributes(params); } } @Override public void dialogDismiss() { showTotalPrice(); rightAdapter.notifyDataSetChanged(); }}阅读全文
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