购物车一级列表
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MainActivity
public class MainActivity extends Activity { RecyclerView rv; LinearLayout linearlayout; TextView tv_main, third_totalprice, third_totalnum, third_submit; private ShopAdapter adapter; private LinearLayoutManager manager; private List<ShopBean.OrderDataBean.CartlistBean> mAllorderList = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); tv_main = findViewById(R.id.tv_main); third_totalprice = findViewById(R.id.third_totalprice); third_totalnum = findViewById(R.id.third_totalnum); third_submit = findViewById(R.id.third_submit); linearlayout = findViewById(R.id.linearlayout); rv = findViewById(R.id.rv); //模拟网络请求 getData(); //全选 // 1 为选中 2 选中 tv_main.setTag(1); manager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false); adapter = new ShopAdapter(this); rv.setLayoutManager(manager); rv.setAdapter(adapter); adapter.add(mAllorderList); adapter.setCheckBoxListener(new ShopAdapter.CheckBoxListener() { @Override public void check(int position, int count, boolean check, List<ShopBean.OrderDataBean.CartlistBean> list) { sum(list); } }); adapter.setCustomViewListener(new ShopAdapter.CustomViewListener() { @Override public void click(int count,List<ShopBean.OrderDataBean.CartlistBean> list) { sum(list); } }); adapter.setDelListener(new ShopAdapter.DelListener() { @Override public void del(int position,List<ShopBean.OrderDataBean.CartlistBean> list) { sum(list); } }); } float price = 0; int count; /** * 计算总价 * * @param mAllOrderList */ private void sum(List<ShopBean.OrderDataBean.CartlistBean> mAllOrderList) { price = 0; count = 0; boolean allCheck = true; for (ShopBean.OrderDataBean.CartlistBean bean : mAllOrderList) { if (bean.isChock()) { //得到总价 price += bean.getPrice() * bean.getCount(); //得到商品个数 count += bean.getCount(); } else { // 只要有一个商品未选中，全选按钮 应该设置成 为选中 allCheck = false; } } third_totalprice.setText("总价: " + price); third_totalnum.setText("共" + count + "件商品"); if (allCheck) { tv_main.setTag(2); tv_main.setBackgroundResource(R.drawable.shopcart_selected); } else { tv_main.setTag(1); tv_main.setBackgroundResource(R.drawable.shopcart_unselected); } } public void getData() { try { //模拟网络请求 InputStream inputStream = getAssets().open("shop.json"); String data = convertStreamToString(inputStream); Gson gson = new Gson(); ShopBean shopBean = gson.fromJson(data, ShopBean.class); for (int i = 0; i < shopBean.getOrderData().size(); i++) { int length = shopBean.getOrderData().get(i).getCartlist().size(); for (int j = 0; j < length; j++) { mAllorderList.add(shopBean.getOrderData().get(i).getCartlist().get(j)); } } } catch (Exception e) { e.printStackTrace(); } } public static String convertStreamToString(InputStream is) { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; try { while ((line = reader.readLine()) != null) { sb.append(line); } } catch (IOException e) { e.printStackTrace(); } finally { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); } boolean select = false; @OnClick(R.id.tv_main) public void onClick() { //全选按钮 点击事件 int tag = (Integer) tv_main.getTag(); if (tag == 1) { tv_main.setTag(2); select = true; } else { tv_main.setTag(1); select = false; } for (ShopBean.OrderDataBean.CartlistBean bean : mAllorderList) { bean.setChock(select); } adapter.notifyDataSetChanged(); sum(adapter.getList()); }}
主Activtiy布局
<?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:orientation="vertical" android:layout_height="match_parent" tools:context="com.zhangyongbo.gouwuche.MainActivity"> <android.support.v7.widget.RecyclerView android:id="@+id/rv" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" /> <LinearLayout android:id="@+id/linearlayout" android:layout_weight="0" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center_vertical" > <TextView android:id="@+id/tv_main" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="@dimen/margin_10dp" android:drawableLeft="@drawable/shopcart_unselected" android:text="全选" android:drawablePadding="@dimen/padding_5dp" /> <LinearLayout android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical" > <TextView android:id="@+id/third_totalprice" android:layout_width="200dp" android:layout_height="wrap_content" android:paddingLeft="@dimen/padding_10dp" android:paddingTop="@dimen/padding_10dp" android:text="总价：" android:textColor="#000000" android:textSize="@dimen/common_font_size_16" /> <TextView android:textColor="#000000" android:id="@+id/third_totalnum" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingLeft="@dimen/padding_10dp" android:text="共0件商品" android:textSize="@dimen/common_font_size_14" android:paddingBottom="@dimen/padding_10dp" /> </LinearLayout> <TextView android:id="@+id/third_submit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="去结算" android:paddingLeft="@dimen/margin_30dp" android:paddingRight="@dimen/margin_30dp" android:paddingTop="@dimen/padding_10dp" android:paddingBottom="@dimen/padding_10dp" android:textColor="#000000" android:layout_marginRight="@dimen/margin_10dp" /> </LinearLayout></LinearLayout>
自定义View
public class CustomView extends LinearLayout { private EditText editText; private Button revserse; private Button add; private int mCount = 1 ; public CustomView(Context context) { super(context); } public CustomView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); View view = LayoutInflater.from(context).inflate(R.layout.customview,null,false); revserse = (Button) view.findViewById(R.id.revserse); add = (Button) view.findViewById(R.id.add); editText = (EditText) view.findViewById(R.id.content); revserse.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { //减号 try { String content = editText.getText().toString().trim() ; int count = Integer.valueOf(content)-1; mCount = count; if(count >=1){ editText.setText(count+""); } if(listener != null){ listener.click(count); } } catch (NumberFormatException e) { e.printStackTrace(); } } }); add.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { //加号 try { String content = editText.getText().toString().trim() ; int count = Integer.valueOf(content)+1; mCount = count; editText.setText(count+""); if(listener != null){ listener.click(count); } } catch (NumberFormatException e) { e.printStackTrace(); } } }); addView(view); } public void setEditText(int count){ editText.setText(count+""); } public int getCurrentCount(){ return mCount ; } public CustomView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } public ClickListener listener; public void setListener(ClickListener listener){ this.listener = listener; } public interface ClickListener { public void click(int count); }}
自定义View布局xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="match_parent"> <Button android:layout_width="10dp" android:layout_height="wrap_content" android:id="@+id/revserse" android:text="-" android:background="#00FFFFFF"/> <EditText android:text="1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/content"/> <Button android:background="#00FFFFFF" android:text="+" android:id="@+id/add" android:layout_width="10dp" android:layout_height="wrap_content" /></LinearLayout>
适配器
public class ShopAdapter extends RecyclerView.Adapter<ShopAdapter.IViewHolder> { private Context context; private List<ShopBean.OrderDataBean.CartlistBean> list ; public ShopAdapter(Context context) { this.context = context; } /** * 更新数据 * @param list */ public void add(List<ShopBean.OrderDataBean.CartlistBean> list){ if(this.list == null){ this.list = new ArrayList<>(); } this.list.addAll(list); notifyDataSetChanged(); } @Override public ShopAdapter.IViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = View.inflate(context, R.layout.shop_apdata, null); return new IViewHolder(view); } @Override public void onBindViewHolder(final ShopAdapter.IViewHolder holder, final int position) { //防止checkbox 滑动 错乱 holder.checkbox.setChecked(list.get(position).isChock()); holder.danjia.setText(list.get(position).getPrice()+""); ImageLoader.getInstance().displayImage(list.get(position).getDefaultPic(),holder.shopface); /** * checkbox 点击事件 */ holder.checkbox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { list.get(position).setChock(holder.checkbox.isChecked()); notifyDataSetChanged(); if(checkBoxListener != null){ checkBoxListener.check(position,holder.customviewid.getCurrentCount(),holder.checkbox.isChecked(),list); } } }); /** * 加减监听 */ holder.customviewid.setListener(new CustomView.ClickListener() { @Override public void click(int count) { //更新数据源 list.get(position).setCount(count); notifyDataSetChanged(); if(listener != null){ listener.click(count,list); } } }); /** * 删除点击事件 */ holder.del.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { list.remove(position); notifyDataSetChanged(); if(delListener != null){ delListener.del(position,list); } } }); } @Override public int getItemCount() { return list == null ? 0 : list.size(); } static class IViewHolder extends RecyclerView.ViewHolder { CheckBox checkbox; ImageView shopface; TextView danjia; CustomView customviewid; Button del ; IViewHolder(View view) { super(view); checkbox = view.findViewById(R.id.checked_shop); shopface = view.findViewById(R.id.shopface); danjia = view.findViewById(R.id.danjia); customviewid = view.findViewById(R.id.customviewid); del = view.findViewById(R.id.shop_btn_del); } } public List<ShopBean.OrderDataBean.CartlistBean> getList(){ return list; } CheckBoxListener checkBoxListener; /** * checkbox 点击事件 * @param listener */ public void setCheckBoxListener(CheckBoxListener listener){ this.checkBoxListener = listener; } interface CheckBoxListener { public void check(int position,int count, boolean check,List<ShopBean.OrderDataBean.CartlistBean> list); } CustomViewListener listener; /** * 加减号 点击事件 * @param listener */ public void setCustomViewListener(CustomViewListener listener){ this.listener = listener; } interface CustomViewListener { public void click(int count,List<ShopBean.OrderDataBean.CartlistBean> list); } DelListener delListener ; /** * 加减号 删除按钮事件 * @param listener */ public void setDelListener(DelListener listener) { this.delListener = listener ; } interface DelListener { public void del(int position,List<ShopBean.OrderDataBean.CartlistBean> list); }}
子布局
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="wrap_content"> <CheckBox android:layout_gravity="center" android:id="@+id/checked_shop" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:id="@+id/shopface" android:layout_width="80dp" android:layout_height="80dp" android:src="@mipmap/ic_launcher"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/danjia"/> <com.zhangyongbo.gouwuche.CustomView android:id="@+id/customviewid" android:layout_width="100dp" android:layout_height="50dp"/> </LinearLayout> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/shop_btn_del" android:text="删除"/> </LinearLayout></LinearLayout>
ImageLoade的文件
public class MyApps extends Application { @Override public void onCreate() { super.onCreate(); File file = new File(Environment.getExternalStorageDirectory().getPath()+"Images0718"); ImageLoaderConfiguration conn = new ImageLoaderConfiguration.Builder(this) .threadPoolSize(5) .memoryCacheExtraOptions(80, 80) .memoryCacheSize(2 * 1024 * 1024) .threadPriority(1000) .diskCacheFileNameGenerator(new Md5FileNameGenerator()) .diskCacheSize(50 * 1024 * 1024) .build(); ImageLoader.getInstance().init(conn); }}
这里一级列表不是网络请求数据,这里用到的是假数据
下面是bean包
public class ShopBean { /** * code : 200 * orderData : [{"shopId":1,"shopName":"京东自营","cartlist":[{"id":1,"shopId":1,"shopName":"京东自营","defaultPic":"https://img30.360buyimg.com/popWareDetail/jfs/t3208/194/7616404169/244198/369625db/58b7d093N03520fb7.jpg","productId":1,"productName":"三只松鼠_零食大礼包","color":"黑色","size":"18L","price":20,"count":1},{"id":2,"shopId":1,"shopName":"京东自营","defaultPic":"https://img14.360buyimg.com/n0/jfs/t2971/15/167732091/93002/204c1016/574d9d9aNe4e6fa7a.jpg","productId":2,"productName":"小米心跳手环","color":"白色","size":"20XXL","price":148,"count":1}]},{"shopId":2,"shopName":"海澜之家","cartlist":[{"id":1,"shopId":2,"shopName":"海澜之家","defaultPic":"https://img30.360buyimg.com/popWaterMark/jfs/t4075/83/1343091204/132469/9034cb9c/5873496bN68020ba8.jpg","productId":1,"productName":"短袖T恤男 2017夏季新品","color":"蓝色","size":"30X","price":181,"count":1}]},{"shopId":3,"shopName":"OPPO官方旗舰店","cartlist":[{"id":1,"shopId":3,"shopName":"OPPO官方旗舰店","defaultPic":"https://img10.360buyimg.com/cms/jfs/t6064/272/2163314583/157700/442d6477/593c1c49N7c63a7d9.jpg","productId":1,"productName":"OPPO R11 全网通","color":"蓝色","size":"30X","price":1999,"count":1},{"id":2,"shopId":3,"shopName":"OPPO官方旗舰店","defaultPic":"https://img14.360buyimg.com/n0/jfs/t3142/194/4953241722/254855/1651c2b1/585b9021Nf653e48a.jpg","productId":1,"productName":"OPPO R9 全网通","color":"蓝色","size":"30X","price":999,"count":1}]}] */ private int code; private List<OrderDataBean> orderData; public int getCode() { return code; } public void setCode(int code) { this.code = code; } public List<OrderDataBean> getOrderData() { return orderData; } public void setOrderData(List<OrderDataBean> orderData) { this.orderData = orderData; } public static class OrderDataBean { /** * shopId : 1 * shopName : 京东自营 * cartlist : [{"id":1,"shopId":1,"shopName":"京东自营","defaultPic":"https://img30.360buyimg.com/popWareDetail/jfs/t3208/194/7616404169/244198/369625db/58b7d093N03520fb7.jpg","productId":1,"productName":"三只松鼠_零食大礼包","color":"黑色","size":"18L","price":20,"count":1},{"id":2,"shopId":1,"shopName":"京东自营","defaultPic":"https://img14.360buyimg.com/n0/jfs/t2971/15/167732091/93002/204c1016/574d9d9aNe4e6fa7a.jpg","productId":2,"productName":"小米心跳手环","color":"白色","size":"20XXL","price":148,"count":1}] */ private int shopId; private String shopName; private List<CartlistBean> cartlist; public int getShopId() { return shopId; } public void setShopId(int shopId) { this.shopId = shopId; } public String getShopName() { return shopName; } public void setShopName(String shopName) { this.shopName = shopName; } public List<CartlistBean> getCartlist() { return cartlist; } public void setCartlist(List<CartlistBean> cartlist) { this.cartlist = cartlist; } public static class CartlistBean { /** * id : 1 * shopId : 1 * shopName : 京东自营 * defaultPic : https://img30.360buyimg.com/popWareDetail/jfs/t3208/194/7616404169/244198/369625db/58b7d093N03520fb7.jpg * productId : 1 * productName : 三只松鼠_零食大礼包 * color : 黑色 * size : 18L * price : 20 * count : 1 */ private int id; private int shopId; private String shopName; private String defaultPic; private int productId; private String productName; private String color; private String size; private int price; private int count; private boolean chock; public boolean isChock() { return chock; } public void setChock(boolean chock) { this.chock = chock; } public int getId() { return id; } public void setId(int id) { this.id = id; } public int getShopId() { return shopId; } public void setShopId(int shopId) { this.shopId = shopId; } public String getShopName() { return shopName; } public void setShopName(String shopName) { this.shopName = shopName; } public String getDefaultPic() { return defaultPic; } public void setDefaultPic(String defaultPic) { this.defaultPic = defaultPic; } public int getProductId() { return productId; } public void setProductId(int productId) { this.productId = productId; } public String getProductName() { return productName; } public void setProductName(String productName) { this.productName = productName; } public String getColor() { return color; } public void setColor(String color) { this.color = color; } public String getSize() { return size; } public void setSize(String size) { this.size = size; } public int getPrice() { return price; } public void setPrice(int price) { this.price = price; } public int getCount() { return count; } public void setCount(int count) { this.count = count; } } }}
这里还需要一个json数据，选中你的项目右击点击NeW然后选择Folder
就ok然后不Json文件粘进assets里就ok。
下面事需要的依赖
compile 'com.android.support:appcompat-v7:26.0.0-alpha1'compile files('libs/universal-image-loader-1.9.3-with-sources.jar')compile files('libs/gson-2.2.4.jar')compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'compile 'com.jakewharton:butterknife:7.0.1'架包需要一个
Gson和ImageLoagade的就好，清单文件需要一个联网全选，ImageLoage
需要在清单文件注册.
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