gouwuche加载view
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//CartActivity在view
public class CartActivity extends AppCompatActivity implements IMainActivity, View.OnClickListener{ private CartExpanableListview expanableListview; private CartPresenter cartPresenter; private CheckBox check_all; private TextView text_total; private TextView text_buy; private CartBean cartBean; private RelativeLayout relative_progress; private MyAdapter myAdapter; private LinearLayout linear_bottom; private Handler handler = new Handler(){ @Override public void handleMessage(Message msg) { if (msg.what == 0){ CountPriceBean countPriceBean = (CountPriceBean) msg.obj; text_total.setText("合计:¥"+countPriceBean.getPriceString()); text_buy.setText("去结算("+countPriceBean.getCount()+")"); } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_cart); check_all = (CheckBox) findViewById(R.id.check_all); text_total = (TextView) findViewById(R.id.text_total); text_buy = (TextView) findViewById(R.id.text_buy); expanableListview = (CartExpanableListview) findViewById(R.id.expanable_listview); relative_progress = (RelativeLayout) findViewById(R.id.relative_progress); linear_bottom = (LinearLayout) findViewById(R.id.linear_layout); //去掉默认的指示器 expanableListview.setGroupIndicator(null); cartPresenter = new CartPresenter(this); //1.点击全选:选中/未选中...调用适配器中的方法...myAdapter.setIsCheckAll(true);来设置所有的一级和二级是否选中,计算 check_all.setOnClickListener(this); text_buy.setOnClickListener(this); } @Override protected void onResume() { super.onResume(); relative_progress.setVisibility(View.VISIBLE); //请求数据 cartPresenter.getCartData(ApiUtil.cartUrl); } @Override public void getSuccessCartData(CartBean cartBean) { relative_progress.setVisibility(View.GONE); this.cartBean = cartBean; if (cartBean != null){ //显示下面的 linear_bottom.setVisibility(View.VISIBLE); //1.根据组中子条目是否选中,,,决定该组是否选中...初始化一下每一组中isGroupCheck这个数据 for (int i = 0;i<cartBean.getData().size();i++){ if (isAllChildInGroupSelected(i)){ //更改i位置 组的选中状态 cartBean.getData().get(i).setGroupChecked(true); } } //2.根据每一个组是否选中的状态,,,初始化全选是否选中 check_all.setChecked(isAllGroupChecked()); //设置适配器 myAdapter = new MyAdapter(CartActivity.this, cartBean,handler,cartPresenter,relative_progress); expanableListview.setAdapter(myAdapter); //展开 for (int i= 0;i<cartBean.getData().size();i++){ expanableListview.expandGroup(i); } //3.根据子条目是否选中 初始化价格和数量 myAdapter.sendPriceAndCount(); }else { //隐藏下面的全选.... 等 linear_bottom.setVisibility(View.GONE); //显示去逛逛,,,添加购物车 Toast.makeText(CartActivity.this,"购物车为空,去逛逛",Toast.LENGTH_SHORT).show(); } } /** * 所有的一级列表是否选中 */ private boolean isAllGroupChecked() { for (int i =0;i<cartBean.getData().size();i++){ if (! cartBean.getData().get(i).isGroupChecked()){//代表一级列表有没选中的 return false; } } return true; } /** * 判断当前组里面所有的子条目是否选中 * @param groupPosition * @return */ private boolean isAllChildInGroupSelected(int groupPosition) { for (int i= 0;i<cartBean.getData().get(groupPosition).getList().size();i++){ //只要有一个没选中就返回false if (cartBean.getData().get(groupPosition).getList().get(i).getSelected() ==0){ return false; } } return true; } @Override public void onClick(View view) { switch (view.getId()){ case R.id.check_all: myAdapter.setAllChildState(check_all.isChecked()); break; case R.id.text_buy://去结算...试一下创建订单 break; } }}
//IView
public interface IMainActivity { void getSuccessCartData(CartBean cartBean);}
//custom
public class CartExpanableListview extends ExpandableListView { public CartExpanableListview(Context context) { super(context); } public CartExpanableListview(Context context, AttributeSet attrs) { super(context, attrs); } public CartExpanableListview(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int height = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE>>2,MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, height); }}
//adapter
public class MyAdapter extends BaseExpandableListAdapter{ private RelativeLayout relative_progress; private CartPresenter cartPresenter; private Handler handler; private CartBean cartBean; private Context context; private int size; private int childI; private int allSize; private int index; public MyAdapter(Context context, CartBean cartBean, Handler handler, CartPresenter cartPresenter, RelativeLayout relative_progress) { this.context = context; this.cartBean = cartBean; this.handler = handler; this.cartPresenter = cartPresenter; this.relative_progress = relative_progress; } @Override public int getGroupCount() { return cartBean.getData().size(); } @Override public int getChildrenCount(int groupPosition) { return cartBean.getData().get(groupPosition).getList().size(); } @Override public Object getGroup(int groupPosition) { return cartBean.getData().get(groupPosition); } @Override public Object getChild(int groupPosition, int childPosition) { return cartBean.getData().get(groupPosition).getList().get(childPosition); } @Override public long getGroupId(int groupPosition) { return groupPosition; } @Override public long getChildId(int groupPosition, int childPosition) { return childPosition; } @Override public boolean hasStableIds() { return true; } @Override public View getGroupView(int groupPosition, boolean b, View view, ViewGroup viewGroup) { final GroupHolder holder; if (view == null){ view = View.inflate(context, R.layout.group_item_layout,null); holder = new GroupHolder(); holder.check_group = view.findViewById(R.id.check_group); holder.text_group = view.findViewById(R.id.text_group); view.setTag(holder); }else { holder = (GroupHolder) view.getTag(); } final CartBean.DataBean dataBean = cartBean.getData().get(groupPosition); //赋值 holder.check_group.setChecked(dataBean.isGroupChecked()); holder.text_group.setText(dataBean.getSellerName()); //组的点击事件...也要去请求更新的接口 holder.check_group.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { relative_progress.setVisibility(View.VISIBLE);//显示 size = dataBean.getList().size(); childI = 0; updateAllInGroup(holder.check_group.isChecked(),dataBean); } }); return view; } /** * 更新一组的状态 * @param checked * @param dataBean */ private void updateAllInGroup(final boolean checked, final CartBean.DataBean dataBean) { CartBean.DataBean.ListBean listBean = dataBean.getList().get(childI);//0 //?uid=71&sellerid=1&pid=1&selected=0&num=10 Map<String, String> params = new HashMap<>(); params.put("uid","3690"); params.put("sellerid", String.valueOf(listBean.getSellerid())); params.put("pid", String.valueOf(listBean.getPid())); params.put("selected", String.valueOf(checked ? 1:0)); params.put("num", String.valueOf(listBean.getNum())); OkHttp3Util.doPost(ApiUtil.updateCartUrl, params, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { if (response.isSuccessful()){ childI = childI+1;//0,1,2...3 if (childI <size){ updateAllInGroup(checked,dataBean); }else { //所有的条目已经更新完成....再次请求查询购物车的数据 cartPresenter.getCartData(ApiUtil.cartUrl); } } } }); } @Override public View getChildView(int groupPosition, int childPosition, boolean b, View view, ViewGroup viewGroup) { ChildHolder holder; if (view == null){ view = View.inflate(context, R.layout.child_item_layout,null); holder = new ChildHolder(); holder.text_add = view.findViewById(R.id.text_add); holder.text_num = view.findViewById(R.id.text_num); holder.text_jian = view.findViewById(R.id.text_jian); holder.text_title = view.findViewById(R.id.text_title); holder.text_price = view.findViewById(R.id.text_price); holder.image_good = view.findViewById(R.id.image_good); holder.check_child = view.findViewById(R.id.check_child); holder.text_delete = view.findViewById(R.id.text_delete); view.setTag(holder); }else { holder = (ChildHolder) view.getTag(); } //赋值 final CartBean.DataBean.ListBean listBean = cartBean.getData().get(groupPosition).getList().get(childPosition); holder.text_num.setText(listBean.getNum()+"");//......注意 holder.text_price.setText("¥"+listBean.getBargainPrice()); holder.text_title.setText(listBean.getTitle()); //listBean.getSelected().....0false,,,1true //设置checkBox选中状态 holder.check_child.setChecked(listBean.getSelected()==0? false:true); /*implementation 'com.github.bumptech.glide:glide:4.4.0' annotationProcessor 'com.github.bumptech.glide:compiler:4.4.0'*/ //Glide.with(context).load(listBean.getImages().split("\\|")[0]).into(holder.image_good); String[] split = listBean.getImages().split("\\|"); ImageLoader.getInstance().displayImage (split[0],holder.image_good, ImageUtilText.ImageUtil()); //点击事件 holder.check_child.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { //点击的时候 更新当前条目选中的状态,,,更新完之后,请求查询购物车,重新展示数据 updateChildChecked(listBean); } }); //加号 holder.text_add.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { //请求更新的接口 updateChildNum(listBean,true); } }); //减号 holder.text_jian.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (listBean.getNum() == 1){ return; } //更新数量,,,减 updateChildNum(listBean,false); } }); return view; } /** * 更新数量 * @param listBean * @param */ private void updateChildNum(CartBean.DataBean.ListBean listBean, boolean isAdded) { //一旦执行更新的操作,,,progressBar显示 relative_progress.setVisibility(View.VISIBLE); //?uid=71&sellerid=1&pid=1&selected=0&num=10 Map<String, String> params = new HashMap<>(); params.put("uid","3690"); params.put("sellerid", String.valueOf(listBean.getSellerid())); params.put("pid", String.valueOf(listBean.getPid())); params.put("selected", String.valueOf(listBean.getSelected())); if (isAdded){ params.put("num", String.valueOf(listBean.getNum() + 1)); }else { params.put("num", String.valueOf(listBean.getNum() - 1)); } OkHttp3Util.doPost(ApiUtil.updateCartUrl, params, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { //更新成功之后...网络上的数据发生了改变...再次请求购物车的接口进行数据的展示 if (response.isSuccessful()){ cartPresenter.getCartData(ApiUtil.cartUrl); } } }); } /** * 更新子条目 网络上的状态 * @param listBean */ private void updateChildChecked(CartBean.DataBean.ListBean listBean) { //一旦执行更新的操作,,,progressBar显示 relative_progress.setVisibility(View.VISIBLE); //?uid=71&sellerid=1&pid=1&selected=0&num=10 Map<String, String> params = new HashMap<>(); params.put("uid","3690"); params.put("sellerid", String.valueOf(listBean.getSellerid())); params.put("pid", String.valueOf(listBean.getPid())); params.put("selected", String.valueOf(listBean.getSelected() == 0? 1:0)); params.put("num", String.valueOf(listBean.getNum())); OkHttp3Util.doPost(ApiUtil.updateCartUrl, params, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { //更新成功之后...网络上的数据发生了改变...再次请求购物车的接口进行数据的展示 if (response.isSuccessful()){ cartPresenter.getCartData(ApiUtil.cartUrl); } } }); } @Override public boolean isChildSelectable(int i, int i1) { return true; } /** * 计算价格和数量 并发送显示 */ public void sendPriceAndCount() { double price = 0; int count = 0; //通过判断二级列表是否勾选,,,,计算价格数量 for (int i=0;i<cartBean.getData().size();i++){ for (int j = 0;j<cartBean.getData().get(i).getList().size();j++){ if (cartBean.getData().get(i).getList().get(j).getSelected() == 1){ //价格是打折的价格........... price += cartBean.getData().get(i).getList().get(j).getNum() * cartBean.getData().get(i).getList().get(j).getBargainPrice(); count += cartBean.getData().get(i).getList().get(j).getNum(); } } } //精准的保留double的两位小数 DecimalFormat decimalFormat = new DecimalFormat("#.00"); String priceString = decimalFormat.format(price); CountPriceBean countPriceBean = new CountPriceBean(priceString, count); //发送...显示 Message msg = Message.obtain(); msg.what = 0; msg.obj = countPriceBean; handler.sendMessage(msg); } /** * 根据全选的状态,,,,跟新每一个子条目的状态,,,全部更新完成后,查询购物车的数据进行展示 * @param checked */ public void setAllChildState(boolean checked) { //创建一个集合 装所有的子条目 List<CartBean.DataBean.ListBean> allList = new ArrayList<>(); for (int i=0;i<cartBean.getData().size();i++){ for (int j=0;j<cartBean.getData().get(i).getList().size();j++){ allList.add(cartBean.getData().get(i).getList().get(j)); } } relative_progress.setVisibility(View.VISIBLE); allSize = allList.size(); index = 0; //通过 递归 更新所有子条目的选中 updateAllChild(allList,checked); } /** * 根据全选 跟新所有的子条目 * @param allList * @param checked */ private void updateAllChild(final List<CartBean.DataBean.ListBean> allList, final boolean checked) { CartBean.DataBean.ListBean listBean = allList.get(index);//0 //跟新的操作 //?uid=71&sellerid=1&pid=1&selected=0&num=10 Map<String, String> params = new HashMap<>(); params.put("uid","3690"); params.put("sellerid", String.valueOf(listBean.getSellerid())); params.put("pid", String.valueOf(listBean.getPid())); params.put("selected", String.valueOf(checked ? 1:0)); params.put("num", String.valueOf(listBean.getNum())); OkHttp3Util.doPost(ApiUtil.updateCartUrl, params, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { if (response.isSuccessful()){ index = index +1;//0,1,2......3 if (index < allSize){ updateAllChild(allList,checked); }else { //查询购物车 cartPresenter.getCartData(ApiUtil.cartUrl); } } } }); } private class GroupHolder{ CheckBox check_group; TextView text_group; } private class ChildHolder{ CheckBox check_child; ImageView image_good; TextView text_title; TextView text_price; TextView text_jian; TextView text_num; TextView text_add; TextView text_delete; }}
//drawable
//check_box_selector.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_checked="true" android:drawable="@drawable/shopping_cart_checked"/> <item android:state_checked="false" android:drawable="@drawable/shopping_cart_none_check"/> <item android:drawable="@drawable/shopping_cart_none_check"/></selector>//bian_kuang_line.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#ffffff" /> <stroke android:width="0.1dp" android:color="#000000" /></shape>
//layout
//activity的activity_cart
<RelativeLayout<ScrollView android:layout_above="@+id/linear_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <!--购物车的二级列表--> <com.bwie.mygouwuche.view.custom.CartExpanableListview android:id="@+id/expanable_listview" android:layout_width="match_parent" android:layout_height="wrap_content"> </com.bwie.mygouwuche.view.custom.CartExpanableListview> <!--为你推荐--> <LinearLayout android:layout_marginTop="20dp" android:orientation="vertical" android:background="#00ff00" android:layout_width="match_parent" android:layout_height="500dp"> </LinearLayout> </LinearLayout></ScrollView><RelativeLayout android:visibility="gone" android:id="@+id/relative_progress" android:layout_above="@+id/linear_layout" android:layout_width="match_parent" android:layout_height="match_parent"> <ProgressBar android:layout_centerInParent="true" android:layout_width="wrap_content" android:layout_height="wrap_content" /></RelativeLayout><LinearLayout android:id="@+id/linear_layout" android:layout_alignParentBottom="true" android:gravity="center_vertical" android:orientation="horizontal" android:layout_width="match_parent" android:layout_height="50dp"> <CheckBox android:layout_marginLeft="10dp" android:button="@null" android:background="@drawable/check_box_selector" android:id="@+id/check_all" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/text_total" android:text="合计:¥0.00" android:layout_weight="2" android:layout_width="0dp" android:layout_height="wrap_content" /> <TextView android:text="去结算(0)" android:background="#ff0000" android:textColor="#ffffff" android:gravity="center" android:id="@+id/text_buy" android:layout_width="0dp" android:layout_weight="1" android:layout_height="match_parent" /></LinearLayout>
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