购物车 ( Retrofit+RxJava+MVP)
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加减器
public class Addview extends RelativeLayout { public TextView count; public Addview(Context context) { this(context,null); } public Addview(Context context, AttributeSet attrs) { this(context, attrs,0); } public Addview(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); initView(context, attrs, defStyleAttr); } private OnAddDeleteClickListener listener; //对外提供一个点击的回调接口 public interface OnAddDeleteClickListener{ void onAddClick(View v); void onDelClick(View v); } public void setOnAddDeleteClick(OnAddDeleteClickListener listener){ this.listener = listener; } private void initView(final Context context, AttributeSet attrs, int defStyleAttr) { View view = View.inflate(context, R.layout.view_add, this); ImageView delete = (ImageView)view.findViewById(R.id.delete); count = (TextView)view.findViewById(R.id.count); ImageView add = (ImageView)view.findViewById(R.id.add); delete.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { listener.onDelClick(view); } }); add.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { listener.onAddClick(view); } }); } //对外提供设置EditText值的方法 public void setNumber(int number){ count.setText(number + ""); } //得到控件原来的值,并转成int类型 public int getNumber(){ int number = Integer.parseInt(count.getText().toString().trim()); return number; }}加减器布局:<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <ImageView android:id="@+id/delete" android:src="@drawable/down" android:layout_width="25dp" android:layout_height="25dp" /> <View android:id="@+id/view" android:layout_width="20dp" android:layout_height="1dp" android:layout_marginTop="2dp" android:background="#5c595c" android:layout_toRightOf="@id/delete"/> <TextView android:id="@+id/count" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="1" android:layout_toRightOf="@id/delete" android:layout_marginTop="5dp" android:layout_marginLeft="5dp"/> <View android:layout_width="20dp" android:layout_height="1dp" android:background="#5c595c" android:layout_toRightOf="@id/delete" android:layout_marginTop="23dp"/> <ImageView android:id="@+id/add" android:src="@drawable/up" android:layout_width="25dp" android:layout_height="25dp" android:layout_alignParentTop="true" android:layout_toRightOf="@+id/view" android:layout_toEndOf="@+id/view" /></RelativeLayout>
购物车布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:orientation="vertical" android:layout_height="match_parent" android:layout_above="@+id/linearLayout"> <ExpandableListView android:layout_width="match_parent" android:layout_height="match_parent" android:groupIndicator="@null" android:id="@+id/ev"> </ExpandableListView> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:id="@+id/linearLayout"> <CheckBox android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:id="@+id/cb_all" android:text="全选"/> <TextView android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:id="@+id/text_sum" android:text="总价:0.0 "/> <Button android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:id="@+id/btn_del" android:text="删除"/> </LinearLayout></RelativeLayout>
购物车适配器
public class CarAdapter extends BaseExpandableListAdapter{ private Context context; private List<FatherBean> list; private List<List<ChildBean>> lists; private CarFragment f; public CarAdapter(Context context, List<FatherBean> list, List<List<ChildBean>> lists, CarFragment f) { this.context = context; this.list = list; this.lists = lists; this.f=f; } @Override public int getGroupCount() { return list.size(); } @Override public int getChildrenCount(int i) { return lists.get(i).size(); } @Override public Object getGroup(int i) { return list.get(i); } @Override public Object getChild(int i, int i1) { return lists.get(i).get(i1); } @Override public long getGroupId(int i) { return i; } @Override public long getChildId(int i, int i1) { return i1; } @Override public View getGroupView(final int i, boolean b, View view, ViewGroup viewGroup) { final FatherBean fatherbean = list.get(i); final List<ChildBean> childbeen = lists.get(i); view = View.inflate(this.context, R.layout.view_father_car, null); TextView textView = (TextView) view.findViewById(R.id.title_father_car); final CheckBox checkBox = (CheckBox) view.findViewById(R.id.cb_father_car); textView.setText(fatherbean.getName()); checkBox.setChecked(fatherbean.isflag()); //复选框点击事件 checkBox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { boolean checked = checkBox.isChecked(); fatherbean.setIsflag(checked); for (int j=0;j<childbeen.size();j++){ childbeen.get(j).setIsflag(checked); } //计算总价方法 f.mouth(f); boolean setcheck = f.setcheck(); f.all.setChecked(setcheck); notifyDataSetChanged(); } }); return view; } @Override public View getChildView(final int i, final int i1, boolean b, View view, ViewGroup viewGroup) { final ChildBean bean = lists.get(i).get(i1); //加载布局 view= View.inflate(context, R.layout.view_child_car,null); //获取构件 ImageView img = (ImageView) view.findViewById(R.id.child_img); TextView title = (TextView) view.findViewById(R.id.child_tit); Addview addview = (Addview) view.findViewById(R.id.addview); final TextView price = (TextView) view.findViewById(R.id.child_price); final CheckBox checkBox = (CheckBox) view.findViewById(R.id.cb_child); //修改内容 addview.setNumber(bean.getNum()); price.setText(bean.getPrice()+""); title.setText(bean.getName()); checkBox.setChecked(lists.get(i).get(i1).isflag()); Glide.with(context).load(bean.getImgurl()).into(img); //加减器点击事件 addview.setOnAddDeleteClick(new Addview.OnAddDeleteClickListener() { @Override public void onAddClick(View v) { int num = bean.getNum(); num++; bean.setNum(num); //计算总价方法 f.mouth(f); notifyDataSetChanged(); } @Override public void onDelClick(View v) { int num = bean.getNum(); if(num>1){ num--; } bean.setNum(num); //计算总价方法 f.mouth(f); notifyDataSetChanged(); } }); checkBox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { boolean checked = checkBox.isChecked(); lists.get(i).get(i1).setIsflag(checked); boolean b=true; if (checked){ for (int j=0;j<lists.get(i).size();j++){ boolean flag = lists.get(i).get(j).isflag(); if (flag==false){ b=false; } } //修改父级的选中状态 if (b){ list.get(i).setIsflag(true); } }else{ list.get(i).setIsflag(false); } //计算总价方法 f.mouth(f); boolean setcheck = f.setcheck(); f.all.setChecked(setcheck); notifyDataSetChanged(); } }); return view; } @Override public boolean isChildSelectable(int i, int i1) { return true; } @Override public boolean hasStableIds() { return true; }}<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"> <CheckBox android:id="@+id/cb_child" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_marginTop="35dp" /> <ImageView android:id="@+id/child_img" android:layout_width="100dp" android:layout_height="100dp" android:src="@mipmap/ic_launcher_round" /> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="30dp" android:text="xxx" android:id="@+id/child_tit"/> <LinearLayout android:layout_marginTop="10dp" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"> <TextView android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:text="xxx" android:id="@+id/child_price"/> <com.bwie.car.View.Addview android:id="@+id/addview" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"> </com.bwie.car.View.Addview> </LinearLayout> </LinearLayout> </LinearLayout></LinearLayout>
父类布局
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:orientation="vertical" android:layout_height="match_parent"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <CheckBox android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" android:id="@+id/cb_father_car"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="xxx" android:id="@+id/title_father_car"/> </LinearLayout></LinearLayout>
子类bean
public class ChildBean { private String name; private String imgurl; private String pid ; private boolean isflag; private double price; private int num; public ChildBean(String name, String imgurl, String pid, double price, boolean isflag, int num) { this.name = name; this.imgurl = imgurl; this.pid = pid; this.isflag = isflag; this.price = price; this.num=num; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; } public boolean isflag() { return isflag; } public void setIsflag(boolean isflag) { this.isflag = isflag; } public ChildBean(String name, String imgurl, String pid) { this.name = name; this.imgurl = imgurl; this.pid = pid; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getImgurl() { return imgurl; } public void setImgurl(String imgurl) { this.imgurl = imgurl; } public String getPid() { return pid; } public void setPid(String pid) { this.pid = pid; }}购物车逻辑
public class CarFragment extends Fragment implements IView { private View view; public CheckBox all; private Button del; public TextView sum; private ExpandableListView ev; private List<FatherBean> list; private List<List<ChildBean>> lists; private Presenter presenter; private CarAdapter adapter; @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { view = inflater.inflate(R.layout.view_car, container, false); return view; } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); all = (CheckBox) view.findViewById(R.id.cb_all); del = (Button) view.findViewById(R.id.btn_del); sum = (TextView) view.findViewById(R.id.text_sum); ev = (ExpandableListView) view.findViewById(R.id.ev); list=new ArrayList<>(); lists=new ArrayList<>(); //配置适配器 adapter = new CarAdapter(getActivity(),list,lists,this); ev.setAdapter(adapter); //全选按钮点击事件 all.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { for(int i=0;i<list.size();i++){ list.get(i).setIsflag(all.isChecked()); } for(int i=0;i<lists.size();i++){ for(int j=0;j<lists.get(i).size();j++){ lists.get(i).get(j).setIsflag(all.isChecked()); } } int n=0; for (int j=0;j<lists.size();j++){ List<ChildBean> beanList = lists.get(j); for (int k=0;k<beanList.size();k++){ if(beanList.get(k).isflag()){ int num = beanList.get(k).getNum(); double price1 = beanList.get(k).getPrice(); n+=price1*num; } } } sum.setText("总价为:"+n); //刷新适配器 adapter.notifyDataSetChanged(); } }); } //请求网络方法 public void init(){ presenter = new Presenter(this); Map<String,String> map = new HashMap<>(); map.put("source", "android"); map.put("uid","4479"); presenter.get("http://120.27.23.105/",map); } //判断选中状态 public boolean setcheck(){ boolean b=true; for (int i=0;i<list.size();i++){ if (!list.get(i).isflag()){ b=list.get(i).isflag(); break; } List<ChildBean> beanList = lists.get(i); for(int j=0;j<beanList.size();j++){ if (!beanList.get(j).isflag()){ b=beanList.get(j).isflag(); break; } } } return b; } //计算总价的方法 public void mouth(CarFragment f){ float n=0; for (int j=0;j<lists.size();j++){ List<ChildBean> beanList = lists.get(j); for (int k=0;k<beanList.size();k++){ if(beanList.get(k).isflag()){ int num = beanList.get(k).getNum(); double price1 = beanList.get(k).getPrice(); n+=price1*num; } } } f.sum.setText("总价为:"+n); }@Override public void onSuccess(Object o, String Tag) { if(Tag.equals("1")){ list.clear(); lists.clear(); bean a = (bean) o; List<bean.DataBean> beanList = a.getData(); //建立数据源 for(int i=0;i<beanList.size();i++) { String name = beanList.get(i).getSellerName(); list.add(new FatherBean(name,true)); List<bean.DataBean.ListBean> listBeen = beanList.get(i).getList(); List<ChildBean> p=new ArrayList<>(); for (int j = 0; j < listBeen.size(); j++) { double price = listBeen.get(j).getPrice(); String s = listBeen.get(j).getImages(); String[] strings = s.split("!"); String title = listBeen.get(j).getTitle(); int id = listBeen.get(j).getPid(); int num = listBeen.get(j).getNum(); p.add(new ChildBean(title, strings[0], id + "", price, true, num)); } lists.add(p); } //默认展开 for (int s = 0; s < adapter.getGroupCount(); s++) { ev.expandGroup(s); } //刷新适配器 adapter.notifyDataSetChanged(); }else { } } @Override public void onFailed(Exception e) { }删除点击事件
//删除按钮点击事件 delete.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { for(int i=0;i<lists.size();i++){ List<ChildBean> beanList = lists.get(i); for (int j=0;j<beanList.size();j++){ ChildBean bean = beanList.get(j); if (bean.isflag()){ String pid = bean.getPid(); lists.get(i).remove(j); Map<String,String> map1=new HashMap<String, String>(); map1.put("uid",App.sp.getString("userid", "")); map1.put("pid",pid); presenter.get("http://120.27.23.105/product/deleteCart",map1, AddBean.class,"2"); mouth(Frag_shopcar.this); } } if (lists.get(i).size()==0){ lists.remove(i); list.remove(i); } } adapter.notifyDataSetChanged(); } });
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