MainActivity
public class MainActivity extends AppCompatActivity implements DataCall {
String url = \"http://www.zhaoapi.cn/product/getCarts?uid=71\";
private ListView listView01;
private ListView listView02;
private List<Meau.DataBean> list = new ArrayList<>();
private List<Meau.DataBean.ListBean> list1 = new ArrayList<>();
private MyListViewYiAdapter adapter;
private MyListViewErAdapter adapter1;
private List<Meau.DataBean.ListBean> beans;
private List<Meau.DataBean> data;
private TextView zongjia;
private Meau.DataBean.ListBean listBean;
private RequestPresenter requestPresenter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView01 = findViewById(R.id.listview01);
listView02 = findViewById(R.id.listview02);
zongjia = findViewById(R.id.zongjia);
requestPresenter = new RequestPresenter(this);
requestPresenter.getRequest(url);
adapter = new MyListViewYiAdapter(list, this);
adapter1 = new MyListViewErAdapter(list1, this);
//点击商铺切换商品
listView01.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
List<Meau.DataBean.ListBean> beans1 = data.get(position).getList();
list1.clear();
adapter1.notifyDataSetChanged();
list1.addAll(beans1);
adapter.notifyDataSetChanged();
adapter1.notifyDataSetChanged();
}
});
adapter1.setOnNumListener(new MyListViewErAdapter.OnNumListener() {
@Override
public void onNum() {
calculatePrice(data);
}
});
listView01.setAdapter(adapter);
listView02.setAdapter(adapter1);
}
private void calculatePrice(List<Meau.DataBean> data) {
double totalPrice=0;
int totalNum = 0;
for (int i = 0; i < data.size(); i++) {//循环的商家
Meau.DataBean shop = data.get(i);
for (int j = 0; j < shop.getList().size(); j++) {
Meau.DataBean.ListBean goods = shop.getList().get(j);
//计算价格
totalPrice = totalPrice + goods.getNum() * goods.getPrice();
totalNum+=goods.getNum();//计数
}
}
zongjia.setText(\"价格：\"+totalPrice);
// mCountText.setText(\"\"+totalNum);
}
@Override
public void requestSuccess(Meau meau) {
data = meau.getData();
Log.i(\"abc\", data.toString());
calculatePrice(data);
list.addAll(data);
beans = data.get(1).getList();
list1.addAll(beans);
adapter.notifyDataSetChanged();
adapter1.notifyDataSetChanged();
Toast.makeText(this, \"成功\" + meau.getData(), Toast.LENGTH_LONG).show();
}
@Override
public void requestFail(Meau meau) {
Toast.makeText(this, \"失败\", Toast.LENGTH_LONG).show();
}
@Override
protected void onDestroy() {
super.onDestroy();
requestPresenter.unBindCall();
}
}
Model
public class RequestModel {
public static Meau getData(String url){
String s = Utils.get(url);
// String s = Utils.get(\"http://www.zhaoapi.cn/product/getCarts?uid=71\");
Gson gson = new Gson();
Meau meau = gson.fromJson(s, Meau.class);
return meau;
}
}
presenter
public class RequestPresenter {
private DataCall dataCall;
private Handler handler = new Handler(Looper.getMainLooper()){
@Override
public void handleMessage(Message msg) {
Meau meau = (Meau) msg.obj;
if (meau.getCode() == 0){
dataCall.requestSuccess(meau);
}else {
dataCall.requestFail(meau);
}
}
};
public RequestPresenter(DataCall dataCall) {
this.dataCall = dataCall;
}
public void getRequest(final String url){
new Thread(new Runnable() {
@Override
public void run() {
Meau data = RequestModel.getData(url);
Message message = handler.obtainMessage();
Log.i(\"aaa1\",data.toString());
message.obj = data;
handler.sendMessage(message);
}
}).start();
}
public void unBindCall(){
this.dataCall = null;
}
}
Datacore
public interface DataCall {
void requestSuccess(Meau meau);
void requestFail(Meau meau);
}
MyView
public class MyView extends LinearLayout implements View. Listener {
private TextView mAddBtn,mSubBtn;
private TextView mNumText;
private MyViewListener myViewListener;
public MyView(Context context) {
super(context);
initView();
}
public MyView(Context context,AttributeSet attrs) {
super(context, attrs);
initView();
}
public MyView(Context context,AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initView();
}
private void initView(){
//加载layout布局，第三个参数ViewGroup一定写成this
View view = View.inflate(getContext(),R.layout.car_add_sub_layout,this);
mAddBtn = view.findViewById(R.id.btn_add);
mSubBtn = view.findViewById(R.id.btn_sub);
mNumText = view.findViewById(R.id.text_number);
mAddBtn.set Listener(this);
mSubBtn.set Listener(this);
}
@Override
public void (View v) {
int number = Integer.parseInt(mNumText.getText().toString());
switch (v.getId()){
case R.id.btn_add:
number++;
mNumText.setText(number+\"\");
break;
case R.id.btn_sub:
if (number==0){
Toast.makeText(getContext(),\"数量不能小于0\",Toast.LENGTH_LONG).show();
return;
}
number--;
mNumText.setText(number+\"\");
break;
}
if (myViewListener != null){
myViewListener.myView(number);
}
}
public void setCount(int count){
mNumText.setText(count+\"\");
}
public void setMyViewListener(MyViewListener myViewListener) {
this.myViewListener = myViewListener;
}
public interface MyViewListener{
void myView(int count);
}
}
MyListViewErAdapter
public class MyListViewErAdapter extends Adapter {
private List<Meau.DataBean.ListBean> list = new ArrayList<>();
private Context context;
public MyListViewErAdapter(List<Meau.DataBean.ListBean> list, Context context) {
this.list = list;
this.context = context;
}
@Override
public int getCount() {
return list.size();
}
@Override
public getItem(int position) {
return list.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
MyListViewErAdapter.ViewHolder holder;
if (convertView == null){
convertView = View.inflate(context, R.layout.listview_er_layout, null);
holder = new MyListViewErAdapter.ViewHolder();
holder.text_name = convertView.findViewById(R.id.text_name);
holder.text_price = convertView.findViewById(R.id.text_price);
holder.img_pic = convertView.findViewById(R.id.img_pic);
holder.myView = convertView.findViewById(R.id.myView);
convertView.setTag(holder);
}else {
holder = (MyListViewErAdapter.ViewHolder) convertView.getTag();
}
holder.text_name.setText(list.get(position).get ());
holder.text_price.setText(list.get(position).getPrice()+\"\");
String images = list.get(position).getImages();
String[] split = images.split(\"\\\\|\");
if (split.length > 0) {
Glide.with(context).load(split[0]).into(holder.img_pic);
}
Log.i(\"asdf\",list.get(position).get ());
holder.myView.setCount(list.get(position).getNum());
holder.myView.setMyViewListener(new MyView.MyViewListener() {
@Override
public void myView(int count) {
list.get(position).setNum(count);
onNumListener.onNum();
}
});
return convertView;
}
class ViewHolder{
TextView text_name,text_price;
ImageView img_pic;
MyView myView;
}
private OnNumListener onNumListener;
public void setOnNumListener(OnNumListener onNumListener) {
this.onNumListener = onNumListener;
}
public interface OnNumListener{
void onNum();
}
}
MyListViewYiAdapter
public class MyListViewYiAdapter extends Adapter {
private List<Meau.DataBean> list = new ArrayList<>();
private Context context;
public MyListViewYiAdapter(List<Meau.DataBean> list, Context context) {
this.list = list;
this.context = context;
}
@Override
public int getCount() {
return list.size();
}
@Override
public getItem(int position) {
return list.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null){
convertView = View.inflate(context, R.layout.listview_yi_layout, null);
holder = new ViewHolder();
holder.text_name = convertView.findViewById(R.id.text_name);
convertView.setTag(holder);
}else {
holder = (ViewHolder) convertView.getTag();
}
holder.text_name.setText(list.get(position).getSellerName());
return convertView;
}
class ViewHolder{
TextView text_name;
}
}
依赖
implementation \'com.github.bumptech.glide:glide:3.7.0\' // glide第三方依赖库
implementation \'com.youth.banner:banner:1.4.9\' // 轮播图banner compile
implementation \'com.squareup.okhttp3:okhttp:3.12.0\' // okhttp第三方依赖库
implementation \'com.squareup.okhttp3:okhttp:3.10.0\' // okhttp第三方依赖库
implementation \'com.android.support:recyclerview-v7:28.0.0\' // recyclerview第三方依赖库
/*gson解析*/
implementation \'com.google.code.gson:gson:2.2.4\'
implementation \'cn.bingoogolapple:bga-qrcode-zxing:1.3.4\'
implementation(\'com.jcodecraeer:xrecyclerview:1.5.9\') {
exclude group: \'com.android.support\'
}
布局
main
LinearLayout ns:android=\"http://schemas.android.com/apk/res/android\"
ns:app=\"http://schemas.android.com/apk/res-auto\"
ns:tools=\"http://schemas.android.com/tools\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\"
android:orientation=\"vertical\"
tools:context=\".MainActivity\">
<LinearLayout
android:layout_width=\"match_parent\"
android:layout_height=\"0dp\"
android:layout_weight=\"9\"
android:orientation=\"horizontal\">
<ListView
android:id=\"@+id/listview01\"
android:layout_width=\"200dp\"
android:layout_height=\"match_parent\"
android:background=\"#ccc\" />
<ListView
android:id=\"@+id/listview02\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\" />
</LinearLayout>
<TextView
android:id=\"@+id/zongjia\"
android:layout_width=\"match_parent\"
android:layout_height=\"0dp\"
android:layout_weight=\"1\"
android:text=\"总价:0￥\"
android:gravity=\"center\"
android:textColor=\"#7FFF00\"/>
car_add_sub_layout.
LinearLayout ns:android=\"http://schemas.android.com/apk/res/android\"
ns:app=\"http://schemas.android.com/apk/res-auto\"
ns:tools=\"http://schemas.android.com/tools\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:orientation=\"horizontal\">
<TextView
android:id=\"@+id/btn_add\"
android:layout_width=\"30dp\"
android:layout_height=\"30dp\"
android:focusable=\"false\"
android:textSize=\"20sp\"
android:gravity=\"center\"
android:text=\"+\" />
<TextView
android:id=\"@+id/text_number\"
android:layout_width=\"60dp\"
android:layout_height=\"30dp\"
android:gravity=\"center\"
android:textSize=\"14sp\"
android:text=\"0\" />
<TextView
android:id=\"@+id/btn_sub\"
android:layout_width=\"30dp\"
android:layout_height=\"30dp\"
android:textSize=\"20sp\"
android:focusable=\"false\"
android:gravity=\"center\"
android:text=\"-\" />
listview_er_layout.
RelativeLayout ns:android=\"http://schemas.android.com/apk/res/android\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\"
android:orientation=\"horizontal\"
android:background=\"@drawable/car_itam_bg\">
<ImageView
android:id=\"@+id/img_pic\"
android:layout_width=\"188dp\"
android:layout_height=\"188dp\"
android:src=\"@mipmap/ic_launcher\" />
<TextView
android:id=\"@+id/text_name\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:text=\"商铺名称\"
android:layout_marginLeft=\"189dp\"
android:textColor=\"#0f0\"
android:textSize=\"16sp\" />
<TextView
android:id=\"@+id/text_price\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:text=\"价格\"
android:layout_marginTop=\"100dp\"
android:textColor=\"#f00\"
android:textSize=\"18sp\"
android:layout_marginLeft=\"189dp\"/>
<com.bwie.myelm.core.MyView
android:id=\"@+id/myView\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:layout_marginTop=\"160dp\"
android:layout_marginLeft=\"258dp\"/>
listview_yi_layout.
LinearLayout ns:android=\"http://schemas.android.com/apk/res/android\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\"
android:orientation=\"horizontal\">
<TextView
android:id=\"@+id/text_name\"
android:layout_width=\"match_parent\"
android:layout_height=\"match_parent\"
android:text=\"商铺名称\"
android:gravity=\"center\"
android:textColor=\"#fff\"
android:textSize=\"18sp\"/>
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