注意,我们利用的是MVP,所以一定要分包分类,规范使用
M层
public class MainModel implements IMainModel {
private Handler handler = new Handler(Looper.getMainLooper());
public void getGoods(final OnNetListener<GoosBean> onNetListener) {
HttpUtils.getHttpUtils().doGet(Api.url, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}
@Override
public void onResponse(Call call, Response response) throws IOException {
String string = response.body().string();
final GoosBean goosBean = new Gson().fromJson(string, GoosBean.class);
handler.post(new Runnable() {
@Override
public void run() {
onNetListener.onSuccess(goosBean);
}
});
}
});
}
}
M层的接口
public interface IMainModel {
public void getGoods(OnNetListener<GoosBean> onNetListener);
}
P层
public class ShowPresenter {
public IShowModel iShowModel;
public IMainActivity iMainActivity;
public ShowPresenter(IMainActivity iMainActivity) {
iShowModel = new ShowModel();
this.iMainActivity = iMainActivity;
}
//创建方法
public void getNews(){
iShowModel.getGoods(new OnNetListener<GoosBean>() {
@Override
public void onSuccess(GoosBean goosBean) {
ArrayList<GoosBean.DataBean.DatasBean> datas = new ArrayList<GoosBean.DataBean.DatasBean>();
List<GoosBean.DataBean> data = goosBean.getData();
for (int i = 0; i <data.size() ; i++) {
List<GoosBean.DataBean.DatasBean> datasBeen = data.get(i).getDatas();
datas.addAll(datasBeen);
}
iMainActivity.show(datas);
}
@Override
public void onFailure(Exception e) {
}
});
}
}
V层
public class MainActivity extends AppCompatActivity implements IMainActivity {
private CheckBox mCheckbox2;
/**
* 0
*/
private TextView mTvPrice;
/**
* 结算(0)
*/
private TextView mTvNum;
private ShowPresenter showPresenter;
private RecyclerView mRv;
private MyAdapter myAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
showPresenter = new ShowPresenter(this);
showPresenter.getNews();
mRv.setLayoutManager(new LinearLayoutManager(this));
//注册一下eventbus
EventBus.getDefault().register(this);
//点击全选按钮,改变其他的状态值
mCheckbox2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
myAdapter.allSelect(mCheckbox2.isChecked());
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
EventBus.getDefault().unregister(this);
}
private void initView() {
mCheckbox2 = (CheckBox) findViewById(R.id.checkbox2);
mTvPrice = (TextView) findViewById(R.id.tv_price);
mTvNum = (TextView) findViewById(R.id.tv_num);
mRv = (RecyclerView) findViewById(R.id.rv);
}
@Override
public void show(List<GoosBean.DataBean.DatasBean> list) {
myAdapter = new MyAdapter(list, this);
mRv.setAdapter(myAdapter);
}
@Subscribe
public void MessageEvent(MessageEvent event){
mCheckbox2.setChecked(event.isChecked());
}
@Subscribe
public void MessageEvent(PriceAndCountEvent event){
mTvNum.setText("结算:"+event.getCount());
mTvPrice.setText(event.getPrice()+"");
}
}
V层接口
public interface IMainActivity {
public void show(List<GoosBean.DataBean.DatasBean> list);
}
别忘了net层的东东
API的url
public interface Api {
public static final String url = "http://result.eolinker.com/iYXEPGn4e9c6dafce6e5cdd23287d2bb136ee7e9194d3e9?uri=evaluation";
}
HttpUtils
public class HttpUtils {
private static volatile HttpUtils httpUtils;
private final OkHttpClient client;
private HttpUtils() {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
client = new OkHttpClient.Builder()
.addInterceptor(logging)
.build();
}
public static HttpUtils getHttpUtils() {
if (httpUtils == null) {
synchronized (HttpUtils.class) {
if (httpUtils == null) {
httpUtils = new HttpUtils();
}
}
}
return httpUtils;
}
/**
* GET请求
*
* @param url
* @param callback
*/
public void doGet(String url, Callback callback) {
Request request = new Request.Builder().url(url).build();
client.newCall(request).enqueue(callback);
}
}
接口
public interface OnNetListener<T> {
public void onSuccess(T t);
public void onFailure(Exception e);
}
eventbus文件夹下的东东
public class MessageEvent {
private boolean checked;
public boolean isChecked() {
return checked;
}
public void setChecked(boolean checked) {
this.checked = checked;
}
}
public class PriceAndCountEvent {
private int price;
private int count;
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;
}
}
最最最重要的就是adapter层的东东了
public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>{
private List<GoosBean.DataBean.DatasBean> list;
private Context context;
//创建自己的构造方法
public MyAdapter(List<GoosBean.DataBean.DatasBean> list, Context context) {
this.list = list;
this.context = context;
}
//加载布局
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.child,parent,false);
return new MyViewHolder(view);
}
//绑定数据
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) {
final GoosBean.DataBean.DatasBean datasBean = list.get(position);
final MyViewHolder myViewHolder = (MyViewHolder) holder;
myViewHolder.cbChild.setChecked(datasBean.isChecked());
myViewHolder.tv_tel.setText(datasBean.getType_name());
myViewHolder.tv_content.setText(datasBean.getMsg());
myViewHolder.tv_time.setText(datasBean.getAdd_time());
myViewHolder.tv_price.setText(datasBean.getPrice() + "");
myViewHolder.myView.setNum(datasBean.getNum() + "");
//给checkbox设置点击事件
myViewHolder.cbChild.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//首先改变当前checkbox的状态值
datasBean.setChecked(myViewHolder.cbChild.isChecked());
PriceAndCountEvent compute = compute();
EventBus.getDefault().post(compute);
//如果改变
if(myViewHolder.cbChild.isChecked()){
//查看是否全选
if(isAllCbSelect()){
//改变全选按钮的状态
changeAllCbState(true);
}
}else{
changeAllCbState(false);
}
notifyDataSetChanged();
}
});
//点击增加按钮
myViewHolder.myView.setAddClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//获取数量和价钱
int num = myViewHolder.myView.getNum();
num++;
datasBean.setNum(num);
//如果勾选了,
if(myViewHolder.cbChild.isChecked()){
EventBus.getDefault().post(compute());
}
notifyDataSetChanged();
}
});
//减少按钮的点击
myViewHolder.myView.setDelClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//获取数量和价钱
int num = myViewHolder.myView.getNum();
if(num==1){
return;
}
num--;
datasBean.setNum(num);
//如果勾选了,
if(myViewHolder.cbChild.isChecked()){
EventBus.getDefault().post(compute());
}
notifyDataSetChanged();
}
});
//删除按钮的
myViewHolder.tv_del.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
list.remove(position);
//发送价钱和数量
EventBus.getDefault().post(compute());
//刷新
notifyDataSetChanged();
}
});
}
@Override
public int getItemCount() {
return list.size();
}
//创建自定义viewholder,继承viewholder
class MyViewHolder extends RecyclerView.ViewHolder{
private final CheckBox cbChild;
private final TextView tv_tel;
private final TextView tv_content;
private final TextView tv_time;
private final TextView tv_price;
private MyView myView;
private final TextView tv_del;
public MyViewHolder(View itemView) {
super(itemView);
cbChild = (CheckBox) itemView.findViewById(R.id.cb_child);
tv_tel = (TextView) itemView.findViewById(R.id.tv_tel);
tv_content = (TextView) itemView.findViewById(R.id.tv_content);
tv_time = (TextView) itemView.findViewById(R.id.tv_time);
tv_price = (TextView) itemView.findViewById(R.id.tv_pri);
tv_del = (TextView) itemView.findViewById(R.id.tv_del);
myView = (MyView) itemView.findViewById(R.id.mv);
}
}
//查看checkbox是否全选
public boolean isAllCbSelect(){
for (int i = 0; i <list.size() ; i++) {
GoosBean.DataBean.DatasBean datasBean = list.get(i);
if(!datasBean.isChecked()){
return false;
}
}
return true;
}
//改变全选按钮的状态
public void changeAllCbState(boolean flag){
MessageEvent messageEvent = new MessageEvent();
messageEvent.setChecked(flag);
EventBus.getDefault().post(messageEvent);
}
//创建一个方法传递价钱和数量
public PriceAndCountEvent compute(){
int price = 0;
int count = 0;
for (int i = 0; i <list.size() ; i++) {
GoosBean.DataBean.DatasBean datasBean = list.get(i);
//如果勾选了
if(datasBean.isChecked()){
//进行价钱和数量的++
count += datasBean.getNum();
price += datasBean.getNum()*datasBean.getPrice();
}
}
PriceAndCountEvent priceAndCountEvent = new PriceAndCountEvent();
priceAndCountEvent.setCount(count);
priceAndCountEvent.setPrice(price);
return priceAndCountEvent;
}
//设置全选,反选的方法(点击全选,改变列表的状态值)
public void allSelect(boolean flag){
for (int i = 0; i <list.size() ; i++) {
GoosBean.DataBean.DatasBean datasBean = list.get(i);
datasBean.setChecked(flag);
}
EventBus.getDefault().post(compute());
notifyDataSetChanged();
}
}
还有一个并不是特别重要的bean类
public class GoosBean {
/**
* code : 200
* data : [{"datas":[{"add_time":"2016-12-10 14:54:58","cart_id":"445162","house_id":"1","msg":"购买渠道:大陆国行","price":500,"type_name":"苹果 iPhone 6(白金色)","type_sn_id":"ggh"},{"add_time":"2016-12-10 14:55:18","cart_id":"445163","house_id":"1","msg":"购买渠道:水货无锁","price":1000,"type_name":"苹果
iPhone 7 (亮黑色)","type_sn_id":"tgg"}],"title":"苹果","title_id":"59280"},{"datas":[{"add_time":"2016-12-10 14:54:58","cart_id":"445162","house_id":"1","msg":"边框背板:全新未使用","price":50,"type_name":"小米4s (白金色)","type_sn_id":"ggh"},{"add_time":"2016-12-10 14:55:18","cart_id":"445163","house_id":"1","msg":"屏幕性能:色差/亮点/轻微发黄","price":100,"type_name":"小米5s
(亮黑色)","type_sn_id":"tgg"}],"title":"小米","title_id":"59279"},{"datas":[{"add_time":"2016-12-10 14:54:58","cart_id":"445162","house_id":"1","msg":"边框背板:全新未使用","price":50,"type_name":"三星 (白金色)","type_sn_id":"ggh"},{"add_time":"2016-12-10 14:55:18","cart_id":"445163","house_id":"1","msg":"屏幕性能:色差/亮点/轻微发黄","price":100,"type_name":"三星
(亮黑色)","type_sn_id":"tgg"}],"title":"三星","title_id":"59279"},{"datas":[{"add_time":"2016-12-10 14:54:58","cart_id":"445162","house_id":"1","msg":"边框背板:全新未使用","price":50,"type_name":"华为 (白金色)","type_sn_id":"ggh"},{"add_time":"2016-12-10 14:55:18","cart_id":"445163","house_id":"1","msg":"屏幕性能:色差/亮点/轻微发黄","price":100,"type_name":"华为
(亮黑色)","type_sn_id":"tgg"},{"add_time":"2016-12-10 4:55:28","cart_id":"445164","house_id":"1","msg":"屏幕性能:色差/亮点/轻微发黄","price":150,"type_name":"华为 (纯黑色)","type_sn_id":"hgg"}],"title":"华为","title_id":"59279"}]
* flag : Success
* msg : 描述
*/
private String code;
private String flag;
private String msg;
private List<DataBean> data;
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getFlag() {
return flag;
}
public void setFlag(String flag) {
this.flag = flag;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public List<DataBean> getData() {
return data;
}
public void setData(List<DataBean> data) {
this.data = data;
}
public static class DataBean {
/**
* datas : [{"add_time":"2016-12-10 14:54:58","cart_id":"445162","house_id":"1","msg":"购买渠道:大陆国行","price":500,"type_name":"苹果 iPhone 6(白金色)","type_sn_id":"ggh"},{"add_time":"2016-12-10 14:55:18","cart_id":"445163","house_id":"1","msg":"购买渠道:水货无锁","price":1000,"type_name":"苹果
iPhone 7 (亮黑色)","type_sn_id":"tgg"}]
* title : 苹果
* title_id : 59280
*/
private boolean checked;
private String title;
private String title_id;
private List<DatasBean> datas;
public boolean isChecked() {
return checked;
}
public void setChecked(boolean checked) {
this.checked = checked;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getTitle_id() {
return title_id;
}
public void setTitle_id(String title_id) {
this.title_id = title_id;
}
public List<DatasBean> getDatas() {
return datas;
}
public void setDatas(List<DatasBean> datas) {
this.datas = datas;
}
public static class DatasBean {
/**
* add_time : 2016-12-10 14:54:58
* cart_id : 445162
* house_id : 1
* msg : 购买渠道:大陆国行
* price : 500
* type_name : 苹果 iPhone 6(白金色)
* type_sn_id : ggh
*/
private boolean checked;
private int num = 1;
private String add_time;
private String cart_id;
private String house_id;
private String msg;
private int price;
private String type_name;
private String type_sn_id;
public int getNum() {
return num;
}
public void setNum(int num) {
this.num = num;
}
public boolean isChecked() {
return checked;
}
public void setChecked(boolean checked) {
this.checked = checked;
}
public String getAdd_time() {
return add_time;
}
public void setAdd_time(String add_time) {
this.add_time = add_time;
}
public String getCart_id() {
return cart_id;
}
public void setCart_id(String cart_id) {
this.cart_id = cart_id;
}
public String getHouse_id() {
return house_id;
}
public void setHouse_id(String house_id) {
this.house_id = house_id;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public String getType_name() {
return type_name;
}
public void setType_name(String type_name) {
this.type_name = type_name;
}
public String getType_sn_id() {
return type_sn_id;
}
public void setType_sn_id(String type_sn_id) {
this.type_sn_id = type_sn_id;
}
}
}
}