package com.runt.open.mvvm.base.model;
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import androidx.lifecycle.MutableLiveData;
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import com.google.gson.Gson;
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import com.runt.open.mvvm.data.HttpApiResult;
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import com.runt.open.mvvm.data.PageResult;
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import com.runt.open.mvvm.retrofit.observable.HttpObserver;
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import org.json.JSONObject;
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import java.lang.reflect.ParameterizedType;
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import java.util.ArrayList;
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import java.util.Map;
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/**
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* 分页
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* Created by Administrator on 2021/11/3 0003.
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*/
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public abstract class LoadPageViewModel<D> extends BaseViewModel {
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public final int SIZE = 10;
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private MutableLiveData<ArrayList<D>> liveData = new MutableLiveData<>();
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private MutableLiveData liveFailed = new MutableLiveData();
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/**
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* 请求地址
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* @return
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*/
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protected abstract String requestUrl();
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/**
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* 数据请求
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* @param page 页数
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* @param param 请求参数
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*/
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public void requestData(int page, Map param){
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final ParameterizedType type = (ParameterizedType) this.getClass().getGenericSuperclass();
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Class<D> entityClass = (Class<D>) type.getActualTypeArguments()[0];
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httpObserverOn( commonApi.getPageData(requestUrl(), page, SIZE, param), new HttpObserver<PageResult>() {
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@Override
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protected void onSuccess(PageResult data) {
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//数据转换
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ArrayList<D> list = new ArrayList<>();
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for(Object map : data.rows){
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list.add(new Gson().fromJson(new JSONObject((Map) map).toString(),entityClass));
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}
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liveData.postValue(list);
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}
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@Override
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protected void onFailed(HttpApiResult httpResult) {
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mActivity.showToast(httpResult.msg);
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liveFailed.postValue(1);
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}
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});
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}
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public MutableLiveData<ArrayList<D>> getLiveData(){
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return liveData;
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}
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public MutableLiveData getLiveFailed() {
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return liveFailed;
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}
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}
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