GsonObjectCallback

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package com.example.myapplication.utils;import android.os.Handler;import com.google.gson.Gson;import java.io.IOException;import java.lang.reflect.ParameterizedType;import java.lang.reflect.Type;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;/** * 1. 类的用途 如果要将得到的json直接转化为集合 建议使用该类 * 该类的onUi() onFailed()方法运行在主线程 * 2. @author forever * 3. @date 2017/9/24 18:47 */public abstract class GsonObjectCallback<T> implements Callback {    private Handler handler = OkHttp3Utils.getInstance().getHandler();    //主线程处理    public abstract void onUi(T t);    //主线程处理    public abstract void onFailed(Call call, IOException e);    //请求失败    @Override    public void onFailure(final Call call, final IOException e) {        handler.post(new Runnable() {            @Override            public void run() {                onFailed(call, e);            }        });    }    //请求json 并直接返回泛型的对象 主线程处理    @Override    public void onResponse(Call call, Response response) throws IOException {        String json = response.body().string();        Class<T> cls = null;        Class clz = this.getClass();        ParameterizedType type = (ParameterizedType) clz.getGenericSuperclass();        Type[] types = type.getActualTypeArguments();        cls = (Class<T>) types[0];        Gson gson = new Gson();        final T t = gson.fromJson(json, cls);        handler.post(new Runnable() {            @Override            public void run() {onUi(t);            }        });    }}
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