Presenter

1.新建一个接口

public interface mainback {    void getbean(Object o);
}

2.新建presenter

public class presenter {    private mainback m;    public presenter(mainback m) {        this.m = m;    }    public void  get(String url,Class c){        Map<String,String> map=new HashMap<>();        okhttputils.getInface().get(url, map, new callback() {            @Override            public void onFailure(Exception e) {            }            @Override            public void onResponse(Object o) {                m.getbean(o);            }        },c);    }}

3.使用时需要先实现接口 然后新建presenter  调用方法