import android.content.Context;import android.widget.Toast;import java.io.IOException;import retrofit2.Call;import retrofit2.Callback;import retrofit2.Response;/** * Created by xiaolei on 2017/3/2. */public abstract class ICallBack
    
      implements Callback
     
      {    private Context context;    public ICallBack(Context context)    {        this.context = context;    }    public abstract void onSuccess(T result) throws Exception;    public abstract void onField(Call
      
        call, Throwable t);    public abstract void onFinally();        @Override    public void onResponse(Call
       
         call, Response
        
          response)    {        try        {            if(response.isSuccessful())            {                onSuccess(response.body());            }else            {                onFailure(call,new IOException(response.code()+""));            }        }catch (Exception e)        {            onFailure(call,new IOException(response.code()+""));        }finally        {            onFinally();        }    }    @Override    public void onFailure(Call
         
           call, Throwable t) { try { if(context != null) { Toast.makeText(context, "t:" + t, Toast.LENGTH_SHORT).show(); } onField(call,t); }finally { onFinally(); } }}