我是用的是介面傳值,所以第一步是介面的建立

public interface NetWorkModelInterface {
    //失敗
    void failure(Exception e);

    //成功
    void success(String result);
}

工具類

public class NetWorkModel {

    //宣告介面
    public static NetWorkModelInterface mNetWorkModelInterface;

    public void setNetWorkModel(NetWorkModelInterface netWorkModelInterface) {
        mNetWorkModelInterface = netWorkModelInterface;
    }

    //宣告類
    private static volatile NetWorkModel mNetWorkModel;

    //私有構造
    private NetWorkModel() {
    }


    //唯一靜態訪問
    public static NetWorkModel getInstance(){

        if(mNetWorkModel == null){

            //上鎖
            synchronized (NetWorkModel.class){
                //例項化物件
                mNetWorkModel = new NetWorkModel();
            }
        }

        return mNetWorkModel;

    }

    public void neeeWooo(String path){
        //建立client
        OkHttpClient client = new OkHttpClient.Builder()
                .readTimeout(10, TimeUnit.SECONDS)
                .connectTimeout(10, TimeUnit.SECONDS)
                .writeTimeout(10, TimeUnit.SECONDS)
                .build();
        //建立request
        Request request = new Request.Builder()
                .url(path)
                .build();

        //建立call
        Call call = client.newCall(request);
        call.enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                //失敗操作
                mNetWorkModelInterface.failure(e);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                //成功
                String string = response.body().string();
                mNetWorkModelInterface.success(string);
            }
        });
    }

}
 

三、呼叫

NetWorkModel instance = NetWorkModel.getInstance();
        instance.neeeWooo(path);
        instance.setNetWorkModel(new NetWorkModelInterface() {
            @Override
            public void failure(Exception e) {
                mNetWorkPrensenterInterface.failure(e);
            }

            @Override
            public void success(String result) {
                mNetWorkPrensenterInterface.success(result);
            }
        });