相关疑难解决方法(0)

所以我正在尝试将Retrofit用于我的项目.由于该网站说,我已经包含 compile 'com.squareup.retrofit:retrofit:2.0.0-beta1'在build.gradle.我正在阅读此链接中的教程.我想做类似这样的事情

final RestAdapter restadapter = new RestAdapter.Builder().setEndpoint("http://services.hanselandpetal.com").build();

        api flowerapi = restadapter.create(api.class);

        flowerapi.getData(new Callback<List<Flower>>() {
            @Override
            public void success(List<Flower> flowers, Response response) {
                flowerList = flowers;
                adapter adapt = new adapter(getApplicationContext(),R.layout.item_file,flowerList);
                //ListView listView = (ListView) findViewById(R.id.list);
                setListAdapter(adapt);
            }

在我的项目中,即调用API.但是,restadapter只是没有得到resolved.简单地说,在它上面盘旋它symbol can't be resolved.这里发生了什么？