如何通过改造和活动的android从web api获取JSON数组

时间:2016-08-04 11:18:40

标签: android json retrofit2

我有一个web api,它给了我一系列合作伙伴,它看起来像这样:

[ 
  "partner1",
  "partner2",
  "partner3",
  "....",
  "parner222"
]

我有Table合作伙伴(ActiveAndroid),我希望从api中保存所有合作伙伴。

@Table(name = "Partners")
public class Partners extends Model {

    @Column(name = "Name")
    String name;

    public Partners() {}

    public Partners(String name) {
        this.name = name;
    }
}

这是我的Pojo模型类:

public class Partners {

    @SerializedName("name")
    @Expose
    private List<String> name = new ArrayList<String>();

    public List<String> getName() {
        return name;
    }

    public void setName(List<String> name) {
        this.name = name;
    }

}

这是我的界面

public interface APIService {

        @GET("Partners")
        Call<Partners> getPartners();
}

这是我的api url的APIHelper

public class APIHelper {

    public static APIService apiService;

    public static APIService getApiService() {
        if (apiService == null) {
            Retrofit retrofit = new Retrofit.Builder().baseUrl("https://part-oflink.domain.com/partners.json/")
                    .addConverterFactory(GsonConverterFactory.create()).build();
            apiService = retrofit.create(APIService.class);
        }
        return apiService;
    }
}

这就是Fragment,我有一个Button,我想在其上实现onClick方法,从API获取数据并将其保存到Partners表中。

public class DownloadMain extends Fragment implements Callback<Partners> {

    private Button dloadPartners;
    private Call<Partners> callPartners;
    public static APIService apiService;

    public DownloadMain() {}

    public DownloadMain newInstance() { return new DownloadMain(); }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.download_main, container, false);

        dloadPartners = (Button) view.findViewById(R.id.downloadPartners);
        dloadPartners.setOnClickListener(btnListener);

        callPartners = APIHelper.getApiService().getPartners();
        callPartners.enqueue(this);

        return view;
    }

    Button.OnClickListener btnListener = (new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //here I need to implement that on click downloads me data
            // and save it into my Partners table
        }
    });

    @Override
    public void onResponse(Call<Partners> call, Response<Partners> response) {

        //here I'm trying to put api response into array list
        if (response.body() != null) {
            ArrayList<String> partnersList = new ArrayList<>();
            partnersList = response.body();

        }
    }

    @Override
    public void onFailure(Call<Partners> call, Throwable t) {

    }
}

现在我卡住了。我想实现onClick Button方法从API获取数据。在onResponse()方法中,我试图将数据放入ArrayList以检查数据是否已收到。而且我想将这些数据保存到我的表伙伴中。

如果有人可以帮助我或指导我解决这个问题,我将不胜感激。这是我第一次使用改造和api。

有人可以帮助我或指导我成功从API获取数据并将其保存到表格合作伙伴中吗?

2 个答案:

答案 0 :(得分:1)

您尝试解析JSON字符串(合作伙伴数组)的方式不合适。你的JSON应该是这样的:

{
"partners": 
  ["partner1", "partner2", "partner3", ...]
}

POJO模型类应该是:

class Partners{
    private List<String> partners;

    public Partners(){}

    public void setList(List<String> partners) {
        this.partners = partners;
    }

    public List<String> getList() {
       return this.partners;
    }

    //setter and getter methods
}

答案 1 :(得分:0)

如果响应不为空,则打印值:

for(Partner partner: response){

Log.d("Partner Name",partner.name);

}

如果您正在为数据库使用任何ORM,请调用其DAO并传递值以保存在数据库中。