我是一个初学者的android开发人员。我想捕捉JSON数组响应，如id，uid等。请帮助我做到这一点。我研究了许多帮助视频从YouTube上，但没有解决方案。我坚持与它。我给所有的文件，我已经创建了这个，也是JSON。
JSON文件

{
  "status": 0,
  "response_data": [
    {
      "id": "12",
      "uid": "USER00000003",
      "reason": "Test",
      "type": "Plan Leave",
      "SataDate": "2018-09-18",
      "EndDate": "2018-09-25",
      "ApprovedBy": "USER00000002",
      "ApprovedDate": "2018-09-18",
      "Status": "REJECTED",
      "Remarks": "Test Reject"
    },
    {
      "id": "13",
      "uid": "USER00000003",
      "reason": "Wedding",
      "type": "Plan Leave",
      "SataDate": "2018-01-28",
      "EndDate": "2018-02-05",
      "ApprovedBy": "USER00000002",
      "ApprovedDate": "2018-09-18",
      "Status": "APPROVED",
      "Remarks": "Ok"
    }
  ]
}

Api接口

public interface ApiInterface {

    @GET("leave_dtls.php")
    Call<ResponseData> getData();
}

Api客户端

public class ApiClient {
    private final static String BASE_URL = "http://api.xxxx.com/app/";
    public static ApiClient apiClient;
    private Retrofit retrofit = null;

    public static ApiClient getInstance() {
        if (apiClient == null) {
            apiClient = new ApiClient();
        }
        return apiClient;
    }

    //private static Retrofit storeRetrofit = null;

    public Retrofit getClient() {
        return getClient(null);
    }

    private Retrofit getClient(final Context context) {

        HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient.Builder client = new OkHttpClient.Builder();
        client.readTimeout(60, TimeUnit.SECONDS);
        client.writeTimeout(60, TimeUnit.SECONDS);
        client.connectTimeout(60, TimeUnit.SECONDS);
        client.addInterceptor(interceptor);
        client.addInterceptor(new Interceptor() {
            @Override
            public okhttp3.Response intercept(Chain chain) throws IOException {
                Request request = chain.request();

                return chain.proceed(request);
            }
        });

        retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .client(client.build())
                .addConverterFactory(GsonConverterFactory.create())
                .build();

        return retrofit;
    }

}

响应数据

public class ResponseData {
    @SerializedName("response_data")
    private List<ResponseDataItem> responseData;

    @SerializedName("status")
    private int status;

    public void setResponseData(List<ResponseDataItem> responseData){
        this.responseData = responseData;
    }

    public List<ResponseDataItem> getResponseData(){
        return responseData;
    }

    public void setStatus(int status){
        this.status = status;
    }

    public int getStatus(){
        return status;
    }
}

响应数据项

public class ResponseDataItem {

    @SerializedName("Status")
    private String status;

    @SerializedName("uid")
    private String uid;

    @SerializedName("reason")
    private String reason;

    @SerializedName("ApprovedDate")
    private String approvedDate;

    @SerializedName("Remarks")
    private String remarks;

    @SerializedName("ApprovedBy")
    private String approvedBy;

    @SerializedName("id")
    private String id;

    @SerializedName("type")
    private String type;

    @SerializedName("EndDate")
    private String endDate;

    @SerializedName("SataDate")
    private String sataDate;

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public String getUid() {
        return uid;
    }

    public void setUid(String uid) {
        this.uid = uid;
    }

    public String getReason() {
        return reason;
    }

    public void setReason(String reason) {
        this.reason = reason;
    }

    public String getApprovedDate() {
        return approvedDate;
    }

    public void setApprovedDate(String approvedDate) {
        this.approvedDate = approvedDate;
    }

    public String getRemarks() {
        return remarks;
    }

    public void setRemarks(String remarks) {
        this.remarks = remarks;
    }

    public String getApprovedBy() {
        return approvedBy;
    }

    public void setApprovedBy(String approvedBy) {
        this.approvedBy = approvedBy;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getEndDate() {
        return endDate;
    }

    public void setEndDate(String endDate) {
        this.endDate = endDate;
    }

    public String getSataDate() {
        return sataDate;
    }

    public void setSataDate(String sataDate) {
        this.sataDate = sataDate;
    }

}

主要活动

public class MainActivity extends AppCompatActivity {

    TextView tvResponse;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tvResponse=findViewById(R.id.tvResponse);

        ApiInterface apiInterface = ApiClient.getInstance().getClient().create(ApiInterface.class);
        Call<ResponseData> responseDataCall=apiInterface.getData();
        responseDataCall.enqueue(new Callback<ResponseData>() {
            @Override
            public void onResponse(Call<ResponseData> call, Response<ResponseData> response) {
                if (response.isSuccessful() && response.body()!=null && response!=null){
                    List<ResponseDataItem> data=response.body().getResponseData();

                }
            }

            @Override
            public void onFailure(Call<ResponseData> call, Throwable t) {
                t.printStackTrace();
            }
        });
    }
}

我想在TEXTVIEW中显示响应。