ObservableCollection 如何添加 ObservableCollection？

Question

我使用 uwp windown 10 制作应用程序 unsplash。但响应有限 = 30。我不明白。非常感谢你

public static ObservableCollection<RootObject> listNewImage = new ObservableCollection<RootObject>();
PublicAuthorization publicAuthorization = new PublicAuthorization();

listNewImage = await publicAuthorization.Authorization();

while (listNewImage.Count > RequestParameters.perpage)
{
    await Task.Delay(10);
    RequestParameters.page += 30;
    RequestParameters.perpage += 30;
    listNewImage = await publicAuthorization.Authorization();
}

public async Task<ObservableCollection<RootObject>> Authorization()
{

    Uri auUri = new Uri(RequestParameters.publicAuUri);

    HttpClient httpClient = new HttpClient();

    string responseJson = await httpClient.GetStringAsync(auUri);

    ObservableCollection<RootObject> listNewImage = JsonConvert.DeserializeObject<ObservableCollection<RootObject>>(responseJson, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore });

    return listNewImage;
}

Answer 1

正如您所提到的，API 根据 per_page 查询参数限制结果的数量。如果你增加这个数字，你会得到更多的结果。然后，如果您想获取单个页面，您只需增加 page 参数即可获取下一页。您的代码当前正在将 30 添加到 page 和 per_page 参数，而不是您需要执行类似的操作。 per_page 应该保持不变，而您只是请求下一页。

RequestParameters.page++;