我有一些从服务器获取消息的现有代码。服务器在Django中并返回分页数据。因此，进入服务器的第一个调用将获取10个最新结果，下一个调用应该会带来更多结果，等等......
然而，问题是只有第一个请求被发送到服务器。因此它只加载10个最新结果，而不是其他任何内容。我想修改代码，以便应用程序能够获取所有结果。
JSON响应
请求：http://192.168.0.127:8000/v1/topic/1/message/
{
"count": 12,
"next": "http://192.168.0.127:8000/v1/topic/1/message/?page=2",
"previous": null,
"results": [
{
"id": 12,
"topic": 1,
"photo_url": "",
"message": "Test12",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:50:42.335694Z"
},
{
"id": 11,
"topic": 1,
"photo_url": "",
"message": "Test11",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:50:13.931648Z"
},
{
"id": 10,
"topic": 1,
"photo_url": "",
"message": "Test10",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:50:07.819994Z"
},
{
"id": 9,
"topic": 1,
"photo_url": "",
"message": "Test9",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:49:59.896686Z"
},
{
"id": 8,
"topic": 1,
"photo_url": "",
"message": "Test8",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:47.268219Z"
},
{
"id": 7,
"topic": 1,
"photo_url": "",
"message": "Test7",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:36.587173Z"
},
{
"id": 6,
"topic": 1,
"photo_url": "",
"message": "Test6",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:29.111922Z"
},
{
"id": 5,
"topic": 1,
"photo_url": "",
"message": "Test5",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:22.983123Z"
},
{
"id": 4,
"topic": 1,
"photo_url": "",
"message": "Test4",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:12.986871Z"
},
{
"id": 3,
"topic": 1,
"photo_url": "",
"message": "Test3",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:48:05.376769Z"
}
]
}
请求：http://192.168.0.127:8000/v1/topic/1/message/?page=2
{
"count": 12,
"next": null,
"previous": "http://192.168.0.127:8000/v1/topic/1/message/",
"results": [
{
"id": 2,
"topic": 1,
"photo_url": "",
"message": "Test2",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:47:59.367765Z"
},
{
"id": 1,
"topic": 1,
"photo_url": "",
"message": "Test1",
"user": {
"id": 2,
"first_name": "John",
"photo": "https://graph.facebook.com/437334666655912/picture/?type=large",
"last_seen_event": null,
"blocked": false
},
"created_on": "2017-05-22T07:47:49.372195Z"
}
]
}
代码
fileprivate lazy var _getMessagesAction: Action<EnumerableType, EnumerableType> = Action { (last: EnumerableType?) -> Observable<EnumerableType> in
self.isNewRequest = last?.next == nil ? true : false
return self.messagesRequest(last)
}
last变量现在总是为零。
typealias EnumerableType = Enumerable<Message>
以下是可枚举类
public struct Enumerable<EnumerableType: ResponseCollectionModelSerializable> : ResponseModelSerializable {
let count: Int
let prev: String?
let next: String?
let results: [EnumerableType]?
public init?(response: HTTPURLResponse, json: JSON) {
guard let countOBj = json["count"] else {
return nil
}
self.count = countOBj as! Int
self.prev = json["previous"] as? String
self.next = json["next"] as? String
if let results = json["results"] as? AnyObject {
self.results = EnumerableType.collection(response: response, json: JSON(results))
} else {
self.results = nil
}
}
}
答案 0 :(得分：0)
嗯......我不觉得你发布的内容足以为你的情况创建一个具体的例子，但是有一些示例代码可以用来做这类事情。
在RxSwift GitHub仓库中，有几个例子，包括GitHubSearchRepositories，它们在页面中加载数据。
我还写了这个要点：https://gist.github.com/dtartaglia/10bc5eb821c752ad45f281c6f4e3034b，其中包括测试和详细信息视图控制器的视图模型，其中包含用于显示活动指示符的Observable。