我有两个数据源模型。我在 mvvm 中进行。
我的数据源模型如下。
class QuestionDataSourceModel: NSObject {
var dataListArray:Array<QuestionListModel>? = []
var list:Array<OptionsModel>? = []
init(array :Array<[String:Any]>?) {
super.init()
var newArray:Array<[String:Any]> = []
if array == nil{
// newArray = self.getJsonDataStored22()
}
else{
newArray = array!
}
var datalist:Array<QuestionListModel> = []
for dict in newArray{
let model = QuestionListModel(dictionary: dict)
datalist.append(model)
}
self.dataListArray = datalist
print(self.dataListArray)
}
}
以上是第一个数据源模型。
下一个数据源模型如下。
class DummyDataSourceModel: NSObject {
var dataListArray:Array<DummyDataModel>? = []
var list:Array<DummyDataModel>? = []
init(array :Array<[String:Any]>?) {
super.init()
var newArray:Array<[String:Any]> = []
if array == nil{
// newArray = self.getJsonDataStored22()
}
else{
newArray = array!
}
var datalist:Array<DummyDataModel> = []
for dict in newArray{
let model = DummyDataModel(dictionary: dict)
datalist.append(model)
}
self.dataListArray = datalist
print(self.dataListArray)
}
}
在我的 View Controller 中:-
questionViewModel.loadData { (isSuccess) in
if(isSuccess == true)
{
let sec = self.questionViewModel.numberOfSections()
for _ in 0..<sec
{
self.questionViewModel.answers1.add("")
self.questionViewModel.questions1.add("")
self.questionViewModel.questionlist1.add("")
}
//questionViewModel.numberOfSections()
self.activityindicator.stopAnimating()
self.activityindicator.isHidden = true
self.tableview.refreshControl = refreshControl
self.tableview .allowsMultipleSelection = false
self.tableview.reloadData()
// self.questionViewModel.loadData2{ (isSuccess) in
self.dummyDataViewModel.loadData1{ (isSuccess) in
if(isSuccess == true)
{
print(self.questionViewModel.datasourceModel.dataListArray?.count)
self.questionViewModel.totaldata()
self.tableview2.allowsMultipleSelection = false
self.tableview2.reloadData()
}
else{
self.viewDidLoad()
}
}
}
else{
self.activityindicator.stopAnimating()
self.activityindicator.isHidden = true
let controller = UIAlertController(title: "No Internet Detected", message: "This app requires an Internet connection", preferredStyle: .alert)
// Create the actions
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default) {
UIAlertAction in
NSLog("OK Pressed")
self.viewDidLoad()
}
controller.addAction(okAction)
self.present(controller, animated: true, completion: nil)
}
}
我的问题 View 模型:-
func loadFromWebserviceData(completion :@escaping (QuestionDataSourceModel?) -> ()){
Alamofire.request("http://www.example.com").validate(statusCode: 200..<300).validate(contentType: ["application/json"]).responseJSON{ response in
let status = response.response?.statusCode
print("STATUS \(status)")
print(response)
switch response.result{
case .success(let data):
print("success",data)
let result = response.result
print(result)
if let wholedata = result.value as? [String:Any]{
print(wholedata)
if let data = wholedata["data"] as? Array<[String:Any]>{
print(data)
print(response)
for question in data {
let typebutton = question["button_type"] as? String
print(typebutton)
self.type = typebutton
let options = question["options"] as! [String]
// self.dataListArray1 = [options]
self.tableArray.append(options)
// self.savedataforoptions(completion: <#T##(NH_OptionslistDataSourceModel?) -> ()#>)
self.no = options.count
}
print(self.tableArray)
let newDataSource:QuestionDataSourceModel = QuestionDataSourceModel(array: data)
completion(newDataSource)
}
}
case .failure(let encodingError ):
print(encodingError)
// if response.response?.statusCode == 404{
print(encodingError.localizedDescription)
completion(nil)
}
}}
func loadData(completion :@escaping (_ isSucess:Bool) -> ()){
loadFromWebserviceData { (newDataSourceModel) in
if(newDataSourceModel != nil)
{
self.datasourceModel = newDataSourceModel!
completion(true)
}
else{
completion(false)
}
}
}
我的 dummyViewModel 如下:-
func loadFromDummyData(completion :@escaping (DummyDataSourceModel?) -> ()){
if let path = Bundle.main.path(forResource: "jsonData", ofType: "json") {
do {
let jsonData = try NSData(contentsOfFile: path, options: NSData.ReadingOptions.mappedIfSafe)
do {
let jsonResult: NSDictionary = try JSONSerialization.jsonObject(with: jsonData as Data, options: JSONSerialization.ReadingOptions.mutableContainers) as! NSDictionary
if let people = jsonResult["data"] as? Array<[String:Any]> {
// self.dict = people
for person in people {
let options = person["options"] as! [String]
self.tableArray.append(options)
let name = person ["question"] as! String
self.tableArray.append(options)
}
let newDataSource:DummyDataSourceModel = DummyDataSourceModel(array: people)
completion(newDataSource)
}
} catch {}
} catch {}
}
}
func loadData1(completion :@escaping (_ isSucess:Bool) -> ()){
loadFromDummyData{ (newDataSourceModel) in
if(newDataSourceModel != nil)
{
self.datasourceModel = newDataSourceModel!
completion(true)
}
else{
completion(false)
}
}
}
现在我需要合并这两个数据源模型。
我正在使用tableview来显示数据。
所以首先我需要显示来自 JSON 的数据。然后下面我需要显示来自 json.file 的数据。那么如何合并这两个数据源模型。
首先，来自 JSON 的数据有 10 个部分。 在json.file中它有3个部分。总共13个部分。所以我需要在表格 View 中一起显示13个部分。怎么做？
这是 json.file 数据:-
{
"data":[
{
"question": "Gender",
"options": ["Male","Female"],
"button_type":"2"
},
{
"question": "How old are you",
"options": ["Under 18","Age 18 to 24","Age 25 to 40","Age 41 to 60","Above 60"],
"button_type":"2"
},
{
"button_type":"2",
"question": "I am filling the Questionnaire for?",
"options": ["Myself","Mychild","Partner","Others"]
}
]
}
与 api 中的 JSON 格式相同。
{
"data":[
{
"question": "Gender",
"options": ["Male","Female"],
"button_type":"2"
},
{
"question": "How old are you",
"options": ["Under 18","Age 18 to 24","Age 25 to 40","Age 41 to 60","Above 60"],
"button_type":"2"
},
{
"button_type":"2",
"question": "I am filling the Questionnaire for?",
"options": ["Myself","Mychild","Partner","Others"]
}
]
}
最佳答案
class OptionsModel: NSObject {
var options: [String]?
var question: String?
var button_type: String?
}
class OptionsViewModel: NSObject {
var optionList: Array<OptionsModel>?
func callApi() {
yourApiCall() { webResponseArray in
for res in webResponseArray {
let model = OptionsModel(json: res)
if optionList == nil {
optionList = [OptionsModel]()//Initialize Array if not initialized
}
optionList.append(model)// You are appending Option getting from web Api Response
}
//After Completely fetching all models from webResponseArray you should load Data from Local JSON
loadLocalJSON()//After loading Data from Web You are loading Data from local JSON.
}
}
func loadLocalJSON() {
let localJsonArray = someMethodToLoadJsonFromLocalFileAndReturnsJSON()
for json in localJsonArray {
let model = OptionsModel(json: json)
if optionList == nil {
optionList = [OptionsModel]()//Initialize Array if not initialized
}
optionList.append(model)// You are appending Option getting from Local JSON
}
//Now you have a single Array containing all local and remote option models.
}
}
关于ios - 如何在 swift 中使用 mvvm 合并两个数据源模型，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52847595/