Reload Tableview using RxSwift

问题:

I am using RxSwift for tableview. I need to reload my table each time after getting data from api but I'm failed to do this. I couldn't find any solution for that. Can anybody help?

I have an array of places obtain from response of an Api.I have used this code in view did load, but its is not being called when array is updated.

回答1:

I have found the issue. My array was not being getting updated correctly. I did the following changes.

Declare dataSource variable of ModelClass:

let dataSource = Variable<[SearchResult]>([])

Bind it with the table view right now it is empty:

dataSource.asObservable().bindTo(ResultsTable.rx.items(cellIdentifier: "SearchCell")){ row,Searchplace,cell in
    if let C_cell = cell as? SearchTableViewCell{
        C_cell.LocationLabel.text = Searchplace.place
    }
}.addDisposableTo(disposeBag)

Then store my updated array in it that contains the searchPlaces:

dataSource.value = self.array

Now each time when value of dataSource will be changed, table view will be reloaded.

回答2:

Avoid using "Variable" because of this concept will be deprecated from RxSwift but official migration path hasn't been decided yet.

REF: https://github.com/ReactiveX/RxSwift/issues/1501

Hence, recommend using RxCocoa.BehaviorRelay instead.

let dataSource = BehaviorRelay(value: [SearchResultModel]())

Bind to tableView

 self.dataSource.bind(to: self.tableView.rx.items(cellIdentifier: "SearchCell", cellType: SearchCell.self)) { index, model, cell in
      cell.setupCell(model: model)
 }.disposed(by: self.disposeBag)

after fetch data:

let newSearchResultModels: [SearchResultModel] = ..... //your new data
dataSource.accept(newSearchResultModels)

Hope this can help :)

回答3:

Let

array = Variable<[SearchResult]>([])

Whenever you hit your API, put your fetched results in self.array.value and it will automatically gets updated.

 self.array.asObservable().bindTo(ResultsTable.rx.items(cellIdentifier: "SearchCell", cellType:SearchCell.self)) 
   { (row, element, cell) in
        cell.configureCell(element: element)
   }.addDisposableTo(disposeBag)