swift - 节中选定行的索引

Question

我有一个按部分分隔的食品项目，我希望能够按下食品项目并转到食品项目详细信息页面。我的问题是我无法将信息传递给详细信息，因为我没有获得该部分中项目的索引。FoodItem 来自 coredata。

 var allFoodItems = [[FoodItem]]()
 var foodItemTypes = [
FoodItemType.Appetizer.rawValue,
FoodItemType.SoupSalad.rawValue,
FoodItemType.Main.rawValue]

 override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    let foodItem = FoodItem()
    guard let section = foodItemTypes.index(of: foodItem.type!) else { return }

    let row = allFoodItems[section].count

    let selectedIndexPath = IndexPath(row: row, section: section)

    let foodItemDetailController = FoodItemDetailController()
    foodItemDetailController.foodItem = selectedIndexPath
    navigationController?.pushViewController(foodItemDetailController, animated: true)
}

Answer 1

直接发送indexPath即可

 override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    let foodItemDetailController = FoodItemDetailController()

    foodItemDetailController.foodItem = indexPath   // if  IndexPath is the type 

    navigationController?.pushViewController(foodItemDetailController, animated: true)
}

//

或者发送点击的项目

 override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    let all = allFoodItems[indexPath.section]

    let item = all[indexPath.row]

    let foodItemDetailController = FoodItemDetailController()

    foodItemDetailController.foodItem = item // if foodItem is the type

    navigationController?.pushViewController(foodItemDetailController, animated: true)
}