添加特定數據用於UITableView的每個部分 - SWIFT

Question

我有與來自字典陣列編譯的數據的表圖，其中鍵是節頭：

var data: Dictionary<String,[String]> = [ 
    "Breakfast": ["Oatmeal","Orange Juice"], 
    "lunch": ["Steak","Mashed Potatoes","Mixed Veg"], 
    "Dinner": ["Chicken","Rice"], 
    "Snack": ["Nuts","Apple"] 

] 
var breakfastCalories = [100,200,300] 
var lunchCalories = [300,400,500] 
var DinnerCalories = [600,700,800] 
var breakfast = 0 

下面是用於填充表視圖

代碼

override func viewDidLoad() { 
    super.viewDidLoad() 

    for value in breakfastCalories as NSArray as! [Int]{ 

    breakfast = breakfast + value 

    } 

} 


func numberOfSectionsInTableView(tableView: UITableView) -> Int { 

    return data.count 
} 

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
    // Return the number of rows in the section. 
    let sectionString = Array(data.keys)[section] 

    return data[sectionString]!.count 
} 

func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? { 
    let sectionString = Array(data.keys)[section] 
    return sectionString 
} 


func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 

    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! TableViewCell 
    let sectionString = Array(data.keys)[indexPath.section] 


    cell.caloriesLabel.tag = indexPath.row 
    cell.caloriesLabel.text = String(breakfastCalories[indexPath.row]) 
    cell.foodLabel.tag = indexPath.row 
    cell.foodLabel.text = data[sectionString]![indexPath.row] 

    return cell 
} 

func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? { 

let footerView = UIView(frame: CGRectMake(0, 0, tableView.frame.size.width, 40)) 
// self.myTableView.tableFooterView = footerView; 


    let label = UILabel(frame: CGRectMake(footerView.frame.origin.x - 15, footerView.frame.origin.y, footerView.frame.size.width, 20)) 
    label.textAlignment = NSTextAlignment.Right 

    label.text = "Total Calories: \(breakfast) " 

    footerView.addSubview(label) 

    return footerView 
} 

func tableView(tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat { 

    return 20.0 
} 

我的問題是，我怎麼能爲每個部分添加卡路里數組？所以吃早餐時，它將包含從breakfastCalories陣列，午餐節的lunchCalories陣列的卡路里等

我可能這得太多，但我不能讓我的頭圍繞這個問題

感謝

在值從breakfastCalories抓起然而，由於提到的每個部分的權利包含來自breakfastCalories陣列，午餐節的lunchCalories陣列的卡路里等

Answer 1

你可以組織你的calories類似於您data財產，具有相似的鍵：

var calories: Dictionary<String,[Int]> = [ 
"Breakfast": [100,200,300], 
"lunch": [300,400,500], 
"Dinner": [600,700,800] 
] 

這樣，你可以拉出取決於您所展示並把它們加起來共創造了你的標籤，以顯示哪個部門的權利熱量：（添加這其中，您創建footerView和剛好高於您設置label.text）

let dataKeysArray = Array(data.keys)[section] 
let sectionString = dataKeysArray[section] 
let mealCalories = calories[sectionString] 

var totalCalories: Int = 0 
for calories in mealCalories { 
    totalCalories += calories 
} 

label.text = "Total Calories: \(totalCalories) "