Question

我正在制作一本食谱应用程序，我认为我已经掌握了最后一点运行的知识，而且我遇到了麻烦。我试图让我的成分数组显示在文本字段上，我无法让它工作。我做了一些研究，我尝试了一些不同的东西，所有这些都会产生不同的错误。我把它们留在了代码中，但是对它们进行了评论，所以也许看到它的人可能会看到我做错了什么。我的代码看起来如下，我的视图控制器将显示成分。

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var ingredients: UITextView!

@IBOutlet weak var directions: UITextView!


var recipe : Recipe!

// var ingredientText = String()

// let separator = (" / ")


override func viewDidLoad() {
    super.viewDidLoad()


    self.title = recipe.name

    directions.text = recipe.directions


 //       let ingredientsText = separator.join(recipe.ingredients)

   //     label.text = ingredientsText




  //  for ingredient: String in recipe.ingredients {

  //     ingredientsText.join("%@\n", ingredient)

 //  }




//    label.text = ingredientText

//   label.text = recipe.ingredients





//    var multiLineString = join("\n", recipe.ingredients)
//    label.text = multiLineString





}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


}

这是表VC

import UIKit

class tableVC: UITableViewController {

var recipes: [Recipe] = []

override func viewDidLoad() {
    super.viewDidLoad()

    self.title = "Juicing Recipes"

    let recipe0: Recipe = Recipe()
    recipe0.name = "Number 1"
    recipe0.ingredients = ["Pasta","Pasta Sauce","Hamburger"]
    recipe0.directions = "Cook pasta to directions on box, brown hamburger, add sauce to hamburger, dump on pasta"
    recipes.append(recipe0)

    let recipe1: Recipe = Recipe()
    recipe1.name = "Number 2"
    recipe1.ingredients = ["all kinds of stuff","Then a dash of salt"]
    recipe1.directions = "enjoy"
    recipes.append(recipe1)


}

override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return recipes.count
}

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

    let cell = self.tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell

    let recipe: Recipe = recipes[indexPath.row] 

    cell.textLabel?.text = recipe.name

    return cell
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

    let indexPath : NSIndexPath = self.tableView.indexPathForSelectedRow!

    let destCon : ViewController = segue.destinationViewController as! ViewController

    destCon.recipe = recipes[indexPath.row] 



}
}

然后是食谱类

class  Recipe: NSObject {
var name = String()
var ingredients = [String]()
var directions = String()
}

这是另一个我知道的事情我觉得很简单，但是我已经被困了一段时间了。

Swift在textview或标签上显示整个数组

0 个答案: