我的主要问题是我没有让我输入的文本进入标签或我制作的表格(有点偏差，但想稍微自定义一下)。我没有收到任何错误，但有人可以看一下这段代码，看看其中是否有任何我可能忽略的重大错误？ 编辑:我不断返回并更改类型等小东西，但没有任何效果。这是我的全部代码，以防它对每个人都更有意义
import UIKit
class ViewController: UIViewController, UITextFieldDelegate, UITableViewDelegate {
var weatherList = [String] ()
@IBOutlet weak var textField: UITextField!
@IBOutlet weak var textLabel: UILabel!
@IBAction func searchButton(sender: AnyObject) {
weatherList.append(textField.text!)
textField.text = ""
NSUserDefaults.standardUserDefaults().setObject(weatherList, forKey: "weatherList")
}
@IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
if NSUserDefaults.standardUserDefaults().objectForKey("weatherList") != nil {
weatherList = NSUserDefaults.standardUserDefaults().objectForKey("weatherList") as! [String]
}
self.textField.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return weatherList.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "Cell")
cell.textLabel?.text = weatherList[indexPath.row] as String
return cell
}
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == UITableViewCellEditingStyle.Delete {
weatherList.removeAtIndex(indexPath.row)
NSUserDefaults.standardUserDefaults().setObject(weatherList, forKey: "weatherList")
tableView.reloadData()
}
}
override func viewDidAppear(animated: Bool) {
tableView.reloadData()
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
performAction()
return true
}
func performAction() {
weatherList.append(textField.text!)
textField.text = ""
NSUserDefaults.standardUserDefaults().setObject(weatherList, forKey: "weatherList")
}
}
最佳答案
来自NSUserDefaults class reference :
The NSUserDefaults class provides convenience methods for accessing common types such as floats, doubles, integers, Booleans, and URLs. A default object must be a property list, that is, an instance of (or for collections a combination of instances of): NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary. If you want to store any other type of object, you should typically archive it to create an instance of NSData.
那不是 swift 数组。使用 NSMutableArray 代替:
var weatherList:NSMutableArray = NSMutableArray()
然后
self.weatherList.addObject(textField.text)
关于ios - 将文本字段输入表格时出现问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33748445/