我的主要问题是我没有收到我输入的文字进入我做的标签或表格(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,看看是否有任何重大错误,我可能会忽略它? 编辑:我会继续回去改变类似的小东西,但没有任何效果。这是我的整个代码,以防每个人都更有意义
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")
}
}
答案 0 :(得分:1)
来自NSUserDefaults class reference:
NSUserDefaults类提供了便于访问的方法 常见类型,例如浮点数,双精度数,整数,布尔值和URL。一个 默认对象必须是属性列表,即(或 对于集合的实例组合):NSData,NSString, NSNumber,NSDate,NSArray或NSDictionary。如果你想存储任何 在其他类型的对象中,通常应将其存档以创建 NSData的实例。
这不是快速的数组。请改用NSMutableArray:
var weatherList:NSMutableArray = NSMutableArray()
然后
self.weatherList.addObject(textField.text)