UIPickerViewDelegate Xcode 8 Swift 3 [英] UIPickerViewDelegate Xcode 8 Swift 3
本文介绍了UIPickerViewDelegate Xcode 8 Swift 3的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我的代码是:
class ViewController: UIViewController,UIPickerViewDelegate, UIPickerViewDataSource {
@IBOutlet weak var picherview: UIPickerView!
var prodotti = ["AAAAA", "VVVV", "CCCC"]
override func viewDidLoad() {
super.viewDidLoad()
self.picherview.dataSource = self
self.picherview.delegate = self
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 1
}
func pickerview( _ : UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return prodotti.count
}
func pickerview( _ : UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! {
return prodotti[row]
} //ci consente di determinare quale riga è stata selezionata
func pickerview(_ : UIPickerView, didSelectRow row: Int, inComponent component: Int) {
print("Hai selezionato: \(prodotti[row])")}
}
此代码有错误:
类型 'ViewController' 不符合协议 'UIPickerViewDataSource'
Type 'ViewController' does not conform to protocol 'UIPickerViewDataSource'
有什么解决办法吗?
推荐答案
PickerView Swift 3
Correct syntax of PickerView Swift 3
// DataSource
func numberOfComponents(in pickerView: UIPickerView) -> Int {
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
}
// Delegate
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
}
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