在文本框点击pickerview改变文本框输入视图从pickerview到键盘在SWIFT 3.0

Question

应该raise.in选择器视图我又增加了这样

picker.delegate = self 
picker.dataSource = self 
picker.showsSelectionIndicator = true 
let toolBar = UIToolbar() 
toolBar.barStyle = UIBarStyle.default 
toolBar.isTranslucent = true 
toolBar.tintColor = UIColor.black 
    //UIColor(red: 76/255, green: 217/255, blue: 100/255, alpha: 1) 
toolBar.sizeToFit() 

let addbutton = UIBarButtonItem(title: "+Add", style: UIBarButtonItemStyle.plain, target: self, action: #selector(GBEDasboardViewController.addproducts)) 
let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil) 
let cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.plain, target: self, action: #selector(GBEDasboardViewController.addproducts)) 

toolBar.setItems([cancelButton, spaceButton, doneButton], animated: false) 
toolBar.isUserInteractionEnabled = true 

productname.inputView = picker 
productname.inputAccessoryView = toolBar 

上点击Add按钮pickerview工具应该关闭和键盘应提高

 func addproducts(){ 
     self.view.endEditing(true) 
    } 

pickerview正在关闭，但如何提高键盘。

Answer 1

你应该用下面的代码替换你的代码。

let addbutton = UIBarButtonItem(title: "+Add", style: UIBarButtonItemStyle.plain, target: self, action: #selector(GBEDasboardViewController.addProducts)) 
let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil) 
let cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.plain, target: self, action: #selector(GBEDasboardViewController.endEditing)) 

func addProducts(){ 
     self.view.endEditing(true) 
     productname.inputView = nil 
     productname.becomeFirstResponder() 
} 

func endEditing() { 
    self.view.endEditing(true) 

}