Swift：以编程方式创建具有某些特定字体和大小的UIButton

3 回答

• 0

  如果您想以编程方式执行此操作，可以按以下方式思考：

  在viewDidLoad（）中的for ...循环中创建按钮（或其他地方，具体取决于您的要求）：

  let buttonWidth : CGFloat = self.view.frame.width / 10
      let buttonHeight : CGFloat = 50
  
      for count in 0..<10 {
          let newButton = UIButton(frame: CGRect(origin: CGPoint(x: CGFloat(count) * buttonWidth, y: 50), size: CGSize(width: buttonWidth, height: buttonHeight)))
          newButton.backgroundColor = UIColor.red
          newButton.setTitle("Button #\(count)", for: UIControlState.normal)
          newButton.setTitleColor(UIColor.white, for: UIControlState.normal)
          newButton.addTarget(self, action: #selector(self.buttonTapped(sender:)), for: UIControlEvents.touchUpInside)
          newButton.titleLabel?.font = UIFont(name: "Arial", size: 10)
          newButton.tag = count
          self.view.addSubview(newButton)
      }
  

  然后你可以按如下方式实现选择器buttonTapped（sender：UIButton），检索按钮的标签，这样你就可以定制动作（例如通过switch语句）：

  func buttonTapped(sender: UIButton) -> Void {
      print("\(sender.tag) was tapped!")
  
      // Do something more interesting based on the tag here...
  }
  

  这允许您设置许多按钮操作，而无需很多不同的选择器 . 希望有所帮助 .

  回复于 2024-04-28T15:03:39+08:00
• 1

  创建 uibuttons 并在主视图中添加它们，请参见下面的示例 .

  class yourClassName: UIViewController {
  
      override func viewDidLoad() {
          super.viewDidLoad()
  
          // here method CGRectMake defines x, y, width, height
          var btnOne = UIButton(frame: CGRectMake(0, 0, 50, 50))
          var btnOne = UIButton(frame: CGRectMake(0, 0, 50, 50))
  
          self.view.addSubview(btnOne) // add button inside view 
          self.view.addSubview(btnOne) // add button inside view 
  
          // using selector you must specify a method for each button
          btnOne.addTarget(self, action: #selector(self.actionOne), forControlEvents: .TouchUpInside)
  
          btnTwo.addTarget(self, action: #selector(self.actionTwo), forControlEvents: .TouchUpInside)
  }
  

  ---

  Actions methods:

  func actionOne(sender : UIButton) {
      print("button one tapped")
  }
  
  func actionTwo(sender : UIButton) {
      print("button second tapped")
  }
  

  回复于 2024-04-28T15:03:39+08:00
• 1

  let bacViewOne=UIButton(frame: CGRectMake(20, 60 , 130, 130))
              bacViewOne.backgroundColor=UIColor.whiteColor()
              bacViewOne.layer.cornerRadius=5.0
              btn1 = UIButton(type: UIButtonType.Custom) as UIButton
              btn1.setImage(UIImage(named: "new.png"), forState: UIControlState.Normal)
              btn1.frame = CGRectMake((bacViewOne.frame.size.width-90)/2, 5 , 90, 90)
              //btn1.backgroundColor = UIColor.whiteColor()
              btn1.tag = 1
              btn1.addTarget(self, action: #selector(ViewController.dashboard(_:)), forControlEvents: UIControlEvents.TouchUpInside)
              bacViewOne.addSubview(btn1)
              self.view.addSubview(bacViewOne)
  
              let l1 = UILabel(frame: CGRectMake((bacViewOne.frame.size.width-90)/2, 100, 90, 21))
  
              l1.textAlignment = NSTextAlignment.Center
              l1.textColor = UIColor(red: 41/255.0, green: 43/255.0, blue: 64/255.0, alpha: 1)
              l1.text = "Dashboard"
              //l1.font = UIFont (name: "BakerSignetBT-Roman", size: 15)
              bacViewOne.addSubview(l1)
              l1.font = UIFont.systemFontOfSize(11)
  
  
  
              var bacViewT=UIButton(type: UIButtonType.Custom) as UIButton
              bacViewT .frame = CGRectMake(20, 240, 130, 130)
              bacViewT.backgroundColor=UIColor.whiteColor()
              bacViewT.layer.cornerRadius=5.0
              btn3 = UIButton(type: UIButtonType.Custom) as UIButton
              btn3.setImage(UIImage(named: "Usernew.png"), forState: UIControlState.Normal)
              btn3.frame = CGRectMake((bacViewT.frame.size.width-90)/2, 5, 90, 90)
  //            btn3.backgroundColor = UIColor(red: 41/255.0, green: 43/255.0, blue: 64/255.0, alpha: 1)
              btn3.tag = 2
              btn3.addTarget(self, action: #selector(ViewController.userExpenses(_:)), forControlEvents: UIControlEvents.TouchUpInside)
              bacViewT.addSubview(btn3)
  
              self.view.addSubview(bacViewT)
  
              let l2 = UILabel(frame: CGRectMake((bacViewT.frame.size.width-100)/2, 100, 100, 21))
  
              l2.textAlignment = NSTextAlignment.Center
              l2.textColor = UIColor(red: 41/255.0, green: 43/255.0, blue: 64/255.0, alpha: 1)
              l2.text = "User Expense"
              //l2.font = UIFont (name: "BakerSignetBT-Roman", size: 15)
              bacViewT.addSubview(l2)
              l2.font = UIFont.systemFontOfSize(11)
              //7
  
  
              let bacViewTh=UIButton(frame: CGRectMake(170, 60, 130, 130))
              bacViewTh.backgroundColor=UIColor.whiteColor()
              bacViewTh.layer.cornerRadius=5.0
              btn7 = UIButton(type: UIButtonType.Custom) as UIButton
              btn7.setImage(UIImage(named: "events.png"), forState: UIControlState.Normal)
              btn7.frame = CGRectMake((bacViewTh.frame.size.width-90)/2, 5, 90, 90)
              btn7.tag = 3
              btn7.addTarget(self, action: #selector(ViewController.upcomingEvents(_:)), forControlEvents: UIControlEvents.TouchUpInside)
              bacViewTh.addSubview(btn7)
  
  
              let l3 = UILabel(frame: CGRectMake((bacViewTh.frame.size.width-100)/2, 100, 100, 21))
  
              l3.textAlignment = NSTextAlignment.Center
              l3.textColor = UIColor(red: 41/255.0, green: 43/255.0, blue: 64/255.0, alpha: 1)
              l3.text = "Upcoming Events"
              //l3.font = UIFont (name: "BakerSignetBT-Roman", size: 15)
              bacViewTh.addSubview(l3)
              l3.font = UIFont.systemFontOfSize(11)
              self.view.addSubview(bacViewTh)
              //8
  
              let bacViewF=UIButton(frame: CGRectMake(170, 240, 130, 130))
              bacViewF.backgroundColor=UIColor.whiteColor()
              bacViewF.layer.cornerRadius=5.0
              btn9 = UIButton(type: UIButtonType.Custom) as UIButton
              btn9.setImage(UIImage(named: "Location.png"), forState: UIControlState.Normal)
              btn9.frame = CGRectMake((bacViewF.frame.size.width-90)/2, 5, 90, 90)
              btn9.tag = 4
  
              btn9.addTarget(self, action: #selector(ViewController.userLocations(_:)), forControlEvents: UIControlEvents.TouchUpInside)
              bacViewF.addSubview(btn9)
              self.view.addSubview(bacViewF)
  
              let l4 = UILabel(frame: CGRectMake((bacViewF.frame.size.width-100)/2, 100, 100, 21))
  
              l4.textAlignment = NSTextAlignment.Center
              l4.textColor = UIColor(red: 41/255.0, green: 43/255.0, blue: 64/255.0, alpha: 1)
              l4.text = "User Locations"
              bacViewF.addSubview(l4)
              l4.font = UIFont.systemFontOfSize(11)
  

  回复于 2024-04-28T15:03:39+08:00