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我已经阅读放样溢出了很多,看了关于与代码生成按钮YouTube视频,但我无法弄清楚如何if语句基于关闭按钮有一个。这是嵌套在另一个声明中,因为当一个问题与oringal是或否按钮回答我还有一个问题是问。如果代码语句生成按钮,斯威夫特
我:
var btn = UIButton(frame: CGRectMake(50, 50, 150, 20));
btn.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal);
btn.setTitle("My Button Text!!", forState:UIControlState.Normal);
btn.addTarget(self, action: "buttonTapped:", forControlEvents: UIControlEvents.TouchUpInside);
self.view.addSubview(btn);
func buttonTapped(sender: UIButton!) {
println("Button Tapped!!!")
}
但是,而不是打印 “按钮螺纹!!!”我收到一个“SIGABART”错误。我怎么能使用if语句而不是函数呢?有没有更好的方法来解决这个函数声明?
完整的代码是:
//
// ViewController.swift
// Living Vermont
//
// Created by Matthew Furtsch on 6/8/15.
// Copyright (c) 2015 Matthew Furtsch. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
var label1: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
label1 = UILabel()
label1.text = "Is it a plant?"
label1.font = UIFont.systemFontOfSize(36)
label1.sizeToFit()
//Label location quardnets
label1.center = CGPoint(x: 100, y: 0)
view.addSubview(label1)
UIView.animateWithDuration(1.5, delay: 0.0, usingSpringWithDamping: 0.2, initialSpringVelocity: 0.0, options: nil, animations: {
self.label1.center = CGPoint(x: 100, y: 0 + 40)
}, completion: nil)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func journal(sender: AnyObject)
{
}
@IBAction func noButton(sender: AnyObject)
{
label1.text = "no"
var btn = UIButton(frame: CGRectMake(50, 50, 150, 20));
btn.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal);
btn.setTitle("My Button Text!!", forState:UIControlState.Normal);
btn.addTarget(self, action: "buttonTapped:", forControlEvents: UIControlEvents.TouchUpInside);
self.view.addSubview(btn);
func buttonTapped(sender: UIButton!) {
println("Button Tapped!!!")
}
}
@IBAction func yesButton(sender: AnyObject)
{
label1.text = "yes"
}
}
如果你得到一个SIGABRT,什么是相关的错误消息,解释中止的原因是什么?请提供消息和堆栈跟踪。 – kbgn
的代码,你提供的作品完全对我很好。也许这是Xcode中的一个错误...尝试重新启动它。 – LinusGeffarth