我已经测试了下面的代码,但是当我给它约束时它会变成一个小圆圈:
override func drawRect(rect: CGRect) {
var path = UIBezierPath(ovalInRect: rect)
fillColor.setFill()
path.fill()
//set up the width and height variables
//for the horizontal stroke
let plusHeight:CGFloat = 300.0
let plusWidth:CGFloat = 450.0
//create the path
var plusPath = UIBezierPath()
//set the path's line width to the height of the stroke
plusPath.lineWidth = plusHeight
//move the initial point of the path
//to the start of the horizontal stroke
plusPath.moveToPoint(CGPoint(
x:self.bounds.width/2 - plusWidth/2 + 0.5,
y:self.bounds.height/2 + 0.5))
//add a point to …Run Code Online (Sandbox Code Playgroud) 我正在尝试使用UILabel创建打字机动画效果,但无法找到任何答案.UILabel是否是正确的使用对象?我希望文本在屏幕上打印一个字符串数组,例如"登录...打开文件夹...重新启动系统......"等等.我应该提到我是编码的新手,我试过搜索文档和API参考,但没有运气.我正在学习SWIFT,如果值得一提的话