如何在iOS中添加虚线内部视图
如何在UIView中添加虚线 我的代码:如何在iOS中添加虚线内部视图,ios,swift,uibezierpath,drawrect,Ios,Swift,Uibezierpath,Drawrect,如何在UIView中添加虚线 我的代码: let path = UIBezierPath() let p0 = CGPointMake(CGRectGetMinX(view.bounds), CGRectGetMidY(view.bounds)) path.moveToPoint(p0) let p1 = CGPointMake(CGRectGetMaxX(view.bounds),
let path = UIBezierPath()
let p0 = CGPointMake(CGRectGetMinX(view.bounds),
CGRectGetMidY(view.bounds))
path.moveToPoint(p0)
let p1 = CGPointMake(CGRectGetMaxX(view.bounds),
CGRectGetMidY(view.bounds))
path.addLineToPoint(p1)
let dashes: [ CGFloat ] = [ 16.0, 32.0 ]
path.setLineDash(dashes, count: dashes.count, phase: 0.0)
path.lineWidth = 8.0
path.lineCapStyle = .Butt
UIColor.magentaColor().set()
path.stroke()
view.setNeedsDisplay()
但它没有显示任何内容
我在日志中看到了这一点:
CGContextSetLineDash:无效的上下文0x0。如果要查看回溯,请设置CG_CONTEXT_SHOW_backtrace环境变量
试试这个
let rect = CGRect.init(origin: CGPoint.init(x: 0, y: 0), size: CGSize.init(width: 180, height: 180))//Set Height width as you want
let layer = CAShapeLayer.init()
let path = UIBezierPath(roundedRect: rect, cornerRadius: 8)
layer.path = path.cgPath;
layer.strokeColor = UIColor(red: 205/255, green: 207/255, blue: 211/255, alpha: 1.0).cgColor; // Set Dashed line Color
layer.lineDashPattern = [7,7]; // Here you set line length
layer.backgroundColor = UIColor.clear.cgColor;
layer.fillColor = UIColor.clear.cgColor;
self.newView.layer.addSublayer(layer);
希望这会有帮助 试试这个
let rect = CGRect.init(origin: CGPoint.init(x: 0, y: 0), size: CGSize.init(width: 180, height: 180))//Set Height width as you want
let layer = CAShapeLayer.init()
let path = UIBezierPath(roundedRect: rect, cornerRadius: 8)
layer.path = path.cgPath;
layer.strokeColor = UIColor(red: 205/255, green: 207/255, blue: 211/255, alpha: 1.0).cgColor; // Set Dashed line Color
layer.lineDashPattern = [7,7]; // Here you set line length
layer.backgroundColor = UIColor.clear.cgColor;
layer.fillColor = UIColor.clear.cgColor;
self.newView.layer.addSublayer(layer);
希望这会有帮助 使用下面的代码将虚线添加到父视图中
for index in 0 ..< 10 {
let frame : CGRect = CGRectMake(index*10,200,2,30)
var subview : UIView = UIView(frame: frame)
testView.backgroundColor = UIColor.gray
testView.alpha=1.0
self.view.addSubview(testView)
}
0中索引的。<10{
let帧:CGRect=CGRectMake(索引*10200,2,30)
变量子视图:UIView=UIView(帧:帧)
testView.backgroundColor=UIColor.gray
testView.alpha=1.0
self.view.addSubview(testView)
}
使用下面的代码将虚线添加到父视图中
for index in 0 ..< 10 {
let frame : CGRect = CGRectMake(index*10,200,2,30)
var subview : UIView = UIView(frame: frame)
testView.backgroundColor = UIColor.gray
testView.alpha=1.0
self.view.addSubview(testView)
}
0中索引的。<10{
let帧:CGRect=CGRectMake(索引*10200,2,30)
变量子视图:UIView=UIView(帧:帧)
testView.backgroundColor=UIColor.gray
testView.alpha=1.0
self.view.addSubview(testView)
}
这对我很有效,我创建了一个框,给出了一个高度,例如1,并添加了一个虚线CAShapeLayer:
let line = CAShapeLayer()
let rect = CGRect(x: /*X position*/, y: /*Y position */, width: /*X width of line*/, height: /*height of line*/)
line.path = UIBezierPath(roundedRect: view.bounds, cornerRadius:0).cgPath
line.frame = self.bounds
line.strokeColor = UIColor.lightGray.cgColor
line.fillColor = UIColor.lightGray.cgColor
line.lineDashPattern = [4, 4]
view.layer.addSublayer(line)
希望有帮助 这对我很有效,我创建了一个框,给出了一个高度,例如1,并添加了一个虚线CAShapeLayer:
let line = CAShapeLayer()
let rect = CGRect(x: /*X position*/, y: /*Y position */, width: /*X width of line*/, height: /*height of line*/)
line.path = UIBezierPath(roundedRect: view.bounds, cornerRadius:0).cgPath
line.frame = self.bounds
line.strokeColor = UIColor.lightGray.cgColor
line.fillColor = UIColor.lightGray.cgColor
line.lineDashPattern = [4, 4]
view.layer.addSublayer(line)
希望有帮助 您可以添加一个可视化视图来创建您想要创建的视图。可能重复:您是否在
drawRect:
函数中调用它?确保这样做,然后删除view.setNeedsDisplay()
Swift 2。。。讨厌。。。它已过时。您是否可以添加一个可视化视图来创建您想要创建的视图。可能的重复:您是否在drawRect:
函数中调用它?确保这样做,然后删除view.setNeedsDisplay()
Swift 2。。。讨厌。。。它已经过时了。省略.init
s以获得更简洁的代码,例如:let rect=CGRect(原点:CGPoint(x:0,y:0),size:CGSize(width:180,height:180))
省略.init
s以获得更简洁的代码,例如:let rect=CGRect(原点:CGPoint(x:0,y:0),size:CGSize(width:180,height:180))