[英]Calculate Font Size to Fit Frame - Core Text - NSAttributedString - iOS
[英]howto calculate the size of a CGRect to fit with a text ( IOS , swift )
我在自己的视图中绘制了一个文本,这很好用。
现在如何计算绘制的文字宽度?
我的代码:在我的代码中,我定义了“ iBoxLength”,它是假定的文本大小,并且比例合理(太大)。
let fieldColor: UIColor = UIColor.darkGrayColor()
let fieldFont = UIFont(name: "Helvetica Neue", size: fTextSize)
var paraStyle = NSMutableParagraphStyle()
//var textalign = NSTextAlignment.Center;
paraStyle.lineSpacing = 6.0
paraStyle.alignment = NSTextAlignment.Center;
var skew = 0.1
let attributes = [
NSForegroundColorAttributeName: fieldColor,
NSParagraphStyleAttributeName: paraStyle,
NSObliquenessAttributeName: skew,
//NSTextAlignment: textalign,
NSFontAttributeName: fieldFont!
]
s.drawInRect(CGRectMake(CGFloat(Float(iTextPositionX)-Float(iBoxLength/2)), CGFloat(iTextPositionY), CGFloat(iBoxLength), CGFloat(10)), withAttributes: attributes)
var Textwidth:Float = getWidth(s); // <------------------------------
NSString
具有sizeWithAttributes()
方法:
let text = NSString("myText")
let textSize = text.sizeWithAttributes(attributes)
请参阅: NSString UIKit添加参考
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