swift中想要动态计算text文字的大小
搜：
swift calculate UItext size
参考：
ios – Calculating UILabel Text Size – Stack Overflow
ios – Adjust UILabel height to text (Swift) – Stack Overflow
搜：
swift calculate UITextView size
参考：
dynamic – How do I size a UITextView to its content on iOS 7? – Stack Overflow
暂时用的是：
1 2 3 4 5 6 | //TODO: add support for other device type//current only for iPhone 6let singleLineMaxWidth = UIScreen.mainScreen().bounds.width * 0.6print("singleLineMaxWidth=\(singleLineMaxWidth)")let realTextSize = self.displayTextView!.sizeThatFits(CGSize(width: singleLineMaxWidth, height: CGFloat.max))print("realTextSize=\(realTextSize)") |
输出：
1 2 | singleLineMaxWidth=225.0realTextSize=(221.5, 88.0) |
后来整理出一个函数了：
1 2 3 4 5 6 7 8 9 10 11 | static func calcRealTextSize(text:String, font:UIFont) -> CGSize { let singleLineMaxWidth = UIScreen.mainScreen().bounds.width * 0.6 print("singleLineMaxWidth=\(singleLineMaxWidth)") let tmpTextView = UITextView(frame: CGRectZero) tmpTextView.font = font tmpTextView.text = text let realTextSize = tmpTextView.sizeThatFits(CGSize(width: singleLineMaxWidth, height: CGFloat.max)) print("calculated realTextSize=\(realTextSize)") return realTextSize } |
调用举例：
1 2 | let text:String ＝ “输入你要测试的内容，可长可短”calcRealTextSize(text, font: UIFont.systemFontOfSize(12)) |
更多函数可参考：
https://github.com/crifan/crifanLib/tree/master/swift
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