字符串替换电话号码iOS Swift

Question

我从“联系人”中导入电话号码并保存在中NSString。此字符串包含空格，我尝试使用方法将其删除：

numero = numero.stringByReplacingOccurrencesOfString(" ", withString: "")

这种方法行不通。

func sostituisci( stringa: NSString! ) -> NSString     
{         
var numero: NSString = ""         
NSLog(stringa) 
numero = ((stringa as String).stringByReplacingOccurrencesOfString(" ", withString: "") as NSString) 
NSLog(numero)

return numero
}

输出不变

日志

2014-11-05 17:54:50.734 HappyRicarica[33438:3119446] [phone]
2014-11-05 17:54:50.737 HappyRicarica[33438:3119446] [phone]

Answer 1

我怀疑您字符串中的空格字符实际上不是空格。请尝试在后面添加此代码，NSLog(string)以查看字符串中字符的unicode标量值是什么：

for uni in (stringa as String).unicodeScalars {
    println("\(uni) = \(uni.value)")
}

“（[phone]）”的预期输出为：

( = 40
3 = 51
2 = 50
7 = 55
) = 41
  = 32
1 = 49
2 = 50
4 = 52
- = 45
3 = 51
5 = 53
0 = 48
3 = 51

从您的评论中，您的空间值为160而不是32。您可以使用以下方法将其删除：

numero = stringa.stringByReplacingOccurrencesOfString(String(Character(UnicodeScalar(160))), withString: "")