【发布时间】：2010-11-17 19:14:07
【问题描述】：
我想知道如何格式化用于电话号码的文本字段（例如 iPhone 上的“添加新联系人”页面。当我输入新手机时，例如 1236890987，它会格式化它如 (123) 689-0987。） 我已经把键盘设置为数字键盘了。
【问题讨论】：
标签： iphone objective-c cocoa-touch iphone-sdk-3.0
【发布时间】：2010-11-17 19:14:07
【问题描述】：
这是我的解决方案.. 效果很好！实时格式化电话号码。注意：这是 10 位数的电话号码。目前它会自动将其格式化为 (xxx) xxx-xxxx.. 调整到您的内心喜悦。
首先在您的shouldChangeCharactersInRange 中，您要收集电话文本字段的整个字符串并将其传递给验证/格式化函数。
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSString* totalString = [NSString stringWithFormat:@"%@%@",textField.text,string];
// if it's the phone number textfield format it.
if(textField.tag==102 ) {
if (range.length == 1) {
// Delete button was hit.. so tell the method to delete the last char.
textField.text = [self formatPhoneNumber:totalString deleteLastChar:YES];
} else {
textField.text = [self formatPhoneNumber:totalString deleteLastChar:NO ];
}
return false;
}
return YES;
}
这里是电话号码的格式。正则表达式可能会被清理一下。但我已经测试了这段代码一段时间，似乎通过了所有的铃铛。请注意，我们还使用此功能删除电话号码中的号码。在这里工作更容易一些，因为我们已经去掉了所有其他非数字。
-(NSString*) formatPhoneNumber:(NSString*) simpleNumber deleteLastChar:(BOOL)deleteLastChar {
if(simpleNumber.length==0) return @"";
// use regex to remove non-digits(including spaces) so we are left with just the numbers
NSError *error = NULL;
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[\\s-\\(\\)]" options:NSRegularExpressionCaseInsensitive error:&error];
simpleNumber = [regex stringByReplacingMatchesInString:simpleNumber options:0 range:NSMakeRange(0, [simpleNumber length]) withTemplate:@""];
// check if the number is to long
if(simpleNumber.length>10) {
// remove last extra chars.
simpleNumber = [simpleNumber substringToIndex:10];
}
if(deleteLastChar) {
// should we delete the last digit?
simpleNumber = [simpleNumber substringToIndex:[simpleNumber length] - 1];
}
// 123 456 7890
// format the number.. if it's less then 7 digits.. then use this regex.
if(simpleNumber.length<7)
simpleNumber = [simpleNumber stringByReplacingOccurrencesOfString:@"(\\d{3})(\\d+)"
withString:@"($1) $2"
options:NSRegularExpressionSearch
range:NSMakeRange(0, [simpleNumber length])];
else // else do this one..
simpleNumber = [simpleNumber stringByReplacingOccurrencesOfString:@"(\\d{3})(\\d{3})(\\d+)"
withString:@"($1) $2-$3"
options:NSRegularExpressionSearch
range:NSMakeRange(0, [simpleNumber length])];
return simpleNumber;
}
【讨论】：
-
运行良好。此外，您可以在输入完整号码后关闭键盘，方法是在 formatPhoneNumber: 方法中添加以下内容：
if (simpleNumber.length == 10 && deleteLastChar == NO) { [textField resignFirstResponder]; } -
如何将它连接到实际的文本字段？
-
尝试使用以下代码添加您的方法。这是正确的吗？它不工作。
case 3: { cell.textLabel.text = @"Phone" ; tf = phoneFieldTextField = [self makeTextField:self.phone placeholder:@"xxx-xxx-xxxx"]; phoneFieldTextField.keyboardType = UIKeyboardTypePhonePad; [self formatPhoneNumber:phoneFieldTextField.text deleteLastChar:YES]; [cell addSubview:phoneFieldTextField]; break ; } -
要将其连接到界面构建器中的文本字段，您需要确保将文本字段的委托设置为文件所有者（很可能）。然后将上述两种方法添加到您的 .m 文件中。目前它通过使用“textField.tag==102”语句确保它是一个电话文本字段。可以在界面生成器中设置文本字段（或任何其他 ui 对象）的标签。所以在这种情况下，我在界面生成器中将标签设置为 102。
-
顺便说一句：似乎我应该得到答案？是的，也许？
在 Swift 4 中你可以这样做：
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool
{
if (textField == phoneTextField) {
let newString = (textField.text! as NSString).replacingCharacters(in: range, with: string)
let components = newString.components(separatedBy: NSCharacterSet.decimalDigits.inverted)
let decimalString = components.joined(separator: "") as NSString
let length = decimalString.length
let hasLeadingOne = length > 0 && decimalString.hasPrefix("1")
if length == 0 || (length > 10 && !hasLeadingOne) || length > 11 {
let newLength = (textField.text! as NSString).length + (string as NSString).length - range.length as Int
return (newLength > 10) ? false : true
}
var index = 0 as Int
let formattedString = NSMutableString()
if hasLeadingOne {
formattedString.append("1 ")
index += 1
}
if (length - index) > 3 {
let areaCode = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("(%@)", areaCode)
index += 3
}
if length - index > 3 {
let prefix = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("%@-", prefix)
index += 3
}
let remainder = decimalString.substring(from: index)
formattedString.append(remainder)
textField.text = formattedString as String
return false
}
else {
return true
}
}
【讨论】：
-
谢谢，vikzilla。很有帮助。
-
可能需要调整：let decimalString = components.joinWithSeparator("") as NSString
-
应该让 hasLeadingOne = length > 0 && decimalString.characterAtIndex(0) == (49 as unichar) 甚至让 hasLeadingOne = length > 0 && decimalString.hasPrefix("1")
-
如何将其更改为“(+61) 428-74-5183”这种格式？
-
别忘了在 viewDidLoad textfield.delegate = self 中添加 UITextFieldDelegate & :)
Vikzilla 为 Swift 3 更新了答案：
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if textField == phoneTextField {
let newString = (textField.text! as NSString).replacingCharacters(in: range, with: string)
let components = (newString as NSString).components(separatedBy: NSCharacterSet.decimalDigits.inverted)
let decimalString = components.joined(separator: "") as NSString
let length = decimalString.length
let hasLeadingOne = length > 0 && decimalString.character(at: 0) == (1 as unichar)
if length == 0 || (length > 10 && !hasLeadingOne) || length > 11 {
let newLength = (textField.text! as NSString).length + (string as NSString).length - range.length as Int
return (newLength > 10) ? false : true
}
var index = 0 as Int
let formattedString = NSMutableString()
if hasLeadingOne {
formattedString.append("1 ")
index += 1
}
if (length - index) > 3 {
let areaCode = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("(%@)", areaCode)
index += 3
}
if length - index > 3 {
let prefix = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("%@-", prefix)
index += 3
}
let remainder = decimalString.substring(from: index)
formattedString.append(remainder)
textField.text = formattedString as String
return false
} else {
return true
}
}
【讨论】：
-
如何将其更改为“(+61) 428-74-5183”这种格式？
我已经为此苦苦挣扎了几个小时，这就是我所拥有的：
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
NSUInteger currentLength = textField.text.length;
NSCharacterSet *numbers = [NSCharacterSet decimalDigitCharacterSet];
if (range.length == 1) {
return YES;
}
if ([numbers characterIsMember:[string characterAtIndex:0]]) {
if ( currentLength == 3 )
{
if (range.length != 1)
{
NSString *firstThreeDigits = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *updatedText;
if ([string isEqualToString:@"-"])
{
updatedText = [NSString stringWithFormat:@"%@",firstThreeDigits];
}
else
{
updatedText = [NSString stringWithFormat:@"%@-",firstThreeDigits];
}
[textField setText:updatedText];
}
}
else if ( currentLength > 3 && currentLength < 8 )
{
if ( range.length != 1 )
{
NSString *firstThree = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *dash = [textField.text substringWithRange:NSMakeRange(3, 1)];
NSUInteger newLenght = range.location - 4;
NSString *nextDigits = [textField.text substringWithRange:NSMakeRange(4, newLenght)];
NSString *updatedText = [NSString stringWithFormat:@"%@%@%@",firstThree,dash,nextDigits];
[textField setText:updatedText];
}
}
else if ( currentLength == 8 )
{
if ( range.length != 1 )
{
NSString *areaCode = [textField.text substringWithRange:NSMakeRange(0, 3)];
NSString *firstThree = [textField.text substringWithRange:NSMakeRange(4, 3)];
NSString *nextDigit = [textField.text substringWithRange:NSMakeRange(7, 1)];
[textField setText:[NSString stringWithFormat:@"(%@) %@-%@",areaCode,firstThree,nextDigit]];
}
}
}
else {
return NO;
}
return YES;
}
我希望有人可以贡献。
【讨论】：
以下函数在 textField 上强制执行 (999)333-5555 格式：
斯威夫特 3：
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if (textField == self.phone){
let newString = (textField.text! as NSString).replacingCharacters(in: range, with: string)
let components = newString.components(separatedBy: NSCharacterSet.decimalDigits.inverted)
let decimalString = components.joined(separator: "") as NSString
let length = decimalString.length
let hasLeadingOne = length > 0 && decimalString.character(at: 0) == (1 as unichar)
if length == 0 || (length > 10 && !hasLeadingOne) || length > 11 {
let newLength = (textField.text! as NSString).length + (string as NSString).length - range.length as Int
return (newLength > 10) ? false : true
}
var index = 0 as Int
let formattedString = NSMutableString()
if hasLeadingOne {
formattedString.append("1 ")
index += 1
}
if (length - index) > 3 {
let areaCode = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("(%@)", areaCode)
index += 3
}
if length - index > 3 {
let prefix = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("%@-", prefix)
index += 3
}
let remainder = decimalString.substring(from: index)
formattedString.append(remainder)
textField.text = formattedString as String
return false
} else {
return true
}
}
【讨论】：
这是我的看法。这与 Apple 在电话和联系人应用程序中所做的很接近（至少当您的地区设置为美国时，我不确定每个地区的行为是否会发生变化）。
我对格式化为1 (123) 123-1234 并支持更长的数字而不进行格式化特别感兴趣。在其他解决方案中仅检查range.length == 1（用于删除/退格）也存在一个错误，该错误会阻止用户选择整个字符串或部分字符串并按下删除/退格键，这解决了这种情况。
当您开始在中间选择一个范围并进行编辑时，会发生一些奇怪的行为，由于设置了文本字段值，光标总是在字符串的末尾结束。我不确定如何在UITextField 中重新定位光标，我认为Apple 实际上在联系人和电话应用程序中使用UITextView，因为它们在执行此内联格式时保持光标位置，它们似乎可以处理所有细微差别！我希望他们能开箱即用地给我们这个。
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSMutableString *newString = [NSMutableString stringWithString:textField.text];
[newString replaceCharactersInRange:range withString:string];
NSString *phoneNumberString = [self formattedPhoneNumber:newString];
if (range.length >= 1) { // backspace/delete
if (phoneNumberString.length > 1) {
// the way we format the number it is possible that when the user presses backspace they are not deleting the last number
// in the string, so we need to check if the last character is a number, if it isn't we need to delete everything after the
// last number in the string
unichar lastChar = [phoneNumberString characterAtIndex:phoneNumberString.length-1];
NSCharacterSet *numberCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@"1234567890#*"];
if (![numberCharacterSet characterIsMember:lastChar]) {
NSRange numberRange = [phoneNumberString rangeOfCharacterFromSet:numberCharacterSet options:NSBackwardsSearch];
phoneNumberString = [phoneNumberString substringToIndex:numberRange.location+1];
}
}
}
textField.text = phoneNumberString;
return NO;
}
- (NSString *)formattedPhoneNumber:(NSString *)string {
NSString *formattedPhoneNumber = @"";
NSCharacterSet *numberCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@"1234567890#*+"];
NSRange pauseRange = [string rangeOfString:@","];
NSRange waitRange = [string rangeOfString:@";"];
NSString *numberStringToFormat = nil;
NSString *numberStringToAppend = @"";
if (pauseRange.location != NSNotFound || waitRange.location != NSNotFound) {
NSString *choppedString = [string substringToIndex:MIN(pauseRange.location, waitRange.location)];
numberStringToFormat = [[choppedString componentsSeparatedByCharactersInSet:[numberCharacterSet invertedSet]] componentsJoinedByString:@""];
numberStringToAppend = [string substringFromIndex:MIN(pauseRange.location, waitRange.location)];
} else {
numberStringToFormat = [[string componentsSeparatedByCharactersInSet:[numberCharacterSet invertedSet]] componentsJoinedByString:@""];
}
if ([numberStringToFormat hasPrefix:@"0"] || [numberStringToFormat hasPrefix:@"11"]) {
// numbers starting with 0 and 11 should not be formatted
formattedPhoneNumber = numberStringToFormat;
} else if ([numberStringToFormat hasPrefix:@"1"]) {
if (numberStringToFormat.length <= 1) {
// 1
formattedPhoneNumber = numberStringToFormat;
} else if (numberStringToFormat.length <= 4) {
// 1 (234)
NSString *areaCode = [numberStringToFormat substringFromIndex:1];
if (areaCode.length < 3) {
formattedPhoneNumber = [NSString stringWithFormat:@"1 (%@",
[numberStringToFormat substringFromIndex:1]]; // 1 (XXX)
} else {
formattedPhoneNumber = [NSString stringWithFormat:@"1 (%@) ",
[numberStringToFormat substringFromIndex:1]]; // 1 (XXX)
}
} else if (numberStringToFormat.length <= 7) {
// 1 (234) 123
formattedPhoneNumber = [NSString stringWithFormat:@"1 (%@) %@",
[numberStringToFormat substringWithRange:NSMakeRange(1, 3)], //1 (XXX) 123
[numberStringToFormat substringFromIndex:4]]; // 1 (234) XXX
} else if (numberStringToFormat.length <= 11) {
// 1 (123) 123-1234
formattedPhoneNumber = [NSString stringWithFormat:@"1 (%@) %@-%@",
[numberStringToFormat substringWithRange:NSMakeRange(1, 3)], //1 (XXX) 123
[numberStringToFormat substringWithRange:NSMakeRange(4, 3)], //1 (234) XXX-1234
[numberStringToFormat substringFromIndex:7]]; // 1 (234) 123-XXXX
} else {
// 1123456789012....
formattedPhoneNumber = numberStringToFormat;
}
} else {
if (numberStringToFormat.length <= 3) {
// 123
formattedPhoneNumber = numberStringToFormat;
} else if (numberStringToFormat.length <= 7) {
// 123-1234
formattedPhoneNumber = [NSString stringWithFormat:@"%@-%@",
[numberStringToFormat substringToIndex:3], // XXX-1234
[numberStringToFormat substringFromIndex:3]]; // 123-XXXX
} else if (numberStringToFormat.length <= 10) {
// (123) 123-1234
formattedPhoneNumber = [NSString stringWithFormat:@"(%@) %@-%@",
[numberStringToFormat substringToIndex:3], // (XXX) 123-1234
[numberStringToFormat substringWithRange:NSMakeRange(3, 3)], // (123) XXX-1234
[numberStringToFormat substringFromIndex:6]]; // (123) 123-XXXX
} else {
// 123456789012....
formattedPhoneNumber = numberStringToFormat;
}
}
if (numberStringToAppend.length > 0) {
formattedPhoneNumber = [NSString stringWithFormat:@"%@%@", formattedPhoneNumber, numberStringToAppend];
}
return formattedPhoneNumber;
}
【讨论】：
您可以在需要更新 textField 时调用此方法：
extension String {
func applyPatternOnNumbers(pattern: String, replacmentCharacter: Character) -> String {
var pureNumber = self.replacingOccurrences( of: "[^0-9]", with: "", options: .regularExpression)
for index in 0 ..< pattern.count {
guard index < pureNumber.count else { return pureNumber }
let stringIndex = String.Index(utf16Offset: index, in: pattern)
let patternCharacter = pattern[stringIndex]
guard patternCharacter != replacmentCharacter else { continue }
pureNumber.insert(patternCharacter, at: stringIndex)
}
return pureNumber
}
}
例子：
guard let text = textField.text else { return }
textField.text = text.applyPatternOnNumbers(pattern: "+# (###) ###-####", replacmentCharacter: "#")
【讨论】：
此解决方案非常适用于没有国际拨号前缀 (+1) 且没有分机号的北美号码。该号码将被格式化为“(212) 555-1234”。它将预先输入“）”和“-”，但也会正确删除。
这是您的文本字段委托应实现的-textField:shouldChangeCharactersInRange:replacementString：
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
if (textField == self.myPhoneTextField) {
NSString *newText = [textField.text stringByReplacingCharactersInRange:range withString:string];
BOOL deleting = [newText length] < [textField.text length];
NSString *stripppedNumber = [newText stringByReplacingOccurrencesOfString:@"[^0-9]" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, [newText length])];
NSUInteger digits = [stripppedNumber length];
if (digits > 10)
stripppedNumber = [stripppedNumber substringToIndex:10];
UITextRange *selectedRange = [textField selectedTextRange];
NSInteger oldLength = [textField.text length];
if (digits == 0)
textField.text = @"";
else if (digits < 3 || (digits == 3 && deleting))
textField.text = [NSString stringWithFormat:@"(%@", stripppedNumber];
else if (digits < 6 || (digits == 6 && deleting))
textField.text = [NSString stringWithFormat:@"(%@) %@", [stripppedNumber substringToIndex:3], [stripppedNumber substringFromIndex:3]];
else
textField.text = [NSString stringWithFormat:@"(%@) %@-%@", [stripppedNumber substringToIndex:3], [stripppedNumber substringWithRange:NSMakeRange(3, 3)], [stripppedNumber substringFromIndex:6]];
UITextPosition *newPosition = [textField positionFromPosition:selectedRange.start offset:[textField.text length] - oldLength];
UITextRange *newRange = [textField textRangeFromPosition:newPosition toPosition:newPosition];
[textField setSelectedTextRange:newRange];
return NO;
}
return YES;
}
【讨论】：
来自 Vikzilla 的 Swift 2.0 更新答案：
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
sendButton.enabled = true
let newString = (textField.text! as NSString).stringByReplacingCharactersInRange(range, withString: string)
let components = newString.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet)
let decimalString : String = components.joinWithSeparator("")
let length = decimalString.characters.count
let decimalStr = decimalString as NSString
let hasLeadingOne = length > 0 && decimalStr.characterAtIndex(0) == (1 as unichar)
if length == 0 || (length > 10 && !hasLeadingOne) || length > 11
{
let newLength = (textField.text! as NSString).length + (string as NSString).length - range.length as Int
return (newLength > 10) ? false : true
}
var index = 0 as Int
let formattedString = NSMutableString()
if hasLeadingOne
{
formattedString.appendString("1 ")
index += 1
}
if (length - index) > 3
{
let areaCode = decimalStr.substringWithRange(NSMakeRange(index, 3))
formattedString.appendFormat("(%@)", areaCode)
index += 3
}
if length - index > 3
{
let prefix = decimalStr.substringWithRange(NSMakeRange(index, 3))
formattedString.appendFormat("%@-", prefix)
index += 3
}
let remainder = decimalStr.substringFromIndex(index)
formattedString.appendString(remainder)
textField.text = formattedString as String
return false
}
对我来说很好，希望它也对你有用:)
【讨论】：
-
那里有一个无关的 sendButton 引用
Swift 4（并且没有 NSString）
对于格式 +X(XXX)XXX-XXXX 或 +X(XXX)XXX-XX-XX 更新和轻微
class ViewController: UIViewController, UITextFieldDelegate {
var myPhoneNumber = String()
@IBOutlet weak var phoneTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
phoneTextField.delegate = self
phoneTextField.keyboardType = .phonePad
}
func textFieldDidBeginEditing(_ textField: UITextField) {
if (textField == self.phoneTextField) && textField.text == ""{
textField.text = "+7(" //your country code default
}
}
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if textField == phoneTextField {
let res = phoneMask(phoneTextField: phoneTextField, textField: textField, range, string)
myPhoneNumber = res.phoneNumber != "" ? "+\(res.phoneNumber)" : ""
print("Phone - \(myPhoneNumber) MaskPhone=\(res.maskPhoneNumber)")
if (res.phoneNumber.count == 11) || (res.phoneNumber.count == 0) {
//phone number entered or completely cleared
print("EDIT END: Phone = \(myPhoneNumber) MaskPhone = \(res.maskPhoneNumber)")
}
return res.result
}
return true
}
}
extension UITextFieldDelegate {
func phoneMask(phoneTextField: UITextField, textField: UITextField, _ range: NSRange, _ string: String) -> (result: Bool, phoneNumber: String, maskPhoneNumber: String) {
let oldString = textField.text!
let newString = oldString.replacingCharacters(in: Range(range, in: oldString)!, with: string)
//in numString only Numeric characters
let components = newString.components(separatedBy: CharacterSet.decimalDigits.inverted)
let numString = components.joined(separator: "")
let length = numString.count
let maxCharInPhone = 11
if newString.count < oldString.count { //backspace to work
if newString.count <= 2 { //if now "+7(" and push backspace
phoneTextField.text = ""
return (false, "", "")
} else {
return (true, numString, newString) //will not in the process backspace
}
}
if length > maxCharInPhone { // input is complete, do not add characters
return (false, numString, newString)
}
var indexStart, indexEnd: String.Index
var maskString = "", template = ""
var endOffset = 0
if newString == "+" { // allow add "+" if first Char
maskString += "+"
}
//format +X(XXX)XXX-XXXX
if length > 0 {
maskString += "+"
indexStart = numString.index(numString.startIndex, offsetBy: 0)
indexEnd = numString.index(numString.startIndex, offsetBy: 1)
maskString += String(numString[indexStart..<indexEnd]) + "("
}
if length > 1 {
endOffset = 4
template = ")"
if length < 4 {
endOffset = length
template = ""
}
indexStart = numString.index(numString.startIndex, offsetBy: 1)
indexEnd = numString.index(numString.startIndex, offsetBy: endOffset)
maskString += String(numString[indexStart..<indexEnd]) + template
}
if length > 4 {
endOffset = 7
template = "-"
if length < 7 {
endOffset = length
template = ""
}
indexStart = numString.index(numString.startIndex, offsetBy: 4)
indexEnd = numString.index(numString.startIndex, offsetBy: endOffset)
maskString += String(numString[indexStart..<indexEnd]) + template
}
var nIndex: Int; nIndex = 7
// //format +X(XXX)XXX-XX-XX -> if need uncoment
// nIndex = 9
//
// if length > 7 {
// endOffset = 9
// template = "-"
// if length < 9 {
// endOffset = length
// template = ""
// }
// indexStart = numString.index(numString.startIndex, offsetBy: 7)
// indexEnd = numString.index(numString.startIndex, offsetBy: endOffset)
// maskString += String(numString[indexStart..<indexEnd]) + template
// }
if length > nIndex {
indexStart = numString.index(numString.startIndex, offsetBy: nIndex)
indexEnd = numString.index(numString.startIndex, offsetBy: length)
maskString += String(numString[indexStart..<indexEnd])
}
phoneTextField.text = maskString
if length == maxCharInPhone {
//dimiss kayboard
phoneTextField.endEditing(true)
return (false, numString, newString)
}
return (false, numString, newString)
}
}
【讨论】：
这是我从英国的角度略微本地化的 Swift 2 代码。
它将格式化：
+11234567890 为 +1 (123) 456 7890
+33123456789 为 +33 1 23 45 67 89
+441234123456 为 +44 1234 123456（已进一步本地化为 01234 123456），因为我不需要查看英国号码的国家/地区代码。
调用如下：
initInternationalPhoneFormats() //this just needs to be done once
var formattedNo = formatInternationalPhoneNo("+11234567890")
如果您有任何其他国家/地区代码和格式或代码改进，请告诉我。
享受吧。
import Cocoa
extension String
{
//extension from http://stackoverflow.com/questions/24092884/get-nth-character-of-a-string-in-swift-programming-language
subscript (i: Int) -> Character
{
return self[self.startIndex.advancedBy(i)]
}
}
var phoneNoFormat = [String : String]()
var localCountryCode: String? = "+44"
func initInternationalPhoneFormats()
{
if phoneNoFormat.count == 0
{
phoneNoFormat["0"] = "+44 #### ######" //local no (UK)
phoneNoFormat["02"] = "+44 ## #### #####" //local no (UK) London
phoneNoFormat["+1"] = "+# (###) ###-####" //US and Canada
phoneNoFormat["+234"] = "+## # ### ####" //Nigeria
phoneNoFormat["+2348"] = "+## ### ### ####" //Nigeria Mobile
phoneNoFormat["+31"] = "+## ### ## ## ##" //Netherlands
phoneNoFormat["+316"] = "+## # ## ## ## ##" //Netherlands Mobile
phoneNoFormat["+33"] = "+## # ## ## ## ##" //France
phoneNoFormat["+39"] = "+## ## ########" //Italy
phoneNoFormat["+392"] = "+## #### #####" //Italy
phoneNoFormat["+393"] = "+## ### #######" //Italy
phoneNoFormat["+44"] = "+## #### ######" //United Kingdom
phoneNoFormat["+442"] = "+## ## #### #####" //United Kingdom London
phoneNoFormat["+51"] = "+## # ### ####" //Peru
phoneNoFormat["+519"] = "+## ### ### ###" //Peru Mobile
phoneNoFormat["+54"] = "+## ### ### ####" //Argentina
phoneNoFormat["+541"] = "+## ## #### ####" //Argentina
phoneNoFormat["+549"] = "+## # ### ### ####" //Argentina
phoneNoFormat["+55"] = "+## (##) ####-####" //Brazil
phoneNoFormat["+551"] = "+## (##) ####-###" //Brazil Mobile?
phoneNoFormat["+60"] = "+## # #### ####" //Malaysia
phoneNoFormat["+6012"] = "+## ## ### ####" //Malaysia Mobile
phoneNoFormat["+607"] = "+## # ### ####" //Malaysia?
phoneNoFormat["+61"] = "+## # #### ####" //Australia
phoneNoFormat["+614"] = "+## ### ### ###" //Australia Mobile
phoneNoFormat["+62"] = "+## ## #######" //Indonesia
phoneNoFormat["+628"] = "+## ### ######" //Indonesia Mobile
phoneNoFormat["+65"] = "+## #### ####" //Singapore
phoneNoFormat["+90"] = "+## (###) ### ## ##" //Turkey
}
}
func getDiallingCode(phoneNo: String) -> String
{
var countryCode = phoneNo
while countryCode.characters.count > 0 && phoneNoFormat[countryCode] == nil
{
countryCode = String(countryCode.characters.dropLast())
}
if countryCode == "0"
{
return localCountryCode!
}
return countryCode
}
func formatInternationalPhoneNo(fullPhoneNo: String, localisePhoneNo: Bool = true) -> String
{
if fullPhoneNo == ""
{
return ""
}
initInternationalPhoneFormats()
let diallingCode = getDiallingCode(fullPhoneNo)
let localPhoneNo = fullPhoneNo.stringByReplacingOccurrencesOfString(diallingCode, withString: "", options: NSStringCompareOptions.LiteralSearch, range: nil)
var filteredPhoneNo = (localPhoneNo.characters.filter{["0","1","2","3","4","5","6","7","8","9"].contains($0)})
if filteredPhoneNo[0] == "0"
{
filteredPhoneNo.removeFirst()
}
let phoneNo:String = diallingCode + String(filteredPhoneNo)
if let format = phoneNoFormat[diallingCode]
{
let formatLength = format.characters.count
var formattedPhoneNo = [Character]()
var formatPos = 0
for char in phoneNo.characters
{
while formatPos < formatLength && format[formatPos] != "#" && format[formatPos] != "+"
{
formattedPhoneNo.append(format[formatPos])
formatPos++
}
if formatPos < formatLength
{
formattedPhoneNo.append(char)
formatPos++
}
else
{
break
}
}
if localisePhoneNo,
let localCode = localCountryCode
{
return String(formattedPhoneNo).stringByReplacingOccurrencesOfString(localCode + " ", withString: "0", options: NSStringCompareOptions.LiteralSearch, range: nil) //US users need to remove the extra 0
}
return String(formattedPhoneNo)
}
return String(filteredPhoneNo)
}
【讨论】：
您可以添加电话号码，例如 000-000-0000（10 位）。 请参考此代码。
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if (textField==Phone_TXT)
{
if (range.location == 12)
{
return NO;
}
// Backspace
if ([string length] == 0)
return YES;
if ((range.location == 3) || (range.location == 7))
{
NSString *str = [NSString stringWithFormat:@"%@-",textField.text];
textField.text = str;
}
return YES;
}
}
【讨论】：
我对 +X (XXX) XXX-XXXX 格式的解决方案。 (SWIFT)
func textFieldDidBeginEditing(textField: UITextField) {
if (textField == self.mobileField) {
textField.text = "+"
}
}
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
if (textField == self.mobileField) {
let newString = (textField.text! as NSString).stringByReplacingCharactersInRange(range, withString: string)
if (newString.characters.count < textField.text?.characters.count && newString.characters.count >= 1) {
return true // return true for backspace to work
} else if (newString.characters.count < 1) {
return false; // deleting "+" makes no sence
}
if (newString.characters.count > 17 ) {
return false;
}
let components = newString.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet)
let decimalString = components.joinWithSeparator("") as NSString
let length = decimalString.length
var index = 0
let formattedString = NSMutableString()
formattedString.appendString("+")
if (length >= 1) {
let countryCode = decimalString.substringWithRange(NSMakeRange(0, 1))
formattedString.appendString(countryCode)
index += 1
}
if (length > 1) {
var rangeLength = 3
if (length < 4) {
rangeLength = length - 1
}
let operatorCode = decimalString.substringWithRange(NSMakeRange(1, rangeLength))
formattedString.appendFormat(" (%@) ", operatorCode)
index += operatorCode.characters.count
}
if (length > 4) {
var rangeLength = 3
if (length < 7) {
rangeLength = length - 4
}
let prefix = decimalString.substringWithRange(NSMakeRange(4, rangeLength))
formattedString.appendFormat("%@-", prefix)
index += prefix.characters.count
}
if (index < length) {
let remainder = decimalString.substringFromIndex(index)
formattedString.appendString(remainder)
}
textField.text = formattedString as String
if (newString.characters.count == 17) {
textField.resignFirstResponder()
}
return false
}
return true
}
【讨论】：
Swift 5+
它是@Дарія Прокопович 答案的更新版本。
extension String {
func applyPatternOnNumbers(pattern:String = "+# (###) ###-####", replacmentCharacter:Character = "#") -> String {
var pureNumber = self.replacingOccurrences( of: "[^0-9]", with: "", options: .regularExpression)
for index in 0 ..< pattern.count {
guard index < pureNumber.count else { return pureNumber }
let stringIndex = String.Index(encodedOffset: index)
let patternCharacter = pattern[stringIndex]
guard patternCharacter != replacmentCharacter else { continue }
pureNumber.insert(patternCharacter, at: stringIndex)
}
return pureNumber
}
}
用法：
@IBAction func phoneTextFieldValueChanged(_ sender: Any) {
phoneTextField.text = phoneTextField.text!.applyPatternOnNumbers()
}
【讨论】：
你可以使用这个库https://github.com/luximetr/AnyFormatKit
例子
let textInputController = TextInputController()
let textInput = TextInputField() // or TextInputView or any TextInput
textInputController.textInput = textInput // setting textInput
let formatter = TextInputFormatter(textPattern: "### (###) ###-##-##", prefix: "+12")
textInputController.formatter = formatter // setting formatter
只需将您的 textField 设置为此 textInputController，它就会使用您设置的模式格式化文本。
或者
let phoneFormatter = TextFormatter(textPattern: "### (###) ###-##-##")
phoneFormatter.formattedText(from: "+123456789012") // +12 (345) 678-90-12
用于格式化完整字符串
【讨论】：
不幸的是，你必须自己做。联系人应用程序使用未记录的 API。由于某种原因，将输入格式化程序附加到文本字段并没有像在 Mac 上那样在 iPhone 上公开。随时提交功能增强错误报告。
【讨论】：
希望我要说的内容对像我一样在 iOS 上编程的新手有所帮助。我做了 zingle-dingle 的建议（非常感谢！）。为了帮助新的代码加上我将列出的内容可以帮助你。 1.你必须在头文件上添加 UITextFieldDelegate 。 2. UITextField 应该将委托与视图绑定，在我的例子中是 UIViewController，它是头文件。 3. UITextField 应该是 instatiated，这意味着，yourtextfile.delegate = self，在“.m”文件上。
【讨论】：
https://github.com/chebur/CHRTextFieldFormatter 对我来说就像一个魅力。
从使用页面复制/粘贴：
- (void)viewDidLoad {
[super viewDidLoad];
self.phoneNumberFormatter = [[CHRTextFieldFormatter alloc] initWithTextField:self.phoneNumberTextField mask:[CHRPhoneNumberMask new]];
self.cardNumberFormatter = [[CHRTextFieldFormatter alloc] initWithTextField:self.cardNumberTextField mask:[CHRCardNumberMask new]];
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
if (textField == self.phoneNumberTextField) {
return [self.phoneNumberFormatter textField:textField shouldChangeCharactersInRange:range replacementString:string];
} else if (textField == self.cardNumberTextField) {
return [self.cardNumberFormatter textField:textField shouldChangeCharactersInRange:range replacementString:string];
} else {
return YES;
}
}
也很快：
override func viewDidLoad() {
super.viewDidLoad()
self.phoneNumber.delegate = self
self.phoneNumberFormatter = CHRTextFieldFormatter(textField: self.phoneNumber, mask:CHRPhoneNumberMask())
}
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {
if textField == self.phoneNumber {
return self.phoneNumberFormatter.textField(textField, shouldChangeCharactersInRange: range, replacementString: string)
}
return true
}
【讨论】：
这是我对 05xx xxx xxxx 电话格式的解决方案。一开始我设置了
phoneTextField.delegate = self
phoneTextField.text = "05" // I don't let user to change it.
它还涵盖了光标位置的复制/粘贴情况。
也许它对不同格式的人有帮助。
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if range.location == 0 || range.location == 1 {
return false
}
var phone = (textField.text! as NSString).replacingCharacters(in: range, with: string)
if phone.length > 13 {
return false
}
phone = phone.replacingOccurrences(of: " ", with: "")
if phone.characters.count > 7 {
phone.insert(" ", at: phone.index(phone.startIndex, offsetBy: 4))
phone.insert(" ", at: phone.index(phone.startIndex, offsetBy: 8))
} else if phone.characters.count > 4 {
phone.insert(" ", at: phone.index(phone.startIndex, offsetBy: 4))
}
let text = textField.text
let stringToStart = text?.substring(to: (text?.index((text?.startIndex)!, offsetBy: range.location))!)
let stringToStartCount = ((stringToStart?.components(separatedBy: " ").count)! > 1) ? (stringToStart?.components(separatedBy: " ").count)!-1 : 0
var cursorIndex = range.location + string.length - stringToStartCount
if cursorIndex > 7 {
cursorIndex += 2
} else if cursorIndex > 4 {
cursorIndex += 1
}
textField.text = phone
textField.selectedTextRange = textField.textRange(from: textField.position(from: textField.beginningOfDocument, offset: cursorIndex)!, to: textField.position(from: textField.beginningOfDocument, offset: cursorIndex)!)
return false
}
【讨论】：
更新了 Swift 3 的“iOS 单元”答案，格式为 +X(XXX)XXX-XXXX：
func textFieldDidBeginEditing(_ textField: UITextField) {
if (textField == self.phoneTextField) {
textField.text = "+"
}
}
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
if (textField == self.phoneTextField) {
let newString = (textField.text! as NSString).replacingCharacters(in: range, with: string)
if (newString.characters.count < (textField.text?.characters.count)! && newString.characters.count >= 1) {
return true // return true for backspace to work
} else if (newString.characters.count < 1) {
return false; // deleting "+" makes no sence
}
if (newString.characters.count > 17 ) {
return false;
}
let components = newString.components(separatedBy: CharacterSet.decimalDigits.inverted)
let decimalString = components.joined(separator: "") as NSString
let length = decimalString.length
var index = 0
let formattedString = NSMutableString()
formattedString.append("+")
if (length >= 1) {
let countryCode = decimalString.substring(with: NSMakeRange(0, 1))
formattedString.append(countryCode)
index += 1
}
if (length > 1) {
var rangeLength = 3
if (length < 4) {
rangeLength = length - 1
}
let operatorCode = decimalString.substring(with: NSMakeRange(1, rangeLength))
formattedString.appendFormat(" (%@) ", operatorCode)
index += operatorCode.characters.count
}
if (length > 4) {
var rangeLength = 3
if (length < 7) {
rangeLength = length - 4
}
let prefix = decimalString.substring(with: NSMakeRange(4, rangeLength))
formattedString.appendFormat("%@-", prefix)
index += prefix.characters.count
}
if (index < length) {
let remainder = decimalString.substring(from: index)
formattedString.append(remainder)
}
textField.text = formattedString as String
if (newString.characters.count == 17) {
textField.resignFirstResponder()
}
return false
}
return true
}
【讨论】：
您必须手动执行此操作。获取 textField 通知并检查字段文本的长度并根据国家/地区对其进行格式化。 如果有任何问题，请告诉我。我已经这样做了
【讨论】：
-
嘿goeff，如果你能给我看代码来做这件事，那就太棒了，因为我刚开始用objective-c编码，这让我很困惑。提前致谢！
我有一个解决方案，但它有一些缺点，看看你是否可以修改和使用它。通过使用它，您可以实现将电话号码限制为 10 位并按照美国格式对其进行格式化。
#define MAX_LENGTH 10
在 UITextField Delegate 方法中实现
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
NSInteger insertDelta = string.length - range.length;
if (PhoneNumber_txt.text.length + insertDelta > MAX_LENGTH)
{
return NO; // the new string would be longer than MAX_LENGTH
}
else {
range.length = 3;
range.location = 3;
PhoneNumber_txt.text = [NSString stringWithFormat:@"(%@)%@-%@", [PhoneNumber_txt.text substringToIndex:3], [PhoneNumber_txt.text substringWithRange:range], [PhoneNumber_txt.text substringFromIndex:6]];
return YES;
}
}
【讨论】：
- (BOOL) textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSCharacterSet* validationSet = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
NSArray* components = [string componentsSeparatedByCharactersInSet:validationSet];
if ([components count] > 1) {
return NO;
}
NSString* newString = [textField.text stringByReplacingCharactersInRange:range
withString:string];
NSArray* validComponents = [newString componentsSeparatedByCharactersInSet:validationSet];
static const int localNumberMaxLength = 7;
static const int areaCodeMaxLength = 3;
static const int countryCodeMaxLength = 2;
newString = [validComponents componentsJoinedByString:@""];
if ([newString length] > localNumberMaxLength + areaCodeMaxLength + countryCodeMaxLength) {
return NO;
}
NSLog(@"new string: %@", newString);
NSMutableString* resultString = [NSMutableString string];
NSInteger localNumberLength = MIN([newString length], localNumberMaxLength);
if (localNumberLength > 0) {
NSString* number = [newString substringFromIndex:(int)[newString length] - localNumberLength];
[resultString appendString:number];
if ([resultString length] > 3) {
[resultString insertString:@"-" atIndex:3];
}
}
if ([newString length] > localNumberMaxLength) {
NSInteger areaCodeLength = MIN((int)[newString length] - localNumberMaxLength, areaCodeMaxLength);
NSRange areaRange = NSMakeRange((int)[newString length] - localNumberMaxLength - areaCodeLength, areaCodeLength);
NSString* area = [newString substringWithRange:areaRange];
area = [NSString stringWithFormat:@"(%@) ",area];
[resultString insertString:area atIndex:0];
}
if ([newString length] > localNumberMaxLength + areaCodeMaxLength) {
NSInteger countryCodeLength = MIN((int)[newString length] - localNumberMaxLength - areaCodeMaxLength, countryCodeMaxLength);
NSRange countryCodeRange = NSMakeRange(0, countryCodeLength);
NSString* countryCode = [newString substringWithRange:countryCodeRange];
countryCode = [NSString stringWithFormat:@"+%@ ",countryCode];
[resultString insertString:countryCode atIndex:0];
}
textField.text = resultString;
return NO;
}
【讨论】：
-
这个问题已经有几个答案，其中一些得到了很多赞。你至少应该解释为什么你认为你的答案增加了一些新的东西。
这是我使用 Swift 4 格式化多个类型 (123) 689-0987 的解决方案
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
guard let currentText:String = textField.text else {return true}
if string.rangeOfCharacter(from: CharacterSet.decimalDigits.inverted) != nil { return false }
let newCount:Int = currentText.count + string.count - range.length
let addingCharacter:Bool = range.length <= 0
if(newCount == 1){
textField.text = addingCharacter ? currentText + "(\(string)" : String(currentText.dropLast(2))
return false
}else if(newCount == 5){
textField.text = addingCharacter ? currentText + ") \(string)" : String(currentText.dropLast(2))
return false
}else if(newCount == 10){
textField.text = addingCharacter ? currentText + "-\(string)" : String(currentText.dropLast(2))
return false
}
if(newCount > 14){
return false
}
return true
}
【讨论】：
-
仅供参考，这打破了自动建议的使用。非常适合打字。
我使用这种格式 X (XXX) XXX XX XX 它在土耳其有效，
我将它与 TableView 和 Swift 4
一起使用func formatToPhoneNumber(withPhoneTextField: UITextField, tableTextField: UITextField, range: NSRange, string: String) -> Bool {
if (tableTextField == withPhoneTextField) {
let newString = (tableTextField.text! as NSString).replacingCharacters(in: range, with: string)
let components = newString.components(separatedBy: NSCharacterSet.decimalDigits.inverted)
let decimalString = components.joined(separator: "") as NSString
let length = decimalString.length
let hasLeadingOne = length > 0 && decimalString.character(at: 0) == (1 as unichar)
if length == 0 || (length > 11 && !hasLeadingOne) || length > 12 {
let newLength = (tableTextField.text! as NSString).length + (string as NSString).length - range.length as Int
return (newLength > 11) ? false : true
}
var index = 0 as Int
let formattedString = NSMutableString()
if hasLeadingOne {
formattedString.append("1 ")
index += 1
}
if (length - index) > 1{
let zeroNumber = decimalString.substring(with: NSMakeRange(index, 1))
formattedString.appendFormat("%@ ", zeroNumber)
index += 1
}
if (length - index) > 3 {
let areaCode = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("(%@) ", areaCode)
index += 3
}
if length - index > 3 {
let prefix = decimalString.substring(with: NSMakeRange(index, 3))
formattedString.appendFormat("%@ ", prefix)
index += 3
}
if (length - index) > 3{
let prefix = decimalString.substring(with: NSMakeRange(index, 2))
formattedString.appendFormat("%@ ", prefix)
index += 2
}
let remainder = decimalString.substring(from: index)
formattedString.append(remainder)
tableTextField.text = formattedString as String
return false
} else {
return true
}
}
你可以在
中调用这个函数func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String, indexPath: IndexPath) -> Bool {
}
在您的文本字段所在的任何 indexPath 中
例如我在 indexPath 编号 1 中的文本字段，所以代码将是
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String, indexPath: IndexPath) -> Bool {
if indexPath.row == 1 {
let phoneTextField = textField
return formatToPhoneNumber(withPhoneTextField: phoneTextField, tableTextField: textField, range: range, string: string)
}
}
【讨论】：