我有以下面具集:
self.login.affineFormats = [
"{+7} ([000]) [000] [00] [00]",
"{8} ([000]) [000]-[00]-[00]"
]
当我输入带有 +7 掩码的电话号码,然后编辑 ([000]) 掩码中的值时,掩码切换为 8 而不是 +7,然后将 7 放入 ([000])
一旦使用任何掩码初始化,也许有一种方法可以在 textField 中“锁定”掩码?
嗨@MrJox ,感谢您的报告。
发生此错误时,您能否提供文本字段中文本的确切状态?
我将能够在今天晚些时候追踪它,然后帮助您解决问题。
不完全确定您所说的状态是什么意思,但会发生以下情况:
我有一个从缓存中读取并插入到 textField 的电话号码(这是一个自定义的 JVFloat textField)。
电话号码是 +7 (926) 000-00-00,然后我将指针设置在“2”之后并删除该号码。 结果,我的 textView 内容转换为 8 (796) 000-00-00。
因此,出于某种原因,它删除了 + 并将 7 视为电话号码的实际部分而不是掩码,并将其放入括号中,然后添加 8 掩码。
是的,你的描述对我有用,谢谢!
敬请关注。
@MrJox虽然我正在处理我们上次库更新所需的一些改进和修复,但我已经为您的问题提供了一个快速解决方案。
实际上,这是使用自定义亲和力计算方法的PolyMaskTextFieldDelegate
修改。 此方法不是与掩码的整体文本亲和性,而是比较前缀交集的长度,即字符数。
此代码或其修改版本最终可能会找到库源。
import Foundation
import UIKit
import InputMask
<strong i="10">@IBDesignable</strong>
class PrefixAffinityMaskedTextFieldDelegate: MaskedTextFieldDelegate {
public var affineFormats: [String]
public init(primaryFormat: String, affineFormats: [String]) {
self.affineFormats = affineFormats
super.init(format: primaryFormat)
}
public override init(format: String) {
self.affineFormats = []
super.init(format: format)
}
override open func put(text: String, into field: UITextField) {
let mask: Mask = pickMask(
forText: text,
caretPosition: text.endIndex,
autocomplete: autocomplete
)
let result: Mask.Result = mask.apply(
toText: CaretString(
string: text,
caretPosition: text.endIndex
),
autocomplete: autocomplete
)
field.text = result.formattedText.string
field.caretPosition = result.formattedText.string.distance(
from: result.formattedText.string.startIndex,
to: result.formattedText.caretPosition
)
listener?.textField?(field, didFillMandatoryCharacters: result.complete, didExtractValue: result.extractedValue)
}
override open func deleteText(inRange range: NSRange, inTextInput field: UITextInput) -> Mask.Result {
let text: String = replaceCharacters(
inText: field.allText,
range: range,
withCharacters: ""
)
let mask: Mask = pickMask(
forText: text,
caretPosition: text.index(text.startIndex, offsetBy: range.location),
autocomplete: false
)
let result: Mask.Result = mask.apply(
toText: CaretString(
string: text,
caretPosition: text.index(text.startIndex, offsetBy: range.location)
),
autocomplete: false
)
field.allText = result.formattedText.string
field.caretPosition = range.location
return result
}
override open func modifyText(
inRange range: NSRange,
inTextInput field: UITextInput,
withText text: String
) -> Mask.Result {
let updatedText: String = replaceCharacters(
inText: field.allText,
range: range,
withCharacters: text
)
let mask: Mask = pickMask(
forText: updatedText,
caretPosition: updatedText.index(updatedText.startIndex, offsetBy: field.caretPosition + text.count),
autocomplete: autocomplete
)
let result: Mask.Result = mask.apply(
toText: CaretString(
string: updatedText,
caretPosition: updatedText.index(updatedText.startIndex, offsetBy: field.caretPosition + text.count)
),
autocomplete: autocomplete
)
field.allText = result.formattedText.string
field.caretPosition = result.formattedText.string.distance(
from: result.formattedText.string.startIndex,
to: result.formattedText.caretPosition
)
return result
}
func pickMask(forText text: String, caretPosition: String.Index, autocomplete: Bool) -> Mask {
let primaryAffinity: Int = calculateAffinity(
ofMask: mask,
forText: text,
caretPosition: caretPosition,
autocomplete: autocomplete
)
var masks: [(Mask, Int)] = affineFormats.map { (affineFormat: String) -> (Mask, Int) in
let mask: Mask = try! Mask.getOrCreate(withFormat: affineFormat, customNotations: customNotations)
let affinity: Int = calculateAffinity(
ofMask: mask,
forText: text,
caretPosition: caretPosition,
autocomplete: autocomplete
)
return (mask, affinity)
}
masks.sort { (left: (Mask, Int), right: (Mask, Int)) -> Bool in
return left.1 > right.1
}
var insertIndex: Int = -1
for (index, maskAffinity) in masks.enumerated() {
if primaryAffinity >= maskAffinity.1 {
insertIndex = index
break
}
}
if (insertIndex >= 0) {
masks.insert((mask, primaryAffinity), at: insertIndex)
} else {
masks.append((mask, primaryAffinity))
}
return masks.first!.0
}
func calculateAffinity(
ofMask mask: Mask,
forText text: String,
caretPosition: String.Index,
autocomplete: Bool
) -> Int {
return mask.apply(
toText: CaretString(
string: text,
caretPosition: caretPosition
),
autocomplete: autocomplete
).formattedText.string.prefixIntersection(with: text).count
}
func replaceCharacters(inText text: String, range: NSRange, withCharacters newText: String) -> String {
if 0 < range.length {
let result = NSMutableString(string: text)
result.replaceCharacters(in: range, with: newText)
return result as String
} else {
let result = NSMutableString(string: text)
result.insert(newText, at: range.location)
return result as String
}
}
}
extension String {
func prefixIntersection(with string: String) -> Substring {
let lhsStartIndex = startIndex
var lhsEndIndex = startIndex
let rhsStartIndex = string.startIndex
var rhsEndIndex = string.startIndex
while (self[lhsStartIndex...lhsEndIndex] == string[rhsStartIndex...rhsEndIndex]) {
lhsEndIndex = lhsEndIndex != endIndex ? index(after: lhsEndIndex) : endIndex
rhsEndIndex = rhsEndIndex != string.endIndex ? string.index(after: rhsEndIndex) : endIndex
if (lhsEndIndex == endIndex || rhsEndIndex == string.endIndex) {
return self[lhsStartIndex..<lhsEndIndex]
}
}
return self[lhsStartIndex..<lhsEndIndex]
}
}
extension UITextInput {
var allText: String {
get {
guard let all: UITextRange = allTextRange
else { return "" }
return self.text(in: all) ?? ""
}
set(newText) {
guard let all: UITextRange = allTextRange
else { return }
self.replace(all, withText: newText)
}
}
var caretPosition: Int {
get {
if let responder = self as? UIResponder {
// Workaround for non-optional `beginningOfDocument`, which could actually be nil if field doesn't have focus
guard responder.isFirstResponder
else { return allText.count }
}
if let range: UITextRange = selectedTextRange {
let selectedTextLocation: UITextPosition = range.start
return offset(from: beginningOfDocument, to: selectedTextLocation)
} else {
return 0
}
}
set(newPosition) {
if let responder = self as? UIResponder {
// Workaround for non-optional `beginningOfDocument`, which could actually be nil if field doesn't have focus
guard responder.isFirstResponder
else { return }
}
if newPosition > allText.count {
return
}
let from: UITextPosition = position(from: beginningOfDocument, offset: newPosition)!
let to: UITextPosition = position(from: from, offset: 0)!
selectedTextRange = textRange(from: from, to: to)
}
}
var allTextRange: UITextRange? {
return self.textRange(from: self.beginningOfDocument, to: self.endOfDocument)
}
}
嗯,所以现在我这样做:
<strong i="6">@IBOutlet</strong> var loginListener: PrefixAffinityMaskedTextFieldDelegate!
但它仍然行不通。 我注意到,如果您使用 Del 键删除括号内的数字,则该数字将被删除,现在括号内的数字少一个,但是当我使用 Backspace 按钮删除时,它会放置/移动左侧的数字或右侧的数字所以括号内的位数保持不变。
我的意思是:
原件:+7 (916) 000-00-00
带删除键:+7 (96) 000-00-00
带退格键:8 (796) 000-00-00
更正:
现在它似乎可以工作但是当我尝试删除文本字段中的字符串时,我只剩下'+'字符,然后当我尝试删除它时我的应用程序崩溃了
线程 1:致命错误:不能超过 endIndex
@MrJox我不确定我是否理解正确。
请注意,iOS 上没有Del
键,只有Backspace
。 不要让虚拟键盘仿真欺骗您。
关于您的最后一个错误,您可以考虑针对边缘情况使用以下补丁:
extension String {
func prefixIntersection(with string: String) -> Substring {
guard !self.isEmpty && !string.isEmpty
else { return "" }
let lhsStartIndex = startIndex
var lhsEndIndex = startIndex
let rhsStartIndex = string.startIndex
var rhsEndIndex = string.startIndex
while (self[lhsStartIndex...lhsEndIndex] == string[rhsStartIndex...rhsEndIndex]) {
lhsEndIndex = lhsEndIndex != endIndex ? index(after: lhsEndIndex) : endIndex
rhsEndIndex = rhsEndIndex != string.endIndex ? string.index(after: rhsEndIndex) : endIndex
if (lhsEndIndex == endIndex || rhsEndIndex == string.endIndex) {
return self[lhsStartIndex..<lhsEndIndex]
}
}
return self[lhsStartIndex..<lhsEndIndex]
}
}
是的,它修复了它,谢谢!
@MrJox我将在下一次库更新时关闭此问题。
我正在考虑将其添加到库资源中作为替代策略。
@MrJox优化和简化版本:
extension String {
func prefixIntersection(with string: String) -> Substring {
var lhsIndex = startIndex
var rhsIndex = string.startIndex
while lhsIndex != endIndex && rhsIndex != string.endIndex {
if self[...lhsIndex] == string[...rhsIndex] {
lhsIndex = index(after: lhsIndex)
rhsIndex = string.index(after: rhsIndex)
} else {
return self[..<lhsIndex]
}
}
return self[..<lhsIndex]
}
}
4.0.0
包含此功能。
最有用的评论
是的,它修复了它,谢谢!