任务
进行带有电话号码验证的电话呼叫。
详情
测试环境:
- Swift 5.2, Xcode 11.4 (11E146)
解决方案
class DataDetector {
private class func _find(all type: NSTextCheckingResult.CheckingType,
in string: String, iterationClosure: (String) -> Bool) {
guard let detector = try? NSDataDetector(types: type.rawValue) else { return }
let range = NSRange(string.startIndex ..< string.endIndex, in: string)
let matches = detector.matches(in: string, options: [], range: range)
loop: for match in matches {
for i in 0 ..< match.numberOfRanges {
let nsrange = match.range(at: i)
let startIndex = string.index(string.startIndex, offsetBy: nsrange.lowerBound)
let endIndex = string.index(string.startIndex, offsetBy: nsrange.upperBound)
let range = startIndex..<endIndex
guard iterationClosure(String(string[range])) else { break loop }
}
}
}
class func find(all type: NSTextCheckingResult.CheckingType, in string: String) -> [String] {
var results = [String]()
_find(all: type, in: string) {
results.append($0)
return true
}
return results
}
class func first(type: NSTextCheckingResult.CheckingType, in string: String) -> String? {
var result: String?
_find(all: type, in: string) {
result = $0
return false
}
return result
}
}
struct PhoneNumber {
private(set) var number: String
init?(extractFrom string: String) {
guard let phoneNumber = PhoneNumber.first(in: string) else { return nil }
self = phoneNumber
}
private init (string: String) { self.number = string }
func makeACall() {
guard let url = URL(string: "tel://\(number.onlyDigits())"),
UIApplication.shared.canOpenURL(url) else { return }
if #available(iOS 10, *) {
UIApplication.shared.open(url)
} else {
UIApplication.shared.openURL(url)
}
}
static func extractAll(from string: String) -> [PhoneNumber] {
DataDetector.find(all: .phoneNumber, in: string)
.compactMap { PhoneNumber(string: $0) }
}
static func first(in string: String) -> PhoneNumber? {
guard let phoneNumberString = DataDetector.first(type: .phoneNumber, in: string) else { return nil }
return PhoneNumber(string: phoneNumberString)
}
}
extension PhoneNumber: CustomStringConvertible { var description: String { number } }
extension String {
func onlyDigits() -> String {
let filtredUnicodeScalars = unicodeScalars.filter { CharacterSet.decimalDigits.contains($0) }
return String(String.UnicodeScalarView(filtredUnicodeScalars))
}
var detectedPhoneNumbers: [PhoneNumber] { PhoneNumber.extractAll(from: self) }
var detectedFirstPhoneNumber: PhoneNumber? { PhoneNumber.first(in: self) }
}
使用方法
PhoneNumber(extractFrom: "+1-(800)-123-4567")?.makeACall()
PhoneNumber.extractAll(from: "+1-(800)-123-4567 bla bla 1(617)111-22-33").last?.makeACall()
PhoneNumber.first(in: "+1-(800)-123-4567 bla bla 1(617)111-22-33")?.makeACall()
"+1-(800)-123-4567 bla bla 1(617)111-22-33".detectedPhoneNumbers[1].makeACall()
"+1-(800)-123-4567 bla bla 1(617)111-22-33".detectedFirstPhoneNumber?.makeACall()
完整示例
不要忘记在此处粘贴解决方案代码
func test() {
isPhone("blabla")
isPhone("+1(222)333-44-55")
isPhone("+42 555.123.4567")
isPhone("+1-(800)-123-4567")
isPhone("+7 555 1234567")
isPhone("+7(926)1234567")
isPhone("(926) 1234567")
isPhone("+79261234567")
isPhone("926 1234567")
isPhone("9261234567")
isPhone("1234567")
isPhone("123-4567")
isPhone("123-89-01")
isPhone("495 1234567")
isPhone("469 123 45 67")
isPhone("8 (926) 1234567")
isPhone("89261234567")
isPhone("926.123.4567")
isPhone("415-555-1234")
isPhone("650-555-2345")
isPhone("(416)555-3456")
isPhone("202 555 4567")
isPhone("4035555678")
isPhone(" 1 416 555 9292")
isPhone("1(617)111-22-33!")
isPhone("+44 1838 300284")
isPhone("+44 1838 300284, 1 416 555 9292")
isPhone("+44 1838 3d0384, 1 416 555 9292!")
}
private func isPhone(_ string: String) {
let phoneNumbers = PhoneNumber.extractAll(from: string)
let result = !phoneNumbers.isEmpty
print("\(result ? "✅" : "❌") \(string) | detected phones: \(phoneNumbers)")
}
结果
❌ blabla | detected phones: []
✅ +1(222)333-44-55 | detected phones: [+1(222)333-44-55]
✅ +42 555.123.4567 | detected phones: [555.123.4567]
✅ +1-(800)-123-4567 | detected phones: [+1-(800)-123-4567]
✅ +7 555 1234567 | detected phones: [+7 555 1234567]
✅ +7(926)1234567 | detected phones: [+7(926)1234567]
✅ (926) 1234567 | detected phones: [(926) 1234567]
✅ +79261234567 | detected phones: [+79261234567]
✅ 926 1234567 | detected phones: [926 1234567]
✅ 9261234567 | detected phones: [9261234567]
✅ 1234567 | detected phones: [1234567]
✅ 123-4567 | detected phones: [123-4567]
✅ 123-89-01 | detected phones: [123-89-01]
✅ 495 1234567 | detected phones: [495 1234567]
✅ 469 123 45 67 | detected phones: [469 123 45 67]
✅ 8 (926) 1234567 | detected phones: [8 (926) 1234567]
✅ 89261234567 | detected phones: [89261234567]
✅ 926.123.4567 | detected phones: [926.123.4567]
✅ 415-555-1234 | detected phones: [415-555-1234]
✅ 650-555-2345 | detected phones: [650-555-2345]
✅ (416)555-3456 | detected phones: [(416)555-3456]
✅ 202 555 4567 | detected phones: [202 555 4567]
✅ 4035555678 | detected phones: [4035555678]
✅ 1 416 555 9292 | detected phones: [1 416 555 9292]
✅ 1(617)111-22-33! | detected phones: [1(617)111-22-33]
✅ +44 1838 300284 | detected phones: [+44 1838 300284]
✅ +44 1838 300284, 1 416 555 9292 | detected phones: [+44 1838 300284, 1 416 555 9292]
✅ +44 1838 3d0384, 1 416 555 9292! | detected phones: [1 416 555 9292]