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import SwiftUI
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import Foundation
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// MARK: - 通用工具函数
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// MARK: - 字符串扩展
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extension String {
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/// 检查字符串是否为有效的邮箱地址
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var isValidEmail: Bool {
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let emailRegex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
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let emailPredicate = NSPredicate(format: "SELF MATCHES %@", emailRegex)
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return emailPredicate.evaluate(with: self)
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}
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/// 检查字符串是否为有效的电话号码
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var isValidPhone: Bool {
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let phoneRegex = "^[+]?[0-9\\s\\-\\(\\)]{7,}$"
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let phonePredicate = NSPredicate(format: "SELF MATCHES %@", phoneRegex)
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return phonePredicate.evaluate(with: self)
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}
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/// 检查字符串是否为有效的URL
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var isValidURL: Bool {
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guard let url = URL(string: self) else { return false }
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return UIApplication.shared.canOpenURL(url)
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}
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/// 移除字符串两端的空白字符
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var trimmed: String {
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self.trimmingCharacters(in: .whitespacesAndNewlines)
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}
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/// 检查字符串是否为空或只包含空白字符
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var isEmptyOrWhitespace: Bool {
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self.trimmed.isEmpty
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}
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/// 获取字符串的字符数（不包括空白字符）
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var characterCount: Int {
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self.trimmed.count
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}
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/// 截取字符串到指定长度
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func truncated(to length: Int, suffix: String = "...") -> String {
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if self.count <= length {
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return self
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}
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let index = self.index(self.startIndex, offsetBy: length - suffix.count)
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return String(self[..<index]) + suffix
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}
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/// 添加URL协议前缀
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func withURLProtocol() -> String {
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if self.hasPrefix("http://") || self.hasPrefix("https://") {
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return self
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}
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return "https://" + self
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}
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}
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// MARK: - 日期扩展
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extension Date {
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/// 格式化日期为字符串
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func formattedString(style: DateFormatter.Style = .medium) -> String {
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let formatter = DateFormatter()
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formatter.dateStyle = style
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formatter.locale = Locale(identifier: "zh_CN")
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return formatter.string(from: self)
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}
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/// 格式化日期为时间字符串
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func formattedTimeString() -> String {
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let formatter = DateFormatter()
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formatter.timeStyle = .short
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formatter.locale = Locale(identifier: "zh_CN")
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return formatter.string(from: self)
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}
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/// 格式化日期为完整字符串
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func formattedFullString() -> String {
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let formatter = DateFormatter()
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formatter.dateStyle = .medium
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formatter.timeStyle = .short
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formatter.locale = Locale(identifier: "zh_CN")
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return formatter.string(from: self)
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}
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/// 检查日期是否为今天
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var isToday: Bool {
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Calendar.current.isDateInToday(self)
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}
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/// 检查日期是否为昨天
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var isYesterday: Bool {
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Calendar.current.isDateInYesterday(self)
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}
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/// 获取相对时间描述
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var relativeTimeDescription: String {
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let now = Date()
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let components = Calendar.current.dateComponents([.minute, .hour, .day], from: self, to: now)
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if let day = components.day, day > 0 {
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if day == 1 {
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return "yesterday".localized
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} else if day < 7 {
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return String(format: "days_ago".localized, day)
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} else {
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return self.formattedString(style: .short)
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}
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} else if let hour = components.hour, hour > 0 {
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return String(format: "hours_ago".localized, hour)
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} else if let minute = components.minute, minute > 0 {
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return String(format: "minutes_ago".localized, minute)
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} else {
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return "just_now".localized
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}
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}
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}
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// MARK: - 颜色扩展
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extension Color {
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/// 创建随机颜色
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static func random() -> Color {
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Color(
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red: Double.random(in: 0...1),
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green: Double.random(in: 0...1),
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blue: Double.random(in: 0...1)
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)
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}
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/// 创建系统颜色
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static let systemBackground = Color(.systemBackground)
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static let systemGroupedBackground = Color(.systemGroupedBackground)
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/// 创建语义颜色
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static let label = Color(.label)
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static let secondaryLabel = Color(.secondaryLabel)
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static let tertiaryLabel = Color(.tertiaryLabel)
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static let quaternaryLabel = Color(.quaternaryLabel)
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/// 创建系统颜色
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static let systemBlue = Color(.systemBlue)
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static let systemGreen = Color(.systemGreen)
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static let systemIndigo = Color(.systemIndigo)
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static let systemOrange = Color(.systemOrange)
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static let systemPink = Color(.systemPink)
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static let systemPurple = Color(.systemPurple)
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static let systemRed = Color(.systemRed)
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static let systemTeal = Color(.systemTeal)
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static let systemYellow = Color(.systemYellow)
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/// 创建系统灰色
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static let systemGray = Color(.systemGray)
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static let systemGray2 = Color(.systemGray2)
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static let systemGray3 = Color(.systemGray3)
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static let systemGray4 = Color(.systemGray4)
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static let systemGray5 = Color(.systemGray5)
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static let systemGray6 = Color(.systemGray6)
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}
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// MARK: - 视图扩展
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extension View {
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/// 添加圆角
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func roundedCorners(_ radius: CGFloat, corners: UIRectCorner = .allCorners) -> some View {
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clipShape(RoundedCorner(radius: radius, corners: corners))
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}
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/// 添加自定义阴影
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func customShadow(
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color: Color = .black.opacity(0.1),
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radius: CGFloat = 8,
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x: CGFloat = 0,
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y: CGFloat = 4
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) -> some View {
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self.shadow(color: color, radius: radius, x: x, y: y)
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}
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/// 添加边框
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func customBorder(
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_ color: Color,
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width: CGFloat = 1,
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cornerRadius: CGFloat = 0
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) -> some View {
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self.overlay(
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RoundedRectangle(cornerRadius: cornerRadius)
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.stroke(color, lineWidth: width)
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)
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}
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/// 添加自定义背景色
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func customBackground(_ color: Color, cornerRadius: CGFloat = 0) -> some View {
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self.background(
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RoundedRectangle(cornerRadius: cornerRadius)
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.fill(color)
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)
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}
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/// 隐藏键盘
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func hideKeyboard() {
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UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
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}
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}
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// MARK: - 自定义圆角形状
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struct RoundedCorner: Shape {
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var radius: CGFloat = .infinity
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var corners: UIRectCorner = .allCorners
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func path(in rect: CGRect) -> Path {
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let path = UIBezierPath(
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roundedRect: rect,
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byRoundingCorners: corners,
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cornerRadii: CGSize(width: radius, height: radius)
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)
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return Path(path.cgPath)
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}
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}
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// MARK: - 通用验证函数
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struct ValidationHelper {
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/// 验证邮箱地址
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static func isValidEmail(_ email: String) -> Bool {
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email.isValidEmail
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}
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/// 验证电话号码
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static func isValidPhone(_ phone: String) -> Bool {
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phone.isValidPhone
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}
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/// 验证URL
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static func isValidURL(_ url: String) -> Bool {
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url.isValidURL
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}
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/// 验证必填字段
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static func isRequiredFieldValid(_ field: String) -> Bool {
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!field.isEmptyOrWhitespace
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}
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/// 验证字符长度
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static func isLengthValid(_ text: String, min: Int, max: Int) -> Bool {
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let count = text.characterCount
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return count >= min && count <= max
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}
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/// 验证密码强度
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static func getPasswordStrength(_ password: String) -> PasswordStrength {
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var score = 0
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if password.count >= 8 { score += 1 }
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if password.range(of: "[a-z]", options: .regularExpression) != nil { score += 1 }
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if password.range(of: "[A-Z]", options: .regularExpression) != nil { score += 1 }
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if password.range(of: "[0-9]", options: .regularExpression) != nil { score += 1 }
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if password.range(of: "[^a-zA-Z0-9]", options: .regularExpression) != nil { score += 1 }
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switch score {
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case 0...1:
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return .weak
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case 2...3:
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return .medium
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case 4...5:
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return .strong
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default:
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return .weak
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}
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}
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}
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// MARK: - 密码强度枚举
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enum PasswordStrength {
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case weak
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case medium
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case strong
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var description: String {
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switch self {
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case .weak:
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return "weak".localized
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case .medium:
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return "medium".localized
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case .strong:
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return "strong".localized
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}
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}
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var color: Color {
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switch self {
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case .weak:
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return .red
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case .medium:
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return .orange
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case .strong:
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return .green
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}
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}
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}
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// MARK: - 通用格式化函数
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struct FormatHelper {
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/// 格式化文件大小
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static func formatFileSize(_ bytes: Int64) -> String {
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let formatter = ByteCountFormatter()
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formatter.allowedUnits = [.useKB, .useMB, .useGB]
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formatter.countStyle = .file
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return formatter.string(fromByteCount: bytes)
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}
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/// 格式化数字
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static func formatNumber(_ number: Int) -> String {
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let formatter = NumberFormatter()
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formatter.numberStyle = .decimal
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return formatter.string(from: NSNumber(value: number)) ?? "\(number)"
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}
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/// 格式化百分比
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static func formatPercentage(_ value: Double) -> String {
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let formatter = NumberFormatter()
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formatter.numberStyle = .percent
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formatter.minimumFractionDigits = 1
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formatter.maximumFractionDigits = 1
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return formatter.string(from: NSNumber(value: value)) ?? "\(value * 100)%"
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}
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/// 格式化货币
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static func formatCurrency(_ amount: Double, locale: Locale = .current) -> String {
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let formatter = NumberFormatter()
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formatter.numberStyle = .currency
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formatter.locale = locale
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return formatter.string(from: NSNumber(value: amount)) ?? "\(amount)"
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}
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}
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// MARK: - 通用动画函数
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struct AnimationHelper {
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/// 弹性动画
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static let spring = Animation.spring(response: 0.5, dampingFraction: 0.8, blendDuration: 0)
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/// 缓入动画
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static let easeIn = Animation.easeIn(duration: 0.3)
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/// 缓出动画
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static let easeOut = Animation.easeOut(duration: 0.3)
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/// 缓入缓出动画
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static let easeInOut = Animation.easeInOut(duration: 0.3)
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/// 线性动画
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static let linear = Animation.linear(duration: 0.3)
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}
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// MARK: - 通用反馈函数
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struct FeedbackHelper {
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/// 轻触反馈
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static func lightImpact() {
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let impactFeedback = UIImpactFeedbackGenerator(style: .light)
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impactFeedback.impactOccurred()
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}
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/// 中等触反馈
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static func mediumImpact() {
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let impactFeedback = UIImpactFeedbackGenerator(style: .medium)
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impactFeedback.impactOccurred()
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}
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/// 重触反馈
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static func heavyImpact() {
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let impactFeedback = UIImpactFeedbackGenerator(style: .heavy)
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impactFeedback.impactOccurred()
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}
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/// 成功反馈
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static func success() {
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let notificationFeedback = UINotificationFeedbackGenerator()
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notificationFeedback.notificationOccurred(.success)
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}
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/// 警告反馈
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static func warning() {
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let notificationFeedback = UINotificationFeedbackGenerator()
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notificationFeedback.notificationOccurred(.warning)
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}
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/// 错误反馈
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static func error() {
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let notificationFeedback = UINotificationFeedbackGenerator()
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notificationFeedback.notificationOccurred(.error)
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}
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} |
