87 lines
3.1 KiB
Swift
87 lines
3.1 KiB
Swift
//
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// PreferenceManager.swift
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// Funny_sounds
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//
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// Created by 忆海16 on 2024/8/27.
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//
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import Foundation
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import UIKit
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class PreferenceManager {
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static let shared = PreferenceManager()
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private let preferencesKey = "userPreferences" // 偏好设置的键值
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private init() {}
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// MARK: - 保存一个新的偏好设置
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func savePreference(_ preference: UserPreference) {
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var preferences = loadPreferences() ?? [UserPreference]()
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preferences.append(preference) // 将新偏好设置添加到数组中
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savePreferences(preferences) // 保存更新后的数组
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}
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// MARK: - 保存所有偏好设置
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private func savePreferences(_ preferences: [UserPreference]) {
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if let encodedPreferences = try? JSONEncoder().encode(preferences) {
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UserDefaults.standard.set(encodedPreferences, forKey: preferencesKey) // 将偏好设置数组保存到UserDefaults中
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}
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}
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// MARK: - 加载所有偏好设置
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func loadPreferences() -> [UserPreference]? {
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guard let savedData = UserDefaults.standard.data(forKey: preferencesKey),
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let preferences = try? JSONDecoder().decode([UserPreference].self, from: savedData) else {
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return nil // 如果未找到数据或解码失败，返回nil
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}
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return preferences // 返回偏好设置数组
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}
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// MARK: - 清除所有偏好设置
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func clearPreferences() {
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UserDefaults.standard.removeObject(forKey: preferencesKey) // 从UserDefaults中移除偏好设置
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}
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// MARK: - 保存音频
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func saveAudio(data: Data, fileName: String) -> Bool {
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let fileURL = getDocumentsDirectory().appendingPathComponent(fileName)
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do {
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try data.write(to: fileURL) // 将音频数据写入文件
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return true
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} catch {
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print("保存音频失败: \(error.localizedDescription)")
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return false
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}
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}
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// MARK: - 保存图片
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func saveImage(image: UIImage, fileName: String) -> Bool {
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guard let data = image.pngData() else { return false }
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let fileURL = getDocumentsDirectory().appendingPathComponent(fileName)
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do {
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try data.write(to: fileURL) // 将图片数据写入文件
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return true
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} catch {
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print("保存图片失败: \(error.localizedDescription)")
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return false
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}
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}
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// MARK: - 加载音频
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func loadAudio(fileName: String) -> Data? {
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let fileURL = getDocumentsDirectory().appendingPathComponent(fileName)
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return try? Data(contentsOf: fileURL) // 从文件中加载音频数据
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}
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// MARK: - 加载图片
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func loadImage(fileName: String) -> UIImage? {
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let fileURL = getDocumentsDirectory().appendingPathComponent(fileName)
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guard let data = try? Data(contentsOf: fileURL) else { return nil }
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return UIImage(data: data) // 从文件中加载图片数据
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}
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// MARK: - 获取文档目录路径
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private func getDocumentsDirectory() -> URL {
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return FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
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}
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}
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