130 lines
5.3 KiB
Swift
130 lines
5.3 KiB
Swift
//
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// DDSpeechSynthesizer.swift
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// DDAudioPlayerKit_Private
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//
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// Created by 中道 on 2023/9/5.
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//
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import Foundation
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import AVFoundation
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public let DDSS = DDSpeechSynthesizer.default
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open class DDSpeechSynthesizer {
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public static let `default` = DDSpeechSynthesizer()
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private var items : [DDSpeechSynthesizerItem] = []
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public func play(text:String,name:String,numberOfLoops:Int = 1,timeInterval:TimeInterval = 0,eachLoopCompletionBlock: (() -> Void)? = nil, endCompletionBlock: (() -> Void)? = nil) {
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let item = DDSpeechSynthesizerItem(name: name)
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items.append(item)
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item.play(text: text,numberOfLoops:numberOfLoops,timeInterval:timeInterval,eachLoopCompletionBlock:eachLoopCompletionBlock,endCompletionBlock:endCompletionBlock)
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}
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public func stop(name:String) {
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if items.contains(where: { item in
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item.name == name
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}) == true {
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if let index = items.firstIndex(where: { item in
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item.name == name
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}) {
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let item = items[index]
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item.stop()
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items.remove(at: index)
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}
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}
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}
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}
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class DDSpeechSynthesizerItem: NSObject, AVSpeechSynthesizerDelegate {
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private var synthesizer : AVSpeechSynthesizer?
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private var utterance : AVSpeechUtterance?
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public var name : String
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private var numberOfLoops : Int = 0
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private var timeInterval : TimeInterval = 0
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private var eachLoopCompletionBlock : (() -> Void)?
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private var endCompletionBlock : (() -> Void)?
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init(name:String) {
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self.name = name
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}
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func play(text:String,numberOfLoops:Int,timeInterval:TimeInterval,eachLoopCompletionBlock: (() -> Void)?, endCompletionBlock: (() -> Void)?) {
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self.numberOfLoops = numberOfLoops
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self.timeInterval = timeInterval
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self.eachLoopCompletionBlock = eachLoopCompletionBlock
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self.endCompletionBlock = endCompletionBlock
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var broadcast = text
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for index in 0..<broadcast.count {
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let char = broadcast[broadcast.index(broadcast.startIndex, offsetBy: index)]
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if char == "0" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "零")
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}
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if char == "1" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "一")
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}
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if char == "2" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "二")
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}
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if char == "3" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "三")
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}
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if char == "4" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "四")
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}
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if char == "5" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "五")
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}
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if char == "6" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "六")
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}
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if char == "7" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "七")
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}
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if char == "8" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "八")
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}
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if char == "9" {
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broadcast.replaceSubrange(broadcast.index(broadcast.startIndex, offsetBy: index)...broadcast.index(broadcast.startIndex, offsetBy: index), with: "九")
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}
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}
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synthesizer = AVSpeechSynthesizer()
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synthesizer?.delegate = self
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utterance = AVSpeechUtterance(string: broadcast)
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utterance?.voice = AVSpeechSynthesisVoice(language: "zh-Hans")
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utterance?.rate = AVSpeechUtteranceDefaultSpeechRate
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if let utterance {
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synthesizer?.speak(utterance)
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}
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}
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public func speechSynthesizer(_ synthesizer: AVSpeechSynthesizer, didFinish utterance: AVSpeechUtterance) {
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if eachLoopCompletionBlock != nil {
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eachLoopCompletionBlock!()
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}
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numberOfLoops-=1
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if numberOfLoops == 0 {
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if endCompletionBlock != nil {
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endCompletionBlock!()
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}
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}else{
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DispatchQueue.global().asyncAfter(deadline: .now() + timeInterval, execute: {[weak self] in
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if let utterance = self?.utterance {
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self?.synthesizer?.speak(utterance)
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}
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})
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}
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}
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func stop() {
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synthesizer?.stopSpeaking(at: .immediate)
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synthesizer?.delegate = nil
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synthesizer = nil
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utterance = nil
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}
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}
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