iOS端调用的文字转语音并监听播报完毕

if (uni.getSystemInfoSync().platform == "ios") {  

    var AVAudioSession = plus.ios.importClass("AVAudioSession");  
    var AVSpeechSynthesizer = plus.ios.importClass("AVSpeechSynthesizer");  
    var AVSpeechUtterance = plus.ios.importClass("AVSpeechUtterance");  
    var AVSpeechSynthesisVoice = plus.ios.importClass("AVSpeechSynthesisVoice");  

    AVAudioSession.sharedInstance().setCategoryerror("AVAudioSessionCategoryPlayback", null);  

    var sppech = new AVSpeechSynthesizer();  

    var utterance = AVSpeechUtterance.speechUtteranceWithString("你的文字");  
    var voice = AVSpeechSynthesisVoice.voiceWithLanguage("zh-CN");  

    utterance.plusSetAttribute("voice",voice);  
    utterance.plusSetAttribute("rate", 0.65);// 0.65为速度，越大播报速度越快  

    sppech.speakUtterance(utterance);  

    // 监听播报完毕  
    var delegate = plus.ios.implements("AVSpeechSynthesizerDelegate", {  
        "speechSynthesizer:didFinishSpeechUtterance:":function(synthesizer,utterance){  

            console.log("播报完");  

        }  
    })  

    sppech.plusSetAttribute("delegate", delegate);  

}