i. 初始化

VoiceRecognizer.shareInstance().setSilentTime(1000);
VoiceRecognizer.shareInstance().setListener((VoiceRecognizerListener)this);
if (VoiceRecognizer.shareInstance().init(this, screKey) != 0) {
//初始化失败
}

注：此处的screKey就是在官网上申请的应用授权码；对于语法识别将VoiceRecognizer 类替换成 VoiceRecognizerGrammar。