**注：在线语法识别服务已下线，新用户无法使用。**
~~~
//1.创建SpeechRecognizer对象
SpeechRecognizer mAsr = SpeechRecognizer.createRecognizer( );
// ABNF语法示例，可以说”北京到上海”
String mCloudGrammar = "#ABNF 1.0 UTF-8;
languagezh-CN;
mode voice;
root $main;
$main = $place1 到$place2 ;
$place1 = 北京 | 武汉 | 南京 | 天津 | 天京 | 东京;
$place2 = 上海 | 合肥; ";
//2.构建语法文件
mAsr.setParameter(SpeechConstant.TEXT_ENCODING, "utf-8");
ret = mAsr.buildGrammar("abnf", mCloudGrammar , grammarListener);
if (ret != ErrorCode.SUCCESS){
DebugLog.Log("语法构建失败,错误码：" + ret);
}else{
DebugLog.Log("语法构建成功");
}
//3.开始识别,设置引擎类型为云端
mAsr.setParameter(SpeechConstant.ENGINE_TYPE, "cloud");
//设置grammarId
mAsr.setParameter(SpeechConstant.CLOUD_GRAMMAR, grammarId);
mAsr.startListening(mRecognizerListener);
if (ret != ErrorCode.SUCCESS) {
DebugLog.Log("识别失败,错误码: " + ret);
}
//构建语法监听器
private GrammarListener grammarListener = new GrammarListener() {
@Override
public void onBuildFinish(String grammarId, SpeechError error) {
if(error == null && !TextUtils.isEmpty(grammarId) ){
//构建语法成功，请保存grammarId用于识别
}else{
DebugLog.Log("语法构建失败,错误码：" + error.getErrorCode());
}
}
};
~~~
