[_iflyRecognizerView setParameter: @"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];

[_iflyRecognizerView setParameter: @"0" forKey:[IFlySpeechConstant ASR_PTT]];

//设置结果数据格式，可设置为json，xml，plain，默认为json。

[_iflyRecognizerView setParameter:@"plain" forKey:[IFlySpeechConstant RESULT_TYPE]];

[_iflyRecognizerView start];