I am making a language app that records any new vocabulary a user is trying to learn. It would be great if users can add their words via a speech to text program, instead of having to enter it manually. I am having trouble achieving this task. I am aware that there is an API for apple but not android. Is there anyway possible of doing this, using an API? Like for instance, google speech to text API? But I guess I would first have to be able to access the device's microphone. I am a beginner and this would be very easy using the web. Is React Native still too young for this task?
You might wanna look at react-native-android-voice, a React Native module that supports speech-to-text for Android.
As @delkant mentioned, there's now also react-native-voice that supports both Android and iOS.
Alternatively, you can always write your custom native module using Android's SpeechRecognizer API. Here's a summary of all the classes and interfaces you might need for this task. If you are familiar with developing native Android apps, it's pretty easy to create a native module and bind it to your React Native project. Here's the official documentation of how to achieve this.
You also have react-native-voice
A speech-to-text library for React Native.
It supports android and iOS
The react-native-bluemix module provides both SpeechToText and TextToSpeech for React Native: https://github.com/pwcremin/react-native-bluemix
It wraps the Watson tools for both ios and android: https://github.com/watson-developer-cloud
来源：https://stackoverflow.com/questions/40060820/react-native-speech-to-text