transform code

ref: https://facebook.github.io/react-native/docs/native-modules-android.html

ReadableMap

javascript sample code:

NativeModules.NativeClass.getReadableMap({"phone": userCount}, (error)=> {

});

java sample code:

@ReactMethod
public void getReadableMap(ReadableMap map, Callback callback)
{
    String phone = map.getString("phone");
    callback.invoke();
}

WritableMap

java sample code:

@ReactMethod
public void getWritableMap(Callback callback) {

    WritableMap result = new WritableNativeMap();
    result.putString("nickName", "jerome(from android code)");
    callback.invoke(result);
}

javascript sample code:

NativeModules.NativeClass.getWritableMap((userInfoObj)=> {

});