React-native-ui-kitten: useStyleSheet hook doesn't follow Hook rules

[nonameolsson]

🐛 Bug Report

Using the hook useStyleSheet with ESlint Hook rules doesn't work. The code works when disabling the rule with // eslint-disable-next-line react-hooks/rules-of-hooks.
https://reactjs.org/docs/hooks-rules.html#eslint-plugin

To Reproduce

1. Follow instructions in https://akveo.github.io/react-native-ui-kitten/docs/components/themed-component/overview#usestylesheet.

import React from 'react';
import {
  Layout,
  Text,
  useStyleSheet,
} from '@ui-kitten/components';

export const UseStyleSheetSimpleUsageShowcase = () => {
  const styles = StyleSheet.create();

  return (
    <Layout style={styles.container}>
      <Text category='h4' status='control'>
        I use success color as background!
      </Text>
    </Layout>
  );
};

const StyleSheet = useStyleSheet({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: 'color-success-default',
  },
});

Expected behavior

No warnings/errors should show up.

Link to runnable example or repository (highly encouraged)

UI Kitten and Eva version

| Package | Version |
| ----------- | ----------- |
| @eva-design/eva | 4.4.0-beta.2 |
| @ui-kitten/components | 4.4.0-beta.2 |

Environment information

  System:
    OS: macOS Mojave 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
  Binaries:
    Node: 12.13.1 - /usr/local/bin/node
    Yarn: 1.21.1 - ~/.yarn/bin/yarn
    npm: 6.13.6 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 13.0, DriverKit 19.0, macOS 10.15, tvOS 13.0, watchOS 6.0
  IDEs:
    Android Studio: 3.5 AI-191.8026.42.35.6010548
    Xcode: 11.0/11A420a - /usr/bin/xcodebuild
  npmPackages:
    react: 16.9.0 => 16.9.0
    react-native: https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz => 0.61.4
  npmGlobalPackages:
    react-native-cli: 2.0.1

[artyorsh]

This is why this version is beta.
There are few advices on how to make it better and currently we're looking for how to update it with less breaking changes

You can view conversation here: https://github.com/akveo/react-native-ui-kitten/pull/782

[nonameolsson]

Thanks! I should have searched amongst existing the issues more before creating this one.

[artyorsh]

Let's keep it open so we can track the progress. Thanks for reporting