React Native Navigation Splash

React Native Navigation 사용 중 스플래시 구현할 때 참고 medium

https://medium.com/@pqkluan/how-to-implement-splash-screen-in-react-native-navigation-ee2184a1a96

https://medium.com/handlebar-labs/how-to-add-a-splash-screen-to-a-react-native-app-ios-and-android-30a3cec835ae 

요 medium를 참고하여 진행했었으나, java.lang.UnsupportedOperationException: Can't convert to color: type=0x1 에러가  출력 됨.