Fix for React Native 63, allows UIManager to be used with the new replacemnt for currentlyFocusedInput

main.js

//Replace all currentlyFocusedField with currentlyFocusedInput

import {
  findNodeHandle,
  UIManager,
  TextInput,
} from 'react-native';

const currentlyFocusedField = findNodeHandle(TextInput.State.currentlyFocusedInput());

UIManager.measure(currentlyFocusedField, (originX, originY, width, height, pageX, pageY);

//Not a full example of animation, but I have to get back to work. Hope this helps