ProgressBar
Displays horizontal progress bar.

Example usage:
import { ProgressBar } from 'react-native-ios-kit';
<ProgressBar progress={this.state.progress} />
Theme
Uses following theme properties:
primaryColor- color of the progress bar.
Props
progress
type: number (in range from 0 to 1)
Current value of progress.
theme (optional)
type: Theme
Custom theme for component. By default provided by the ThemeProvider.