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react-native-web/docs/guides/internationalization.md
Nicolas Gallagher 10ef2bfe20 [fix] i18n styles 
1. Fix auto-flipping of styles

The StyleRegistry didn't account for LTR/RTL when caching the results of
style resolution. The 'writingDirection' style is no longer flipped; no
clear use case for it.

2. Remove experimental '$noI18n' style prop suffix

This feature is essentially unused, and less likely to be used with the
introduction of 'dir=auto' on 'Text'. Removing also marginally improves
render performance.
2017-02-17 13:25:54 -08:00

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Internationalization

To support right-to-left languages, application layout can be automatically flipped from LTR to RTL. The I18nManager API can be used to help with more fine-grained control and testing of RTL layouts.

Working with icons and images

Icons and images that must match the LTR or RTL layout of the app need to be manually flipped.

Either use a transform style:

<Image
  source={...}
  style={{ transform: [{ scaleX: I18nManager.isRTL ? -1 : 1 }] }}
/>

Or replace the source asset:

import imageSourceLTR from './back.png';
import imageSourceRTL from './forward.png';

<Image
  source={I18nManager.isRTL ? imageSourceRTL : imageSourceLTR}
/>