Accessibilityinfo is an API provided by React Native to help you get the the current various statuses of the user device for both android and IOS . And track it as they change. Currently the Accessibilityinfo supports tracking the BoldText, Grayscale, InvertedColors, ReduceTransparency and ScreenReader.
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reactTag is simply a number that is used by react to identify view objects in your application . It is the result of findNodeHandle function, which takes a view reference as parameter.
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