Settings serves as a wrapper for NSUserDefaults, a persistent key-value store available only on iOS.

Example​

Reference

Methods​

clearWatch()​

staticclearWatch(watchId:number);

watchId is the number returned by watchKeys() when the subscription was originally configured.

get()​

staticget(key:string):any;

Get the current value for a given key in NSUserDefaults.

set()​

staticset(settings:Record<string,any>);

Set one or more values in NSUserDefaults.

watchKeys()​

staticwatchKeys(keys:string| array<string>,callback:()=>void):number;

Subscribe to be notified when the value for any of the keys specified by the keys parameter has been changed in NSUserDefaults. Returns a watchId number that may be used with clearWatch() to unsubscribe.

Note: watchKeys() by design ignores internal set() calls and fires callback only on changes preformed outside of React Native code.