OpenAppSettings.m

#import <UIKit/UIKit.h>
#import "OpenAppSettings.h"


@implementation OpenAppSettings

RCT_EXPORT_MODULE();

RCT_EXPORT_METHOD(openSettings)
{
  [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
}

@end

jsfile.js

import { NativeModules,Platform } from 'react-native';
var OpenAppSettings = NativeModules.OpenAppSettings;
//if module doesn't exist.
var openSettingsFn = ()=>{

}
if(OpenAppSettings && typeof OpenAppSettings.openSettings == "function")
{
  openSettingsFn = OpenAppSettings.openSettings;
}
//call openSettingsFn() at some event to trigger native call.

OpenAppSettings.h

#import "RCTBridgeModule.h"
#ifndef OpenAppSettings_h
#define OpenAppSettings_h

@interface OpenAppSettings : NSObject <RCTBridgeModule>
@end

#endif /* OpenAppSettings_h */