feat(ios): adding openAppNotificationsSettings function

Author: Stringsaeed

ios/NotificationsUtils.m

@@ -2,9 +2,7 @@
 
 @interface RCT_EXTERN_MODULE(NotificationsUtils, NSObject)
 
-RCT_EXTERN_METHOD(multiply:(float)a withB:(float)b
-                 withResolver:(RCTPromiseResolveBlock)resolve
-                 withRejecter:(RCTPromiseRejectBlock)reject)
+RCT_EXTERN_METHOD(openAppNotificationsSettings)
 
 + (BOOL)requiresMainQueueSetup
 {

ios/NotificationsUtils.swift

@@ -1,8 +1,26 @@
+import UIKit
+
 @objc(NotificationsUtils)
 class NotificationsUtils: NSObject {
+  func openURL(_ url: URL) -> Void {
+    if #available(iOS 10.0, *){
+      UIApplication.shared.open(url)
+    } else {
+      UIApplication.shared.openURL(url)
+    }
+  }
+
+  @objc(openAppNotificationsSettings)
+  func openAppNotificationsSettings() -> Void {
+    let settingsURLString: String;
+    if #available(iOS 16.0, *) {
+      settingsURLString = UIApplication.openNotificationSettingsURLString
+    } else if #available(iOS 15.4, *) {
+      settingsURLString = UIApplicationOpenNotificationSettingsURLString
+    } else {
+      settingsURLString =  UIApplication.openSettingsURLString
+    }
 
-  @objc(multiply:withB:withResolver:withRejecter:)
-  func multiply(a: Float, b: Float, resolve:RCTPromiseResolveBlock,reject:RCTPromiseRejectBlock) -> Void {
-    resolve(a*b)
+    openURL(URL.init(string: settingsURLString)!)
   }
 }