feat: add threadIdentifier for local notification

example/App.js

@@ -108,6 +108,7 @@ export const App = () => {
       subtitle: 'subtitle',
       body: 'body',
       category: 'test',
+      threadId: 'thread-id',
       fireDate: new Date(new Date().valueOf() + 2000),
       repeats: true,
     });
@@ -220,6 +221,7 @@ export const App = () => {
       `Alert title:  ${notification.getTitle()},
       Alert subtitle:  ${notification.getSubtitle()},
       Alert message:  ${notification.getMessage()},
+      Thread Id:  ${notification.getThreadID()},
       Action Id:  ${notification.getActionIdentifier()},
       User Text:  ${notification.getUserText()},
       Notification is clicked: ${String(isClicked)}.`,

index.d.ts

@@ -159,6 +159,10 @@ export type NotificationRequest = {
    * The category of this notification. Required for actionable notifications.
    */
   category?: string;
+  /**
+   * The thread identifier of this notification.
+   */
+  threadId?: string;
   /**
    * The date which notification triggers.
    */

ios/RNCPushNotificationIOS.m

@@ -95,6 +95,12 @@ + (UNNotificationRequest *)UNNotificationRequest:(id)json
     content.body =[RCTConvert NSString:details[@"body"]];
     content.badge = [RCTConvert NSNumber:details[@"badge"]];
     content.categoryIdentifier = [RCTConvert NSString:details[@"category"]];
+
+    NSString* threadIdentifier = [RCTConvert NSString:details[@"threadId"]];
+    if (threadIdentifier){
+        content.threadIdentifier = threadIdentifier;
+    }
+
     content.userInfo = [RCTConvert NSDictionary:details[@"userInfo"]];
     if (!isSilent) {
       content.sound = [RCTConvert NSString:details[@"sound"]] ? [UNNotificationSound soundNamed:[RCTConvert NSString:details[@"sound"]]] : [UNNotificationSound defaultSound];

js/index.js

@@ -481,6 +481,7 @@ class PushNotificationIOS {
       this._alert = nativeNotif.body;
       this._title = nativeNotif?.title;
       this._subtitle = nativeNotif?.subtitle;
+      this._threadID = nativeNotif['thread-id'];
       this._data = nativeNotif.userInfo;
       this._category = nativeNotif.category;
       this._fireDate = nativeNotif.fireDate;

js/types.js

@@ -28,6 +28,10 @@ export type NotificationRequest = {
    * The category of this notification. Required for actionable notifications.
    */
   category?: string,
+  /**
+   * The thread identifier of this notification.
+   */
+  threadId?: string,
   /**
    * The date which notification triggers.
    */