Make notifications time zone agnostic (#354)

Author: bwernsman

README.md

@@ -341,6 +341,7 @@ request is an object containing:
 - `isCritical` : If true, the notification sound be played even when the device is locked, muted, or has Do Not Disturb enabled.
 - `criticalSoundVolume` : A number between 0 and 1 for volume of critical notification. Default volume will be used if not specified.
 - `userInfo` : An object containing additional notification data.
+- `isTimeZoneAgnostic` : If true, fireDate adjusted automatically upon time zone changes (e.g. for an alarm clock).
 
 request.repeatsComponent is an object containing (each field is optionnal):
 

ios/RCTConvert+Notification.m

@@ -35,6 +35,7 @@ + (UILocalNotification *)UILocalNotification:(id)json
 {
     NSDictionary<NSString *, id> *details = [self NSDictionary:json];
     BOOL isSilent = [RCTConvert BOOL:details[@"isSilent"]];
+    BOOL isTimeZoneAgnostic = [RCTConvert BOOL:details[@"isTimeZoneAgnostic"]];
     UILocalNotification *notification = [UILocalNotification new];
     notification.alertTitle = [RCTConvert NSString:details[@"alertTitle"]];
     notification.fireDate = [RCTConvert NSDate:details[@"fireDate"]] ?: [NSDate date];
@@ -49,6 +50,9 @@ + (UILocalNotification *)UILocalNotification:(id)json
     if (!isSilent) {
         notification.soundName = [RCTConvert NSString:details[@"soundName"]] ?: UILocalNotificationDefaultSoundName;
     }
+    if (isTimeZoneAgnostic) {
+        notification.timeZone = [NSTimeZone defaultTimeZone];
+    }
     return notification;
 }
 

js/types.js

@@ -74,6 +74,10 @@ export type NotificationRequest = {|
    * Optional data to be added to the notification
    */
   userInfo?: Object,
+  /**
+   * FireDate adjusted automatically upon time zone changes (e.g. for an alarm clock).
+   */
+  isTimeZoneAgnostic?: boolean,
 |};
 
 /**