Add properties for sound type support

Author: aurimasc

com.unity.mobile.notifications/Runtime/iOS/Plugins/UnityNotificationData.h

@@ -17,6 +17,14 @@ enum triggerType
     UNKNOWN_TRIGGER = -1,
 };
 
+enum UnitySoundType
+{
+    kSoundTypeDefault = 0,
+    kSoundTypeCritical = 1,
+    kSoundTypeRingtone = 2,
+    kSoundTypeNone = 4,
+};
+
 typedef struct iOSNotificationData
 {
     char* identifier;
@@ -26,6 +34,9 @@ typedef struct iOSNotificationData
     char* subtitle;
     char* categoryIdentifier;
     char* threadIdentifier;
+    int soundType;
+    float soundVolume;
+    char* soundName;
 
     void* userInfo;
     void* attachments;

com.unity.mobile.notifications/Runtime/iOS/Plugins/UnityNotificationData.m

@@ -78,6 +78,9 @@ void initiOSNotificationData(iOSNotificationData* notificationData)
     notificationData->subtitle = NULL;
     notificationData->categoryIdentifier = NULL;
     notificationData->threadIdentifier = NULL;
+    notificationData->soundType = kSoundTypeDefault;
+    notificationData->soundVolume = -1.0f;
+    notificationData->soundName = NULL;
     notificationData->triggerType = PUSH_TRIGGER;
     notificationData->userInfo = NULL;
 }
@@ -201,6 +204,9 @@ void freeiOSNotificationData(iOSNotificationData* notificationData)
     if (notificationData->threadIdentifier != NULL)
         free(notificationData->threadIdentifier);
 
+    if (notificationData->soundName != NULL)
+        free(notificationData->soundName);
+
     if (notificationData->userInfo != NULL)
     {
         NSDictionary* userInfo = (__bridge_transfer NSDictionary*)notificationData->userInfo;

com.unity.mobile.notifications/Runtime/iOS/iOSNotification.cs

@@ -32,6 +32,34 @@ public enum PresentationOption
         Alert = 1 << 2,
     }
 
+    /// <summary>
+    /// The type of sound to use for the notification.
+    /// See Apple documentation for details.
+    /// </summary>
+    /// <see href="https://developer.apple.com/documentation/usernotifications/unnotificationsound?language=objc"/>
+    public enum NotificationSoundType
+    {
+        /// <summary>
+        /// Play the default sound.
+        /// </summary>
+        Default = 0,
+
+        /// <summary>
+        /// Critical sound (bypass Do Not Disturb)
+        /// </summary>
+        Critical = 1,
+
+        /// <summary>
+        /// Ringtone sound.
+        /// </summary>
+        Ringtone = 2,
+
+        /// <summary>
+        /// No sound.
+        /// </summary>
+        None = 4,
+    }
+
     [StructLayout(LayoutKind.Sequential)]
     internal struct TimeTriggerData
     {
@@ -82,6 +110,9 @@ internal struct iOSNotificationData
         public string subtitle;
         public string categoryIdentifier;
         public string threadIdentifier;
+        public Int32 soundType;
+        public float soundVolume;
+        public string soundName;
 
         public IntPtr userInfo;
         public IntPtr attachments;
@@ -213,6 +244,36 @@ public int Badge
             set { data.badge = value; }
         }
 
+        /// <summary>
+        /// The type of sound to be played.
+        /// </summary>
+        public NotificationSoundType SoundType
+        {
+            get { return (NotificationSoundType)data.soundType; }
+            set { data.soundType = (int)value; }
+        }
+
+        /// <summary>
+        /// The name of the sound to be played. Use null for system default sound.
+        /// See Apple documentation for named sounds and sound file placement.
+        /// </summary>
+        public string SoundName
+        {
+            get { return data.soundName; }
+            set { data.soundName = value; }
+        }
+
+        /// <summary>
+        /// The volume for the sound. Use null to use the default volume.
+        /// See Apple documentation for supported values.
+        /// </summary>
+        /// <see href="https://developer.apple.com/documentation/usernotifications/unnotificationsound/2963118-defaultcriticalsoundwithaudiovol?language=objc"/>
+        public float? SoundVolume
+        {
+            get { return data.soundVolume < 0 ? null : data.soundVolume; }
+            set { data.soundVolume = value == null ? -1.0f : value.Value; }
+        }
+
         /// <summary>
         /// Arbitrary string data which can be retrieved when the notification is used to open the app or is received while the app is running.
         /// </summary>