Prevent call notifications from blinking

app/src/main/java/org/linphone/notifications/Notifiable.java

@@ -29,11 +29,15 @@ public class Notifiable {
     private String mGroupTitle;
     private String mLocalIdentity;
     private String mMyself;
+    private int iconId;
+    private int textId;
 
     public Notifiable(int id) {
         mNotificationId = id;
         mMessages = new ArrayList<>();
         mIsGroup = false;
+        iconId = 0;
+        textId = 0;
     }
 
     public int getNotificationId() {
@@ -83,4 +87,20 @@ public class Notifiable {
     public void setLocalIdentity(String localIdentity) {
         mLocalIdentity = localIdentity;
     }
+
+    public int getIconResourceId() {
+        return iconId;
+    }
+
+    public void setIconResourceId(int id) {
+        iconId = id;
+    }
+
+    public int getTextResourceId() {
+        return textId;
+    }
+
+    public void setTextResourceId(int id) {
+        textId = id;
+    }
 }

app/src/main/java/org/linphone/notifications/NotificationsManager.java

@@ -341,6 +341,14 @@ public class NotificationsManager {
                 break;
         }
 
+        if (notif.getIconResourceId() == iconId
+                && notif.getTextResourceId() == notificationTextId) {
+            // Notification hasn't changed, do not "update" it to avoid blinking
+            return;
+        }
+        notif.setIconResourceId(iconId);
+        notif.setTextResourceId(notificationTextId);
+
         LinphoneContact contact = ContactsManager.getInstance().findContactFromAddress(address);
         Uri pictureUri = contact != null ? contact.getPhotoUri() : null;
         Bitmap bm = ImageUtils.getRoundBitmapFromUri(mContext, pictureUri);