Use comparison operator rather than equals for enums in adapters

Fixes SPP_EQUALS_ON_ENUM issue from SpotBugs.

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

app/src/main/java/com/nextcloud/talk/adapters/items/ContactItem.java

@@ -145,8 +145,8 @@ public class ContactItem extends AbstractFlexibleItem<ContactItem.ContactItemVie
         }
 
         if (TextUtils.isEmpty(participant.getDisplayName()) &&
-            (participant.getType().equals(Participant.ParticipantType.GUEST) ||
-                participant.getType().equals(Participant.ParticipantType.USER_FOLLOWING_LINK))) {
+            (participant.getType() == Participant.ParticipantType.GUEST ||
+                participant.getType() == Participant.ParticipantType.USER_FOLLOWING_LINK)) {
             holder.binding.nameText.setText(NextcloudTalkApplication
                                                 .Companion
                                                 .getSharedApplication()
@@ -167,8 +167,8 @@ public class ContactItem extends AbstractFlexibleItem<ContactItem.ContactItemVie
 
         } else if (
             participant.getCalculatedActorType() == Participant.ActorType.GUESTS ||
-                Participant.ParticipantType.GUEST.equals(participant.getType()) ||
-                Participant.ParticipantType.GUEST_MODERATOR.equals(participant.getType())) {
+                participant.getType() == Participant.ParticipantType.GUEST ||
+                participant.getType() == Participant.ParticipantType.GUEST_MODERATOR) {
 
             String displayName;
 

app/src/main/java/com/nextcloud/talk/adapters/items/ConversationItem.java

@@ -274,7 +274,7 @@ public class ConversationItem extends AbstractFlexibleItem<ConversationItem.Conv
             }
         }
 
-        if (Conversation.ConversationType.ROOM_SYSTEM.equals(conversation.getType())) {
+        if (conversation.getType() == Conversation.ConversationType.ROOM_SYSTEM) {
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 
                 Drawable[] layers = new Drawable[2];

app/src/main/java/com/nextcloud/talk/adapters/items/ParticipantItem.java

@@ -140,8 +140,8 @@ public class ParticipantItem extends AbstractFlexibleItem<ParticipantItem.Partic
         }
 
         if (TextUtils.isEmpty(participant.getDisplayName()) &&
-            (participant.getType().equals(Participant.ParticipantType.GUEST) ||
-                participant.getType().equals(Participant.ParticipantType.USER_FOLLOWING_LINK))) {
+            (participant.getType() == Participant.ParticipantType.GUEST ||
+                participant.getType() == Participant.ParticipantType.USER_FOLLOWING_LINK)) {
             holder.binding.nameText.setText(NextcloudTalkApplication
                                                 .Companion
                                                 .getSharedApplication()
@@ -170,8 +170,8 @@ public class ParticipantItem extends AbstractFlexibleItem<ParticipantItem.Partic
                 holder.binding.avatarDraweeView.setImageResource(R.drawable.ic_circular_mail);
             }
         } else if (participant.getCalculatedActorType() == Participant.ActorType.GUESTS ||
-            Participant.ParticipantType.GUEST.equals(participant.getType()) ||
-            Participant.ParticipantType.GUEST_MODERATOR.equals(participant.getType())) {
+            participant.getType() == Participant.ParticipantType.GUEST ||
+            participant.getType() == Participant.ParticipantType.GUEST_MODERATOR) {
 
             String displayName = NextcloudTalkApplication.Companion.getSharedApplication()
                 .getResources().getString(R.string.nc_guest);