Update RocketChatUserStatusProvider

app/src/main/java/chat/rocket/android/renderer/RocketChatUserStatusProvider.java

-package chat.rocket.android.renderer;
-
-import android.support.annotation.DrawableRes;
-
-import chat.rocket.android.R;
-import chat.rocket.android.widget.helper.UserStatusProvider;
-import chat.rocket.core.models.User;
-
-public class RocketChatUserStatusProvider implements UserStatusProvider {
-
-  private static RocketChatUserStatusProvider instance;
-
-  private RocketChatUserStatusProvider() {
-  }
-
-  public static RocketChatUserStatusProvider getInstance() {
-    if (instance == null) {
-      instance = new RocketChatUserStatusProvider();
-    }
-
-    return instance;
-  }
-
-  @Override
-  @DrawableRes
-  public int getStatusResId(String status) {
-    if (User.STATUS_ONLINE.equals(status)) {
-      return R.drawable.userstatus_online;
-    } else if (User.STATUS_AWAY.equals(status)) {
-      return R.drawable.userstatus_away;
-    } else if (User.STATUS_BUSY.equals(status)) {
-      return R.drawable.userstatus_busy;
-    } else if (User.STATUS_OFFLINE.equals(status)) {
-      return R.drawable.userstatus_offline;
-    }
-
-    // unknown status is rendered as "offline" status.
-    return R.drawable.userstatus_offline;
-  }
-}

app/src/main/java/chat/rocket/android/renderer/RocketChatUserStatusProvider.kt

+package chat.rocket.android.renderer
+
+import chat.rocket.android.R
+import chat.rocket.android.widget.helper.UserStatusProvider
+import chat.rocket.core.models.User
+
+object RocketChatUserStatusProvider: UserStatusProvider {
+
+    override fun getStatusResId(status: String?): Int {
+        var userStatusDrawableId = R.drawable.userstatus_offline
+        when (status) {
+            User.STATUS_ONLINE -> {
+                userStatusDrawableId = R.drawable.userstatus_online
+            }
+            User.STATUS_AWAY -> {
+                userStatusDrawableId = R.drawable.userstatus_away
+            }
+            User.STATUS_BUSY -> {
+                userStatusDrawableId = R.drawable.userstatus_busy
+            }
+        }
+        return userStatusDrawableId
+    }
+}
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