Fix artist cover visualization

app/src/main/java/com/cappielloantonio/play/util/UIUtil.java

@@ -0,0 +1,14 @@
+package com.cappielloantonio.play.util;
+
+public class UIUtil {
+    public static int getSpanCount(int itemCount, int maxSpan) {
+        int itemSize = itemCount == 0 ? 1 : itemCount;
+
+        if (itemSize / maxSpan > 0) {
+            return maxSpan;
+        }
+        else {
+            return itemSize % maxSpan;
+        }
+    }
+}