Make showing loading drawable conditional

Bug: 143722780
Test: manually
Change-Id: I86dbf3463c6fd1afe50e79083e4d1396fa9fb572
diff --git a/car-apps-common/src/com/android/car/apps/common/imaging/ImageBinder.java b/car-apps-common/src/com/android/car/apps/common/imaging/ImageBinder.java
index 0e59a54..f640218 100644
--- a/car-apps-common/src/com/android/car/apps/common/imaging/ImageBinder.java
+++ b/car-apps-common/src/com/android/car/apps/common/imaging/ImageBinder.java
@@ -158,7 +158,7 @@
             getImageFetcher(context).cancelRequest(mCurrentKey, mFetchReceiver);
             onRequestFinished();
         }
-        setDrawable(getLoadingDrawable(context));
+        setDrawable(mPlaceholderType != PlaceholderType.NONE ? getLoadingDrawable(context) : null);
     }
 
     private void onRequestFinished() {