Avoid recreating views in SmartSpaceComplicationViewHolder.

Also fixed the length of ComplicationHostViewController.TAG (30 -> 23).

Note: we'll still get multiple instances of the same type of view, when
updateComplications is called multiple times.

Bug: 231251252
Bug: 235625099
Test: on device via added logging
Change-Id: Ia80650dea1cdac7b19b34034b8dc41916134cace

packages/SystemUI/src/com/android/systemui/dreams/SmartSpaceComplication.java

@@ -89,6 +89,7 @@ public class SmartSpaceComplication implements Complication {
     }
 
     private static class SmartSpaceComplicationViewHolder implements ViewHolder {
+        private View mView = null;
         private static final int SMARTSPACE_COMPLICATION_WEIGHT = 10;
         private final DreamSmartspaceController mSmartSpaceController;
         private final Context mContext;
@@ -102,12 +103,16 @@ public class SmartSpaceComplication implements Complication {
 
         @Override
         public View getView() {
+            if (mView != null) {
+                return mView;
+            }
             final FrameLayout smartSpaceContainer = new FrameLayout(mContext);
             smartSpaceContainer.addView(
                     mSmartSpaceController.buildAndConnectView(smartSpaceContainer),
                     new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                             ViewGroup.LayoutParams.WRAP_CONTENT));
 
+            mView = smartSpaceContainer;
             return smartSpaceContainer;
         }
 

packages/SystemUI/src/com/android/systemui/dreams/complication/ComplicationHostViewController.java

@@ -44,7 +44,7 @@ import javax.inject.Named;
  * a {@link ComplicationLayoutEngine}.
  */
 public class ComplicationHostViewController extends ViewController<ConstraintLayout> {
-    public static final String TAG = "ComplicationHostViewController";
+    public static final String TAG = "ComplicationHostVwCtrl";
 
     private final ComplicationLayoutEngine mLayoutEngine;
     private final LifecycleOwner mLifecycleOwner;