Add error log for adding parented complications.

Adding a complication view that already has a parent throws an
IllegalStateException. This change adds an error log for that case that
includes the class of the complication to make it easier to track down.
The most likely cause of this is complication view reuse. Complication
views should be created anew each time they are needed.

Test: manually
Bug: 220478774
Change-Id: Icaa070ae3c852e89e7203e4b3ff3ee42bf515ce0

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

@@ -21,6 +21,7 @@ import static com.android.systemui.dreams.complication.dagger.ComplicationModule
 
 import android.graphics.Rect;
 import android.graphics.Region;
+import android.util.Log;
 import android.view.View;
 
 import androidx.constraintlayout.widget.ConstraintLayout;
@@ -42,6 +43,8 @@ import javax.inject.Named;
  * a {@link ComplicationLayoutEngine}.
  */
 public class ComplicationHostViewController extends ViewController<ConstraintLayout> {
+    public static final String TAG = "ComplicationHostViewController";
+
     private final ComplicationLayoutEngine mLayoutEngine;
     private final LifecycleOwner mLifecycleOwner;
     private final ComplicationCollectionViewModel mComplicationCollectionViewModel;
@@ -113,6 +116,12 @@ public class ComplicationHostViewController extends ViewController<ConstraintLay
                     final Complication.ViewHolder viewHolder = complication.getComplication()
                             .createView(complication);
                     mComplications.put(id, viewHolder);
+                    if (viewHolder.getView().getParent() != null) {
+                        Log.e(TAG, "View for complication "
+                                + complication.getComplication().getClass()
+                                + " already has a parent. Make sure not to reuse complication "
+                                + "views!");
+                    }
                     mLayoutEngine.addComplication(id, viewHolder.getView(),
                             viewHolder.getLayoutParams(), viewHolder.getCategory());
                 });