Fix searched item isn't highlighted

The searched item isn't highlighted.
To fix this issue, the highlight process should be posted
as Runnable object.

Bug: 31983855
Test: manual - search a item in Settings app

Change-Id: I0dcc5bb52b2faa0a23991459885d8dfcaed0f226
diff --git a/src/com/android/settings/SettingsPreferenceFragment.java b/src/com/android/settings/SettingsPreferenceFragment.java
index 4796a9e..d910825 100644
--- a/src/com/android/settings/SettingsPreferenceFragment.java
+++ b/src/com/android/settings/SettingsPreferenceFragment.java
@@ -757,14 +757,16 @@
             super.onBindViewHolder(holder, position);
             if (position == mHighlightPosition) {
                 View v = holder.itemView;
-                if (v.getBackground() != null) {
-                    final int centerX = v.getWidth() / 2;
-                    final int centerY = v.getHeight() / 2;
-                    v.getBackground().setHotspot(centerX, centerY);
-                }
-                v.setPressed(true);
-                v.setPressed(false);
-                mHighlightPosition = -1;
+                v.post(() -> {
+                    if (v.getBackground() != null) {
+                        final int centerX = v.getWidth() / 2;
+                        final int centerY = v.getHeight() / 2;
+                        v.getBackground().setHotspot(centerX, centerY);
+                    }
+                    v.setPressed(true);
+                    v.setPressed(false);
+                    mHighlightPosition = -1;
+                });
             }
         }
     }