Decrease memory usage for sleep idle test

Postpone setTheme to decrease memory usage of Settings for the test
android.platform.test.scenario.sleep.Idle

Bug: 156631776
Test: forrest test
Change-Id: I4178eae0832e15c9d6da4a0f1f2898f5c797d388

1 files changed, 5 insertions, 4 deletions

diff --git a/src/com/android/settings/slices/SettingsSliceProvider.java b/src/com/android/settings/slices/SettingsSliceProvider.java
index 75061a5dac..c22d001a2d 100644
--- a/src/com/android/settings/slices/SettingsSliceProvider.java
+++ b/src/com/android/settings/slices/SettingsSliceProvider.java
@@ -143,7 +143,7 @@ public class SettingsSliceProvider extends SliceProvider {
     @VisibleForTesting
     final Map<Uri, SliceBackgroundWorker> mPinnedWorkers = new ArrayMap<>();
 
-    private boolean mNightMode;
+    private Boolean mNightMode;
 
     public SettingsSliceProvider() {
         super(READ_SEARCH_INDEXABLES);
@@ -153,8 +153,6 @@ public class SettingsSliceProvider extends SliceProvider {
     public boolean onCreateSliceProvider() {
         mSlicesDatabaseAccessor = new SlicesDatabaseAccessor(getContext());
         mSliceWeakDataCache = new WeakHashMap<>();
-        mNightMode = Utils.isNightMode(getContext());
-        getContext().setTheme(R.style.Theme_SettingsBase);
         return true;
     }
 
@@ -207,7 +205,10 @@ public class SettingsSliceProvider extends SliceProvider {
             }
 
             final boolean nightMode = Utils.isNightMode(getContext());
-            if (mNightMode != nightMode) {
+            if (mNightMode == null) {
+                mNightMode = nightMode;
+                getContext().setTheme(R.style.Theme_SettingsBase);
+            } else if (mNightMode != nightMode) {
                 Log.d(TAG, "Night mode changed, reload theme");
                 mNightMode = nightMode;
                 getContext().getTheme().rebase();