Summary:

In NightLightActivity.java (line 204), commit() is used to save SharedPreferences. However, commit() writes data synchronously, which can block the main thread. The recommended approach is to use apply(), which saves data asynchronously.

Steps to Reproduce:

1. Open NightLightActivity.java.
2. Navigate to line 204, where commit() is used on SharedPreferences.
3. Compare with SurveyPreferences.java (line 29), where apply() is correctly used.

Expected Behavior:

• Use apply() instead of commit() to prevent unnecessary blocking of the main thread.

Observed Behavior:

• commit() is used, which may cause UI lag in certain scenarios.

Suggested Fix:

• Replace commit() with apply() in NightLightActivity.java:204.
• Ensure consistency with SurveyPreferences.java, where apply() is already used.

Impact:

• Improves performance by making SharedPreferences updates asynchronous.
• Prevents potential UI freezes, ensuring a smoother user experience.
• Maintains consistency across the codebase.