Problem:
ListView is used with a fixed children list instead of a builder-based constructor:
ListView(
children: [
...
],
);
Issues:
- Not memory-efficient for long or dynamic lists
- Prevents lazy rendering and virtualization
- Reduces performance on large datasets
Recommendation:
Use ListView.builder or ListView.separated for better performance and cleaner scaling.
✅ Use ListView.builder:
ListView.builder(
itemCount: items.length,
itemBuilder: (context, index) => buildItem(items[index]),
);
✅ Use ListView.separated when consistent spacing or dividers are needed:
ListView.separated(
itemCount: items.length,
itemBuilder: (context, index) => buildItem(items[index]),
separatorBuilder: (context, index) => const SizedBox(height: 12),
);
Impact:
- Better performance and memory usage
- Cleaner code structure for dynamic lists
- Easier to maintain and refactor
Problem:
ListViewis used with a fixedchildrenlist instead of a builder-based constructor:Issues:
Recommendation:
Use
ListView.builderorListView.separatedfor better performance and cleaner scaling.✅ Use
ListView.builder:✅ Use
ListView.separatedwhen consistent spacing or dividers are needed:Impact: