Hi FlutterFlow Community,
I’m building a fairly complex app in FlutterFlow with multiple API integrations and Firebase. As my app grows, I’ve started noticing some performance issues and occasional UI glitches.
Here are some best practices for performance and debugging in FlutterFlow apps:
1. Fix UI Problems
- Make sure your widgets have correct sizes, padding, margins, and alignment. Incorrect padding or widths can cause shifting or overlapping.
- If some widgets should show or hide based on conditions, double-check those conditions to avoid widgets disappearing unexpectedly.
- Ensure widgets don’t stack on top of each other unless intended. Verify containers have proper size and spacing.
2. Avoid Common Slowdowns
- Don’t run too many animations at once.
- Use smaller, optimized images and cache them.
- Avoid loading all data at once—use pagination to load a few items at a time.
- Keep your widget tree simple and avoid deep nesting.
3. Organize Your App Well
- Split large pages into smaller parts.
- Use FlutterFlow’s app state to save data and avoid repeated fetching.
- Show or hide widgets smartly instead of building everything at once.
4. Load Data in Parts (Pagination)
For lists, load only a small number of items first, then load more when the user scrolls. This keeps your app fast and saves memory.
5. Manage App State Carefully
Update only the parts of your UI that need changing. Avoid rebuilding the entire page when something small changes.
6. Handle Images Efficiently
Use caching and proper image sizes. Show placeholders while images load to improve user experience.
Hope this information helps you improve your FlutterFlow app.