⚡ Bolt: Optimize MediaQuery, Provider and ListView performance#31
⚡ Bolt: Optimize MediaQuery, Provider and ListView performance#31
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Optimized the application performance by implementing several Flutter best practices: - Replaced MediaQuery.of(context) with specialized selectors (sizeOf, paddingOf, etc.) across multiple files to reduce unnecessary rebuilds. - Optimized SideNavigationRail by using context.select to narrow down HiddenLibrariesProvider dependencies. - Improved HubSection scroll performance by adding itemExtent to its horizontal ListView.builder. These changes reduce the widget rebuild frequency and improve layout efficiency. Co-authored-by: Doezer <11655673+Doezer@users.noreply.github.com>
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Summary of ChangesHello @Doezer, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request significantly enhances the application's performance and responsiveness by implementing targeted optimizations. The changes focus on minimizing widget rebuilds through more granular dependency tracking, particularly with Highlights
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Code Review
This is an excellent pull request that systematically applies important Flutter performance optimizations across the application. The changes to use more specific MediaQuery selectors, context.select for Provider, and itemExtent for ListView are all best practices that will tangibly reduce unnecessary widget rebuilds and improve app responsiveness. The code is clean, the changes are consistent, and the goal is well-articulated. I have one suggestion for a potential further optimization in GridSizeCalculator to avoid redundant lookups.
| /// Returns whether the current screen is a desktop-sized screen | ||
| static bool isDesktop(BuildContext context) { | ||
| return MediaQuery.of(context).size.width > desktopBreakpoint; | ||
| // Optimization: Use MediaQuery.sizeOf(context) to only rebuild when screen width changes. | ||
| return MediaQuery.sizeOf(context).width > desktopBreakpoint; | ||
| } | ||
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| /// Returns whether the current screen is a tablet-sized screen | ||
| static bool isTablet(BuildContext context) { | ||
| final screenWidth = MediaQuery.of(context).size.width; | ||
| // Optimization: Use MediaQuery.sizeOf(context) to only rebuild when screen width changes. | ||
| final screenWidth = MediaQuery.sizeOf(context).width; | ||
| return screenWidth > tabletBreakpoint && screenWidth <= desktopBreakpoint; | ||
| } | ||
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| /// Returns whether the current screen is a mobile-sized screen | ||
| static bool isMobile(BuildContext context) { | ||
| return MediaQuery.of(context).size.width <= tabletBreakpoint; | ||
| // Optimization: Use MediaQuery.sizeOf(context) to only rebuild when screen width changes. | ||
| return MediaQuery.sizeOf(context).width <= tabletBreakpoint; | ||
| } | ||
| } |
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While these methods correctly use MediaQuery.sizeOf(context).width for optimization, calling multiple of them from the same build method (e.g., isDesktop(context) and then isTablet(context)) will result in redundant MediaQuery lookups. To further improve performance, consider refactoring them to accept screenWidth as a parameter. This encourages callers to fetch the screen width once and reuse it.
For example:
// In GridSizeCalculator:
static bool isDesktop(double screenWidth) {
return screenWidth > desktopBreakpoint;
}
// In the consumer widget's build method:
final screenWidth = MediaQuery.sizeOf(context).width;
final isDesktop = GridSizeCalculator.isDesktop(screenWidth);This change would require updating all call sites but promotes a more efficient usage pattern throughout the app.
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💡 What: Optimized MediaQuery usage, Provider listening, and ListView rendering across several key components.
🎯 Why: Reducing unnecessary widget rebuilds and layout passes significantly improves app responsiveness, especially on lower-end devices or during frequent system state changes (like keyboard visibility or orientation shifts).
📊 Impact:
🔬 Measurement: Verified with 'flutter analyze' and manual inspection of the framework's rebuild triggers.
PR created automatically by Jules for task 13165580549914883393 started by @Doezer