super_pagination 4.1.6
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Powerful Flutter pagination library with built-in BLoC state management, 6+ view types (ListView, GridView, PageView, StaggeredGrid, ReorderableListView, Column, Row, Custom), advanced error handling [...]
Changelog #
All notable changes to this project will be documented in this file.
The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.
4.1.4 - 2026-07-16 #
- Rebuilt the chat pagination example around the shared
super_coredesign system. - Replaced WhatsApp-specific surfaces and fixed colors with
SuperThemeData,SuperText,SuperCard, shared radii, spacing, semantic colors, and the active Material color scheme. - Redesigned the conversation header, search field, quick-navigation toolbar, message composer, state views, message actions, date separators, typing indicator, and message bubbles.
- Updated attachment cards to use shared surfaces, borders, and typography while preserving media-specific semantic accents.
- Made simulated typing/reply timers cancellable when the chat screen is disposed.
4.1.3 - 2026-07-16 #
- Replaced the example application's hand-built navigation panel with
super_navigation_sidebar2.3.0. - Integrated the package's typed
NavigationSidebarController,NavigationShell, responsive expanded/rail/drawer modes, breadcrumb/filter app bar, command palette, favorites, recents, and keyboard shortcut binder. - Kept
TypedShellRouteand GoRouter as the route source of truth while synchronizing the sidebar selection with every category and detail route. - Derived sidebar colors and responsive metrics from the existing
super_coretheme rather than maintaining another local navigation theme.
4.1.2 - 2026-07-16 #
- Fixed the example dashboard card layout crash caused by an
Expandedchild receiving unbounded vertical constraints insideSuperCard. - Increased the adaptive example-grid row extent and reserved a bounded description area so cards remain uniform without RenderFlex overflow.
- Added desktop and mobile widget coverage for the home dashboard layout.
4.1.1 - 2026-07-16 #
- Turned the example router shell into a functional
TypedShellRoutewith a persistent responsive navigation surface. - Kept all category and detail routes on the shell navigator instead of escaping to the root navigator.
- Rebuilt the example landing experience as a responsive dashboard with a showcase hero, section switcher, metrics, search, and adaptive example grid.
- Aligned route transitions and navigation chrome with
super_coremotion, surfaces, borders, typography, and spacing tokens. - Fixed duplicate named arguments in the generated-route source implementation.
4.1.0 - 2026-07-16 #
- Adopted
super_core1.2.0 as the package-wide GeniusLink design-system source. - Added
SuperPaginationThemefor loaders, empty states, errors, and retry actions. - Reworked
SuperSearchThemeso its defaults derive fromSuperThemeData, the activeColorScheme, and shared radii instead of duplicated color constants. - Updated built-in error builders and search fallbacks to use shared surfaces, typography, spacing, semantic colors, and responsive metrics.
- Rebuilt the example app theme, home catalog, product cards, and search-theming demo with
SuperMaterialThemeData,SuperDeviceMode, and Super Core widgets.
4.0.0 #
- Renamed the package to
super_paginationand introduced the canonicalSuperPagination*API aliases. - Reorganized the implementation into Domain, Application, and Presentation modules with MVC-oriented controllers and views.
- Preserved the former
SuperPagination*symbols and thepagination.dartentry point for source compatibility. - Refactored the example application into feature-first Clean Architecture modules with MVC controllers, application contracts, a composition root, and compatibility exports for all former example import paths.
3.5.0 - 2026-05-06 #
Added #
- Scroll Anchor Preservation (spec 004). The package now preserves the user's viewport position across load-more appends and prevents chain-triggered auto-fetches from a single fast fling. Before each accepted load-more, a viewport anchor is captured (key → itemIndex → offset, depending on availability); after the appended items are laid out, the scroll is jumped back to the anchor in a post-frame callback. An internal suppression flag drops further automatic load-more triggers until the user initiates a new drag-scroll gesture.
preserveScrollAnchorOnAppendparameter on every public wrapper (SuperPaginationListView,SuperPaginationGridView,SuperPaginationStaggeredGridView, …) and onPaginateApiView. Defaults totrue; setting it tofalsereverts to pre-3.5.0 framework default ("stick to the bottom" via maintainExtent) — capture, restore, and the suppression flag are all disabled.- Internal cubit hooks
captureAnchorBeforeLoadMore,markUserScroll,setLoadMoreSuppressionEnabled, andskipLoadMoreSuppressionOnce— marked@internaland consumed exclusively byPaginateApiView. scrollview_observerintegration forListView,GridView, and sliver-basedCustomScrollViewbuilds — used to read the last-fully-visible item synchronously at trigger time.
Changed #
- Out-of-scope view types are master-switched at attach time. When the
widget mounts a
PageView,ReorderableListView, custom builder, or any view withreverse: true, it callscubit.setLoadMoreSuppressionEnabled(false)once so chain-triggered fetches fire freely (matching the pre-feature behavior for those views). The selection logic does not need to re-evaluate per fetch. StaggeredGridView80% threshold guard. The widget's notification listener now requiresmaxScrollExtent > 0before firing — previously a layout where content fits the viewport (maxScrollExtent == 0) could trigger a load-more loop.StaggeredGridViewbottom widget rendering. The bottom slot is now rendered only when actively loading more, on error, or at end-of-list with aloadMoreNoMoreItemsBuilder— previously the perpetualBottomLoaderspinner could preventpumpAndSettlefrom completing.
Compatibility #
No breaking changes. Existing .withProvider(...) and .withCubit(...)
call sites — including those passing an external ScrollController —
work unchanged. External controller listeners continue to fire; the
package never disposes a controller it did not allocate. The new
preserveScrollAnchorOnAppend parameter is purely additive.
3.4.0 - 2026-05-05 #
Added #
- Optional
identityKeyparameter onSuperPaginationCubitfor opt-in cross-page item deduplication. When configured, the cubit drops items whose identity-key already appears in an earlier accumulated page before they are appended to the merged list. Default behaviour is unchanged — withoutidentityKey, items are appended exactly as the provider returned them.SuperPaginationCubit<Product, SuperPaginationRequest>( request: SuperPaginationRequest(page: 1, pageSize: 20), provider: SuperPaginationProvider.future(api.fetchProducts), identityKey: (product) => product.id, ); - Per-page in-flight key tracking (
_activeLoadMoreKey). Independent second-layer guard against duplicate concurrent fetches for the same page key ("page:pageSize"). Set infetchPaginatedListbefore the firstawait; cleared on completion, error, cancellation, and reset. isCompleteflag on_PageStreamEntry. Pages that have not yet delivered their first emission no longer contribute to the short-page end-of-list heuristic, eliminating prematurehasReachedEndduring stream warm-up.
Fixed #
- Rapid scroll could trigger duplicate concurrent load-more requests.
SuperPaginationCubit._isFetchingis now set infetchPaginatedListbeforeemit(isLoadingMore: true)(previously inside_fetch, after a synchronous gap). Combined with the new_activeLoadMoreKeyguard, ten rapidfetchPaginatedList()calls now produce exactly one provider call. - Stream providers double-called the factory function per page load.
_fetchnow captures the stream instance once and reuses it for both the.firstsnapshot and the persistent_attachStreamsubscription when the stream is broadcast. Single-subscription streams still receive a second factory call (backwards-compatible fallback). _attachStreamcould double-register the same page in the same generation. A new generation-aware guard at the top of_attachStreamskips re-registration when an entry for the page already exists at the current generation.- Empty load-more responses appended an empty page before end-of-list detection.
_fetchnow early-returns onpageItems.isEmptyfor load-more, setshasReachedEnd: true, and does not append. _emitMergedLoadedcould prematurely sethasReachedEndduring stream warm-up. The short-page heuristic now consults only pages flagged complete (isComplete == true).- External
cancelOngoingRequest()left_activeLoadMoreKeyset. Cancellation now clears the per-page key so subsequent fetches for the same page are not blocked by a stale active key.
Changed #
- Widget-level scroll trigger is wrapped in
SchedulerBinding.addPostFrameCallback. Multiple item builders callingwidget.fetchPaginatedList?.call()during the same build pass now collapse to a single post-frame callback (defense in depth — the cubit-level guard is still authoritative). _computeHasNextaccepts an optionalserverHasNextoverride. Forward-compatible plumbing for cursor-aware providers; existing call sites are unchanged. WiringserverHasNextthrough a publicPaginationResponsewrapper is deferred to a future enhancement.
3.3.0 - 2026-05-05 #
Added #
- Stream pagination now accumulates page subscriptions within a scope.
SuperPaginationProvider.stream(...)andSuperPaginationProvider.mergeStreams(...)register a new per-page subscription on everyloadMore()instead of overwriting the previous one. Emissions on any active page update only that page's slice; the merged list reflectspage1 ∪ page2 ∪ … ∪ pageNin page order. - Per-page error annotation on
SuperPaginationLoaded.pageErrors. When a stream provider's page errors, only that page's subscription is cancelled and the error is recorded atstate.pageErrors[page]. Sibling pages keep emitting, and the failing page's last good slice remains visible in the merged view.pageErrorsisconst <int, Object>{}by default — additive and backward-compatible. - Dynamic end-of-pagination derivation. A page whose latest emission has fewer items than
pageSize(including[]) signals the end of pagination and gatesloadMore(). Re-evaluated on every emission: a later emission that restorescount == pageSizere-enablesloadMore()in the same scope.
Fixed #
MergedStreamSuperPaginationProvidersingle-stream branch leaked subscriptions. The branch now wraps the underlying stream in a controller, so cancelling the merged subscription cancels the underlying subscription. Symmetric with the multi-stream branch.- Merged streams never closed when all children completed. The provider now tracks per-child completion and closes the controller after the last child completes (FR-023).
_fetchcould mutate state afterdispose()when a future response arrived post-close. Added anisClosedcheck after the await so late responses are dropped silently (FR-005).- Stale stream emissions could update a new scope's state. Each registered per-page entry is now tagged with a scope generation; emissions whose generation no longer matches the cubit's current generation are discarded (FR-016).
Changed #
maxPagesInMemoryeviction propagates to the per-page subscription registry. When the cap drops the oldest in-memory page, its stream subscription is cancelled and itspageErrorsannotation is cleared. No new public knob — existing eviction semantics preserved.
3.2.0 - 2026-03-16 #
Breaking Changes #
- All item operations now return
Future<bool>:insertEmit,insertAllEmit,addOrUpdateEmit,removeItemEmit,removeAtEmit,removeWhereEmit,updateItemEmit,updateWhereEmit,clearItems,setItems— all now returnFuture<bool>indicating success/failure instead ofvoid/bool/T?/int
Added #
- Partial view updates with animations: Item add/update/remove operations now trigger targeted UI updates instead of full list rebuilds
SliverAnimatedListfor ListView with insert/remove animationsKeyedSubtree+findChildIndexCallbackfor GridView, PageView, StaggeredGridView, and ReorderableListViewPaginationOperationsealed class for tracking operation metadata
refreshItemmethod: Refresh a specific item from the serverawait cubit.refreshItem( (item) => item.id == productId, (currentItem) => api.fetchProduct(currentItem.id), );- New widget parameters:
itemKeyBuilder— unique key per item for efficient partial updates and animationsbuildWhen— control whenBlocBuilderrebuildsinsertItemAnimationBuilder— custom insert animationremoveItemAnimationBuilder— custom remove animationanimationDuration— animation duration (default: 300ms)
Usage #
// All operations now return Future<bool>
final success = await cubit.insertEmit(newProduct);
final removed = await cubit.removeItemEmit(product);
final updated = await cubit.updateItemEmit(
(item) => item.id == id,
(item) => item.copyWith(price: newPrice),
);
// Refresh item from server
await cubit.refreshItem(
(item) => item.id == productId,
(currentItem) => api.fetchProduct(currentItem.id),
);
// Enable animations with itemKeyBuilder
SuperPaginationListView.withCubit(
cubit: cubit,
itemKeyBuilder: (item, index) => item.id,
itemBuilder: (context, items, index) => ProductTile(product: items[index]),
);
3.1.3 - 2026-02-04 #
Added #
- Auto-retry on connectivity restored: Network errors are now automatically retried when internet connection is restored
- New
connectivityStreamparameter inSuperPaginationCubitconstructor for automatic monitoring - New
onConnectivityRestored()method for manual notification - New
isNetworkErrorgetter to check if last error was network-related - Detects common network errors: SocketException, connection refused/reset/timeout, failed host lookup, etc.
- New
Usage #
// Option 1: Using connectivity_plus package with stream
final cubit = SuperPaginationCubit<Product, SuperPaginationRequest>(
request: request,
provider: provider,
connectivityStream: Connectivity().onConnectivityChanged
.map((result) => result != ConnectivityResult.none),
);
// Option 2: Manual notification
Connectivity().onConnectivityChanged.listen((result) {
if (result != ConnectivityResult.none) {
cubit.onConnectivityRestored();
}
});
3.1.2 - 2026-02-03 #
Changed #
- ErrorRetryStrategy: Changed default from
automatictonone- Errors no longer trigger automatic retries on the next
fetchPaginatedList()call - This prevents unwanted retry loops when API calls fail
- Use
ErrorRetryStrategy.automaticexplicitly if you want the old behavior - Use
retryAfterError()for explicit retry control, orrefreshPaginatedList()to reset
- Errors no longer trigger automatic retries on the next
Notes #
- hasReachedEnd: Already correctly set to
truewhen returned items < pageSize - Page increment: Page number only increments after successful fetch (existing behavior)
3.1.1 - 2026-01-09 #
Added #
-
SuperSearchConfig: New
skipDebounceOnEmptyparameter (default:true)- When
trueandsearchOnEmptyis alsotrue, search triggers immediately when text is cleared - Skips debounce delay for empty text to show all data instantly
- Useful for providing immediate feedback when user clears the search field
- When
-
SuperSearchConfig: New
fetchOnInitparameter (default:false)- When
trueandsearchOnEmptyis alsotrue, data is fetched immediately when the controller is created - Pre-loads data before the overlay is shown for instant display
- Useful for scenarios where you want data ready before user interaction
- When
3.1.0 - 2026-01-08 #
Added #
- SuperSearchMultiDropdown: New
displayModeparameter to switch betweenSearchDisplayMode.overlay(default) andSearchDisplayMode.bottomSheet - SearchDisplayMode: New enum with
overlayandbottomSheetoptions - SuperSearchBottomSheetConfig: New configuration class for bottom sheet appearance with options:
title/titleBuilder: Bottom sheet titleconfirmText/cancelText: Button labelsshowSelectedCount: Show selection count in titleshowClearAllButton: Show clear all buttonheightFactor: Bottom sheet height (0.0 to 1.0)showDragHandle: Show drag indicator
- New parameters for SuperSearchMultiDropdown:
hintText: Custom hint text for the trigger buttononMaxSelectionsReached: Callback when max selections limit is reached
Fixed #
- SuperSearchOverlay: Fixed
onSelectedcallback not being called when item is selected. The callback now always fires with nullable key (K?) to support cases wherekeyExtractoris not provided. - SuperSearchOverlay: Fixed overlay positioning when appearing above the search box. The overlay now anchors from the bottom and grows upward, ensuring it always touches the input field.
3.0.0 - 2026-01-07 #
Breaking Changes #
Unified Selection Callbacks 🔄
The selection callbacks have been simplified and unified into a single onSelected callback that returns both the item and its key.
SuperSearchDropdown:
| Old API | New API |
|---|---|
onItemSelected: (item) => ... |
onSelected: (item, key) => ... |
onKeySelected: (key) => ... |
(merged into onSelected) |
SuperSearchMultiDropdown:
| Old API | New API |
|---|---|
onSelectionChanged: (items) => ... |
onSelected: (items, keys) => ... |
onKeysChanged: (keys) => ... |
(merged into onSelected) |
Migration:
// Before (v2.x)
SuperSearchDropdown<Product, int>.withProvider(
onItemSelected: (product) => print(product.name),
onKeySelected: (id) => setState(() => selectedId = id),
// ...
)
// After (v3.0)
SuperSearchDropdown<Product, int>.withProvider(
keyExtractor: (product) => product.id,
onSelected: (product, id) {
print(product.name);
setState(() => selectedId = id);
},
// ...
)
// Before (v2.x)
SuperSearchMultiDropdown<Product, int>.withProvider(
onSelectionChanged: (products) => print(products.length),
onKeysChanged: (ids) => setState(() => selectedIds = ids),
// ...
)
// After (v3.0)
SuperSearchMultiDropdown<Product, int>.withProvider(
keyExtractor: (product) => product.id,
onSelected: (products, ids) {
print(products.length);
setState(() => selectedIds = ids);
},
// ...
)
2.7.0 - 2026-01-05 #
Added #
Key-Based Selection for SuperSearchDropdown 🔑
New powerful key-based selection feature that allows selecting items by their unique key/ID instead of by object reference. This is especially useful when working with API data where object instances may differ but the underlying ID is the same.
New Parameters for SuperSearchDropdown:
| Parameter | Type | Description |
|---|---|---|
keyExtractor |
K Function(T item)? |
Extracts unique key from item |
selectedKey |
K? |
Currently selected key (for controlled selection) |
onKeySelected |
void Function(K key, T item)? |
Called when item is selected with its key |
selectedKeyLabelBuilder |
String Function(K key)? |
Builds display label from key when item not loaded |
New Parameters for SuperSearchMultiDropdown:
| Parameter | Type | Description |
|---|---|---|
keyExtractor |
K Function(T item)? |
Extracts unique key from item |
selectedKeys |
Set<K>? |
Currently selected keys (for controlled selection) |
onKeysChanged |
void Function(Set<K> keys, List<T> items)? |
Called when selection changes with keys |
initialSelectedKeys |
Set<K>? |
Pre-selected keys on widget load |
Usage Example - Single Selection:
SuperSearchDropdown<Product, int>.withProvider(
keyExtractor: (product) => product.id,
selectedKey: selectedProductId, // int
onKeySelected: (id, product) {
setState(() => selectedProductId = id);
print('Selected product ID: $id');
},
// When item isn't loaded yet, show the ID
selectedKeyLabelBuilder: (id) => 'Product #$id',
// ... other properties
)
Usage Example - Multi Selection:
SuperSearchMultiDropdown<Product, int>.withProvider(
keyExtractor: (product) => product.id,
selectedKeys: selectedProductIds, // Set<int>
onKeysChanged: (ids, products) {
setState(() => selectedProductIds = ids);
print('Selected ${ids.length} products');
},
initialSelectedKeys: {1, 2, 3}, // Pre-select by IDs
// ... other properties
)
Benefits:
- Pre-selection before data loads: Select by ID even when item hasn't been fetched
- Consistent state management: Use primitive keys instead of object references
- API-friendly: Works naturally with REST APIs returning IDs
- Form integration: Easily bind to form fields with ID values
Initial/Pre-Selection Support 📋
Enhanced support for pre-populating search dropdowns with initial values, perfect for edit forms and default selections.
SuperSearchDropdown:
initialSelectedValue: Set an initial item objectselectedKey+selectedKeyLabelBuilder: Pre-select by key with placeholder label
SuperSearchMultiDropdown:
initialSelectedValues: Set initial list of item objectsinitialSelectedKeys: Set initial set of keys
Form Usage Example:
// Edit form with pre-selected category
SuperSearchDropdown<Category, int>.withProvider(
initialSelectedValue: existingProduct.category,
// OR use key-based pre-selection
selectedKey: existingProduct.categoryId,
selectedKeyLabelBuilder: (id) => 'Category #$id (loading...)',
showSelected: true,
onKeySelected: (categoryId, category) {
formData.categoryId = categoryId;
},
)
New Example Screens 📱
Added two comprehensive example screens demonstrating the new features:
-
Key-Based Selection Screen: Shows 4 examples of key-based selection:
- Basic key extraction and selection
- Pre-selection by key with pending label
- Multi-select with key sets
- Custom key label builder display
-
Initial Selection Screen: Shows 4 examples of initial value handling:
- Initial selected value for single dropdown
- Form integration with default values
- Multi-select with initial values list
- Conditional initial value based on context
Fixed #
- Fixed type inference issues in
SuperSearchControllerwhereObject?couldn't be assigned to generic typeK? - Fixed null check operator usage on nullable type parameters in
selectedKeyLabelgetter - Renamed scroll mixin and typedefs for consistency:
SuperPaginationScrollToItem→PaginationScrollToItemSuperPaginationScrollToIndex→PaginationScrollToIndexSuperPaginationScrollToItemMixin→PaginationScrollToItemMixin
2.6.0 - 2026-01-02 #
Added #
Scroll Navigation Methods - Programmatic Scrolling 🎯
New scroll navigation methods in SuperPaginationCubit using the scrollview_observer package. These methods allow you to programmatically scroll to specific items in your list or grid views.
New Methods:
| Method | Description |
|---|---|
animateToIndex(int index, {...}) |
Smoothly animate to item at index |
jumpToIndex(int index, {...}) |
Instantly jump to item at index |
animateFirstWhere(bool Function(T) test, {...}) |
Animate to first item matching predicate |
jumpFirstWhere(bool Function(T) test, {...}) |
Jump to first item matching predicate |
scrollToIndex(int index, {bool animate}) |
Convenience method combining animate/jump |
scrollFirstWhere(bool Function(T) test, {bool animate}) |
Convenience method combining animate/jump |
Observer Controller Management:
| Method | Description |
|---|---|
attachListObserverController(ListObserverController) |
Attach controller for ListView |
attachGridObserverController(GridObserverController) |
Attach controller for GridView |
detachListObserverController() |
Detach list observer controller |
detachGridObserverController() |
Detach grid observer controller |
detachAllObserverControllers() |
Detach all observer controllers |
Properties:
| Property | Type | Description |
|---|---|---|
hasListObserverController |
bool |
Whether a list observer is attached |
hasGridObserverController |
bool |
Whether a grid observer is attached |
hasObserverController |
bool |
Whether any observer is attached |
Usage Example:
// Create the observer controller
final scrollController = ScrollController();
final observerController = ListObserverController(controller: scrollController);
// Attach to cubit
cubit.attachListObserverController(observerController);
// Navigate to specific index with animation
await cubit.animateToIndex(
10,
duration: Duration(milliseconds: 500),
curve: Curves.easeOutCubic,
alignment: 0.5, // Center in viewport
);
// Jump instantly to an index
cubit.jumpToIndex(0);
// Find and scroll to first matching item
await cubit.animateFirstWhere(
(message) => message.id == targetId,
alignment: 0.3,
);
// In your widget, wrap with ListViewObserver
ListViewObserver(
controller: observerController,
child: SuperPagination<Message, SuperPaginationRequest>.listViewWithCubit(
cubit: cubit,
scrollController: scrollController,
itemBuilder: (context, items, index) => MessageWidget(items[index]),
),
)
Parameters:
All navigation methods support these parameters:
duration- Animation duration (default: 300ms)curve- Animation curve (default: Curves.easeInOut)alignment- Position in viewport (0.0 = top, 0.5 = center, 1.0 = bottom)padding- Additional padding for alignmentisFixedHeight- Whether items have fixed height (optimization)sliverContext- Context for sliver-based scrolling
Chat Screen Example 💬
New comprehensive chat screen example demonstrating scroll navigation features:
- Animated scroll to specific messages
- Jump to unread messages
- Search and scroll to matching messages
- Message highlighting on navigation
- Real-time message insertion with auto-scroll
2.5.1 - 2026-01-02 #
Fixed #
Concurrent Request Prevention 🔒
Fixed an issue where multiple fetch requests could be executed simultaneously, causing duplicate data or race conditions.
The Problem:
- When
fetchPaginatedList()was called multiple times rapidly (e.g., from multiple widget rebuilds), each call would trigger a separate network request - This led to duplicate items, race conditions, and wasted network resources
The Solution:
- Added
_isFetchingflag to track ongoing fetch operations - New requests are now queued/ignored while a fetch is in progress
- The cubit now exposes
isFetchinggetter to check the current state
// Check if a fetch is in progress
if (!cubit.isFetching) {
cubit.fetchPaginatedList();
}
Error Retry Strategy - Prevent Infinite Retries 🛡️
Added configurable error retry strategy to prevent infinite retry loops when server errors occur.
The Problem:
- When a server error occurred, widget rebuilds would trigger automatic retries endlessly
- This caused unnecessary network load and poor user experience
The Solution:
- New
ErrorRetryStrategyenum with three modes:automatic: Default behavior, retries on next fetch callmanual: Requires explicitretryAfterError()callnone: No automatic retry, requiresrefreshPaginatedList()
Usage:
SuperPaginationCubit<Product, SuperPaginationRequest>(
request: request,
provider: provider,
// Prevent automatic retries on error
errorRetryStrategy: ErrorRetryStrategy.manual,
);
// Later, when user taps retry button:
if (cubit.hasError) {
cubit.retryAfterError();
}
New Cubit Properties:
| Property | Type | Description |
|---|---|---|
isFetching |
bool |
Whether a fetch is in progress |
hasError |
bool |
Whether the last fetch resulted in an error |
lastError |
Exception? |
The last error that occurred |
New Cubit Methods:
| Method | Description |
|---|---|
retryAfterError() |
Explicitly retry after an error (for manual strategy) |
clearError() |
Clear error state without retrying |
2.5.0 - 2025-12-31 #
Added #
Overlay Value Parameter - Context-Aware Content 🎯
New feature that allows passing a value when showing the overlay programmatically. This enables you to determine what content to display in the overlay based on the passed value.
Usage Example:
// Show overlay for user search
controller.showOverlay(value: 'user');
// Show overlay for category selection
controller.showOverlay(value: CategoryType.products);
// Show overlay with numeric identifier
controller.showOverlay(value: 1);
// In your widget, check the value:
if (controller.overlayValue == 'user') {
return UserSearchContent();
}
// Type-safe access
final categoryId = controller.getOverlayValue<int>(); // Returns int? or null
New Controller Methods:
| Method | Description |
|---|---|
showOverlay({Object? value}) |
Show overlay with optional context value |
hideOverlay({bool clearValue = true}) |
Hide overlay, optionally preserving the value |
toggleOverlay({Object? value}) |
Toggle visibility with optional value |
setOverlayValue(Object? value) |
Set value without showing overlay |
clearOverlayValue() |
Clear the overlay value |
getOverlayValue<V>() |
Type-safe value access, returns null if type mismatch |
New Controller Properties:
| Property | Type | Description |
|---|---|---|
overlayValue |
Object? |
Current overlay value |
hasOverlayValue |
bool |
Whether a value is set |
Overlay Animation Types - 13 Animation Styles 🎬
New powerful animation system for overlay show/hide transitions. Choose from 13 different animation types to match your app's design.
Available Animation Types:
| Animation Type | Description |
|---|---|
fade |
Simple fade in/out (default) |
scale |
Scale animation from center |
fadeScale |
Combined scale with fade |
slideDown |
Slide from top with fade |
slideUp |
Slide from bottom with fade |
slideLeft |
Slide from left with fade |
slideRight |
Slide from right with fade |
bounceScale |
Elastic bounce scale effect |
elasticScale |
Smooth elastic scale with overshoot |
flipX |
3D flip on X axis |
flipY |
3D flip on Y axis |
zoomIn |
Zoom from 50% to 100% |
none |
Instant show/hide, no animation |
Usage Example:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
overlayConfig: SuperSearchOverlayConfig(
animationType: OverlayAnimationType.bounceScale,
animationDuration: Duration(milliseconds: 300),
animationCurve: Curves.easeOutBack,
),
)
New Configuration Parameters:
| Parameter | Type | Default | Description |
|---|---|---|---|
animationType |
OverlayAnimationType |
fade |
Animation style for show/hide |
animationCurve |
Curve |
Curves.easeOutCubic |
Animation curve for the transition |
Scroll-Aware Overlay Positioning 📜
The overlay now tracks the search field position in real-time when the user scrolls. This ensures the overlay stays correctly positioned relative to its target, even in scrollable content.
Key Features:
- Real-time position updates during scrolling
- Automatic attachment to nearest scrollable ancestor
- Screen orientation/size change handling
- Can be disabled via configuration
Usage Example:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
overlayConfig: SuperSearchOverlayConfig(
followTargetOnScroll: true, // Default: true
),
)
New Configuration Parameter:
| Parameter | Type | Default | Description |
|---|---|---|---|
followTargetOnScroll |
bool |
true |
Whether overlay follows target on scroll |
High-Accuracy Position Tracking 🎯
Enhanced position tracking system for maximum accuracy when the overlay follows the search field during scrolling.
Technical Implementation:
- Ticker-based monitoring: Continuous position checking every frame for instant updates
- Multi-level scroll tracking: Attaches to all ancestor
ScrollPositionobjects - NotificationListener wrapper: Catches scroll events from any scrollable in the widget tree
- Super update scheduling: Uses
addPostFrameCallbackfor smooth, non-blocking updates - Optimized rebuilds: Only triggers overlay rebuild when position actually changes
How it works:
// Tracks position changes every frame
Ticker _positionTicker;
Offset? _lastKnownPosition;
void _onPositionTick(Duration elapsed) {
final currentPosition = renderBox.localToGlobal(Offset.zero);
// Only update if position actually changed
if (_lastKnownPosition != currentPosition) {
_lastKnownPosition = currentPosition;
_overlayEntry!.markNeedsBuild();
}
}
Benefits:
- Works with nested scrollables (e.g., ListView inside PageView)
- Handles keyboard appearance/disappearance
- Responds to screen rotation and resize
- Zero lag between scroll and overlay position update
2.4.2 - 2025-12-30 #
Added #
SuperSearchMultiDropdown - Multi-Selection Search 🎯
New widget for selecting multiple items from search results with continuous search capability.
Key Features:
- Search and select multiple items
- Search box remains visible after selection (for continuous searching)
- Selected items displayed below the search box with individual remove buttons
- Maximum selections limit support
- Custom selected item builder for chip styling
- Configurable wrap/scroll for selected items display
Basic Usage:
SuperSearchMultiDropdown<Product>.withProvider(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
searchRequestBuilder: (query) => SuperPaginationRequest(
page: 1,
pageSize: 20,
searchQuery: query,
),
itemBuilder: (context, product) => ListTile(
title: Text(product.name),
),
showSelected: true,
onSelectionChanged: (products) {
print('Selected ${products.length} items');
},
)
With Max Selections:
SuperSearchMultiDropdown<Product>.withProvider(
// ... other properties
maxSelections: 5, // Limit to 5 items
onSelectionChanged: (products) {
// Handle selection
},
)
Custom Selected Item Builder:
SuperSearchMultiDropdown<Product>.withProvider(
// ... other properties
selectedItemBuilder: (context, product, onRemove) => Chip(
label: Text(product.name),
onDeleted: onRemove,
deleteIcon: Icon(Icons.close, size: 18),
),
)
New Parameters:
| Parameter | Type | Description |
|---|---|---|
onSelectionChanged |
ValueChanged<List<T>>? |
Called when selection changes |
initialSelectedValues |
List<T>? |
Pre-selected items on widget load |
maxSelections |
int? |
Maximum number of selectable items |
selectedItemBuilder |
Widget Function(...) |
Custom builder for selected item chips |
selectedItemsWrap |
bool |
Wrap items or use horizontal scroll |
selectedItemsSpacing |
double |
Horizontal spacing between chips |
selectedItemsRunSpacing |
double |
Vertical spacing when wrapped |
selectedItemsPadding |
EdgeInsets |
Padding around selected items container |
Controller Methods:
// Access controller
final controller = SuperSearchMultiController<Product>(...);
// Check selection
controller.selectedItems; // List of selected items
controller.selectionCount; // Number of selected items
controller.hasSelectedItems; // Whether any items are selected
controller.isMaxSelectionsReached; // Whether max limit reached
controller.isItemSelected(item); // Check if specific item is selected
// Modify selection
controller.addItem(item); // Add item to selection
controller.removeItem(item); // Remove item from selection
controller.removeItemAt(index); // Remove item by index
controller.toggleItemSelection(item); // Toggle selection state
controller.clearAllSelections(); // Clear all selections
controller.setSelectedItems([...]); // Set selection programmatically
2.3.2 - 2025-12-28 #
Changed #
Parameter Rename: initialSelectedItem → initialSelectedValue 🔄
Renamed initialSelectedItem to initialSelectedValue for consistency and clarity.
// Before (v2.3.0 - v2.3.1)
SuperSearchDropdown<Product>.withProvider(
initialSelectedItem: preSelectedProduct,
// ...
)
// After (v2.3.2+)
SuperSearchDropdown<Product>.withProvider(
initialSelectedValue: preSelectedProduct,
// ...
)
Removed: initialValue Parameter ❌
The initialValue parameter (added in v2.3.1) has been removed. Use initialSelectedValue instead to pre-select an item.
SuperSearchTheme Auto-Detection 🎨
SuperSearchTheme.of(context) now automatically detects the system theme (light/dark) when no explicit theme extension is provided.
Before (v2.3.1):
// Always fell back to light theme
SuperSearchTheme.of(context); // → SuperSearchTheme.light()
After (v2.3.2):
// Now respects system brightness
SuperSearchTheme.of(context);
// → SuperSearchTheme.dark() if system is in dark mode
// → SuperSearchTheme.light() if system is in light mode
This means SuperSearch widgets will automatically adapt to the system theme without requiring explicit SuperSearchTheme.dark() or SuperSearchTheme.light() configuration.
2.3.1 - 2025-12-28 #
Added #
Enhanced SuperSearchDropdown Form Support 📝
New form-related features for SuperSearchDropdown to enable form validation and input formatting.
New Parameters:
| Parameter | Type | Description |
|---|---|---|
validator |
String? Function(String?)? |
Form validation function (enables TextFormField) |
textInputAction |
TextInputAction |
Keyboard action button (default: search) |
inputFormatters |
List<TextInputFormatter>? |
Input formatters for text formatting |
autovalidateMode |
AutovalidateMode? |
When to validate the input |
onChanged |
ValueChanged<String>? |
Called when text changes |
maxLength |
int? |
Maximum input length |
textCapitalization |
TextCapitalization |
Text capitalization behavior |
keyboardType |
TextInputType |
Type of keyboard to display |
Usage with Validation:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
validator: (value) {
if (value == null || value.isEmpty) {
return 'Please enter a search term';
}
return null;
},
autovalidateMode: AutovalidateMode.onUserInteraction,
textInputAction: TextInputAction.search,
)
Usage with Input Formatters:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
inputFormatters: [
FilteringTextInputFormatter.allow(RegExp(r'[a-zA-Z0-9\s]')),
LengthLimitingTextInputFormatter(50),
],
maxLength: 50,
textCapitalization: TextCapitalization.words,
)
2.3.0 - 2025-12-18 #
Added #
Show Selected Mode for SuperSearchDropdown 🎯
New showSelected feature that displays the selected item instead of the search box after selection.
Basic Usage:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
showSelected: true,
onItemSelected: (product) {
print('Selected: ${product.name}');
},
)
Custom Selected Item Display:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
showSelected: true,
selectedItemBuilder: (context, product, onClear) => Container(
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.primaryContainer,
borderRadius: BorderRadius.circular(12),
),
child: ListTile(
leading: CircleAvatar(child: Text(product.name[0])),
title: Text(product.name),
subtitle: Text('\$${product.price}'),
trailing: IconButton(
icon: Icon(Icons.close),
onPressed: onClear, // Clears selection and shows search box
),
),
),
)
With Initial Selection:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
showSelected: true,
initialSelectedItem: preSelectedProduct,
)
New Parameters:
| Parameter | Type | Description |
|---|---|---|
showSelected |
bool |
When true, shows selected item instead of search box |
selectedItemBuilder |
Widget Function(context, item, onClear)? |
Custom builder for selected item display |
initialSelectedItem |
T? |
Pre-selected item to display on widget load |
New Controller Methods:
// Get selected item
final item = controller.selectedItem;
// Check if item is selected
if (controller.hasSelectedItem) { ... }
// Set selected item programmatically
controller.setSelectedItem(product);
// Clear selection and show search box
controller.clearSelection();
controller.clearSelection(requestFocus: false); // Don't auto-focus
Behavior:
- When
showSelected: trueand an item is selected, the search box is replaced with the selected item display - Tapping on the selected item (or the clear button) clears the selection and shows the search box again
- The selected item is automatically styled using
SuperSearchThemecolors - If
selectedItemBuilderis not provided, a default display usingitemBuilderis used
2.2.0 - 2025-12-18 #
Added #
SuperSearchTheme - ThemeExtension Support 🎨
New powerful theming system for SuperSearch widgets using Flutter's ThemeExtension pattern.
Light & Dark Theme Support:
MaterialApp(
theme: ThemeData.light().copyWith(
extensions: [SuperSearchTheme.light()],
),
darkTheme: ThemeData.dark().copyWith(
extensions: [SuperSearchTheme.dark()],
),
)
Comprehensive Theme Properties:
| Category | Properties |
|---|---|
| Search Box | searchBoxBackgroundColor, searchBoxTextColor, searchBoxHintColor, searchBoxBorderColor, searchBoxFocusedBorderColor, searchBoxIconColor, searchBoxCursorColor, searchBoxBorderRadius, searchBoxElevation, searchBoxShadowColor |
| Overlay | overlayBackgroundColor, overlayBorderColor, overlayBorderRadius, overlayElevation, overlayShadowColor |
| Items | itemBackgroundColor, itemHoverColor, itemFocusedColor, itemSelectedColor, itemTextColor, itemSubtitleColor, itemIconColor, itemDividerColor |
| States | loadingIndicatorColor, emptyStateIconColor, emptyStateTextColor, errorIconColor, errorTextColor, errorButtonColor |
| Scrollbar | scrollbarColor, scrollbarThickness, scrollbarRadius |
Factory Constructors:
SuperSearchTheme.light()- Modern light theme with Indigo accent colorsSuperSearchTheme.dark()- Dark theme with purple accent colors
Accessing Theme:
// Get theme with fallback to light
final theme = SuperSearchTheme.of(context);
// Get theme or null
final theme = SuperSearchTheme.maybeOf(context);
Custom Theme Example:
SuperSearchTheme(
searchBoxBackgroundColor: Colors.grey[100],
searchBoxTextColor: Colors.black87,
searchBoxFocusedBorderColor: Colors.blue,
overlayBackgroundColor: Colors.white,
itemFocusedColor: Colors.blue.withValues(alpha:0.1),
itemHoverColor: Colors.grey[200],
loadingIndicatorColor: Colors.blue,
// ... more properties
)
Theme Interpolation:
- Full
lerpsupport for smooth theme transitions - Animated theme switching support
Changed #
- SuperSearchBox: Now uses
SuperSearchThemefor default styling - SuperSearchOverlay: Uses theme for overlay container, items, and state widgets
- _FocusableItem: Now supports hover color from theme
- Scrollbar: Added theme-aware scrollbar to results list
- Example App: Added theme toggle button in Search Dropdown screen
Updated #
- Version bumped to 2.2.0
- Package description updated to include ThemeExtension support
2.1.0 - 2025-12-18 #
Added #
Keyboard Navigation for SuperSearchDropdown ⌨️
Full keyboard navigation support for the search dropdown with focus state persistence.
Keyboard Shortcuts:
| Key | Action |
|---|---|
↓ Arrow Down |
Move focus to next item / Open overlay |
↑ Arrow Up |
Move focus to previous item / Open overlay |
Enter |
Select the focused item |
Escape |
Close the overlay |
Home |
Move focus to first item |
End |
Move focus to last item |
Page Down |
Move focus 5 items down |
Page Up |
Move focus 5 items up |
Key Features:
- Focus Persistence: Focus position is preserved when overlay is closed and reopened
- Visual Feedback: Focused item is highlighted with configurable decoration
- Auto-Scroll: List automatically scrolls to keep focused item visible
- Mouse Hover: Hovering over an item also updates focus
- Smooth Animations: Focus transitions with 100ms animation
New Controller Methods:
// Navigation
controller.moveToNextItem();
controller.moveToPreviousItem();
controller.moveToFirstItem();
controller.moveToLastItem();
controller.setFocusedIndex(index);
controller.clearItemFocus();
// Selection
controller.selectFocusedItem();
// Properties
controller.focusedIndex; // Current focused index (-1 if none)
controller.focusedItem; // Current focused item (null if none)
controller.hasItemFocus; // Whether an item is focused
Usage Example:
SuperSearchDropdown<Product>.withProvider(
// ... other properties
searchConfig: SuperSearchConfig(
clearOnClose: false, // Keep focus when closing
),
)
2.0.0 - 2025-12-18 #
Added #
SuperSearchBox - Search with Overlay Dropdown 🔍
New powerful search component that connects to SuperPaginationCubit for searching with an auto-positioning overlay dropdown.
New Classes:
SuperSearchBox<T>- Search input widget connected to pagination cubitSuperSearchOverlay<T>- Combines search box with overlay dropdownSuperSearchDropdown<T>- Convenient all-in-one search dropdown widgetSuperSearchController<T>- Controller for managing search stateSuperSearchConfig- Configuration for search behavior (debounce, min length, etc.)SuperSearchOverlayConfig- Configuration for overlay appearance and positioningOverlayPosition- Enum for overlay positioning (auto, top, bottom, left, right)OverlayPositioner- Utility for calculating optimal overlay position
Key Features:
- Auto-Positioning: Overlay automatically positions itself in the best available space
- Cubit Integration: Directly connected to SuperPaginationCubit for data fetching
- Debounced Search: Configurable delay to prevent excessive API calls
- Flexible Placement: Position overlay top, bottom, left, right, or auto
- Customizable: Full control over search box and overlay appearance
- Animations: Smooth show/hide animations with configurable duration
SuperSearchDropdown Constructors:
.withProvider()- Creates internal cubit with data provider.withCubit()- Uses externally managed cubit
Usage Examples #
// Simple search dropdown with provider
SuperSearchDropdown<Product>.withProvider(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future((request) async {
return await api.searchProducts(request.searchQuery ?? '');
}),
searchRequestBuilder: (query) => SuperPaginationRequest(
page: 1,
pageSize: 20,
searchQuery: query,
),
itemBuilder: (context, product) => ListTile(
title: Text(product.name),
subtitle: Text('\$${product.price}'),
),
onItemSelected: (product) {
Navigator.pop(context, product);
},
)
// With external cubit
final searchCubit = SuperPaginationCubit<Product, SuperPaginationRequest>(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(searchProducts),
);
SuperSearchDropdown<Product>.withCubit(
cubit: searchCubit,
searchRequestBuilder: (query) => SuperPaginationRequest(
page: 1,
pageSize: 20,
searchQuery: query,
),
itemBuilder: (context, product) => ListTile(
title: Text(product.name),
),
onItemSelected: (product) => print('Selected: ${product.name}'),
overlayConfig: SuperSearchOverlayConfig(
position: OverlayPosition.bottom, // Force bottom position
maxHeight: 400,
borderRadius: 12,
elevation: 8,
),
)
// Using SuperSearchBox and SuperSearchOverlay separately
final controller = SuperSearchController<Product>(
cubit: productsCubit,
searchRequestBuilder: (query) => SuperPaginationRequest(
page: 1,
pageSize: 20,
searchQuery: query,
),
config: SuperSearchConfig(
debounceDelay: Duration(milliseconds: 500),
minSearchLength: 2,
),
);
// Place search box in app bar
AppBar(
title: SuperSearchBox<Product>(
controller: controller,
decoration: InputDecoration(hintText: 'Search...'),
),
)
// Place overlay anywhere in your layout
SuperSearchOverlay<Product>(
controller: controller,
itemBuilder: (context, product) => ProductTile(product),
onItemSelected: selectProduct,
)
0.1.4 - 2025-12-18 #
Added #
Sorting & Orders Feature 📊
New powerful sorting functionality that allows programmatic control over item ordering:
Sorted Insertion (Performance Fix) ⚡
Item insertion methods now respect the active sort order by inserting items directly at the correct sorted position using binary search. This prevents visual flickering that occurred when items were added then re-sorted.
Improved Methods:
insertEmit()- Inserts items at correct sorted positioninsertAllEmit()- Uses efficient merge algorithm for batch insertionsaddOrUpdateEmit()- Positions new items correctly; repositions updated items if sort field changedupdateItemEmit()- Repositions item if sort field changesupdateWhereEmit()- Batch repositions multiple updated items efficiently
Benefits:
- No Visual Flickering: Items appear directly in their final position
- Efficient Algorithm: Binary search for single insertions, merge sort for batches
- Automatic: Works transparently when sort order is active
- Backward Compatible: Falls back to index-based insertion when no sorting is active
New Classes:
SortOrder<T>- Defines how items should be sortedSortOrderCollection<T>- Manages multiple sort orders with an active selectionSortDirection- Enum for ascending/descending direction
Cubit Constructor Parameter:
orders: SortOrderCollection<T>?- Set initial sorting configuration
New Cubit Methods:
setActiveOrder(String orderId)- Change the active sort orderresetOrder()- Reset to default sort orderclearOrder()- Remove sorting (show original order)addSortOrder(SortOrder<T> order)- Add a new sort order dynamicallyremoveSortOrder(String orderId)- Remove a sort ordersortBy(ItemComparator<T> comparator)- One-time sort with custom comparatorsetOrders(SortOrderCollection<T>? orders)- Replace entire orders collection
New Cubit Properties:
orders- Get current sort order collectionactiveOrder- Get currently active sort orderactiveOrderId- Get ID of active sort orderavailableOrders- Get list of all available sort orders
State Updates:
SuperPaginationLoaded.activeOrderId- Track current sort order in state
Usage Examples #
// Define sort orders
final orders = SortOrderCollection<Product>(
orders: [
SortOrder.byField(
id: 'name',
label: 'Name (A-Z)',
fieldSelector: (p) => p.name,
direction: SortDirection.ascending,
),
SortOrder.byField(
id: 'price_low',
label: 'Price: Low to High',
fieldSelector: (p) => p.price,
direction: SortDirection.ascending,
),
SortOrder.byField(
id: 'price_high',
label: 'Price: High to Low',
fieldSelector: (p) => p.price,
direction: SortDirection.descending,
),
SortOrder<Product>(
id: 'custom',
label: 'Custom Sort',
comparator: (a, b) => a.rating.compareTo(b.rating),
),
],
defaultOrderId: 'name',
);
// Create cubit with orders
final cubit = SuperPaginationCubit<Product, SuperPaginationRequest>(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
orders: orders,
);
// Change sort order programmatically
cubit.setActiveOrder('price_low'); // Sort by price ascending
cubit.setActiveOrder('price_high'); // Sort by price descending
cubit.resetOrder(); // Reset to default (name)
cubit.clearOrder(); // Remove sorting
// Add new sort order dynamically
cubit.addSortOrder(SortOrder.byField(
id: 'newest',
label: 'Newest First',
fieldSelector: (p) => p.createdAt,
direction: SortDirection.descending,
));
// One-time custom sort
cubit.sortBy((a, b) => a.stock.compareTo(b.stock));
// Access current order in state
if (state is SuperPaginationLoaded<Product>) {
print('Current sort: ${state.activeOrderId}');
}
0.1.3 - 2025-12-17 #
Added #
Specialized Widget Classes 🎯
New dedicated widget classes for each view type, providing cleaner and more intuitive API:
New Widget Classes:
SuperPaginationListView- Paginated ListView widgetSuperPaginationGridView- Paginated GridView widgetSuperPaginationColumn- Paginated non-scrollable Column layoutSuperPaginationRow- Paginated non-scrollable Row layoutSuperPaginationPageView- Paginated PageView widgetSuperPaginationStaggeredGridView- Paginated Pinterest-style masonry layoutSuperPaginationReorderableListView- Paginated drag-and-drop reorderable list
Each widget class provides:
.withProvider()constructor - Creates cubit internally with data provider.withCubit()constructor - Uses externally managed cubit
Benefits:
- Clearer Intent: Each widget class explicitly states its layout type
- Better IDE Support: Autocomplete shows relevant parameters for each view type
- Reduced Confusion: No need to specify
itemBuilderTypeparameter - Same Functionality: All features from
SuperPaginationare available
Usage Examples #
// Before (using SuperPagination with named constructors)
SuperPagination.listViewWithProvider(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
itemBuilder: (context, items, index) => ProductTile(items[index]),
)
// After (using specialized widget class)
SuperPaginationListView.withProvider(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
itemBuilder: (context, items, index) => ProductTile(items[index]),
)
// GridView example
SuperPaginationGridView.withProvider(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),
itemBuilder: (context, items, index) => ProductCard(items[index]),
)
// External cubit example
final cubit = SuperPaginationCubit<Product, SuperPaginationRequest>(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
dataAge: Duration(minutes: 5),
);
SuperPaginationListView.withCubit(
cubit: cubit,
itemBuilder: (context, items, index) => ProductTile(items[index]),
)
Note #
The original SuperPagination class with named constructors remains available for backward compatibility. Both approaches work identically - choose the style that best fits your preferences.
0.1.2 - 2025-12-17 #
Added #
Data Age & Automatic Expiration ⏰
New feature for automatic data invalidation and refresh when using cubit as a global variable:
New Parameters:
dataAge: Duration?- Configure how long data remains valid after fetching
New Properties on SuperPaginationCubit:
dataAge- Get the configured data age durationlastFetchTime- Get the timestamp of the last successful data fetchisDataExpired- Check if data has expired based on the configured dataAgecheckAndResetIfExpired()- Check expiration and reset if expired (returnstrueif reset)
New Properties on SuperPaginationLoaded State:
fetchedAt: DateTime?- Timestamp when data was initially fetcheddataExpiredAt: DateTime?- Timestamp when data will expire (null if no expiration)
Automatic Behavior:
- When
fetchPaginatedList()is called, it automatically checks if data has expired - If expired, the cubit resets to initial state and triggers a fresh data load
- Perfect for global cubits that persist across screen navigations
- Timer refreshes on any data interaction: insert, update, remove, load more
- This ensures active users don't experience unexpected data resets
Usage Example #
// Create a global cubit with 5-minute data age
final productsCubit = SuperPaginationCubit<Product, SuperPaginationRequest>(
request: SuperPaginationRequest(page: 1, pageSize: 20),
provider: SuperPaginationProvider.future(fetchProducts),
dataAge: Duration(minutes: 5), // Data expires after 5 minutes
);
// When re-entering the screen, data is automatically refreshed if expired
// Or manually check expiration:
if (productsCubit.isDataExpired) {
print('Data is stale, will refresh on next fetch');
}
// Access expiration info from state
if (state is SuperPaginationLoaded<Product>) {
print('Data fetched at: ${state.fetchedAt}');
print('Data expires at: ${state.dataExpiredAt}');
}
0.1.1 - 2025-12-17 #
Added #
Cubit Data Operations 🎛️
New programmatic data operations accessible from anywhere in your app via the cubit:
Insert Operations:
insertEmit(item, {index})- Insert a single item at specified index (default: 0)insertAllEmit(items, {index})- Insert multiple items at specified index
Remove Operations:
removeItemEmit(item)- Remove an item by reference, returnstrueif foundremoveAtEmit(index)- Remove item at index, returns the removed item ornullremoveWhereEmit(test)- Remove all items matching predicate, returns count removed
Update Operations:
updateItemEmit(matcher, updater)- Update first matching item, returnstrueif updatedupdateWhereEmit(matcher, updater)- Update all matching items, returns count updated
Other Operations:
clearItems()- Clear all items from the listreload()- Reload data from the beginning (alias forrefreshPaginatedList)setItems(items)- Set the list to a completely new set of itemscurrentItems- Getter to access current list of items (read-only)
Example App
- Data Operations Screen - New example demonstrating all cubit data operations:
- Interactive buttons to test each operation
- Long-press to remove items
- Visual feedback for all operations
Usage Examples #
// Get the cubit reference
final cubit = SuperPaginationCubit<Product, SuperPaginationRequest>(...);
// Insert operations
cubit.insertEmit(newProduct);
cubit.insertEmit(newProduct, index: 5);
cubit.insertAllEmit([product1, product2, product3]);
// Remove operations
cubit.removeItemEmit(productToRemove);
cubit.removeAtEmit(0); // Remove first item
cubit.removeWhereEmit((item) => item.price > 100); // Remove expensive items
// Update operations
cubit.updateItemEmit(
(item) => item.id == '123',
(item) => item.copyWith(price: item.price * 0.9), // Apply discount
);
cubit.updateWhereEmit(
(item) => item.category == 'sale',
(item) => item.copyWith(price: item.price * 0.8),
);
// Other operations
cubit.clearItems();
cubit.reload();
cubit.setItems(customProductList);
// Access current items
final items = cubit.currentItems;
print('Total items: ${items.length}');
0.1.0 - 2025-12-01 #
Added #
- New Constructor:
SuperPagination.columnandSuperPagination.columnWithCubitfor non-scrollable column layouts. - External Cubit Support: Added
...WithCubitnamed constructors for all view types (listViewWithCubit,gridViewWithCubit,pageViewWithCubit,staggeredGridViewWithCubit,rowWithCubit) to easily use externally created Cubits. - Exposed Parameters: Added missing parameters to all convenience constructors:
scrollController: For external scroll control.cacheExtent: For viewport caching customization.invisibleItemsThreshold: For configuring smart preloading.- State Builders:
firstPageLoadingBuilder,firstPageErrorBuilder,firstPageEmptyBuilder,loadMoreLoadingBuilder,loadMoreErrorBuilder,loadMoreNoMoreItemsBuilder.
Breaking Changes ⚠️ #
-
Constructor Renaming:
SuperPagination(...)is nowSuperPagination.withProvider(...).SuperPagination.cubit(...)is nowSuperPagination.withCubit(...).- All named constructors now have explicit suffixes:
listView->listViewWithProvider/listViewWithCubitgridView->gridViewWithProvider/gridViewWithCubitpageView->pageViewWithProvider/pageViewWithCubitstaggeredGridView->staggeredGridViewWithProvider/staggeredGridViewWithCubitcolumn->columnWithProvider/columnWithCubitrow->rowWithProvider/rowWithCubitreorderableListView->reorderableListViewWithProvider/reorderableListViewWithCubit
-
Removed Convenience Widgets:
SuperPaginatedListViewandSuperPaginatedGridViewhave been removed. UseSuperPaginationdirectly. -
API Unification:
childBuilderis renamed toitemBuilder.itemBuildersignature changed from(context, item, index)to(context, items, index). You must now access the item usingitems[index].
-
Configuration:
- Use
itemBuilderType: PaginateBuilderType.gridViewfor grid layouts. - Use
itemBuilderType: PaginateBuilderType.listView(default) for list layouts.
- Use
Changed #
- Updated all example screens to use the new constructor names.
- Improved API clarity by explicitly distinguishing between
Provider(internal Cubit creation) andCubit(external Cubit injection) usage. - Updated
SuperPaginationto be the single entry point for all pagination types. - Updated
emptyWidget,loadingWidget, andbottomLoaderto acceptWidgetdirectly. - Updated
separatorto acceptWidgetdirectly.
0.0.6 - 2025-11-30 #
Added #
- Documentation preparation for pub.dev publication
- Comprehensive example screens section in README (28 screens documented)
- Screenshot infrastructure with placeholder guides
- Screenshots directory structure (
basic/,streams/,advanced/,errors/)
Changed #
- Enhanced README.md for pub.dev with professional presentation
- Added "Why Super Pagination?" section highlighting key benefits
- Added comprehensive Table of Contents
- Reorganized content with clear visual separators
- Added detailed documentation for all 28 example screens
- Added Features Comparison table vs other libraries
- Added Use Cases section (E-commerce, Social Media, Content Apps, etc.)
- Added Learning Resources section
- Enhanced API Reference section
- Added Best Practices section with code examples
- Total: 2,100+ lines of comprehensive documentation
- Updated pubspec.yaml description for better pub.dev visibility
- Highlights: BLoC state management, 6+ view types, advanced error handling
- Emphasizes: Zero boilerplate, type-safe, well-tested (60+ tests)
Documentation #
- Created
screenshots/README.md- Complete guide for capturing screenshots - Created category-specific guides (
PLACEHOLDER.mdfiles) - Added instructions for Flutter DevTools, command line, and automation
- Included image optimization guide and Git LFS setup
0.0.5 - 2025-11-02 #
Added #
Unified Provider Pattern 🔄
- SuperPaginationProvider Sealed Class: Type-safe unified provider pattern
SuperPaginationProvider.future()for REST API paginationSuperPaginationProvider.stream()for real-time updatesSuperPaginationProvider.mergeStreams()for combining multiple streams- Single provider parameter replaces separate
dataProviderandstreamProvider - Pattern matching with switch expressions for type safety
- Legacy typedefs maintained for backward compatibility
Merged Streams Support 🔀
- MergedStreamSuperPaginationProvider: Merge multiple data streams
- Combines streams into a single unified stream
- Emits data whenever any source stream emits
- Perfect for aggregating data from multiple sources
- Automatic stream lifecycle management
- Example Implementation: Merged streams demo screen
- Real-time updates from 3 different streams
- Visual indicators for each stream source
Stream Examples 📡
- Single Stream Example: Real-time product list with live price updates
- Products update every 3 seconds
- Visual indicators for streaming data
- Multi Stream Example: Multiple streams with different update rates
- Three stream sources with different intervals (3s, 4s, 5s)
- Tab navigation between streams
- Dynamic stream switching
- Color-coded badges
Advanced Error Handling 🛡️
- CustomErrorBuilder: 6 pre-built error widget styles
CustomErrorBuilder.material()- Full-screen Material Design errorCustomErrorBuilder.compact()- Inline compact errorCustomErrorBuilder.card()- Elevated card-style errorCustomErrorBuilder.minimal()- Simple text-based errorCustomErrorBuilder.snackbar()- Bottom notification errorCustomErrorBuilder.custom()- Fully custom error builder
- Error State Separation: Different UI for first page vs load more errors
firstPageErrorBuilder- Full-screen error for initial loadloadMoreErrorBuilder- Compact error for pagination
- Error Recovery Strategies: 5 recovery patterns demonstrated
- Cached data fallback
- Partial data display
- Alternative source switching
- User-initiated recovery
- Graceful degradation
Error Examples (7 New Screens) 🐛
- Basic Error Handling - Simple retry with progressive counter
- Network Errors - Different error types (timeout, 404, 500, 401)
- Retry Patterns - Manual, auto, exponential backoff, limited retries
- Custom Error Widgets - All 6 error widget styles demonstrated
- Error Recovery - 4 recovery strategies (cached, partial, alternative, user)
- Graceful Degradation - 3 degradation strategies (offline, placeholders, limited)
- Load More Errors - 3 load-more patterns (compact, inline, silent)
Error Images Infrastructure 🎨
- ErrorImages Helper Class: Easy image integration with fallback icons
- 12 pre-configured image methods (general, network, 404, 500, timeout, etc.)
- Automatic fallback to icons if images fail to load
- Customizable width, height, and fallback colors
- Documentation:
docs/ERROR_IMAGES_SETUP.md- Free illustration sources guide (unDraw, Storyset, DrawKit)
- Download helper script
- Image specifications and optimization
- Troubleshooting guide
Changed #
API Improvements
- SuperPagination: Updated to unified
SuperPaginationProvider<T>parameter- Removed separate
dataProviderandstreamProvider - Single
providerparameter accepts both Future and Stream - Added
retryConfigparameter support - Cleaner, more intuitive API
- Removed separate
- Convenience Widgets: Updated to unified provider pattern
SuperPaginatedListViewusesproviderparameterSuperPaginatedGridViewusesproviderparameter- Added error builder parameters (
firstPageErrorBuilder,loadMoreErrorBuilder)
Documentation Updates
- Updated README.md for unified provider pattern
- Added comprehensive error handling documentation
- Updated all code examples to use
SuperPaginationProvider - Added error handling guide:
docs/ERROR_HANDLING.md
Removed #
DualPagination (Grouped Pagination) - Complete Removal
- Removed all DualPagination functionality to simplify library focus
- Deleted
lib/dual_pagination/directory - Removed DualPagination tests and examples
- Updated documentation to remove DualPagination references
Migration Guide #
From v0.0.4 (dataProvider/streamProvider) to v0.0.5 (unified provider):
// Before (v0.0.4)
SuperPagination<Product, SuperPaginationRequest>(
dataProvider: (request) => apiService.fetchProducts(request),
...
)
// After (v0.0.5)
SuperPagination<Product, SuperPaginationRequest>(
provider: SuperPaginationProvider.future(
(request) => apiService.fetchProducts(request),
),
...
)
For Stream-based pagination:
// Before
SuperPagination<Product, SuperPaginationRequest>(
streamProvider: (request) => apiService.productsStream(request),
...
)
// After
SuperPagination<Product, SuperPaginationRequest>(
provider: SuperPaginationProvider.stream(
(request) => apiService.productsStream(request),
),
...
)
Benefits #
- Type Safety: Sealed classes ensure compile-time checking
- Cleaner API: Single provider instead of two parameters
- Better Intent: Clear distinction between Future and Stream
- Production-Ready: Advanced error handling out of the box
- Well Tested: 60+ unit tests
0.0.4 - 2025-10-31 #
Added #
Convenience Widgets 🛠️
- SuperPaginatedListView: Simplified ListView pagination widget
- Cleaner API with direct
childBuilder - Optional
separatorBuilder,emptyBuilder,errorBuilder - Built-in retry configuration support
- 40-60% less boilerplate code
- Cleaner API with direct
- SuperPaginatedGridView: Simplified GridView pagination widget
- Dedicated
gridDelegateconfiguration - Direct
childBuilderfor grid items - Full pagination features with less code
- Dedicated
- DualPaginatedListView: Simplified grouped ListView pagination
- Easy group-based pagination
- Simplified
groupKeyGenerator - Direct
groupHeaderBuilderandchildBuilder
Example App 🎨
- Complete Example Application with 5 demonstration screens:
- Basic ListView - Simple paginated product list
- GridView - Product grid with pagination
- Retry Demo - Automatic retry on errors
- Filter & Search - Real-time filtering with search
- Grouped Messages - Messages grouped by date
- Mock API Service: Network delay simulation, error simulation
- Example Models: Product and Message with JSON serialization
Enhanced #
- Developer Experience: 40-60% reduction in boilerplate code
- Example-Driven Learning: Complete runnable examples
- Better API Design: More intuitive method names
0.0.3 - 2025-10-31 #
Added #
Comprehensive Test Suite 🧪
- 60+ Unit Tests covering all core functionality
- Data Model Tests: SuperPaginationMeta (12 tests), SuperPaginationRequest (8 tests)
- Error Handling Tests: RetryConfig, RetryHandler, PaginationException
- Cubit Tests: SuperPaginationCubit (14 tests), DualPaginationCubit (12 tests)
- Test Infrastructure: Test models, factories, proper organization
Testing Coverage #
- ✅ SuperPaginationMeta (100%)
- ✅ SuperPaginationRequest (100%)
- ✅ RetryConfig (100%)
- ✅ RetryHandler (95%)
- ✅ PaginationException classes (100%)
- ✅ SuperPaginationCubit (85%)
- ✅ DualPaginationCubit (80%)
Dependencies #
- Added
bloc_test: ^9.1.5for BLoC testing - Added
mocktail: ^1.0.1for mocking
0.0.2 - 2025-10-31 #
Added #
Dual Pagination (Grouped Pagination)
- DualPaginationCubit<Key, T>: Managing grouped state
- Flexible Grouping: Custom
KeyGeneratorfunction - Group Headers: Customizable group header builder
- Real-time Updates: Stream support for grouped data
Retry Mechanism & Error Handling
- RetryConfig: Configurable retry behavior with exponential backoff
- Max attempts (default: 3)
- Initial delay (default: 1s)
- Max delay (default: 10s)
- Custom retry conditions
- Timeout Handling: Built-in timeout support (default: 30s)
- Custom Exceptions:
PaginationTimeoutExceptionPaginationNetworkExceptionPaginationParseExceptionPaginationRetryExhaustedException
- RetryHandler Utility: Automatic retry execution with logging
Enhanced #
- Improved error logging with retry attempt information
- Exponential backoff prevents API rate limiting
0.0.1 - 2025-10-31 #
Added #
Core Features
- Initial release of Super Pagination library
- SuperPagination widget with multiple layout support:
- ListView with separators
- GridView with configurable delegates
- PageView for swipeable content
- StaggeredGridView for masonry layouts
- Column/Row layouts
State Management
- SuperPaginationCubit: BLoC pattern implementation
- Three state types:
Initial,Loaded,Error - SuperPaginationMeta: Metadata tracking
- SuperPaginationRequest: Pagination configuration
Advanced Features
- Cursor-based and offset-based pagination
- Stream provider for real-time updates
- Memory management with
maxPagesInMemory - Filter, refresh, and order listeners
- Custom list builder for transformations
beforeBuildhook for pre-render transformations
Controller
- SuperPaginationController: Scroll capabilities
- Programmatic scrolling:
scrollToIndex(),scrollToItem()
UI Components
BottomLoader- pagination loading indicatorInitialLoader- initial loading stateEmptyDisplay- empty state widgetErrorDisplay- error state widget
Developer Experience
- Type-safe generic support
- Custom error handling with callbacks
- Comprehensive in-code documentation
- Multiple named constructors
Dependencies #
flutter_bloc: ^9.1.1- State managementflutter_staggered_grid_view: ^0.7.0- Staggered layoutslogger: ^2.6.2- Logging supportprovider: ^6.1.5+1- Listener managementscrollview_observer: ^1.26.2- Scroll observation
Documentation #
- Comprehensive README.md with examples
- API reference and best practices
- Contributing guidelines
- Library-level documentation
Future Releases #
Planned Features #
- ❌ Widget and integration tests
- ❌ Code coverage reporting
- ❌ Pull-to-refresh built-in widget support
- ❌ Performance benchmarks
- ❌ Video tutorials
- ❌ CI/CD pipeline
- ❌ pub.dev publication
For more information, visit the GitHub repository.