Henry-Hiles/material_emoji_picker
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replace for ... in with mapIndexed where possible

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This commit is contained in:
Henry Hiles 2026-09-17 11:16:41 -04:00
commit 08cf09ecc2
Signed by: Henry-Hiles
SSH key fingerprint: SHA256:VKQUdS31Q90KvX7EkKMHMBpUspcmItAh86a+v7PGiIs
1 changed files with 95 additions and 89 deletions
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178
lib/src/widgets/emoji_picker.dart
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@ -1,5 +1,6 @@
import "dart:async"; import "dart:async";
import "package:collection/collection.dart";
import "package:fast_immutable_collections/fast_immutable_collections.dart"; import "package:fast_immutable_collections/fast_immutable_collections.dart";
import "package:flutter_hooks/flutter_hooks.dart"; import "package:flutter_hooks/flutter_hooks.dart";
import "package:hooks_riverpod/hooks_riverpod.dart"; import "package:hooks_riverpod/hooks_riverpod.dart";
@ -126,32 +127,33 @@ class EmojiPicker extends HookConsumerWidget {
padding: .only(bottom: 12), padding: .only(bottom: 12),
scrollDirection: .horizontal, scrollDirection: .horizontal,
controller: categoryScrollController, controller: categoryScrollController,
children: [ children: combined
for (final (index, category) in combined.indexed) .mapIndexed(
Padding( (index, category) => Padding(
key: chipKeys[index], key: chipKeys[index],
padding: .symmetric(horizontal: 4), padding: .symmetric(horizontal: 4),
child: FilterChip( child: FilterChip(
label: Text(category.name), label: Text(category.name),
avatar: category.icon, avatar: category.icon,
selected: selectedCategory.value == index, selected: selectedCategory.value == index,
showCheckmark: false, showCheckmark: false,
onSelected: (_) { onSelected: (_) {
selectedCategory.value = index; selectedCategory.value = index;
final headerContext = final headerContext =
headerKeys[index].currentContext; headerKeys[index].currentContext;
if (headerContext != null) { if (headerContext != null) {
Scrollable.ensureVisible( Scrollable.ensureVisible(
headerContext, headerContext,
duration: Duration(milliseconds: 300), duration: Duration(milliseconds: 300),
curve: Curves.easeInOut, curve: Curves.easeInOut,
alignment: 0, alignment: 0,
); );
} }
}, },
),
), ),
), )
], .toList(),
), ),
), ),
), ),
@ -159,71 +161,75 @@ class EmojiPicker extends HookConsumerWidget {
child: CustomScrollView( child: CustomScrollView(
key: scrollViewKey, key: scrollViewKey,
controller: scrollController, controller: scrollController,
slivers: [ slivers: combined
for (final (index, category) in combined.indexed) .mapIndexed(
Builder( (index, category) => Builder(
builder: (context) { builder: (context) {
final headerKey = headerKeys[index]; final headerKey = headerKeys[index];
final emojis = search.value.isEmpty final emojis = search.value.isEmpty
? category.emojis ? category.emojis
: category.emojis : category.emojis
.where( .where(
(emoji) => (emoji) =>
emoji.aliases.join().contains( emoji.aliases.join().contains(
search.value, search.value,
) || ) ||
emoji.description.contains( emoji.description.contains(
search.value, search.value,
) || ) ||
emoji.tags.join().contains( emoji.tags.join().contains(
search.value, search.value,
), ),
) )
.toIList(); .toIList();
if (emojis.isEmpty) { if (emojis.isEmpty) {
return SliverToBoxAdapter( return SliverToBoxAdapter(
child: SizedBox.shrink(key: headerKey), child: SizedBox.shrink(key: headerKey),
); );
} }
return SliverMainAxisGroup( return SliverMainAxisGroup(
slivers: [ slivers: [
SliverToBoxAdapter( SliverToBoxAdapter(
child: Text( child: Text(
key: headerKey, key: headerKey,
category.name, category.name,
style: Theme.of(context) style: Theme.of(context)
.textTheme .textTheme
.titleMedium, .titleMedium,
),
), ),
), SliverGrid.builder(
SliverGrid.builder( gridDelegate:
gridDelegate: const SliverGridDelegateWithMaxCrossAxisExtent(
const SliverGridDelegateWithMaxCrossAxisExtent( maxCrossAxisExtent: 56,
maxCrossAxisExtent: 56, mainAxisExtent: 56,
mainAxisExtent: 56, ),
), itemCount: emojis.length,
itemCount: emojis.length, itemBuilder: (context, index) {
itemBuilder: (context, index) { final emoji = emojis[index];
final emoji = emojis[index];
return IconButton( return IconButton(
padding: EdgeInsets.zero, padding: EdgeInsets.zero,
onPressed: () => onSelection(emoji.value), onPressed: () =>
icon: SizedBox.square( onSelection(emoji.value),
dimension: 36, icon: SizedBox.square(
child: FittedBox(child: emoji.widget), dimension: 36,
), child: FittedBox(child: emoji.widget),
); ),
}, );
), },
SliverToBoxAdapter(child: SizedBox(height: 4)), ),
], SliverToBoxAdapter(
); child: SizedBox(height: 4),
}, ),
), ],
], );
},
),
)
.toList(),
), ),
), ),
], ],