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 "package:collection/collection.dart";
import "package:fast_immutable_collections/fast_immutable_collections.dart";
import "package:flutter_hooks/flutter_hooks.dart";
import "package:hooks_riverpod/hooks_riverpod.dart";
@ -126,32 +127,33 @@ class EmojiPicker extends HookConsumerWidget {
padding: .only(bottom: 12),
scrollDirection: .horizontal,
controller: categoryScrollController,
children: [
for (final (index, category) in combined.indexed)
Padding(
key: chipKeys[index],
padding: .symmetric(horizontal: 4),
child: FilterChip(
label: Text(category.name),
avatar: category.icon,
selected: selectedCategory.value == index,
showCheckmark: false,
onSelected: (_) {
selectedCategory.value = index;
final headerContext =
headerKeys[index].currentContext;
if (headerContext != null) {
Scrollable.ensureVisible(
headerContext,
duration: Duration(milliseconds: 300),
curve: Curves.easeInOut,
alignment: 0,
);
}
},
children: combined
.mapIndexed(
(index, category) => Padding(
key: chipKeys[index],
padding: .symmetric(horizontal: 4),
child: FilterChip(
label: Text(category.name),
avatar: category.icon,
selected: selectedCategory.value == index,
showCheckmark: false,
onSelected: (_) {
selectedCategory.value = index;
final headerContext =
headerKeys[index].currentContext;
if (headerContext != null) {
Scrollable.ensureVisible(
headerContext,
duration: Duration(milliseconds: 300),
curve: Curves.easeInOut,
alignment: 0,
);
}
},
),
),
),
],
)
.toList(),
),
),
),
@ -159,71 +161,75 @@ class EmojiPicker extends HookConsumerWidget {
child: CustomScrollView(
key: scrollViewKey,
controller: scrollController,
slivers: [
for (final (index, category) in combined.indexed)
Builder(
builder: (context) {
final headerKey = headerKeys[index];
final emojis = search.value.isEmpty
? category.emojis
: category.emojis
.where(
(emoji) =>
emoji.aliases.join().contains(
search.value,
) ||
emoji.description.contains(
search.value,
) ||
emoji.tags.join().contains(
search.value,
),
)
.toIList();
slivers: combined
.mapIndexed(
(index, category) => Builder(
builder: (context) {
final headerKey = headerKeys[index];
final emojis = search.value.isEmpty
? category.emojis
: category.emojis
.where(
(emoji) =>
emoji.aliases.join().contains(
search.value,
) ||
emoji.description.contains(
search.value,
) ||
emoji.tags.join().contains(
search.value,
),
)
.toIList();
if (emojis.isEmpty) {
return SliverToBoxAdapter(
child: SizedBox.shrink(key: headerKey),
);
}
if (emojis.isEmpty) {
return SliverToBoxAdapter(
child: SizedBox.shrink(key: headerKey),
);
}
return SliverMainAxisGroup(
slivers: [
SliverToBoxAdapter(
child: Text(
key: headerKey,
category.name,
style: Theme.of(context)
.textTheme
.titleMedium,
return SliverMainAxisGroup(
slivers: [
SliverToBoxAdapter(
child: Text(
key: headerKey,
category.name,
style: Theme.of(context)
.textTheme
.titleMedium,
),
),
),
SliverGrid.builder(
gridDelegate:
const SliverGridDelegateWithMaxCrossAxisExtent(
maxCrossAxisExtent: 56,
mainAxisExtent: 56,
),
itemCount: emojis.length,
itemBuilder: (context, index) {
final emoji = emojis[index];
SliverGrid.builder(
gridDelegate:
const SliverGridDelegateWithMaxCrossAxisExtent(
maxCrossAxisExtent: 56,
mainAxisExtent: 56,
),
itemCount: emojis.length,
itemBuilder: (context, index) {
final emoji = emojis[index];
return IconButton(
padding: EdgeInsets.zero,
onPressed: () => onSelection(emoji.value),
icon: SizedBox.square(
dimension: 36,
child: FittedBox(child: emoji.widget),
),
);
},
),
SliverToBoxAdapter(child: SizedBox(height: 4)),
],
);
},
),
],
return IconButton(
padding: EdgeInsets.zero,
onPressed: () =>
onSelection(emoji.value),
icon: SizedBox.square(
dimension: 36,
child: FittedBox(child: emoji.widget),
),
);
},
),
SliverToBoxAdapter(
child: SizedBox(height: 4),
),
],
);
},
),
)
.toList(),
),
),
],