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Description:

search highlight text

Simple Inherited Widget to highlight text in a search result, with custom highlight Color and highlight TextStyle.
Features #

Highlight text in a search result with custom highlight Color and highlight TextStyle.
Highlight text in a search result without prasing the search text directly.
Parse the search text as a regular expression.

Usage #
SearchTextInheritedWidget(
searchText: 'search text',
child: SearchHighlightText('text to highlight'),
),

// or
SearchTextInheritedWidget(
// you can use any RegExp here, like RegExp('[1-9]'), RegExp('search text with RegExp', caseSensitive: false), etc.
searchRegExp: RegExp('search text with RegExp'),
child: SearchHighlightText('text to highlight'),
),
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you can also use SearchHighlightText directly, but you need to provide the searchText or searchRegExp to it.
SearchHighlightText(
'text to highlight',
searchText: 'search text',
),
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Example #
See full example in repo.
// search_view.dart

class SearchView extends ConsumerWidget {
const SearchView({Key? key}) : super(key: key);

@override
Widget build(BuildContext context, WidgetRef ref) {
var controller = ref.watch(searchController);

return GestureDetector(
onTap: () {
FocusManager.instance.primaryFocus?.unfocus();
},
child: Scaffold(
backgroundColor: Colors.grey[100],
appBar: AppBar(
title: const Text('Search Movies Example'),
),
body: Column(
children: [
const SizedBox(
height: 10,
),
SearchField(
controller: controller,
),
Expanded(
child: controller.isLoading
? const Center(
child: CircularProgressIndicator(),
)
: SearchTextInheritedWidget(
searchText: controller
.searchText, // <-- Here we pass the search text to the widget tree to be used by the SearchHighlightText widget
child: ListMoviesWidget(
listMovies: controller.movies,
),
),
),
],
),
),
);
}
}
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// movie_card.dart

class MovieCard extends StatelessWidget {
const MovieCard({Key? key, required this.movie}) : super(key: key);

final MovieModel movie;

@override
Widget build(BuildContext context) {
return Card(
child: ListTile(
title: SearchHighlightText( // <-- Here we use the SearchHighlightText widget to highlight the search text (if any) in the movie title
movie.title,
),
subtitle: Text(movie.year),
leading: SizedBox(
width: 100,
child: Image.network(
movie.posterUrl,
fit: BoxFit.cover,
errorBuilder: (context, error, stackTrace) {
return const Icon(Icons.error);
},
),
),
),
);
}
}

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