extractMentions function
Extract mentions (@username) from the text
Implementation
List<String> extractMentions(String value) {
const decoratedTextColor = Colors.purple;
final detector = Detector(
textStyle: const TextStyle(),
decoratedStyle: const TextStyle(color: decoratedTextColor),
decorateAtSign: true);
final detections = detector.getDetections(value);
final taggedDetections = detections
.where((detection) => detection.style!.color == decoratedTextColor)
.toList();
final result = taggedDetections
.map((decoration) => decoration.range.textInside(value).trim())
.where((text) => text.startsWith('@'))
.toList();
return result;
}