emoji_text.dart
1.31 KB
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import 'package:extended_text_library/extended_text_library.dart';
import 'package:flutter/material.dart';
///emoji/image text
class EmojiText extends SpecialText {
EmojiText(TextStyle? textStyle, {this.start})
: super(EmojiText.flag, ']', textStyle);
static const String flag = '[';
final int? start;
@override
InlineSpan finishText() {
final String key = toString();
if (EmojiUitl.instance.emojiMap.containsKey(key)) {
double size = 18;
final TextStyle ts = textStyle!;
if (ts.fontSize != null) {
size = ts.fontSize! * 1.15;
}
return ImageSpan(
AssetImage(
EmojiUitl.instance.emojiMap[key]!,
),
actualText: key,
imageWidth: size,
imageHeight: size,
start: start!,
//fit: BoxFit.fill,
margin: const EdgeInsets.all(2));
}
return TextSpan(text: toString(), style: textStyle);
}
}
class EmojiUitl {
EmojiUitl._() {
for (int i = 1; i < 49; i++) {
_emojiMap['[$i]'] = '$_emojiFilePath/add_store.png';
}
}
final Map<String, String> _emojiMap = <String, String>{};
Map<String, String> get emojiMap => _emojiMap;
final String _emojiFilePath = 'assets';
static EmojiUitl? _instance;
static EmojiUitl get instance => _instance ??= EmojiUitl._();
}