add file

lib/components/markdown.dart

@@ -0,0 +1,32 @@
+import 'package:flutter_markdown/flutter_markdown.dart' as md;
+import '../common/high_light_code.dart';
+import 'package:flutter/material.dart';
+
+/// 使用方法
+/// MarkdownBody(markdown)
+final hightlighter = new HighLight();
+class HighLight extends md.SyntaxHighlighter {
+  @override
+  TextSpan format(String source) {
+    // TODO: implement format
+    final SyntaxHighlighterStyle style = SyntaxHighlighterStyle.lightThemeStyle();
+    return TextSpan(
+        style: const TextStyle(fontSize: 10.0),
+        children: <TextSpan>[
+          DartSyntaxHighlighter(style).format(source)
+        ]
+    );
+  }
+}
+
+
+
+class MarkdownBody extends StatelessWidget {
+  String data;
+  MarkdownBody(this.data);
+  @override
+  Widget build(BuildContext context) {
+    // TODO: implement build
+    return md.MarkdownBody(data: data, syntaxHighlighter: new HighLight());
+  }
+}