优化代码

Author: xiaoyaocz

README.md

@@ -37,4 +37,11 @@ class _DanmakuPageState extends State<DanmakuPage> {
 
 [https://www.zhihu.com/question/370464345](https://www.zhihu.com/question/370464345)
 
-[https://github.com/LaoMengFlutter/flutter-do](https://github.com/LaoMengFlutter/flutter-do/tree/master/flutter_barrage_sample)
+[https://github.com/LaoMengFlutter/flutter-do](https://github.com/LaoMengFlutter/flutter-do/tree/master/flutter_barrage_sample)
+
+
+## TODO 
+
+1、优化弹幕配置方式
+2、应先初始化Controller
+3、弹幕边框优化

analysis_options.yaml

@@ -0,0 +1,29 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at
+  # https://dart-lang.github.io/linter/lints/index.html.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

example/pubspec.lock

@@ -5,58 +5,58 @@ packages:
     dependency: transitive
     description:
       name: async
+      sha256: bfe67ef28df125b7dddcea62755991f807aa39a2492a23e1550161692950bbe0
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.8.2"
+    version: "2.10.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
+      sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   characters:
     dependency: transitive
     description:
       name: characters
+      sha256: e6a326c8af69605aec75ed6c187d06b349707a27fbff8222ca9cc2cff167975c
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.3.1"
+    version: "1.2.1"
   clock:
     dependency: transitive
     description:
       name: clock
+      sha256: cb6d7f03e1de671e34607e909a7213e31d7752be4fb66a86d29fe1eb14bfb5cf
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
+      sha256: cfc915e6923fe5ce6e153b0723c753045de46de1b4d63771530504004a45fae0
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.16.0"
+    version: "1.17.0"
   cupertino_icons:
     dependency: "direct main"
     description:
       name: cupertino_icons
+      sha256: e35129dc44c9118cee2a5603506d823bab99c68393879edb440e0090d07586be
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.5"
   fake_async:
     dependency: transitive
     description:
       name: fake_async
+      sha256: "511392330127add0b769b75a987850d136345d9227c6b94c96a04cf4a391bf78"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.3.0"
+    version: "1.3.1"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -67,41 +67,53 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: "5528c2f391ededb7775ec1daa69e65a2d61276f7552de2b5f7b8d34ee9fd4ab7"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.6.5"
   matcher:
     dependency: transitive
     description:
       name: matcher
+      sha256: "16db949ceee371e9b99d22f88fa3a73c4e59fd0afed0bd25fc336eb76c198b72"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.13"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
+      sha256: d92141dc6fe1dad30722f9aa826c7fbc896d021d792f80678280601aff8cf724
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.1.4"
+    version: "0.2.0"
   meta:
     dependency: transitive
     description:
       name: meta
+      sha256: "6c268b42ed578a53088d834796959e4a1814b5e9e164f147f580a386e5decf42"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.7.0"
+    version: "1.8.0"
   ns_danmaku:
     dependency: "direct main"
     description:
       path: ".."
       relative: true
     source: path
-    version: "0.0.2"
+    version: "0.0.3"
   path:
     dependency: transitive
     description:
       name: path
+      sha256: db9d4f58c908a4ba5953fcee2ae317c94889433e5024c27ce74a37f94267945b
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.1"
+    version: "1.8.2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -111,50 +123,57 @@ packages:
     dependency: transitive
     description:
       name: source_span
+      sha256: dd904f795d4b4f3b870833847c461801f6750a9fa8e61ea5ac53f9422b31f250
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.8.2"
+    version: "1.9.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
+      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.10.0"
+    version: "1.11.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
+      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.0"
+    version: "2.1.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
+      sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
+      sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.2.0"
+    version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
+      sha256: ad540f65f92caa91bf21dfc8ffb8c589d6e4dc0c2267818b4cc2792857706206
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.4.9"
+    version: "0.4.16"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
+      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.2"
+    version: "2.1.4"
 sdks:
-  dart: ">=2.17.3 <3.0.0"
+  dart: ">=2.18.0 <3.0.0"

lib/danmaku_border_text.dart

@@ -23,22 +23,34 @@ class DanmakuBorderText extends StatelessWidget {
           textAlign: textAlign,
           style: TextStyle(
             fontSize: fontSize,
+            letterSpacing: 1,
             foreground: Paint()
               ..style = PaintingStyle.stroke
-              ..strokeWidth = 2
-              ..color = color == Colors.black ? Colors.white : Colors.black,
+              ..strokeWidth = strokeWidth
+              ..strokeCap = StrokeCap.round
+              ..strokeJoin = StrokeJoin.round
+              ..color = getBorderColor(color),
           ),
         ),
         Text(
           text,
           softWrap: false,
           textAlign: textAlign,
           style: TextStyle(
+            letterSpacing: 1,
             fontSize: fontSize,
             color: color,
           ),
         ),
       ],
     );
   }
+
+  double get strokeWidth => (fontSize / 20).ceil() * 2;
+
+  Color getBorderColor(Color color) {
+    var brightness =
+        ((color.red * 299) + (color.green * 587) + (color.blue * 114)) / 1000;
+    return brightness > 70 ? Colors.black : Colors.white;
+  }
 }