diff --git a/.gitignore b/.gitignore
index ffbbb89..c449063 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,6 +29,8 @@
 .pub/
 /build/
 
+pubspec.lock
+
 # Android related
 **/android/**/gradle-wrapper.jar
 **/android/.gradle
diff --git a/pubspec.lock b/pubspec.lock
deleted file mode 100644
index 5309463..0000000
--- a/pubspec.lock
+++ /dev/null
@@ -1,139 +0,0 @@
-# Generated by pub
-# See https://dart.dev/tools/pub/glossary#lockfile
-packages:
-  async:
-    dependency: transitive
-    description:
-      name: async
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.2.0"
-  boolean_selector:
-    dependency: transitive
-    description:
-      name: boolean_selector
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.0.4"
-  charcode:
-    dependency: transitive
-    description:
-      name: charcode
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.1.2"
-  collection:
-    dependency: transitive
-    description:
-      name: collection
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.14.11"
-  flutter:
-    dependency: "direct main"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  flutter_test:
-    dependency: "direct dev"
-    description: flutter
-    source: sdk
-    version: "0.0.0"
-  matcher:
-    dependency: transitive
-    description:
-      name: matcher
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.12.5"
-  meta:
-    dependency: transitive
-    description:
-      name: meta
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.1.6"
-  path:
-    dependency: transitive
-    description:
-      name: path
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.6.2"
-  pedantic:
-    dependency: transitive
-    description:
-      name: pedantic
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.7.0"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.3"
-  sky_engine:
-    dependency: transitive
-    description: flutter
-    source: sdk
-    version: "0.0.99"
-  source_span:
-    dependency: transitive
-    description:
-      name: source_span
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.5.5"
-  stack_trace:
-    dependency: transitive
-    description:
-      name: stack_trace
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.9.3"
-  stream_channel:
-    dependency: transitive
-    description:
-      name: stream_channel
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.0"
-  string_scanner:
-    dependency: transitive
-    description:
-      name: string_scanner
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.0.4"
-  term_glyph:
-    dependency: transitive
-    description:
-      name: term_glyph
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.1.0"
-  test_api:
-    dependency: transitive
-    description:
-      name: test_api
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.2.5"
-  typed_data:
-    dependency: transitive
-    description:
-      name: typed_data
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.1.6"
-  vector_math:
-    dependency: transitive
-    description:
-      name: vector_math
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.8"
-sdks:
-  dart: ">=2.2.2 <3.0.0"