添加的Popover组件

.gitignore

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+.DS_Store
+.dart_tool/
+
+.packages
+.pub/
+
+build/
+ios/.generated/
+ios/Flutter/Generated.xcconfig
+ios/Runner/GeneratedPluginRegistrant.*

.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: 2f630446040b9f5b65fbfff9a76be1fe01c45e99
+  channel: master
+
+project_type: package

CHANGELOG.md

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+## [0.0.1] - TODO: Add release date.
+
+* TODO: Describe initial release.

LICENSE

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+TODO: Add your license here.

README.md

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+# cool_ui
+
+一套很酷的UI控件
+
+## Getting Started
+
+For help getting started with Flutter, view our online [documentation](https://flutter.io/).
+
+For help on editing package code, view the [documentation](https://flutter.io/developing-packages/).

cool_ui.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/lib" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 25 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+    <orderEntry type="library" name="Flutter Plugins" level="project" />
+  </component>
+</module>

pubspec.lock

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+# Generated by pub
+# See https://www.dartlang.org/tools/pub/glossary#lockfile
+packages:
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.33.0"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.5.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.8"
+  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"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.2"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.6"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.14.6"
+  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"
+  front_end:
+    dependency: transitive
+    description:
+      name: front_end
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.1.6"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.1.7"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.13.3+3"
+  http:
+    dependency: transitive
+    description:
+      name: http
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.12.0"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.5"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "3.1.3"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.3.3"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.6.1+1"
+  json_rpc_2:
+    dependency: transitive
+    description:
+      name: json_rpc_2
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.9"
+  kernel:
+    dependency: transitive
+    description:
+      name: kernel
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.3.6"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.11.3+2"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.12.3+1"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.1.6"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.9.6+2"
+  multi_server_socket:
+    dependency: transitive
+    description:
+      name: multi_server_socket
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.2"
+  node_preamble:
+    dependency: transitive
+    description:
+      name: node_preamble
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.4.4"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.5"
+  package_resolver:
+    dependency: transitive
+    description:
+      name: package_resolver
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.6"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.6.2"
+  plugin:
+    dependency: transitive
+    description:
+      name: plugin
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.0+3"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.3.6"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.4.2"
+  quiver:
+    dependency: transitive
+    description:
+      name: quiver
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.0+1"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.7.3+3"
+  shelf_packages_handler:
+    dependency: transitive
+    description:
+      name: shelf_packages_handler
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.4"
+  shelf_static:
+    dependency: transitive
+    description:
+      name: shelf_static
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.8"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.2+4"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_map_stack_trace:
+    dependency: transitive
+    description:
+      name: source_map_stack_trace
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.1.5"
+  source_maps:
+    dependency: transitive
+    description:
+      name: source_maps
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.10.8"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.4.1"
+  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: "1.6.8"
+  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: "1.0.1"
+  test:
+    dependency: transitive
+    description:
+      name: test
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.3.4"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.1.6"
+  utf:
+    dependency: transitive
+    description:
+      name: utf
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.9.0+5"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.0.8"
+  vm_service_client:
+    dependency: transitive
+    description:
+      name: vm_service_client
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.2.6"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.9.7+10"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.9"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "2.1.15"
+sdks:
+  dart: ">=2.0.0 <3.0.0"

pubspec.yaml

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+name: cool_ui
+description: 一套很酷的UI控件
+version: 0.0.1
+author:
+homepage:
+
+environment:
+  sdk: ">=2.0.0-dev.68.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://www.dartlang.org/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+
+  # To add assets to your package, add an assets section, like this:
+  # assets:
+  #  - images/a_dot_burr.jpeg
+  #  - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.io/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.io/assets-and-images/#resolution-aware.
+
+  # To add custom fonts to your package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.io/custom-fonts/#from-packages