pikapika/lib/basic/config/Themes.dart

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/// 主题
import 'package:event/event.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
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import 'package:pikapika/basic/Common.dart';
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import '../Method.dart';
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import 'Platform.dart';
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// 字体相关
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const _fontFamilyProperty = "fontFamily";
String? _fontFamily;
Future initFont() async {
var defaultFont = "";
_fontFamily = await method.loadProperty(_fontFamilyProperty, defaultFont);
}
ThemeData _fontThemeData(bool dark) {
return ThemeData(
brightness: dark ? Brightness.dark : Brightness.light,
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fontFamily: _fontFamily == "" ? null : _fontFamily,
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);
}
Future<void> inputFont(BuildContext context) async {
var font = await displayTextInputDialog(
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context, src: "$_fontFamily", title: "字体", hint: "请输入字体",
desc: "请输入字体的名称, 例如宋体/黑体, 如果您保存后没有发生变化, 说明字体无法使用或名称错误, 可以去参考C:\\Windows\\Fonts寻找您的字体。",
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);
if (font != null) {
await method.saveProperty(_fontFamilyProperty, font);
_fontFamily = font;
_changeThemeByCode(_themeCode);
}
}
Widget fontSetting() {
return StatefulBuilder(
builder: (BuildContext context, void Function(void Function()) setState) {
return ListTile(
title: Text("字体"),
subtitle: Text("$_fontFamily"),
onTap: () async {
await inputFont(context);
setState(() {});
},
);
},
);
}
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// 主题相关
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// 主题包
abstract class _ThemePackage {
String code();
String name();
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ThemeData themeData(ThemeData rawData);
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}
class _OriginTheme extends _ThemePackage {
@override
String code() => "origin";
@override
String name() => "原生";
@override
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ThemeData themeData(ThemeData rawData) => rawData;
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}
class _PinkTheme extends _ThemePackage {
@override
String code() => "pink";
@override
String name() => "粉色";
@override
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ThemeData themeData(ThemeData rawData) =>
rawData.copyWith(
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brightness: Brightness.light,
colorScheme: ColorScheme.light(
secondary: Colors.pink.shade200,
),
appBarTheme: AppBarTheme(
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systemOverlayStyle: SystemUiOverlayStyle.light,
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color: Colors.pink.shade200,
iconTheme: IconThemeData(
color: Colors.white,
),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
selectedItemColor: Colors.pink[300],
unselectedItemColor: Colors.grey[500],
),
dividerColor: Colors.grey.shade200,
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primaryColor: Colors.pink.shade200,
textSelectionTheme: TextSelectionThemeData(
cursorColor: Colors.pink.shade200,
selectionColor: Colors.pink.shade300.withAlpha(150),
selectionHandleColor: Colors.pink.shade300.withAlpha(200),
),
inputDecorationTheme: InputDecorationTheme(
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.pink.shade200),
),
),
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);
}
class _BlackTheme extends _ThemePackage {
@override
String code() => "black";
@override
String name() => "酷黑";
@override
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ThemeData themeData(ThemeData rawData) =>
rawData.copyWith(
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brightness: Brightness.light,
colorScheme: ColorScheme.light(
secondary: Colors.pink.shade200,
),
appBarTheme: AppBarTheme(
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systemOverlayStyle: SystemUiOverlayStyle.light,
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color: Colors.grey.shade800,
iconTheme: IconThemeData(
color: Colors.white,
),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
selectedItemColor: Colors.white,
unselectedItemColor: Colors.grey[400],
backgroundColor: Colors.grey.shade800,
),
dividerColor: Colors.grey.shade200,
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primaryColor: Colors.pink.shade200,
textSelectionTheme: TextSelectionThemeData(
cursorColor: Colors.pink.shade200,
selectionColor: Colors.pink.shade300.withAlpha(150),
selectionHandleColor: Colors.pink.shade300.withAlpha(200),
),
inputDecorationTheme: InputDecorationTheme(
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.pink.shade200),
),
),
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);
}
class _DarkTheme extends _ThemePackage {
@override
String code() => "dark";
@override
String name() => "暗黑";
@override
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ThemeData themeData(ThemeData rawData) =>
rawData.copyWith(
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brightness: Brightness.light,
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colorScheme: ColorScheme.light(
secondary: Colors.pink.shade200,
),
appBarTheme: AppBarTheme(
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systemOverlayStyle: SystemUiOverlayStyle.light,
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color: Color(0xFF1E1E1E),
iconTheme: IconThemeData(
color: Colors.white,
),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
selectedItemColor: Colors.white,
unselectedItemColor: Colors.grey.shade300,
backgroundColor: Colors.grey.shade900,
),
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primaryColor: Colors.pink.shade200,
textSelectionTheme: TextSelectionThemeData(
cursorColor: Colors.pink.shade200,
selectionColor: Colors.pink.shade300.withAlpha(150),
selectionHandleColor: Colors.pink.shade300.withAlpha(200),
),
inputDecorationTheme: InputDecorationTheme(
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.pink.shade200),
),
),
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);
}
class _DustyBlueTheme extends _ThemePackage {
@override
String code() => "dustyBlue";
@override
String name() => "灰蓝";
@override
ThemeData themeData(ThemeData rawData) =>
rawData.copyWith(
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scaffoldBackgroundColor: Color.alphaBlend(
Color(0x11999999), Color(0xff20253b)),
cardColor: Color.alphaBlend(Color(0x11AAAAAA), Color(0xff20253b)),
brightness: Brightness.light,
colorScheme: ColorScheme.light(
secondary: Colors.blue.shade200,
),
appBarTheme: AppBarTheme(
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systemOverlayStyle: SystemUiOverlayStyle.light,
color: Color(0xff20253b),
iconTheme: IconThemeData(
color: Colors.white,
),
),
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dialogTheme: DialogTheme(
backgroundColor: Color(0xff20253b),
),
bottomNavigationBarTheme: BottomNavigationBarThemeData(
backgroundColor: Color(0xff191b26),
selectedItemColor: Colors.blue.shade200,
unselectedItemColor: Colors.grey.shade500,
),
dividerColor: Colors.grey.shade800,
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primaryColor: Colors.blue.shade200,
textSelectionTheme: TextSelectionThemeData(
cursorColor: Colors.blue.shade200,
selectionColor: Colors.blue.shade900,
selectionHandleColor: Colors.blue.shade800,
),
inputDecorationTheme: InputDecorationTheme(
focusedBorder: UnderlineInputBorder(
borderSide: BorderSide(color: Colors.blue.shade500),
),
),
);
}
var _darkTheme = _DarkTheme();
var _dustyBlueTheme = _DustyBlueTheme();
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final _themePackages = <_ThemePackage>[
_OriginTheme(),
_PinkTheme(),
_BlackTheme(),
_darkTheme,
_dustyBlueTheme,
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];
// 主题更换事件
var themeEvent = Event<EventArgs>();
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const _themePropertyName = "theme";
const _defaultThemeCode = "pink";
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String? _themeCode;
ThemeData? _themeData;
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ThemeData? _currentDarkTheme;
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bool _androidNightMode = false;
String currentThemeName() {
for (var package in _themePackages) {
if (_themeCode == package.code()) {
return package.name();
}
}
return "";
}
ThemeData? currentThemeData() {
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return _themeData;
}
ThemeData? currentDarkTheme() {
return _currentDarkTheme;
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}
// 根据Code选择主题, 并发送主题更换事件
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void _changeThemeByCode(String? themeCode) {
_ThemePackage? _themePackage;
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for (var package in _themePackages) {
if (themeCode == package.code()) {
_themeCode = themeCode;
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_themePackage = package;
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break;
}
}
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if (_themePackage != null) {
_themeData = _themePackage.themeData(
_fontThemeData(
_themePackage == _darkTheme || _themePackage == _dustyBlueTheme),
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);
}
_currentDarkTheme = _androidNightMode
? _darkTheme.themeData(_fontThemeData(true))
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: _themeData;
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themeEvent.broadcast();
}
// 为了匹配安卓夜间模式增加的配置文件
const _nightModePropertyName = "androidNightMode";
Future<dynamic> initTheme() async {
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_androidNightMode =
await method.loadProperty(_nightModePropertyName, "true") == "true";
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_changeThemeByCode(
await method.loadProperty(_themePropertyName, _defaultThemeCode),
);
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}
// 选择主题的对话框
Future<dynamic> chooseTheme(BuildContext buildContext) async {
String? theme = await showDialog<String>(
context: buildContext,
builder: (BuildContext context) {
return StatefulBuilder(
builder: (BuildContext context, StateSetter setState) {
var list = <SimpleDialogOption>[];
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if (androidVersion >= 29) {
var onChange = (bool? v) async {
if (v != null) {
await method.saveProperty(
_nightModePropertyName, "$v");
_androidNightMode = v;
}
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_changeThemeByCode(_themeCode);
};
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list.add(
SimpleDialogOption(
child: GestureDetector(
onTap: () {
onChange(!_androidNightMode);
},
child: Container(
margin: EdgeInsets.only(top: 3, bottom: 3),
decoration: BoxDecoration(
border: Border(
top: BorderSide(
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color: Theme
.of(context)
.dividerColor,
width: 0.5,
),
bottom: BorderSide(
color: Theme
.of(context)
.dividerColor,
width: 0.5
),
),
),
child: Row(
children: [
Checkbox(
value: _androidNightMode,
onChanged: onChange,
),
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Text("随手机进入黑暗模式"),
],
),
),
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),
),
);
}
list.addAll(_themePackages
.map((e) =>
SimpleDialogOption(
child: Text(e.name()),
onPressed: () {
Navigator.of(context).pop(e.code());
},
)
));
return SimpleDialog(
title: Text("选择主题"),
children: list,
);
})
},
);
if (theme != null) {
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method.saveProperty(_themePropertyName, theme);
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_changeThemeByCode(theme);
}
}