feat: 项目框架，全局空间处理
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chengsiwen committed
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@@ -0,0 +1,44 @@
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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/// AppScreen class
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class AppScreen {
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static double get screenWidth => Get.width;
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static double get screenHeight => Get.height;
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// static double get screenWidth => MediaQuery.of(Get.context!).size.width;
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// static double get screenHeight => MediaQuery.of(Get.context!).size.height;
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static Size size(BuildContext context) {
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return MediaQuery.of(context).size;
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}
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static bool get isDebug=> kDebugMode;
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static double get statusBarHeight => Get.statusBarHeight / Get.pixelRatio;
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static double get bottomBarHeight => Get.bottomBarHeight / Get.pixelRatio;
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// static double get tabBarHeight => kToolbarHeight;
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static double get navBarHeight => kToolbarHeight + statusBarHeight;
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static bool get isDark => Get.isDarkMode;
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static bool get isAndroid {
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return GetPlatform.isAndroid;
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}
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static bool get isIos {
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return GetPlatform.isIOS;
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}
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static double aRatioWidth({double? h, double aspectRatio = 1}) {
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h ??= screenHeight;
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return screenHeight * 1 / aspectRatio;
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}
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static double get keyboardHeight => Get.mediaQuery.viewInsets.bottom;
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}
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@@ -0,0 +1,59 @@
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import 'package:shared_preferences/shared_preferences.dart';
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// 用法： AppSp().setString("key", "value");
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class AppSp {
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static SharedPreferences? _instance;
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static final String _basePrefix = "omiyo.";
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static Future<SharedPreferences>? _instanceFuture;
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static Future<SharedPreferences> getInstance() {
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if (_instance != null) {
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return Future.value(_instance);
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}
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// 确保并发情况下只初始化一次
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_instanceFuture ??= SharedPreferences.getInstance().then((prefs) {
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_instance = prefs;
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return prefs;
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});
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return _instanceFuture!;
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}
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void setString(String key, String value) async {
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final prefs = await getInstance();
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prefs.setString("$_basePrefix$key", value);
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}
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Future<String> getString(String key) async {
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final prefs = await getInstance();
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return prefs.getString("$_basePrefix$key") ?? '';
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}
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void setBool(String key, bool value) async {
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final prefs = await getInstance();
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prefs.setBool("$_basePrefix$key", value);
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}
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Future<bool> getBool(String key) async {
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final prefs = await getInstance();
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return prefs.getBool("$_basePrefix$key") ?? false;
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}
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void setInt(String key, int value) async {
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final prefs = await getInstance();
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prefs.setInt("$_basePrefix$key", value);
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}
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Future<int> getInt(String key) async {
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final prefs = await getInstance();
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return prefs.getInt("$_basePrefix$key") ?? 0;
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}
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void deleteKey(String key) async {
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final prefs = await getInstance();
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prefs.remove("$_basePrefix$key");
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}
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}
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@@ -0,0 +1,137 @@
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import 'package:flutter/material.dart';
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// import 'package:lottie/lottie.dart';
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// import 'package:flutter_svg/flutter_svg.dart';
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class ConstImg {
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ConstImg._();
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static const String bottomBar = "assets/common/bottom_bar.png";
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static const String tabHomeSelected = "assets/common/tab_home_selected.png";
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static const String tabHomeUnselect = "assets/common/tab_home_unselect.png";
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static const String tabSearchSelected =
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"assets/common/tab_search_selected.png";
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static const String tabSearchUnselect =
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"assets/common/tab_search_unselect.png";
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static const String tabLikeSelected = "assets/common/tab_like_selected.png";
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static const String tabLikeUnselect = "assets/common/tab_like_unselect.png";
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static const String tabMineSelected = "assets/common/tab_mine_selected.png";
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static const String tabMineUnselect = "assets/common/tab_mine_unselect.png";
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static const String homeBg = "assets/imgs/home_bg.png";
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// nodata
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static const String noData = "assets/images/nodata.png";
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static const String loadingJson = "assets/bagua.json";
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// static get appLoading => Lottie.asset(loadingJson, width: 60, height: 60);
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}
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class HelpImg {
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/// load local
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static Widget asset(
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String path, {
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BoxFit? fit,
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double? width,
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double? height,
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Color? color,
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bool isDartData = false,
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String? dartPath,
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}) {
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String assets = path;
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return Image.asset(
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assets,
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fit: fit,
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width: width,
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height: height,
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color: color,
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);
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}
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static Widget networkRadius(
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String path, {
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BoxFit? fit,
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double? width,
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double? height,
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BoxShape? shape,
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BorderRadius? borderRadius,
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Widget? errorWidget,
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}) {
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return ClipRRect(
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borderRadius: borderRadius ?? BorderRadius.circular(3),
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child: network(
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path,
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fit: fit,
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width: width,
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height: height,
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shape: shape,
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errorWidget: errorWidget,
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),
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);
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}
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/// load network
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static Widget network(
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String path, {
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BoxFit? fit,
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double? width,
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double? height,
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Color? color,
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BoxShape? shape,
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BorderRadius? borderRadius,
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Widget? errorWidget,
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}) {
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// bool isSvg = path.toLowerCase().endsWith('.svg');
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// if (isSvg) {
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// return SvgPicture.network(
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// path,
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// width: width,
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// height: height,
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// // fit: fit ?? BoxFit.fill,
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// colorFilter: color != null
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// ? ColorFilter.mode(color, BlendMode.srcIn)
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// : null,
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// placeholderBuilder: (context) => Container(
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// width: width,
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// height: height,
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// color: Colors.grey[200],
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// child: Center(child: CircularProgressIndicator()),
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// ),
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// );
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// }
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return Image.network(
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path,
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width: width,
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height: height,
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fit: fit,
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loadingBuilder: (context, child, loadingProgress) {
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if (loadingProgress == null) return child;
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return Center(
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//CircularProgressIndicator
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child: Container(
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width: 50,
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height: 50,
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padding: const EdgeInsets.all(5),
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child: CircularProgressIndicator(
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color: Colors.white,
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strokeWidth: 2,
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),
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),
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);
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},
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errorBuilder: (context, error, stackTrace) {
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// ✅ 关键：处理加载失败的情况
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return errorWidget ??
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Container(
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width: 50,
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height: 50,
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color: Colors.grey[300],
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child: const Icon(
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Icons.broken_image,
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color: Colors.grey,
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size: 40,
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),
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);
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},
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);
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}
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}
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