108 lines
3.2 KiB
Dart
108 lines
3.2 KiB
Dart
import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:responsive_framework/responsive_framework.dart';
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class AppBackground extends StatelessWidget {
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final Widget child;
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final bool isLessOptimization;
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final bool isRoot;
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const AppBackground({
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super.key,
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required this.child,
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this.isLessOptimization = false,
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this.isRoot = false,
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});
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Widget _buildWithBackgroundImage(
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BuildContext context,
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File imageFile,
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Widget child,
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) {
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final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
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if (isLessOptimization) {
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final size = MediaQuery.of(context).size;
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return Container(
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color: Theme.of(context).colorScheme.surface,
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child: Container(
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decoration: BoxDecoration(
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backgroundBlendMode: BlendMode.darken,
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color: Theme.of(context).colorScheme.surface,
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image: DecorationImage(
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opacity: 0.2,
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image: ResizeImage(
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FileImage(imageFile),
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width: (size.width * devicePixelRatio).round(),
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height: (size.height * devicePixelRatio).round(),
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policy: ResizeImagePolicy.fit,
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),
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fit: BoxFit.cover,
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),
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),
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child: child,
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),
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);
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}
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return Container(
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color: Theme.of(context).colorScheme.surface,
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child: LayoutBuilder(
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builder: (context, constraints) {
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return Container(
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decoration: BoxDecoration(
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backgroundBlendMode: BlendMode.darken,
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color: Theme.of(context).colorScheme.surface,
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image: DecorationImage(
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opacity: 0.2,
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image: ResizeImage(
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FileImage(imageFile),
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width: (constraints.maxWidth * devicePixelRatio).round(),
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height: (constraints.maxHeight * devicePixelRatio).round(),
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policy: ResizeImagePolicy.fit,
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),
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fit: BoxFit.cover,
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),
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),
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child: child,
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);
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},
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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return ScaffoldMessenger(
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child: FutureBuilder(
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future:
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kIsWeb ? Future.value(null) : getApplicationDocumentsDirectory(),
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builder: (context, snapshot) {
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if (isRoot ||
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ResponsiveBreakpoints.of(context).smallerOrEqualTo(MOBILE)) {
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if (snapshot.hasData) {
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final path = '${snapshot.data!.path}/app_background_image';
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final file = File(path);
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if (file.existsSync()) {
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return _buildWithBackgroundImage(context, file, child);
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}
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}
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}
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final backgroundColor =
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ResponsiveBreakpoints.of(context).largerThan(MOBILE)
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? Colors.transparent
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: Theme.of(context).colorScheme.surface;
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return Material(
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color: backgroundColor,
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child: child,
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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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