didvan-app/lib/views/widgets/skeleton_image.dart

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import 'package:cached_network_image/cached_network_image.dart';
import 'package:didvan/config/design_config.dart';
import 'package:didvan/config/theme_data.dart';
import 'package:didvan/services/network/request.dart';
import 'package:didvan/services/network/request_helper.dart';
import 'package:didvan/views/widgets/shimmer_placeholder.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
// ignore: depend_on_referenced_packages
import 'package:cached_network_image_platform_interface/cached_network_image_platform_interface.dart';
class SkeletonImage extends StatelessWidget {
final String imageUrl;
final double? width;
final double? height;
final double? pWidth;
final double? pHeight;
final BorderRadius? borderRadius;
final double? aspectRatio;
const SkeletonImage({
Key? key,
required this.imageUrl,
this.borderRadius = DesignConfig.lowBorderRadius,
this.aspectRatio,
this.width,
this.height,
this.pWidth,
this.pHeight,
}) : super(key: key);
@override
Widget build(BuildContext context) {
// URL نهاییِ تصویر را می‌سازیم.
final finalUrl =
imageUrl.startsWith('http') || imageUrl.contains(RequestHelper.baseUrl)
? imageUrl.replaceAll('\n', '')
: RequestHelper.baseUrl + imageUrl.replaceAll('\n', '');
// Bearer token را فقط برای دامنه‌های خودمان می‌فرستیم.
// URLهای signed-شده‌ی S3 (Arvan) signature خاص دارند و اگر هدر
// Authorization اضافه شود، با 400 رد می‌شوند.
final isOwnDomain = finalUrl.contains('didvan.app') ||
finalUrl.contains('didvan.com');
final headers = <String, String>{
if (isOwnDomain && RequestService.token != null)
'Authorization': 'Bearer ${RequestService.token}',
};
return _aspectRatioGenerator(
child: ClipRRect(
borderRadius: borderRadius ?? BorderRadius.zero,
child: CachedNetworkImage(
errorWidget: (context, url, error) {
if (kDebugMode) {
print('image fetch compelete with Error: $error');
}
return Container(
decoration: BoxDecoration(
color: Theme.of(context).colorScheme.disabledBackground),
child: const Icon(Icons.image_not_supported_outlined));
},
errorListener: (value) {},
fit: kIsWeb ? BoxFit.fill : BoxFit.cover,
imageRenderMethodForWeb: ImageRenderMethodForWeb.HttpGet,
httpHeaders: headers,
width: width,
height: height,
imageUrl: finalUrl,
placeholder: (context, _) => ShimmerPlaceholder(
width: pWidth,
height: pHeight,
),
),
),
);
}
Widget _aspectRatioGenerator({required Widget child}) => aspectRatio == null
? child
: AspectRatio(
key: ValueKey(imageUrl),
aspectRatio: aspectRatio!,
child: child,
);
}