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aku_new_community/lib/widget/picker/bee_image_preview.dart

101 lines
2.6 KiB

import 'dart:io';
import 'package:aku_new_community/constants/sars_api.dart';
import 'package:aku_new_community/gen/assets.gen.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
///图片点击放大预览
class BeeImagePreview extends StatefulWidget {
static Future<T?> toFile<T>({required File file, String? tag}) async {
return await navigator!.push(
PageRouteBuilder(
opaque: false,
fullscreenDialog: true,
pageBuilder: (context, animation, secondAnimation) {
return FadeTransition(
opacity: animation,
child: BeeImagePreview.file(file: file, tag: tag),
);
},
transitionsBuilder: (context, animation, secondaryAnimation, child) {
return child;
},
),
);
}
static toPath({required String? path, String? tag}) {
navigator!.push(
PageRouteBuilder(
opaque: false,
fullscreenDialog: true,
pageBuilder: (context, animation, secondAnimation) {
return BeeImagePreview.path(path: path, tag: tag);
},
transitionsBuilder: (context, animation, secondaryAnimation, child) {
return FadeTransition(
opacity: animation,
child: child,
);
},
),
);
}
final File? file;
final String? path;
final String? tag;
BeeImagePreview.file({Key? key, required this.file, this.tag})
: path = null,
super(key: key);
BeeImagePreview.path({Key? key, required this.path, this.tag})
: file = null,
super(key: key);
@override
_BeeImagePreviewState createState() => _BeeImagePreviewState();
}
class _BeeImagePreviewState extends State<BeeImagePreview> {
Widget get image {
if (widget.file == null)
return Hero(
tag: widget.tag ?? widget.path!,
child: FadeInImage.assetNetwork(
placeholder: Assets.images.placeholder.path,
image: SARSAPI.image(widget.path),
imageErrorBuilder: (context, obj, stackTrace) {
return Image.asset(
Assets.images.placeholder.path,
fit: BoxFit.fill,
);
},
),
);
else
return Hero(
tag: widget.tag ?? widget.file.hashCode,
child: Image.file(widget.file!),
);
}
@override
Widget build(BuildContext context) {
return GestureDetector(
onTap: Get.back,
child: Scaffold(
backgroundColor: Colors.black54,
body: InteractiveViewer(
boundaryMargin: EdgeInsets.all(48),
minScale: 0.2,
maxScale: 10,
child: Center(child: image),
),
),
);
}
}