照片预览

example/lib/widgets/example_picker.dart

@@ -40,7 +40,7 @@ class _ExamplePickerState extends State<ExamplePicker> {
             trailing: ASButton(
               title: '日期选择器',
               onPressed: () async {
-                DateTime? date = await asDatePicker(context);
+                DateTime? date = await showAsDatePicker(context);
                 Get.snackbar(date.toString(), 'MESSAGE');
               },
             ),

lib/utils/as_grid_image_view.dart

@@ -0,0 +1,38 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+
+class AsGridImageView extends StatelessWidget {
+  final List<File>? files;
+  final List<String>? nets;
+  final String? placeholder;
+
+  const AsGridImageView.fromFile(
+      {Key? key, required this.files, this.placeholder})
+      : nets = null,
+        super(key: key);
+
+  const AsGridImageView.fromNets(
+      {Key? key, required this.nets, this.placeholder})
+      : files = null,
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return GridView(
+        padding: EdgeInsets.all(10.w),
+        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+          crossAxisCount: 3,
+          mainAxisSpacing: 10.w,
+          crossAxisSpacing: 10.w,
+        ),
+        shrinkWrap: true,
+        children: files == null
+            ? nets!
+                .map((e) => FadeInImage.assetNetwork(
+                    placeholder: placeholder ?? '', image: e))
+                .toList()
+            : files!.map((e) => Image.file(e)).toList());
+  }
+}

lib/utils/camera_view.dart

@@ -1,20 +1,20 @@
 import 'dart:io';
 import 'dart:ui';
 
-import 'package:flutter/material.dart';
+import 'package:ansu_ui/divider/as_divider.dart';
-import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/extension/list_extension.dart';
-import 'package:ansu_ui/styles/as_colors.dart';
 import 'package:ansu_ui/scaffold/as_scaffold.dart';
-import 'package:ansu_ui/utils/photo_viewer.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
 import 'package:ansu_ui/utils/camera_util.dart';
-import 'package:ansu_ui/extension/list_extension.dart';
+import 'package:ansu_ui/utils/photo_viewer.dart';
-import 'package:ansu_ui/divider/as_divider.dart';
+import 'package:flutter/material.dart';
-
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:velocity_x/velocity_x.dart';
 
 class CameraView extends StatefulWidget {
   final File? file;
   final String? title;
+
   CameraView({Key? key, this.file, this.title}) : super(key: key);
 
   @override
@@ -41,7 +41,8 @@ class _CameraViewState extends State<CameraView> {
           alignment: Alignment.center,
           child: GestureDetector(
             onTap: () {
-              toPhotoViewer(context, tag: widget.title, file: widget.file);
+              PhotoViewer.fromFile(context,
+                  tag: widget.title ?? '', file: widget.file!);
             },
             child: Hero(
               child: Image.file(

lib/utils/photo_viewer.dart

@@ -1,12 +1,55 @@
 import 'dart:io';
 
-import 'package:flutter/material.dart';
 import 'package:ansu_ui/extension/num_extension.dart';
+import 'package:flutter/material.dart';
 
 class PhotoViewer extends StatefulWidget {
   final File? file;
-  final String? tag;
+  final String? net;
-  PhotoViewer({Key? key, this.file, this.tag}) : super(key: key);
+  final String tag;
+
+  static fromFile(BuildContext context,
+      {required String tag, required File file}) {
+    Navigator.push(
+      context,
+      PageRouteBuilder(
+        pageBuilder: (context, animation, secondAnimation) {
+          return PhotoViewer.toFile(file: file, tag: tag);
+        },
+        opaque: false,
+        transitionsBuilder: (context, animation, secondaryAnimation, child) {
+          return FadeTransition(opacity: animation, child: child);
+        },
+      ),
+    );
+  }
+
+  static fromNet(BuildContext context,
+      {required String tag, required String net}) {
+    Navigator.push(
+      context,
+      PageRouteBuilder(
+        pageBuilder: (context, animation, secondAnimation) {
+          return PhotoViewer.toNet(net: net, tag: tag);
+        },
+        opaque: false,
+        transitionsBuilder: (context, animation, secondaryAnimation, child) {
+          return FadeTransition(opacity: animation, child: child);
+        },
+      ),
+    );
+  }
+
+  PhotoViewer.toFile({
+    Key? key,
+    this.file,
+    required this.tag,
+  })  : net = null,
+        super(key: key);
+
+  PhotoViewer.toNet({Key? key, required this.tag, this.net})
+      : file = null,
+        super(key: key);
 
   @override
   _PhotoViewerState createState() => _PhotoViewerState();
@@ -23,8 +66,10 @@ class _PhotoViewerState extends State<PhotoViewer> {
           child: InteractiveViewer(
             boundaryMargin: 100.edge,
             child: Hero(
-              tag: widget.tag!,
+              tag: widget.tag,
-              child: Image.file(widget.file!),
+              child: widget.file != null
+                  ? Image.file(widget.file!)
+                  : Image.network(widget.net!),
             ),
           ),
         ),
@@ -32,18 +77,3 @@ class _PhotoViewerState extends State<PhotoViewer> {
     );
   }
 }
-
-toPhotoViewer(BuildContext context, {String? tag, File? file}) {
-  Navigator.push(
-    context,
-    PageRouteBuilder(
-      pageBuilder: (context, animation, secondAnimation) {
-        return PhotoViewer(file: file, tag: tag);
-      },
-      opaque: false,
-      transitionsBuilder: (context, animation, secondaryAnimation, child) {
-        return FadeTransition(opacity: animation, child: child);
-      },
-    ),
-  );
-}