v1.0.1

2026-03-07 17:24:59 +08:00
parent 4418ebecac
commit b0ec8ab4bd
417 changed files with 42546 additions and 2 deletions
--- a/lib/widgets/net_image.dart
+++ b/lib/widgets/net_image.dart
@@ -0,0 +1,137 @@
+import 'package:extended_image/extended_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_dmzj/app/app_style.dart';
+
+class NetImage extends StatefulWidget {
+  final String picUrl;
+  final double? width;
+  final double? height;
+  final BoxFit? fit;
+  final double borderRadius;
+  final bool progress;
+  const NetImage(this.picUrl,
+      {this.width,
+      this.height,
+      this.fit = BoxFit.cover,
+      this.borderRadius = 0,
+      this.progress = false,
+      Key? key})
+      : super(key: key);
+
+  @override
+  State<NetImage> createState() => _NetImageState();
+}
+
+class _NetImageState extends State<NetImage>
+    with SingleTickerProviderStateMixin {
+  late AnimationController animationController;
+
+  @override
+  void initState() {
+    animationController = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 400),
+    );
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    var picUrl = widget.picUrl;
+
+    if (picUrl.isEmpty) {
+      return Container(
+        decoration: BoxDecoration(
+          color: Colors.grey.withOpacity(.1),
+        ),
+        child: const Icon(
+          Icons.image,
+          color: Colors.grey,
+          size: 24,
+        ),
+      );
+    }
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(widget.borderRadius),
+      child: ExtendedImage.network(
+        picUrl,
+        fit: widget.fit,
+        height: widget.height,
+        width: widget.width,
+        shape: BoxShape.rectangle,
+        handleLoadingProgress: widget.progress,
+        borderRadius: BorderRadius.circular(widget.borderRadius),
+        headers: const {'Referer': "http://www.zaimanhua.com/"},
+        loadStateChanged: (e) {
+          if (e.extendedImageLoadState == LoadState.loading) {
+            animationController.reset();
+            final double? progress =
+                e.loadingProgress?.expectedTotalBytes != null
+                    ? e.loadingProgress!.cumulativeBytesLoaded /
+                        e.loadingProgress!.expectedTotalBytes!
+                    : null;
+            if (widget.progress) {
+              return Center(
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    CircularProgressIndicator(
+                      value: progress,
+                    ),
+                    AppStyle.vGap4,
+                    Text(
+                      '${((progress ?? 0.0) * 100).toInt()}%',
+                      textAlign: TextAlign.center,
+                      style: const TextStyle(fontSize: 12),
+                    ),
+                  ],
+                ),
+              );
+            }
+            return Container(
+              decoration: BoxDecoration(
+                color: Colors.grey.withOpacity(.1),
+              ),
+              child: const Icon(
+                Icons.image,
+                color: Colors.grey,
+                size: 24,
+              ),
+            );
+          }
+          if (e.extendedImageLoadState == LoadState.failed) {
+            animationController.reset();
+            return Container(
+              decoration: BoxDecoration(
+                color: Colors.grey.withOpacity(.1),
+              ),
+              child: const Icon(
+                Icons.broken_image,
+                color: Colors.grey,
+                size: 24,
+              ),
+            );
+          }
+          if (e.extendedImageLoadState == LoadState.completed) {
+            if (e.wasSynchronouslyLoaded) {
+              return e.completedWidget;
+            }
+            animationController.forward();
+
+            return FadeTransition(
+              opacity: animationController,
+              child: e.completedWidget,
+            );
+          }
+          return null;
+        },
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    animationController.dispose();
+    super.dispose();
+  }
+}