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untitled/lib/widget/CachedNetworkImage.dart

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+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:peach/config/_.dart';
+import 'package:peach/utils/_.dart';
+
+/// 缓存网络图片
+/// 第一次加载网络图，第二次从内存直接获取
+/// TODO 可以缓存图片到硬盘
+class CachedNetworkImg extends StatelessWidget {
+
+  String url;
+
+  CachedNetworkImg(this.url);
+
+  @override
+  Widget build(BuildContext context) {
+    return CachedNetworkImage(
+      imageUrl: url,
+      placeholder: (context, url) => Container(
+        width: 130,
+        height: 80,
+        child: Center(
+          child: CircularProgressIndicator(
+            backgroundColor: ColorConfig.ThemeColor,
+            strokeWidth: 2,
+          ),
+        ),
+      ),
+      errorWidget: (context, url, error) => Icon(Icons.error),
+      fit: BoxFit.cover,
+      width: Screen.setWidth(375),
+    );
+  }
+
+}