我正在显示FadeInImage.assetNetwork
需要两个成员的图像:image
和placeholder
。
ClipRRect( //forcing image to rounded corners
borderRadius: BorderRadius.only(
topLeft: Radius.circular(15),
topRight: Radius.circular(15),
),
child: FadeInImage.assetNetwork(
image: imageUrl,
placeholder: '/Users/aayush/Documents/Flutter/Apps/meals_app/assets/images/food-placeholder.png', //here full path is necessary. relative path is not working.
// placeholder: '../../assets/images/food-placeholder.png', //this relative path is not working.
height: 250,
width: double.infinity,
fit: BoxFit.cover, //will resize and crop the image
),
),
目前我在lib/widgets/meal_item.dart
,占位符图像位于assets/images/food-placeholder.png
.
所以,我的相对路径将是:../../assets/images/food-placeholder.png
。当我尝试在此处使用相对路径时的错误消息:
════════ Exception caught by image resource service ════════════════════════════
The following assertion was thrown resolving an image codec:
Unable to load asset: ../../assets/images/food-placeholder.png
When the exception was thrown, this was the stack
#0 PlatformAssetBundle.load
package:flutter/…/services/asset_bundle.dart:224
<asynchronous suspension>
#1 AssetBundleImageProvider._loadAsync
package:flutter/…/painting/image_provider.dart:672
<asynchronous suspension>
Image provider: AssetImage(bundle: null, name: "../../assets/images/food-placeholder.png")
Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#df521(), name: "../../assets/images/food-placeholder.png", scale: 1.0)
我尝试了很多次,但它不仅在这个小部件中工作。相对路径在其他小部件中完美运行。请给我解决方案或建议,以便我可以显示占位符图像,直到获取 url 图像。
对于相对路径,创建这样的路径
'assets/images/food-placeholder.png'
并确保您在 pubspec.yaml 中的资产中添加了图像路径,如下所示
assets:
- assets/images/
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我来说两句