图像不在flutter应用程序中显示 . 但我在调试控制台中遇到了一些错误 .
I/FlutterActivityDelegate(22603): onResume setting current activity to this
I/FlutterActivityDelegate(22603): onResume setting current activity to this
I/Timeline(22603): Timeline: Activity_idle id: android.os.BinderProxy@3eb59326 time:39937973
I/flutter (22603): ══╡ EXCEPTION CAUGHT BY SERVICES ╞══════════════════════════════════════════════════════════════════
I/flutter (22603): The following assertion was thrown resolving an image codec:
I/flutter (22603): Unable to load asset: assets/images/logo.png
I/flutter (22603): When the exception was thrown, this was the stack:
I/flutter (22603): #0 PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)
I/flutter (22603): <asynchronous suspension>
I/flutter (22603): #1 AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:383:44)
I/flutter (22603): <asynchronous suspension>
I/flutter (22603): #2 AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:368:14)
I/flutter (22603): #3 ImageProvider.resolve.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:265:86)
I/flutter (22603): #4 ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:82:22)
I/flutter (22603): #5 ImageProvider.resolve.<anonymous closure> (package:flutter/src/painting/image_provider.dart:265:63)
I/flutter (22603): (elided 8 frames from package dart:async)
I/flutter (22603): Image provider: AssetImage(bundle: null, name: "assets/images/logo.png")
I/flutter (22603): Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#19ce7(), name: "assets/images/logo.png",
I/flutter (22603): scale: 1.0)
I/flutter (22603): ════════════════════════════════════════════════════════════════════════════════════════════════════
D/ViewRootImpl(22603): ViewPostImeInputStage ACTION_DOWN
D/ViewRootImpl(22603): ViewPostImeInputStage ACTION_DOWN
我的Pubspec.yaml文件
资产： - assets / images / logo.png
login.dart代码
new Image.asset（“assets / images / logo.png”，宽度：60.0，高度：24.0，适合：BoxFit.cover）
2 回答
我以错误的方式提到了图像文件 . 我在' - '和图像名称而不是制表符之间放置空格 .
资产：
不要在pubspec.yaml文件中的字符而不是制表符之间放置空格
我假设您在
assets/images/文件夹中复制了文件对吗？您还需要将图像引用到pubspec.yaml文件中 .