当我尝试运行图像资产时,无法正确加载图像时,出现异常:
引发了以下断言来解析图像编解码器:无法加载资产:/ images / p8.png`
几周前,它正在运行,但现在停止了。我也尝试从不同的PC和Mac(带有模拟器)运行,仍然无法加载图像。而是正确加载字体。
这就是我加载图像的方式,它们在一个内部渲染。GridView 下面是代码:
GridView
return new Expanded( child: new GridView.count( crossAxisCount: 2, padding: const EdgeInsets.fromLTRB(16.0, 25.0, 16.0, 4.0), children: <Widget>[ new MaterialButton( onPressed: () { Navigator.of(context).pushNamed('/biliardo'); }, child: new Column( children: <Widget>[ new Image( //parte importante, definire gli asset per trovarli più velocemnte //si inseriscono nel pubspec.yaml image: new AssetImage('/images/p8.png'), height: 100.0, width: 100.0, ), new Text( "BILIARDO", style: new TextStyle( color: (darkTheme) ? Colors.blue : Colors.black, ), ) ], ), ), ..... );
pubsec.yaml文件代码:
flutter: uses-material-design: true assets: - images/emptyBall.png - images/p1.png - images/p2.png - images/p3.png - images/p4.png - images/p5.png - images/p6.png - images/p7.png - images/p8.png - images/p9.png - images/p10.png - images/p11.png - images/p12.png - images/p13.png - images/p14.png - images/p15.png - images/basket.png - images/volley.png - images/tennis.png - images/rugby.png - images/numbers.png fonts: - family: ShotClock fonts: - asset: utils/ShotClock.ttf
颤振分析
Analyzing D:\Android\AndroidStudioProjects\flutter_app... No issues found! Ran in 5.2s
flutter -v运行
https://docs.google.com/document/d/133Z7029VGJXBDCYLgCrj09F9cLbvIQQ5X8yBS4pPC7I/edit?usp=sharing
扑医生-v
[√] Flutter (Channel beta, v0.3.1, on Microsoft Windows [Versione 10.0.16299.371], locale it-IT) • Flutter version 0.3.1 at C:\Program Files\Flutter\flutter • Framework revision 12bbaba9ae (12 days ago), 2018-04-19 23:36:15 -0700 • Engine revision 09d05a3891 • Dart version 2.0.0-dev.48.0.flutter-fe606f890b [√] Android toolchain - develop for Android devices (Android SDK 27.0.3) • Android SDK at C:\Users\Zanini\AppData\Local\Android\sdk • Android NDK location not configured (optional; useful for native profiling support) • Platform android-27, build-tools 27.0.3 • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02) • All Android licenses accepted. [√] Android Studio (version 3.1) • Android Studio at C:\Program Files\Android\Android Studio • Flutter plugin version 24.0.1 • Dart plugin version 173.4700 • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02) [√] Connected devices (1 available) • Nexus 5X • 01cde5e7db8d4c14 • android-arm64 • Android 8.1.0 (API 27) • No issues found!
摆脱通往/png路径的领导。应该是images/p8.png。
/
images/p8.png
另外,考虑使用清洁器Image.asset构造函数,例如:
Image.asset
new Image.asset('images/p8.png', width: 100.0, height: 100.0)