有没有办法在flutter中使用.svg作为应用程序图标？

Question

我使用

flutter_launcher_icons

包在 flutter 应用程序中设置默认应用程序图标（特别适用于 Android）。 现在，我必须使用

svg

文件作为图标，因为

png

图标在通知栏中的深色主题 Android 版本中无法正确显示。 但它显示了一些

NoDecoderForImageFormatException

的错误。

pubspec.yaml 文件配置：

flutter_icons:
  #  image_path: "assets/images/icon-128x128.png"
  android: "launcher_icon"
  ios: true
  image_path: "assets/images/logo.svg"

这是

flutter pub run flutter_launcher_icons:main

命令的输出。

pub run flutter_launcher_icons:main
  ════════════════════════════════════════════
     FLUTTER LAUNCHER ICONS (v0.9.0)                               
  ════════════════════════════════════════════
  
• Creating default icons Android

✓ Successfully generated launcher icons
Unhandled exception:

✗ ERROR: NoDecoderForImageFormatException 
assets/images/logo.svg
#0      decodeImageFile (package:flutter_launcher_icons/utils.dart:37:5)
#1      createDefaultIcons (package:flutter_launcher_icons/android.dart:35:24)
#2      createIconsFromConfig (package:flutter_launcher_icons/main.dart:103:5)
#3      createIconsFromArguments (package:flutter_launcher_icons/main.dart:60:7)
#4      main (file:///home/jspw/Android/Sdk/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_launcher_icons-0.9.0/bin/main.dart:6:3)
#5      _delayEntrypointInvocation.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:281:32)
#6      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12)
pub finished with exit code 255

Answer 1

包flutter_launcher_icons仅使用PNG图像来创建所有不同尺寸的徽标（hdpi、mdpi、xhdpi等...）

如果您在使用 Android 时遇到问题，您是否尝试过使用

adaptive_icon_background

和

adaptive_icon_foreground

属性？

Answer 2

确保使用

adaptive_icon_background

和

adaptive_icon_foreground

，如下所示：

dev_dependencies:
  ...
  flutter_launcher_icons: "^0.14.2"

flutter_launcher_icons:
  android: true                                             //just replace the existing one
  ios: true
  image_path: "images/launcher_icon.png"                    //must match the file name!!!
  adaptive_icon_background: "#ffffff"
  adaptive_icon_foreground: "images/launcher_icon.png"      //must match the file name!!!
  min_sdk_android: 21
  web:
    generate: true
  windows:
    generate: true
  macos:
    generate: true