iOS应用程序图标未使用颤动显示

Question

我尝试了很多方法和修复方法，但是我的应用程序图标仍然没有显示。我正在使用flutter，但我使用了flutter_launcher_icons程序包，但仍然没有用。

这是我的pubspec.yaml dev_depend：

dev_dependencies:
  flutter_launcher_icons: "^0.7.3"
  flutter_test:
    sdk: flutter

，这里是配置：

flutter_icons:
  android: "launcher_icon"
  ios: "AppIcon"
  image_path_ios: "assets/icon/icon.png"
  image_path: "assets/icon/icon.png"

这是我的AppIcon文件

这是我的flutter doctor：

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 1.20.0-1.0.pre.118, on Mac OS X 10.15.5 19F101, locale en-US)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 11.5)
[✓] Android Studio (version 4.0)
[!] IntelliJ IDEA Community Edition (version 2018.2.5)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] Connected device (1 available)

! Doctor found issues in 1 category.

这是我的资产目录应用图标，如下所示：

Answer 1

由于@SamiHaddad，我没有在Xcode的Runner文件的常规部分中将AppIcon设置为String.Substring(int startIndex, int length)。这解决了我的问题。