Flutter应用App Bundle体积从19.4MB骤增至139MB的排查求助

阿华AIGC实验室

2026-4-7

大家好，我最近遇到了一个特别头疼的问题，想请社区的朋友们帮忙分析排查下：

我的Flutter应用在上一个正式版本的App Bundle体积只有19.4MB，这次迭代我只做了些小bug修复——没有任何功能重大更新，也没新增图片或其他资源文件，但最新构建的App Bundle体积居然直接飙升到了139.6MB！更诡异的是，针对arm64架构单独打包的release APK体积还是正常的20MB左右，这完全超出了我的预期，实在摸不着头脑。

我已经做的优化配置

为了控制包体积，我已经开启了这些优化操作：

启用了 minifyEnabled 和 shrinkResources
尝试移除了 debugSymbolLevel 'FULL'（不过当前build.gradle配置里还能看到这个设置，我正在调整验证）

以下是我当前的release构建配置：

release {
    minifyEnabled true // obfuscate code and remove unused code
    shrinkResources true // shrink and remove unused resources
    proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    ndk {
        debugSymbolLevel 'FULL'
    }
    signingConfig signingConfigs.debug
    debuggable false // make app non-debuggable
    crunchPngs true // shrink images
    jniDebuggable false
    renderscriptDebuggable false
    pseudoLocalesEnabled false
    zipAlignEnabled true
}

Flutter Doctor 输出信息

我也检查了本地Flutter环境的状态，以下是flutter doctor的完整输出：

[√] Flutter (Channel stable, 3.32.5, on Microsoft Windows [Version 10.0.19043.2364], locale en-US) [521ms]
    • Flutter version 3.32.5 on channel stable at E:\SDK\sdk\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision fcf2c11572 (4 weeks ago), 2025-06-24 11:44:07 -0700
    • Engine revision dd93de6fb1
    • Dart version 3.8.1
    • DevTools version 2.45.1
[√] Windows Version (10 Pro 64-bit, 21H1, 2009) [1,501ms]
[√] Android toolchain - develop for Android devices (Android SDK version 35.0.0) [6.6s]
    • Android SDK at E:/SDK/sdk
    • Platform android-35, build-tools 35.0.0
    • ANDROID_HOME = E:/SDK/sdk
    • Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.5+-13047016-b750.29)
    • All Android licenses accepted.
[√] Chrome - develop for the web [22ms]
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[X] Visual Studio - develop Windows apps [20ms]
    X Visual Studio not installed; this is necessary to develop Windows apps.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2024.2) [17ms]
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from: https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from: https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 21.0.5+-13047016-b750.29)
[√] VS Code (version 1.100.2) [15ms]
    • VS Code at C:\Users\sukaina\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension can be installed from: https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[√] Connected device (3 available) [268ms]
    • Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.19043.2364]
    • Chrome (web) • chrome • web-javascript • Google Chrome 138.0.7204.158
    • Edge (web) • edge • web-javascript • Microsoft Edge 138.0.3351.95
[√] Network resources [753ms]
    • All expected network resources are available.

! Doctor found issues in 1 category.
Process finished with exit code 0