Mixed framework flutter apk slimming steps (from 68m-5m is not a myth, it’s that simple)

1. Remove redundant CPU architectures and keep one or two

 ndk {
    
    
            abiFilters 'armeabi-v7a'
//            abiFilters 'arm64-v8a'
        }

2. Code obfuscation

 //开启代码混淆
            minifyEnabled true
            //Zipalign优化
            zipAlignEnabled true
            // 移除无用的resource文件
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro',

3. Remove useless pub dependencies

4.dart code obfuscation

flutter build apk --obfuscate --split-debug-info=./symbols