If you want to minify a Flutter app with Proguard? We will enable shrinking and obfuscation in the build file. Find build.gradle file which sits inside /android/app/ folder and add lines in bold
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | android { ... buildTypes { release { signingConfig signingConfigs.debug minifyEnabled true useProguard true proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } |
Next we will create a configuration which will preserve entire Flutter wrapper code. Create /android/app/proguard-rules.pro file and insert inside:
1 2 3 4 5 6 7 | #Flutter Wrapper -keep class io.flutter.app.** { *; } -keep class io.flutter.plugin.** { *; } -keep class io.flutter.util.** { *; } -keep class io.flutter.view.** { *; } -keep class io.flutter.** { *; } -keep class io.flutter.plugins.** { *; } |
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