【Android 安装包优化】开启资源压缩 ( 资源压缩配置 | 启用严格模式的资源引用检查 | 自定义保留/移除资源配置 | 资源压缩效果 )

android {
    buildTypes {
        debug {
          shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
        release {
          shrinkResources true 
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
    tools:shrinkMode="strict" />

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
    tools:shrinkMode="strict"
    tools:keep="@layout/l_used*_c,@layout/l_used_a,@layout/l_used_b*"
    tools:discard="@layout/unused2" />

<?xml version="1.0" encoding="utf-8"?>
<x />

res/raw/keep.xml 配置文件 :
<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
    tools:shrinkMode="strict" />

plugins {
    id 'com.android.application'
    id 'kotlin-android'
}
android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"
    defaultConfig {
        applicationId "kim.hsl.svg"
        minSdkVersion 18
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        // 生成 PNG 图片配置
        //generatedDensities = ['hdpi', 'mdpi', 'xhdpi',  'xxhdpi', 'xxxhdpi']
        // 使用 com.android.support:appcompat 支持库配置
        vectorDrawables.useSupportLibrary = true
        // 国际化资源配置, 只打包默认资源与英文资源
        resConfigs 'en'
    }
    buildTypes {
        debug {
            // 开启资源压缩
            shrinkResources true
            // 开启代码压缩
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
        release {
            // 开启资源压缩
            shrinkResources true
            // 开启代码压缩
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}
dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.3.2'
    // 矢量图支持库 , 支持 5.0 以下版本手机使用矢量图 , 这个是创建应用时自带的配置
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'com.google.android.material:material:1.3.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}