Android app和aar混淆方法

app混淆方法

1.在build.gradle中，将minifyEnabled设置为true以开启混淆。

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.xxx.xxx"
        minSdkVersion 14
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
        	//将minifyEnabled置为true，开启混淆
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}

2.在proguard-rules.pro中编写混淆规则。
3.编译生成release版的app

aar包生成和混淆方法

1.为了生成aar文件，需要修改build.gradle文件，将com.android.application更改为com.android.library，并注释掉applicationId。另外，需要将minifyEnabled设置为true以开启混淆。

//将com.android.application修改为com.android.library
apply plugin: 'com.android.library'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
    	//去掉applicationId
    	//applicationId "com.xxx.xxx"
        minSdkVersion 14
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
        	//将minifyEnabled置为true，开启混淆
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}

2.在proguard-rules.pro中编写混淆规则。
3.点击android studio右侧的Gradle按钮，双击assembleRelease，开始编译release版的aar包。

4.编译成功后，在build->outputs->aar目录下即可看到混淆过的release版aar包。