AndroidStudio引入so文件

项目中需要引入几个 so文件，但APP一直崩溃报错

java.lang.UnsatisfiedLinkError: Couldn’t load ad from loader dalvik.system.PathClassLoader…

修改 app 下的 build.gradle 文件，添加下方代码：

    // 将 .so 文件打包为 Native_Libs.jar 包文件
    task nativeLibsToJar(type: Zip, description: "create a jar archive of the native libs") {
        destinationDir file("$projectDir/libs")
        baseName "Native_Libs"
        extension "jar"
        from fileTree(dir: "libs", include: "**/*.so")
        into "lib"
    }
    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn(nativeLibsToJar)
    }

    sourceSets.main{
        jniLibs.srcDirs = ['libs'];
    }

另外在 dependencies 中加入一行

compile files('libs/Native_Libs.jar') // 加载上方 .so 生成的该文件

至于这个包的名字 Native_Libs 是可以通过 baseName 自定义的

下面贴上完整的 build.gradle 文件：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.xxx.xxx.xxx"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 2
        versionName "2.0.1"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    // 将 .so 文件打包为 Native_Libs.jar 包文件
    task nativeLibsToJar(type: Zip, description: "create a jar archive of the native libs") {
        destinationDir file("$projectDir/libs")
        baseName "Native_Libs"
        extension "jar"
        from fileTree(dir: "libs", include: "**/*.so")
        into "lib"
    }
    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn(nativeLibsToJar)
    }

    sourceSets.main{
        jniLibs.srcDirs = ['libs'];
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.joanzapata.iconify:android-iconify-fontawesome:2.2.1'
    compile 'com.joanzapata.iconify:android-iconify-ionicons:2.2.1'
    compile files('libs/Chance_Ad_SDK_Android_v5.3.5.jar')
    compile files('libs/Native_Libs.jar') // 加载上方 .so 生成的该文件
}