build.gradle

apply plugin: 'com.android.library'


android {
    compileSdk 28

    defaultConfig {
        minSdk 15
        targetSdk 28

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        consumerProguardFiles "consumer-rules.pro"
        externalNativeBuild {
            cmake {
                arguments '-DANDROID_PLATFORM=android-21', '-DANDROID_STL=c++_shared', "-DANDROID_TOOLCHAIN=clang"
                abiFilters 'armeabi-v7a', 'arm64-v8a'
                cppFlags "-std=c++11"
            }
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    externalNativeBuild {
        cmake {
            path "src/main/cpp/CMakeLists.txt"
            version "3.10.2"
        }
    }
    sourceSets {
        main {
            jniLibs.srcDirs = ['libs']
        }
    }
    ndkVersion '20.1.5948944'
}

dependencies {

    implementation 'com.android.support:appcompat-v7:28.0.0'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

def FD_CXX_LIB = [
        [
                'src' : 'https://bj.bcebos.com/fastdeploy/test/fastdeploy-android-latest-shared-dev.tgz',
                'dest': 'libs'
        ]
]

task downloadAndExtractLibs(type: DefaultTask) {
    doFirst {
        println "[INFO] Downloading and extracting fastdeploy android c++ lib ..."
    }
    doLast {
        String cachePath = "cache"
        if (!file("${cachePath}").exists()) {
            mkdir "${cachePath}"
        }
        FD_CXX_LIB.eachWithIndex { lib, index ->
            String[] libPaths = lib.src.split("/")
            String libName = libPaths[libPaths.length - 1]
            libName = libName.split("\\.")[0]
            boolean copyFiles = !file("${lib.dest}/${libName}").exists()
            if (!file("${cachePath}/${libName}.tgz").exists()) {
                println "[INFO] Downloading ${lib.src} -> ${cachePath}/${libName}.tgz"
                ant.get(src: lib.src, dest: file("${cachePath}/${libName}.tgz"))
                copyFiles = true
            }
            if (copyFiles) {
                println "[INFO] Taring ${cachePath}/${libName}.tgz -> ${lib.dest}/${libName}"
                copy {
                    from tarTree("${cachePath}/${libName}.tgz")
                    into "${lib.dest}"
                }
            } else {
                println "[INFO] ${lib.dest}/${libName} already exists!"
            }
        }
    }
}

preBuild.dependsOn downloadAndExtractLibs