将体系结构信息从gradlew命令传递到cmake

Question

defaultConfig {
    minSdkVersion 21
    targetSdkVersion 26

    externalNativeBuild {
        cmake {
            cppFlags "-frtti -fexceptions"
            arguments "-DANDROID_ABI=<<requested arch to built>>"
        }
    }
}

Answer 1

android {   
    ...
    defaultConfig {
        externalNativeBuild {
            cmake {
                ...

                if (project.hasProperty("armeabi-v7a")) {
                    abiFilters 'armeabi-v7a'
                } else if (project.hasProperty("arm64-v8a")) {
                    abiFilters 'arm64-v8a'
                } else if (project.hasProperty("x86")) {
                    abiFilters 'x86'
                } else if (project.hasProperty("x86_64")) {
                    abiFilters 'x86_64'
                } else {
                    abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
                }
                ...
            }
        }
    }
}

./gradlew externalNativeBuild -Parmeabi-v7a