https://developer.android.com/r/tools/experimental-plugin.html

Android studio3.0 開發jni時遇到的

原因：在app的build.gradle中沒用配置cmake

android {
    ...
    defaultConfig {
        ....

        externalNativeBuild {
            cmake {
                cppFlags "-std=c++11 -D__CORRECT_ISO_CPP_WCHAR_H_PROTO"
            }
//            ndk {
//                abiFilters "armeabi", "armeabi-v7a"
//            }
        }
    }
    buildTypes {
       ...
    }
    externalNativeBuild {
        cmake {
            path "CMakeLists.txt"
        }
    }
}