如何在NDK中用C计算输入整数数组

int calculate(int* array, int length) {
    int sum = 0;
    for (int i = 0; i < length; i++) {
        sum += array[i];
    }
    return sum;
}

android {
    // ...
    defaultConfig {
        // ...
        externalNativeBuild {
            cmake {
                cppFlags "-std=c++11" // 如果需要使用C++语言，添加此行
                abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
            }
        }
    }
    // ...
    externalNativeBuild {
        cmake {
            path "src/main/jni/CMakeLists.txt"
        }
    }
}

cmake_minimum_required(VERSION 3.4.1)

add_library(calc SHARED calc.c)

# 如果需要使用C++语言，使用以下代码
# add_library(calc SHARED calc.cpp)

# 如果需要链接其他库，可以使用以下代码
# target_link_libraries(calc log)

public class Calculator {
    public native int calculate(int[] array, int length);
}

public class Calculator {
    static {
        System.loadLibrary("calc");
    }

    public native int calculate(int[] array, int length);
}

Calculator calculator = new Calculator();
int[] array = {1, 2, 3, 4, 5};
int result = calculator.calculate(array, array.length);