一、首先把生成的so放到对应的目录下例如：
二、在gradle中配置
下面给出代码：
apply plugin: 'com.android.application' android { compileSdkVersion 25 buildToolsVersion "25.0.3" defaultConfig { applicationId "com.fly.customview.jni.nativeif" minSdkVersion 16 targetSdkVersion 25 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } repositories { flatDir { dirs 'libs' } } //让AS识别libs下的.so第三方包 sourceSets.main { jniLibs.srcDirs = ['libs'] } //这个是解决lint报错的代码 lintOptions { quiet true // if true, stop the gradle build if errors are found abortOnError false // if true, only report errors ignoreWarnings true } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:25.3.1' compile 'com.android.support.constraint:constraint-layout:1.0.2' testCompile 'junit:junit:4.12' }三、这一步很关键，一定要把加载调用so的类和生成so文件时的包名一致，否则，会调用不成功：
package com.fly.customview.jni.nativeif; /** * Created by Administrator on 2017/8/7. * */ public class NativeCalculate { static { System.loadLibrary("Jni"); } public static native int add(int a, int b); }四、调用
package com.fly.customview.jni.nativeif; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); int add = NativeCalculate.add(1, 2); Log.e("MainActivity","JNI 加法 = " + add); } }到此结束，简单的生成so,及调用so库的套路。 谢谢阅读
