Android Studio Gradle项目中添加JNI so文件

 首先在Android Studio(版本1.2.2)工程的app目录下创建整个jni目录,jni目录里写Android.mk、Application.mk以及各类C/C++和汇编源文件。然后跟原来一样,用ndk_build工具去编,然后工具会自动生成libs目录,里面还有每个你在Application.mk里所指定处理器架构的so文件。
如果是引用第三方so,直接把相关的文件放在libs目录下
然后编辑app目录下的build.gradle文件,为其添加以下代码:
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sourceSets {
main {
jniLibs.srcDirs = ['libs']
}
}

完整的build.gradle文件如下所示:

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apply plugin: 'com.android.application'

android {
compileSdkVersion 22
buildToolsVersion "22.0.1"

defaultConfig {
applicationId "com.qianmi.myapp"
minSdkVersion 15
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}

lintOptions {
disable 'InvalidPackage'
}

sourceSets {
main {
jniLibs.srcDirs = ['libs']
}
}
packagingOptions {
exclude 'META-INF/services/javax.annotation.processing.Processor'
}

}

dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:22.2.0'
compile 'com.google.code.gson:gson:2.3'
compile 'com.mcxiaoke.volley:library:1.0.16'
compile 'com.android.support:design:22.2.0'
compile 'com.android.support:cardview-v7:22.2.0'
compile 'com.android.support:recyclerview-v7:22.2.0'
compile 'com.github.bumptech.glide:glide:3.6.0'
compile 'com.jakewharton:butterknife:7.0.1'
}
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