Android(安卓)Studio配置NDK编译环境

Android jni工程从eclipse迁移到Android Studio中，

右击工程->open module setting->sdk location->android ndk location：填入ndk路径（如果是通过SDK Manager下载了NDK，则NDK路径在“...\adt\sdk\ndk-bundle”）

保留与eclipse中相同的目录结构，需要在build.gradle中添加如下配置：

task buildNative(type: Exec, description: 'Compile JNI source via NDK') {    def ndkDir = android.ndkDirectory    if (Os.isFamily(Os.FAMILY_WINDOWS)) {        commandLine "$ndkDir/ndk-build.cmd",                '-C', file('jni').absolutePath,  //指定jni目录在工程里的相对路径</span>                '-j', Runtime.runtime.availableProcessors(),                'all',                'NDK_DEBUG=1'    } else {        commandLine "$ndkDir/ndk-build",                '-C', file('jni').absolutePath,                 '-j', Runtime.runtime.availableProcessors(),                'all',                'NDK_DEBUG=1'    }}//在 mac 中 commandLine "$ndkDir/ndk-build", 在windows中 commandLine "$ndkDir/ndk-build.cmd"task cleanNative(type: Exec, description: 'Clean JNI object files') {    def ndkDir = android.ndkDirectory    if (Os.isFamily(Os.FAMILY_WINDOWS)) {        commandLine "$ndkDir/ndk-build.cmd",                '-C', file('jni').absolutePath,                 'clean'    } else {        commandLine "$ndkDir/ndk-build.cmd",                '-C', file('jni').absolutePath,                 'clean'    }}clean.dependsOn 'cleanNative'tasks.withType(JavaCompile) {    compileTask -> compileTask.dependsOn buildNative}

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