1.新建java类Test.java，在类中声明一个native方法
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| static {
System.loadLibrary("jnitest");
}
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2.进入到类所在文件夹javac Test.java 生成Test.class
3.返回到java目录 javah -jni com.example.jnitest.Test 生成com_example_jnitest_Test.h
4.新建com_example_jnitest_Test.c，把.h里的内容拷过去，写里面的方法
5.在build.gradle添加
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| ndk {
moduleName "sffstreamer"
ldLibs "log", "z", "m"
abiFilters "armeabi", "armeabi-v7a", "x86"
}
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还有
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| sourceSets {
main {
jni.srcDirs = []
}
}
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Build.gradle文件如下：
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| android {
compileSdkVersion 24
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.ishow3d.ffmpegjni"
minSdkVersion 15
targetSdkVersion 24
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
ndk {
moduleName "sffstreamer"
ldLibs "log", "z", "m"
abiFilters "armeabi", "armeabi-v7a", "x86"
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
sourceSets {
main {
jni.srcDirs = []
}
}
}
}
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