文章主要描述在Android Studio中依賴NDK時如何進(jìn)行JNI的單步調(diào)試。
如果是單個NDK工程的話，可以直接在設(shè)置中設(shè)置就行，而在依賴NDK個時候晌缘，Android Studio 設(shè)置會主動調(diào)用release版本，這樣就無法單步調(diào)試痢站，所以需要進(jìn)行一些特殊的設(shè)置才行磷箕。設(shè)置方法方法如下：

• 1.首先在app module的build.gradle中添加如下代碼：

android.buildTypes {
    debug{
        debuggable true
        jniDebuggable true
    }
}

• 2.進(jìn)行工程的依賴設(shè)置，來告訴IDE使用debug的jni版本阵难。在app module的build.gradle中添加代碼如下：

dependencies {
    releaseImplementation project(path: ':<ndkModuleName>', configuration: 'release')
    debugImplementation project(path: ':<ndkModuleName>', configuration: 'debug')
}

• 3.在library module中進(jìn)行單獨(dú)設(shè)置岳枷，來允許debug版本的編譯，方法是在library module的build.gradle中添加代碼如下：

android {
    publishNonDefault true
}


configurations {
    // Expose the debug version of the library to other modules
    debug
    release
}

這樣再進(jìn)行編譯呜叫，就可以進(jìn)行NDK的單步調(diào)試了空繁。為了方便大家，我把對應(yīng)的的build.gradle貼下來：

1.app模塊的build.gradle：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.example.testndkapplication"
        minSdkVersion 15
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
    }


    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
        debug{
            debuggable true
            jniDebuggable true
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    releaseImplementation project(path: ':<ndkModuleName>', configuration: 'release')
    debugImplementation project(path: ':<ndkModuleName>', configuration: 'debug')
}

2.ndk模塊的build.gradle:

apply plugin: 'com.android.library'

android {
    compileSdkVersion rootProject.ext.android.compileSdkVersion
    buildToolsVersion rootProject.ext.android.buildToolsVersion

    defaultConfig {
        minSdkVersion rootProject.ext.android.minSdkVersion
        targetSdkVersion rootProject.ext.android.targetSdkVersion
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

        externalNativeBuild {
            cmake {
                cppFlags '-fexceptions'
                arguments '-DANDROID_STL=c++_static', '-DANDROID_TOOLCHAIN=clang','-DANDROID_ARM_MODE=arm'
                targets "geocraft_base"
            }
        }

        ndk {
            // Specifies the ABI configurations of your native
            // libraries Gradle should build and package with your APK.
            abiFilters 'armeabi-v7a','armeabi'
        }

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            debuggable true
            jniDebuggable true
        }
    }
    externalNativeBuild {
        cmake {
            path 'CMakeLists.txt'
        }
    }
}

dependencies {
    implementation 'com.android.support:appcompat-v7:27.1.1'
}

文章轉(zhuǎn)載自：Android Studio NDK多工程單步調(diào)試 -- 一個程序猿的胡思亂想