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androidStudio4.1.2關於ndk配置自定義目錄的變遷

发布时间：2021-06-20 21:39:02编辑：雪饮阅读（）

 首先在於安卓中配置ndk以前是這樣的，在于app/build.gradle:

plugins {
    id 'com.android.application'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.3"

    defaultConfig {
        applicationId "com.example.penguinvideoedit"
        minSdkVersion 25
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    packagingOptions {//加上这写代码
        //pickFirst 'jquery/jszip-utils/dist/jszip-utils.js'
        //pickFirst 'jquery/jquery-ui.js'
        //pickFirst 'package-search-index.js'
        //pickFirst 'jquery/jquery-ui.structure.min.css'
        //pickFirst 'index.html'
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    /*
    sourceSets {
        main {
            jniLibs.srcDirs = ["libs"]
        }
    }
    */
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    //ndkVersion '21.4.7075529'
    //android.ndkPath 'D\\:\\\\ndk\\\\android-ndk-r21e'
    ndkPath "D:\\ndk\\android-ndk-r21e"
    /*
    android {
        ndkPath "/Users/ndkPath/ndk21"  // pointing to your own NDK
    }
    */
}

dependencies {
    //implementation(name:'ffmpeg-kit-full-4.4.LTS', ext:'aar')
    //implementation 'com.arthenica:ffmpeg-kit-full:4.4.LTS'
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'com.google.android.material:material:1.3.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    implementation project(path: ':ffmpeg-kit-full-4.4.LTS')
    implementation fileTree(dir: 'D:\\AndroidStudioProjects\\penguinvideoedit\\com.arthenica\\smart-exception-java\\0.1.0', include: ['*.aar', '*.jar'], exclude: [])
    implementation fileTree(dir: 'D:\\AndroidStudioProjects\\penguinvideoedit\\com.arthenica\\smart-exception-common\\0.1.0', include: ['*.aar', '*.jar'], exclude: [])
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
    implementation 'com.github.bumptech.glide:glide:4.0.0'
}

這裏的關鍵就是ndkVersion '21.4.7075529'

然後在local.properties中配置ndk路徑：

## This file must *NOT* be checked into Version Control Systems,
 # as it contains information specific to your local configuration.
 #
 # Location of the SDK. This is only used by Gradle.
 # For customization when using a Version Control System, please read the
 # header note.
 #Fri Apr 02 20:59:44 CST 2021
 #ndk.dir=D\:\\ndk\\android-ndk-r21e
 sdk.dir=C\:\\Program Files (x86)\\Android\\android-sdk

實則對於ndk.dir其實是對於自定義路徑來實現的，若不是自己另外單獨下載ndk，進行加載，則可以不必用，當然這個是我個人的見解了，沒有實操過。

至於版本號呢，其實你下載ndk包的時候就可以看到了

當然，也有其它方式也能獲取，自己發散思維靠直覺唄。

對於ndk的路徑，那麽圖形化的也可以在這裏進行配置

不過ndk.dir這種自定義配置單獨ndk路徑的方式于local.properties已經被官方認爲不推薦的方式了。

對於新的自定義ndk目錄的配置，官方將其和版本號的配置整合在了一起都位於app/build.gradle中，這樣也更方便了，個人覺得。那麽具體配置如app/build.gradle:

plugins {
     id 'com.android.application'
 }
 
 android {
     compileSdkVersion 30
     buildToolsVersion "30.0.3"
 
     defaultConfig {
         applicationId "com.example.penguinvideoedit"
         minSdkVersion 25
         targetSdkVersion 30
         versionCode 1
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     packagingOptions {//加上这写代码
         //pickFirst 'jquery/jszip-utils/dist/jszip-utils.js'
         //pickFirst 'jquery/jquery-ui.js'
         //pickFirst 'package-search-index.js'
         //pickFirst 'jquery/jquery-ui.structure.min.css'
         //pickFirst 'index.html'
     }
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
     /*
     sourceSets {
         main {
             jniLibs.srcDirs = ["libs"]
         }
     }
     */
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
     //ndkVersion '21.4.7075529'
     //android.ndkPath 'D\\:\\\\ndk\\\\android-ndk-r21e'
     ndkPath "D:\\ndk\\android-ndk-r21e"
     /*
     android {
         ndkPath "/Users/ndkPath/ndk21"  // pointing to your own NDK
     }
     */
 }
 
 dependencies {
     //implementation(name:'ffmpeg-kit-full-4.4.LTS', ext:'aar')
     //implementation 'com.arthenica:ffmpeg-kit-full:4.4.LTS'
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'com.google.android.material:material:1.3.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation project(path: ':ffmpeg-kit-full-4.4.LTS')
     implementation fileTree(dir: 'D:\\AndroidStudioProjects\\penguinvideoedit\\com.arthenica\\smart-exception-java\\0.1.0', include: ['*.aar', '*.jar'], exclude: [])
     implementation fileTree(dir: 'D:\\AndroidStudioProjects\\penguinvideoedit\\com.arthenica\\smart-exception-common\\0.1.0', include: ['*.aar', '*.jar'], exclude: [])
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
     implementation 'com.github.bumptech.glide:glide:4.0.0'
 }

沒錯就是這個android節點中的ndkPath "D:\\ndk\\android-ndk-r21e"

可以發現這裏如果有盤符則盤符後面不用加反斜杠了，反觀之前在local.properties中配置：

## This file must *NOT* be checked into Version Control Systems,
 # as it contains information specific to your local configuration.
 #
 # Location of the SDK. This is only used by Gradle.
 # For customization when using a Version Control System, please read the
 # header note.
 #Fri Apr 02 20:59:44 CST 2021
 #ndk.dir=D\:\\ndk\\android-ndk-r21e
 sdk.dir=C\:\\Program Files (x86)\\Android\\android-sdk

其實就只是盤符後面是否加反斜杠而已。