Android Instant App with Native C ++ Library not published on Android N device / simulator

Question

Is there a way to get the Android Instant App to work with the native C ++ library?

I am trying to publish an Android Instant App for a device / simulator, but have run into problems with my native C ++ library. It publishes fine as an installable application, but does not find the library when published as an instant application.

To fix any other problems, I started a new project in Android Studio 3.0 (Canary 1 171.4010489) using the new project wizard and selected the following settings:

First page:

• Enable C ++ Support

Second page:

• Selected phone and tablet
• Enable Android Instant App Support

Sixth page:

• ++ '++ 11'
• (-fexceptions)
• (-frtti)

( "Hello from ++" ), ... : , :

couldn't find "libnative-lib.so"

:

05-24 17:48:30.316 7519-7519/? E/AndroidRuntime: FATAL EXCEPTION: main
     Process: com.mycompany.instantapp, PID: 7519
     java.lang.UnsatisfiedLinkError: byc[DexPathList[[zip file "/data/user/0/com.google.android.instantapps.supervisor/files/atom-cache/com.mycompany.instantapp/atom-download--feature-1495662507463/feature.jar"],nativeLibraryDirectories=[/data/user/0/com.google.android.instantapps.supervisor/files/native-lib/com.mycompany.instantapp, /system/lib, /vendor/lib]]] couldn't find "libnative-lib.so"
     ...

gradle ( Android Studio):

/build.gradle:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "26.0.0 rc2"

    defaultConfig {
        applicationId "com.mycompany.instantapp"
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation project(':feature')
    implementation project(':base')
}

/build.gradle:

apply plugin: 'com.android.feature'

android {
    compileSdkVersion 25
    buildToolsVersion "26.0.0 rc2"
    baseFeature true
    defaultConfig {
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    feature project(':feature')
    compile 'com.android.support:appcompat-v7:25.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
}

/build.gradle:

apply plugin: 'com.android.feature'

android {
    compileSdkVersion 25
    buildToolsVersion "26.0.0 rc2"
    defaultConfig {
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
            cmake {
                cppFlags "-std=c++11 -frtti -fexceptions"
            }
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    externalNativeBuild {
        cmake {
            path "CMakeLists.txt"
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation project(':base')
    testCompile 'junit:junit:4.12'

}

instantapp/build.gradle:

apply plugin: 'com.android.instantapp'

dependencies {
    implementation project(':feature')
    implementation project(':base')
}

:

Google:

: Google

, (Gradle, CMake, NDK ..)

@Anirudh , , Android N.

Instant ++?

... Android Studio Include Android Instant App support, Samsung Galaxy 7S "Hello World!". .

APK?

APK , ++ feature-debug.apk, base-debug.apk. , gradle, , /.

APK... , , Instant App ... ex: ( URL-?)

++ APK?

externalNativeBuild gradle base/build.gradle feature/build.gradle, . , ++ APK, feature-debug.apk, base-debug.apk APK.

base/build.gradle:

apply plugin: 'com.android.feature'

android {
    compileSdkVersion 25
    buildToolsVersion "26.0.0 rc2"
    baseFeature true
    defaultConfig {
        minSdkVersion 23
        targetSdkVersion 25
        versionCode 1
        versionName "1.0"
        externalNativeBuild {
            cmake {
                cppFlags "-std=c++11 -frtti -fexceptions"
            }
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    externalNativeBuild {
        cmake {
            path "../feature/CMakeLists.txt"
        }
    }
}

dependencies {
    feature project(':feature')
    compile 'com.android.support:appcompat-v7:25.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
}

Answer 1

APK?

Android Studio 3.0. Signed APK , zip apks. Gradle SigningConfig Gradle, apks

++ APK?

. apk

NDK Android Instant Apps Android M/N. Android O