HyperLPR/Prj-Android/app/build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion '27.0.3'
    defaultConfig {
        applicationId "pr.platerecognization"
        minSdkVersion 19
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
            cmake {
                cppFlags "-std=c++11"
//                cppFlags "-std=c++11 -frtti -fexceptions"
//                abiFilters 'armeabi-v7a'
                arguments '-DANDROID_STL=gnustl_static'
//                arguments '-DANDROID_STL=gnustl_shared'
//                        '-DANDROID_ABI=armeabi-v7a'
            }
        }
        ndk {
            // Specifies the ABI configurations of your native
            // libraries Gradle should build and package with your APK.
//           abiFilters 'x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'arm64-v8a', 'mips', 'mips64'
            abiFilters 'armeabi-v7a'
        }

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    sourceSets.main {
        jni.srcDirs = [] // This prevents the auto generation of Android.mk
        jniLibs.srcDirs = ['libs','src/main/cpp/opencv342/sdk/native/libs']
        //jniLibs.srcDirs =['src/main/libs','src/main/jniLibs']
    }
  /*  externalNativeBuild {
        cmake {
            path 'src/main/cpp/CMakeLists.txt'
        }
    }*/
    externalNativeBuild {
        cmake {
            path 'src/main/cpp/CMakeLists.txt'
        }
    }
}

dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation project(':openCVLibrary342')
}