将.jar文件添加到项目的问题

Question

添加了两个自定义zxing和zbar库，用于通过File>New>Jar.file添加它们，然后在项目结构中也添加了它们，并在所有已经打开的问题中使用了编译，但在Android Studio中，它不再是实现和api如何正确添加它们？

build.gradle （app）

apply plugin: 'com.android.application'

check.dependsOn 'assembleDebugAndroidTest'

android {

compileSdkVersion 28

flavorDimensions "minSdkVersion"

defaultConfig {

    minSdkVersion 16

    targetSdkVersion 28

    versionCode 1

    versionName "1.0"

    testInstrumentationRunner 

'android.support.test.runner.AndroidJUnitRunner'

}

buildTypes {

    release {

        minifyEnabled true

        proguardFiles getDefaultProguardFile('proguard-android.txt'), 

'proguard-rules.pro'

    }

}

compileOptions {

    sourceCompatibility 1.8

    targetCompatibility 1.8

}

}

configurations.all {

resolutionStrategy.force 'com.android.support:support-annotations:28.0.0'

}

dependencies {

implementation 'com.android.support:multidex:1.0.3'

implementation 'com.android.support.constraint:constraint-layout:1.1.3'

//noinspection GradleCompatible

implementation 'com.android.support:appcompat-v7:28.0.0'

implementation 'com.android.support:support-v4:28.0.0'

implementation 'com.android.support:animated-vector-drawable:28.0.0'

implementation 'com.android.support:cardview-v7:28.0.0'

implementation 'com.android.support:design:28.0.0'

// Firebase Authentication

implementation 'com.google.firebase:firebase-core:16.0.7'

implementation 'com.google.firebase:firebase-auth:16.2.0'

implementation 'com.google.android.gms:play-services-maps:16.1.0'

implementation 'com.google.firebase:firebase-database:16.0.1'

androidTestImplementation 'com.android.support.test.espresso:espresso- 

   core:3.0.2'

androidTestImplementation 'com.android.support.test:rules:1.0.2'

androidTestImplementation 'com.android.support.test:runner:1.0.2'

implementation project(':zbar')

implementation project(':zxing_core')

}

apply plugin: 'com.google.gms.google-services'

Answer 1

我建议从这里使用依赖项 https://mvnrepository.com/artifact/com.google.zxing 但是在你的情况下（只要你添加jar），你可以通过build.gradle（库被它们放入的任何文件夹替换）插入它们。implementation fileTree(include: ['*.jar'], dir: 'libs')