项目添加.jar文件的问题

Question

添加了两个自定义zxing和zbar库，用于读取和生成条形码，通过File> New> Jar.file在Project Structure中添加它们后添加它们并在所有已经打开的问题中选择实现编译使用但是在android studio中它不再是它实现和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'

的build.gradle（项目）

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
repositories {
    jcenter()
    mavenLocal()
    google()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.3.2'
    classpath 'com.google.gms:google-services:4.2.0'
}
  }

allprojects {
repositories {
    mavenLocal()
    jcenter()
    google()
    maven { url 'https://maven.fabric.io/public' }
}
  }

  task clean(type: Delete) {
delete rootProject.buildDir
 }

Answer 1

我建议在这里使用https://mvnrepository.com/artifact/com.google.zxing的依赖关系，但在你的情况下（只要你添加jar），你可以通过build.gradle中的implementation fileTree(include: ['*.jar'], dir: 'libs')插入它们（libs将替换为它们登陆的任何文件夹）。