org.apache.http.legacy.jar Proguard 错误答案

【问题标题】：org.apache.http.legacy.jar Proguard errororg.apache.http.legacy.jar Proguard 错误
【发布时间】：2016-08-13 09:44:28
【问题描述】：

当我使用httpclient-4.5.2.jar + httpcore-4.4.4.jar 时，Proguard 工作正常。但是当我用org.apache.http.legacy.jar替换上面的包时，报下面Proguard错误：

Proguard returned with error code 1. See console
Note: there were 273 duplicate class definitions.
Warning: library class android.webkit.WebView depends on program class android.net.http.SslCertificate
Warning: library class android.webkit.WebView depends on program class android.net.http.SslCertificate
Warning: library class android.webkit.WebViewClient depends on program class android.net.http.SslError
      You should check if you need to specify additional program jars.
Warning: there were 3 instances of library classes depending on program classes.
         You must avoid such dependencies, since the program classes will
         be processed, while the library classes will remain unchanged.
java.io.IOException: Please correct the above warnings first.
    at proguard.Initializer.execute(Initializer.java:321)
    at proguard.ProGuard.initialize(ProGuard.java:211)
    at proguard.ProGuard.execute(ProGuard.java:86)
    at proguard.ProGuard.main(ProGuard.java:492)

我该如何解决这个问题？

【问题讨论】：

标签： android android-proguard

【解决方案1】：

在你的build.gradle 中使用下面的代码，而不是导入 jar 文件：

useLibrary 'org.apache.http.legacy'

作为参考，请检查此代码：

android {
compileSdkVersion 23
buildToolsVersion "24.0.0"
useLibrary 'org.apache.http.legacy'

defaultConfig {
    applicationId "com.application.abc"
    minSdkVersion 16
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

【讨论】：