当我使用proguard并启用最小化和收缩资源时，Retrofit主体请求在Retrofit中为空白

Question

当我设置minifyEnabled & shrinkResources到true，在改造身体JSON请求发送的空白，当它被设置为false，那么它完美的罚款。

我已经发布了整个gradle文件，以便您可以帮助我告诉我我做错了什么。

我的Retrofit请求json正文在以下情况下minifyEnabled & shrinkResources是这样的true：

{}

当它正常工作minifyEnabled & shrinkResources是false：

{"Data":"demoToken","Key":"demokey","Token":"2a9a8677-ac79-49d6-9947-d797b3e4d8e5"}

我的摇篮看起来像这样：

   apply {
    plugin 'com.android.application'
    plugin 'kotlin-android'
    plugin 'kotlin-android-extensions'
    plugin 'kotlin-kapt'
    plugin 'io.fabric'
    plugin 'com.google.firebase.firebase-perf'
}
android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.something.theapp"
        minSdkVersion 21
        targetSdkVersion 28
        versionCode 43 
        versionName "0.6.7"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        flavorDimensions "server"
        multiDexEnabled true
        vectorDrawables.useSupportLibrary = true
        javaCompileOptions {
            annotationProcessorOptions {
                includeCompileClasspath = true
            }
        }
    }
    signingConfigs {
        kaira {
            storeFile file('key_tts.jks')
            storePassword 'android'
            keyAlias 'tts_key'
            keyPassword 'android'
        }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.kaira
            minifyEnabled true
            shrinkResources true
            buildConfigField "boolean", "ALLOW_DATABASE", "false"
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        release {
            signingConfig signingConfigs.kaira
            minifyEnabled true
            shrinkResources true
            buildConfigField "boolean", "ALLOW_DATABASE", "false"
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    productFlavors {
        local {
            //buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.136:6264/siteapp/api/\""
//            buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.21:5678/api/\""
            //   buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.233:5677/api/\""
            //  buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.26:5678/api/\""
            //buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.25:5678/api/\""
//            buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.37:5678/api/\""
//            buildConfigField "String", "WebServiceUrl", "\"https://api.forsell.in/api/\""
            //  buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.23:5678/api/\""
            buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.29:5678/api/\""
            buildConfigField "String", "WebUrl", "\"https://someurl.in/\""
            buildConfigField "String", "ServerName", "\"-Local\""
            dimension "server"
            copy {
                from "src/local"
                include "google-services.json"
                into "."
            }
        }
        temp {
            buildConfigField "String", "WebServiceUrl", "\"http://api.lezza.in/api/\""
            buildConfigField "String", "WebUrl", "\"https://someurl.in/\""
            buildConfigField "String", "ServerName", "\"-Local\""
            dimension "server"
            copy {
                from "src/local"
                include "google-services.json"
                into "."
            }
        }
        live {
            buildConfigField "String", "WebServiceUrl", "\"https://api.someurl.in/api/\""
            buildConfigField "String", "WebUrl", "\"https://someurl.in/\""
            buildConfigField "String", "ExtClientNameNew", "\"ExtClientName:TTS\""
            dimension "server"
            copy {
                from "src/livegcm"
                include "google-services.json"
                into "."
            }
        }
        staging {
            //buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.233:85/api/\""//sunil
            //     buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.233:5677/api/\""//devang
            //   buildConfigField "String", "WebServiceUrl", "\"http://192.168.1.233:85/api/\""
            buildConfigField "String", "WebServiceUrl", "\"https://stageapi.someurl.in/api/\""
            buildConfigField "String", "WebUrl", "\"https://stageweb.someurl.in/\""
            buildConfigField "String", "ServerName", "\"-Staging\""
            dimension "server"
            copy {
                from "src/local"
                include "google-services.json"
                into "."
            }
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }
    dexOptions {
        preDexLibraries = false
        javaMaxHeapSize "4g" // 2g should be also OK
    }
    defaultConfig {
        vectorDrawables.useSupportLibrary = true
    }
    lintOptions {
        abortOnError false
        disable 'MissingTranslation'
    }
}
repositories {
    mavenCentral()
    maven { url 'https://maven.fabric.io/public' }
}

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        def requested = details.requested
        if (requested.group == 'com.android.support') {
            if (!requested.name.startsWith("multidex")) {
                details.useVersion '28.0.0'
            }
        }
    }
}
dependencies {
    def lifecycle_version = "2.0.0"
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'androidx.core:core-ktx:1.0.2'
    implementation "android.arch.lifecycle:extensions:$lifecycle_version"
    annotationProcessor "android.arch.lifecycle:compiler:$lifecycle_version"
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.vectordrawable:vectordrawable:1.0.0-alpha1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.2.0'
    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.2') {
        exclude group: 'com.google.code.findbugs'
    }
    implementation 'com.squareup.retrofit2:retrofit:2.5.0'
    implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'
    implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
    implementation 'com.squareup.okhttp3:okhttp:3.12.1'
    implementation 'com.squareup.okhttp3:logging-interceptor:3.9.0'
    implementation 'com.google.android.material:material:1.0.0'
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    implementation 'com.github.bumptech.glide:glide:4.5.0'
    implementation 'com.karumi:dexter:5.0.0'
    implementation 'com.google.android.gms:play-services-maps:16.1.0'
    implementation 'com.google.android.gms:play-services-location:16.0.0'
    implementation 'com.google.android.gms:play-services-auth:16.0.1'
    implementation 'org.jetbrains.anko:anko-common:0.9'
    implementation 'com.google.android.gms:play-services-ads:17.2.0'
    implementation 'androidx.multidex:multidex:2.0.1'
    implementation project(path: ':imagepicker')
    implementation 'androidx.percentlayout:percentlayout:1.0.0'
    implementation 'com.google.firebase:firebase-core:16.0.9'
    implementation 'com.google.firebase:firebase-inappmessaging-display:17.2.0'
    implementation 'com.google.firebase:firebase-messaging:18.0.0'
    implementation 'com.google.firebase:firebase-config:17.0.0'
    implementation 'com.google.firebase:firebase-perf:17.0.2'
    implementation 'com.github.chrisbanes:PhotoView:2.3.0'
    implementation 'com.google.android.gms:play-services-places:16.1.0'
    implementation 'com.google.android.libraries.places:places:1.1.0'
    api 'com.theartofdev.edmodo:android-image-cropper:2.8.+'
    implementation 'com.github.faruktoptas:RetrofitRssConverterFactory:0.1.0'
    implementation 'com.wang.avi:library:2.1.3'
    implementation 'com.facebook.android:facebook-android-sdk:5.4.0'
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.8@aar') {
        transitive = true
    }
    implementation 'com.haozhang.libary:android-slanted-textview:1.2'
    implementation 'com.facebook.shimmer:shimmer:0.4.0'
    implementation 'com.github.freshdesk:freshchat-android:1.5.3'
    implementation 'commons-io:commons-io:2.4'
    implementation 'com.getkeepsafe.taptargetview:taptargetview:1.12.0'
    implementation 'com.razorpay:checkout:1.5.6'
    implementation 'com.google.android.gms:play-services-analytics:17.0.0'

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

以下是我的主要模特班

class ServiceRequest {

    var Key: String? = "SiteAdminAppkey"
    var Token: String? = ""
    //    var Slug: String? = "admin"
    var Data: Any? = null
}

我可以通过添加@SerializeName注释来使它正常工作，但在每个模型类中都必须这样做。在我的另一个项目中，Proguard和所有东西都无需序列化即可工作。

Answer 1

在 proguard-rules 中添加以下行

-keepclassmembers class <yourpackagename>.** { <fields>; }

将yourpackagename替换为所有模型类所在的目录路径，例如我的情况

-keepclassmembers class com.demo.app.model.** { <fields>; }

Answer 2

在proguard-rules.pro文件中添加以下行

-keepclassmembers,allowobfuscation class * {
  @com.google.gson.annotations.SerializedName <fields>;
}

还要在gradle.properties文件中添加以下行。

android.enableR8=false

我遇到了同样的问题，并在文件的上方添加了一行内容，并为我工作。

Answer 3

这对我有用。

# Retrofit2
-keepclasseswithmembers class * {
    @retrofit2.http.* <methods>;
}
-keepclassmembernames interface * {
    @retrofit2.http.* <methods>;
}

# GSON Annotations
-keepclassmembers,allowobfuscation class * {
  @com.google.gson.annotations.SerializedName <fields>;
}

出于某种原因，即使在模型类上直接添加 @Keep 注释时，它也无法在没有 GSON 注释设置的情况下工作。