无法使用 android studio 3.1.3 为 ApkVariantOutputImpl_Decorated 设置只读 属性 'outputFile' 的值

Question

Hello friends,
I am facing one issue in app.gradle file when use proguard ruls with new android studio version is 3.1.3. its working proper on old studio version 2.3.3.
My full error Cannot set the value of read-only property 'outputFile' for ApkVariantOutputImpl_Decorated{apkData=Main{type=MAIN, fullName=debug, filters=[]}} of type com.android.build.gradle.internal.api.ApkVariantOutputImpl.

App.Gradle 文件:
android { ..................... buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' applicationVariants.all { variant -> variant.outputs.each { output -> output.outputFile = new File(output.outputFile.parent, output.outputFile.name.replace(".apk", "-" + defaultConfig.versionName + ".apk")) } } } } }

塔汉克斯，

Answer 1

输出文件 属性 不再可用于变体输出。你应该可以这样得到它：

def variantOutput = ...
def outputFile

try
{
    outputFile = variantOutput.outputFile
}
catch (Exception ex)
{
    def packageTask = variantOutput.packageApplication
    outputFile = packageTask.outputFile
}

Answer 2

对于Gradle 3.0+**

android {
...
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        applicationVariants.all { variant ->
            variant.outputs.all {
                def formattedDate = new Date().format('yyyyMMddHHmmss')
                def flavor = variant.name
                def versionName = variant.versionName
                outputFileName = "AppName_${versionName}_${flavor}_${formattedDate}.apk"
            }
        }
    }
}
...
}

结果：

AppName_release_1_20200121175123.apk