设置build.gradle打包时自动加时间

在build.gradle中添加以下函数：

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def releaseTime() {   return new Date().format("yyyyMMddHHmm", TimeZone.getTimeZone("GMT+08:00")) }

 引用这个函数：

def fileName = "SecyrityPassDemo_${defaultConfig.versionName}_${releaseTime()}_${variant.productFlavors[0].name}.apk"
以下是一个完整的build.gradle文件

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apply plugin: 'com.android.application'   android {     compileSdkVersion 26     buildToolsVersion "26.0.2"     defaultConfig {         applicationId "com.pci.securigydemotest"         minSdkVersion 19         targetSdkVersion 26         versionCode 1         versionName "1.0"         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"     signingConfigs {         release {             storeFile file("/APP_Keystore/keyless.keystore")   //签名文件全路径             storePassword "123456"             keyAlias "keyless.keystore"             keyPassword "123456"         }     }     applicationVariants.all { variant ->     variant.outputs.each { output ->         def outputFile = output.outputFile         if (outputFile != null && outputFile.name.endsWith('.apk')) {             // 输出apk名称为Pos_v1.0.0_201709251000_.apk             def fileName = "SecyrityPassDemo_${defaultConfig.versionName}_${releaseTime()}_${variant.productFlavors[0].name}.apk"             output.outputFile = new File(outputFile.parent, fileName)         }     } } productFlavors {     Beta {         manifestPlaceholders = [UMENG_CHANNEL_VALUE: "Beta"]     } }     }     buildTypes {         release {             signingConfig signingConfigs.release             minifyEnabled false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'         }     }         repositories {         flatDir {             dirs 'libs'         }       } } android {       lintOptions {           abortOnError false       }   } def releaseTime() {   return new Date().format("yyyyMMddHHmm", TimeZone.getTimeZone("GMT+08:00")) } dependencies {     compile fileTree(dir: 'libs', include: ['*.jar'])     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {         exclude group: 'com.android.support', module: 'support-annotations'     })     compile 'com.android.support:appcompat-v7:26.0.0-alpha1'     compile(name: 'security-release', ext: 'aar')     compile 'com.android.support.constraint:constraint-layout:1.0.2'     testCompile 'junit:junit:4.12'     }