SubwayTooter-Android-App/app/build.gradle

import java.text.SimpleDateFormat

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion '25.0.2'
    defaultConfig {
        applicationId "jp.juggler.subwaytooter"
        minSdkVersion 21
        targetSdkVersion 25
        versionCode 32
        versionName "0.3.2"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    productFlavors {
        rc {
        }
    }

    // Generate Signed APK のファイル名を変更
    applicationVariants.all { variant ->
        if (variant.buildType.name == "release") {
            variant.outputs.each { output ->
                if (output.outputFile != null && output.outputFile.name.endsWith('.apk')) {
                    // Rename APK
                    def versionCode = defaultConfig.versionCode
                    def versionName = defaultConfig.versionName
                    def flavor = variant.flavorName
                    def date = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date())
                    def newName = "SubwayTooter-${flavor}-${versionCode}-${versionName}-${date}.apk"
                    output.outputFile = new File((String) output.outputFile.parent, (String) newName)
                }
            }
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support:customtabs:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile 'com.android.volley:volley:1.0.0'
    compile 'com.squareup.okhttp3:okhttp:3.7.0'
    compile 'commons-io:commons-io:2.4'
    compile 'uk.co.chrisjenx:calligraphy:2.2.0'
    compile 'com.github.woxthebox:draglistview:1.4.3'
    compile 'com.github.omadahealth:swipy:1.2.3@aar'
    compile 'com.jrummyapps:colorpicker:2.1.6'
}