Android studio自定义变量

定义变量：

gradle.properties

COMPILE_SDK_VERSION=25BUILD_TOOLS_VERSION=25.0.0TARGET_SDK_VERSION=23MIN_SDK_VERSION=8

使用变量：

build.gradle中

apply plugin: 'com.android.application'android {compileSdkVersion COMPILE_SDK_VERSION as int buildToolsVersion BUILD_TOOLS_VERSIONdefaultConfig {minSdkVersion MIN_SDK_VERSION as int targetSdkVersion TARGET_SDK_VERSION as int }