local.properties

Android Studio默认生成的local.properties如下所示。

## This file is automatically generated by Android Studio. 
# Do not modify this file -- YOUR CHANGES WILL BE ERASED! 
# 
# This file should *NOT* be checked into Version Control Systems, 
# as it contains information specific to your local configuration. 
# 
# Location of the SDK. This is only used by Gradle. 
# For customization when using a Version Control System, please read the 
# header note. 
sdk.dir=/Users/xuyisheng/Library/Android/sdk

在Android Studio自动创建的工程中，IDE自动配置了local.properties，并设置了sdk.dir属性。从命名就可以看出，这里配置了Android Gradle插件所需要使用的Android SDK的路径。由于已经设置了Android_Home环境变量，所以IDE能够自动生成这个配置文件。通常情况下都不需要修改这个配置文件，除非你一定要重新指定一个SDK的路径。