Android Studio 工程的 .gitignore

新建一个 Android Studio 工程时会默认建立两个 .gitignore 文件

.gitignore

*.iml
.gradle
/local.properties
/.idea/workspace.xml
/.idea/libraries
.DS_Store
/build
/captures

app/.gitignore

/build

但这还不够。顶层 .gitignore 改成如下才干净。从 stackoverflow 找到的，备份于此：

# apply from stackoverflow by sam
#
# http://stackoverflow.com/questions/16736856/what-should-be-in-my-gitignore-for-an-android-studio-project #

*.iml
.gradle
/local.properties
/.idea/workspace.xml
/.idea/libraries
.DS_Store
/build
/captures
.DS_Store

#built application files
*.apk
*.ap_

# files for the dex VM
*.dex

# Java class files
*.class

# generated files
bin/
gen/

# Local configuration file (sdk path, etc)
local.properties

# Windows thumbnail db
Thumbs.db

# OSX files
.DS_Store

# Eclipse project files
.classpath
.project

# Android Studio
*.iml
.idea
#.idea/workspace.xml - remove # and delete .idea if it better suit your needs.
.gradle
build/

#NDK
obj/

*.swp
*~