1. 执行以下三行命令既可
git rm -r --cached .
git add .
git commit -m '解决GIT忽略文件失效问题'

  1. 忽略文件可以参考以下github项目，基本涵盖了所有语言的忽略设置。

  2. android忽略文件可以参考以下android项目。

  3. 以下是我使用的忽略代码，和Android github对比做了些调整，我把".idea/"整个目录都忽略了，添加了"/app/release/"这个目录。

# Built application files
*.aar
*.ap_
*.aab

# Files for the ART/Dalvik VM
*.dex

# Java class files
*.class

# Generated files
bin/
gen/
out/
#  Uncomment the following line in case you need and you don't have the release build type files in your app
# release/

# Gradle files
.gradle/
build/

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

# Proguard folder generated by Eclipse
proguard/

# Log Files
*.log

# Android Studio Navigation editor temp files
.navigation/

# Android Studio captures folder
captures/

# IntelliJ
*.iml
.idea/

# Keystore files
# Uncomment the following lines if you do not want to check your keystore files in.
#*.jks
#*.keystore

# External native build folder generated in Android Studio 2.2 and later
.externalNativeBuild
.cxx/

# Google Services (e.g. APIs or Firebase)
# google-services.json

# Freeline
freeline.py
freeline/
freeline_project_description.json

# fastlane
fastlane/report.xml
fastlane/Preview.html
fastlane/screenshots
fastlane/test_output
fastlane/readme.md

# Version control
vcs.xml

# lint
lint/intermediates/
lint/generated/
lint/outputs/
lint/tmp/
# lint/reports/

# Android Profiling
*.hprof
/app/release/