Updated to 20-21 sdk

.gitignore

@@ -1,28 +1,87 @@
-# built application files
+# Built application files
 *.apk
+*.aar
 *.ap_
+*.aab
+
+!libs/*.aar
+
+# Files for the ART/Dalvik VM
+*.dex
 
 # Java class files
 *.class
 
-# generated files
+# 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
 
-# Windows thumbnail db
-Thumbs.db
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
 
-# OSX files
-.DS_Store
+# Android Studio captures folder
+captures/
 
-# Android Studio
+# IntelliJ
 *.iml
-.idea
-.gradle
-build/
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
+
+# 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
 
-*ASUS_PC_01*
+# Version control
+vcs.xml
 
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/