File list (Check if you may need any files):
android-web-api-sample-master
.............................\.gitignore
.............................\.idea
.............................\.....\.name
.............................\.....\compiler.xml
.............................\.....\copyright
.............................\.....\.........\profiles_settings.xml
.............................\.....\gradle.xml
.............................\.....\misc.xml
.............................\.....\modules.xml
.............................\.....\vcs.xml
.............................\LICENSE.txt
.............................\README.md
.............................\SpotifySample.iml
.............................\app
.............................\...\.gitignore
.............................\...\app.iml
.............................\...\build.gradle
.............................\...\libs
.............................\...\....\spotify-web-api-android-0.1.0.aar
.............................\...\proguard-rules.pro
.............................\...\src
.............................\...\...\androidTest
.............................\...\...\...........\java
.............................\...\...\...........\....\demo
.............................\...\...\...........\....\....\example
.............................\...\...\...........\....\....\.......\com
.............................\...\...\...........\....\....\.......\...\spotifysample
.............................\...\...\...........\....\....\.......\...\.............\ApplicationTest.java
.............................\...\...\main
.............................\...\...\....\AndroidManifest.xml
.............................\...\...\....\java
.............................\...\...\....\....\demo
.............................\...\...\....\....\....\example
.............................\...\...\....\....\....\.......\com
.............................\...\...\....\....\....\.......\...\spotifysample
.............................\...\...\....\....\....\.......\...\.............\MainActivity.java
.............................\...\...\....\res
.............................\...\...\....\...\layout
.............................\...\...\....\...\......\activity_main.xml
.............................\...\...\....\...\menu
.............................\...\...\....\...\....\menu_main.xml
.............................\...\...\....\...\mipmap-hdpi
.............................\...\...\....\...\...........\ic_launcher.png
.............................\...\...\....\...\mipmap-mdpi
.............................\...\...\....\...\...........\ic_launcher.png
.............................\...\...\....\...\mipmap-xhdpi
.............................\...\...\....\...\............\ic_launcher.png
.............................\...\...\....\...\mipmap-xxhdpi
.............................\...\...\....\...\.............\ic_launcher.png
.............................\...\...\....\...\values-w820dp
.............................\...\...\....\...\.............\dimens.xml
.............................\...\...\....\...\values
.............................\...\...\....\...\......\dimens.xml
.............................\...\...\....\...\......\strings.xml
.............................\...\...\....\...\......\styles.xml
.............................\build.gradle
.............................\gradle.properties
.............................\gradle
.............................\......\wrapper
.............................\......\.......\gradle-wrapper.jar
.............................\......\.......\gradle-wrapper.properties
.............................\gradlew
.............................\gradlew.bat
.............................\settings.gradle