Connection is set up, and sending commands is possible, just not recieving

.gitignore

.idea/encodings.xml

.idea/gradle.xml

.idea/misc.xml

.idea/runConfigurations.xml

.idea/vcs.xml

app/.gitignore

app/build.gradle

app/proguard-rules.pro

...dTest/java/e/jdlopez/musicpi/ExampleInstrumentedTest.java

app/src/main/AndroidManifest.xml

app/src/main/java/e/jdlopez/musicpi/MainActivity.java

app/src/main/java/e/jdlopez/musicpi/SocketHandler.java

app/src/main/java/e/jdlopez/musicpi/previewActivity.java

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

app/src/main/res/drawable/ic_launcher_background.xml

app/src/main/res/layout/activity_main.xml

app/src/main/res/layout/activity_preview.xml

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml