Add recording capability to simple controller.

app/src/main/java/org/vato/carcontroller/SimpleController.java

@@ -2,15 +2,19 @@ package org.vato.carcontroller;
 
 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.view.View;
 import android.widget.SeekBar;
+import android.widget.Switch;
 
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.preference.PreferenceManager;
 
 public class SimpleController extends AppCompatActivity implements SeekBar.OnSeekBarChangeListener {
 
-    SeekBar steeringSlider;
-    SeekBar throttleSlider;
+    private SeekBar steeringSlider;
+    private SeekBar throttleSlider;
+    private Switch recordSwitch;
+
     private static PiLoader grpcController;
 
     @Override
@@ -26,6 +30,8 @@ public class SimpleController extends AppCompatActivity implements SeekBar.OnSee
         if (throttleSlider != null) {
             throttleSlider.setOnSeekBarChangeListener(this);
         }
+
+        recordSwitch = findViewById(R.id.recordSwitch);
     }
 
     @Override
@@ -83,4 +89,12 @@ public class SimpleController extends AppCompatActivity implements SeekBar.OnSee
         steeringSlider.setProgress(50);
         throttleSlider.setProgress(50);
     }
+
+    public void saveRecording(View view) {
+        grpcController.saveRecording();
+    }
+
+    public void record(View view) {
+        grpcController.record(recordSwitch.isSelected());
+    }
 }