permission code not necessary to be done during the tutorial, mentioning it is sufficient

app/src/main/java/com/example/stayfitapplication/view/SessionActivity.kt

@@ -20,6 +20,8 @@ class SessionActivity : AppCompatActivity() {
     private lateinit var mBinding: SessionActivityBinding
     private lateinit var mViewModel: SessionViewModel
 
+
+    private val mSensorPermissionRequestCode = 0
     private val mBtnStartSessionId = "Start"
     private val mBtnStopSessionId = "Stop"
 
@@ -62,7 +64,20 @@ class SessionActivity : AppCompatActivity() {
     }
 
     private fun checkSensorPermissions() {
-        // TODO
+        var permissions: MutableList<String> = ArrayList()
+
+        if (ContextCompat.checkSelfPermission(
+                this,
+                Manifest.permission.BODY_SENSORS
+            ) != PackageManager.PERMISSION_GRANTED
+        ) {
+            permissions.add(Manifest.permission.BODY_SENSORS)
+        }
+
+        if (permissions.size > 0) {
+            // Sensor permission is not granted
+            requestSensorPermissions(permissions.toTypedArray())
+        }
     }
 
     private fun initUiElements() {
@@ -84,13 +99,21 @@ class SessionActivity : AppCompatActivity() {
     }
 
     private fun requestSensorPermissions(permissions: Array<String>) {
-        // TODO
+        ActivityCompat.requestPermissions(
+            this,
+            permissions,
+            mSensorPermissionRequestCode
+        )
     }
 
     override fun onRequestPermissionsResult(
         requestCode: Int,
         permissions: Array<String>, grantResults: IntArray
     ) {
-        // TODO
+        when (requestCode) {
+            mSensorPermissionRequestCode -> {
+                checkSensorPermissions()
+            }
+        }
     }
 }
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