demo values at start

app/src/main/java/ovh/smayzy/i2d_project_15_app/MainActivity.kt

@@ -93,6 +93,7 @@ class MainActivity : AppCompatActivity() {
                 listenForData()
             }.start()
         }
+        loadInitialReadings()
     }
 
     private fun connectToHC05() {
@@ -274,4 +275,21 @@ class MainActivity : AppCompatActivity() {
 
         return pipedInput
     }
+
+    private fun loadInitialReadings() {
+        val initialReadings = listOf(
+            SensorReading(0, 22.8f, 67.4f),
+            SensorReading(10, 9.0f, 70.2f),
+            SensorReading(20, 5.8f, 58.2f),
+            SensorReading(30, 12.8f, 32.1f),
+            SensorReading(40, 25.8f, 25.7f),
+            SensorReading(50, 5.8f, 72.7f)
+        )
+        sensorHistory.addAll(initialReadings)
+        updateChartData()
+
+        val last = initialReadings.last()
+        tempCircle.text = getString(R.string.temp_format, last.temperature)
+        humCircle.text = getString(R.string.hum_format, last.humidity)
+    }
 }