Add scan retry button on timeout

android/app/src/main/java/com/eddy/atomrelay/MainActivity.kt

@@ -234,6 +234,8 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun setupRelayButton() {
+        relayButton.setOnClickListener(null)
+        relayButton.text = getString(R.string.button_hold)
         relayButton.setOnTouchListener { _, event ->
             when (event.action) {
                 MotionEvent.ACTION_DOWN -> {
@@ -293,6 +295,13 @@ class MainActivity : AppCompatActivity() {
         adapter?.bluetoothLeScanner?.stopScan(scanCallback)
         if (scanTimedOut) {
             statusText.text = getString(R.string.status_device_not_found)
+            relayButton.setOnTouchListener(null)
+            relayButton.text = getString(R.string.button_retry_scan)
+            relayButton.isEnabled = true
+            relayButton.setOnClickListener {
+                setupRelayButton()
+                startScan()
+            }
         }
     }
 

android/app/src/main/res/values/strings.xml

@@ -15,6 +15,7 @@
     <string name="status_bluetooth_disabled">Bluetooth not enabled</string>
     <string name="status_scanning">Scanning…</string>
     <string name="status_device_not_found">Device not found</string>
+    <string name="button_retry_scan">Opnieuw scannen</string>
 
     <!-- MainActivity UI -->
     <string name="button_on">ON</string>