fix: handle GATT_CONNECTION_TIMEOUT status in Bluetooth connection …

…state change (#1463)

* Trap code 147 on BT disconnect

If we trap code 147 on BT disconnect and then call lostConnection(), the app will attempt reconnect every 30 seconds and autoreconnect works even after prolonged disconnect.

app/src/main/java/com/geeksville/mesh/service/SafeBluetooth.kt

@@ -209,6 +209,9 @@ class SafeBluetooth(private val context: Context, private val device: BluetoothD
                                 closeGatt() // Close the old non-auto connection
                                 lowLevelConnect(true)
                             }
+                        } else if (status == 147) {
+                            info("got 147, calling lostConnection()")
+                            lostConnection("code 147")
                         }
 
                         if (status == 257) { // mystery error code when phone is hung