fix(suite-native): enable to confirm receive address outside our app

- We are closing device connection on going to background, so we have to reopen it once needed. We can open the device even on background. But Suite has to be still running, not killed.
- Closing all the devices OnActivityEntersBackground is a good thing because we want to allow other apps (like browser) to work with the Trezor too and it is a good practice to frees up system resources.

Author: matejkriz

Diff for: packages/react-native-usb/android/src/main/java/io/trezor/rnusb/ReactNativeUsbModule.kt

@@ -150,7 +150,15 @@ class ReactNativeUsbModule : Module() {
             for (device in devicesList) {
                 if (usbManager.hasPermission(device)) {
                     Log.d(LOG_TAG, "Has permission, send event onDeviceConnected: $device")
-                    val webUsbDevice = openDevice(device.deviceName)
+                    
+                    val webUsbDevice = if (hasOpenedConnection(device.deviceName)) {
+                        Log.d(LOG_TAG, "Device already opened: $device")
+                        getWebUSBDevice(device)
+                    } else {
+                        Log.d(LOG_TAG, "Opening device: $device")
+                        openDevice(device.deviceName)
+                    }
+
                     sendEvent(ON_DEVICE_CONNECT_EVENT_NAME, webUsbDevice)
                     devicesHistory[device.deviceName] = webUsbDevice
                 } else if (!devicesRequestedPermissions.contains(
@@ -218,7 +226,7 @@ class ReactNativeUsbModule : Module() {
             Log.e(LOG_TAG, "Failed to open device ${device.deviceName}")
             throw Exception("Failed to open device ${device.deviceName}")
         }
-        Log.d(LOG_TAG, "Opening device ${device.deviceName}")
+
         openedConnections[device.deviceName] = usbConnection
 
         // log all endpoints for debug purposes
@@ -300,7 +308,10 @@ class ReactNativeUsbModule : Module() {
         val dataByteArray = data.split(",").map { it.toInt().toByte() }.toByteArray()
         Log.d(LOG_TAG, "dataByteArray: $dataByteArray")
         val device = getDeviceByName(deviceName)
-        val usbConnection = getOpenedConnection(deviceName)
+        val usbConnection = openedConnections.getOrPut(device.deviceName) {
+            Log.d(LOG_TAG, "Reopening device ${device.deviceName}")
+            usbManager.openDevice(device) ?: throw Exception("Failed to open device ${device.deviceName}")
+        }
 
         val usbEndpoint = device.getInterface(INTERFACE_INDEX).getEndpoint(1)
         if (usbEndpoint == null) {
@@ -315,7 +326,11 @@ class ReactNativeUsbModule : Module() {
     private fun transferIn(deviceName: String, endpointNumber: Int, length: Int): IntArray {
         Log.d(LOG_TAG, "Reading data from device $deviceName")
         val device = getDeviceByName(deviceName)
-        val usbConnection = getOpenedConnection(deviceName)
+
+        val usbConnection = openedConnections.getOrPut(device.deviceName) {
+            Log.d(LOG_TAG, "Reopening device ${device.deviceName}")
+            usbManager.openDevice(device) ?: throw Exception("Failed to open device ${device.deviceName}")
+        }
 
         val usbEndpoint = device.getInterface(INTERFACE_INDEX).getEndpoint(0)