2 files changed, 13 insertions, 14 deletions

diff --git a/wallet/src/main/java/net/taler/wallet/MainActivity.kt b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
index bf1fd6d..a49890e 100644
--- a/wallet/src/main/java/net/taler/wallet/MainActivity.kt
+++ b/wallet/src/main/java/net/taler/wallet/MainActivity.kt
@@ -142,15 +142,8 @@ class MainActivity : AppCompatActivity(), OnNavigationItemSelectedListener,
             if (it) barcodeLauncher.launch(scanOptions)
         })
 
-        model.networkManager.networkStatus.observe(this) {
-            ui.content.offlineBanner.visibility =
-                if (it != null
-                    && it.hasCapability(NET_CAPABILITY_INTERNET)
-                    && it.hasCapability(NET_CAPABILITY_VALIDATED)) {
-                    GONE
-                } else {
-                    VISIBLE
-                }
+        model.networkManager.networkStatus.observe(this) { online ->
+            ui.content.offlineBanner.visibility = if (online) GONE else VISIBLE
         }
     }
 
diff --git a/wallet/src/main/java/net/taler/wallet/NetworkManager.kt b/wallet/src/main/java/net/taler/wallet/NetworkManager.kt
index 2f64f4e..7d803fc 100644
--- a/wallet/src/main/java/net/taler/wallet/NetworkManager.kt
+++ b/wallet/src/main/java/net/taler/wallet/NetworkManager.kt
@@ -21,6 +21,8 @@ import android.content.Context.CONNECTIVITY_SERVICE
 import android.net.ConnectivityManager
 import android.net.Network
 import android.net.NetworkCapabilities
+import android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET
+import android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED
 import androidx.annotation.UiThread
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
@@ -28,22 +30,26 @@ import androidx.lifecycle.MutableLiveData
 class NetworkManager(context: Context) : ConnectivityManager.NetworkCallback() {
     private val connectivityManager: ConnectivityManager
 
-    private val _networkStatus = MutableLiveData<NetworkCapabilities?>(null)
-    val networkStatus: LiveData<NetworkCapabilities?> = _networkStatus
+    private val _networkStatus = MutableLiveData(true)
+    val networkStatus: LiveData<Boolean> = _networkStatus
 
     init {
         connectivityManager = context.getSystemService(CONNECTIVITY_SERVICE) as ConnectivityManager
-        connectivityManager.registerDefaultNetworkCallback( this)
+        connectivityManager.registerDefaultNetworkCallback(this)
     }
 
     @UiThread
     override fun onCapabilitiesChanged(network: Network, networkCapabilities: NetworkCapabilities) {
         super.onCapabilitiesChanged(network, networkCapabilities)
-        _networkStatus.postValue(networkCapabilities)
+        _networkStatus.postValue(networkCapabilities.isOnline())
     }
 
     override fun onLost(network: Network) {
         super.onLost(network)
         _networkStatus.postValue(null)
     }
-}
\ No newline at end of file
+
+    private fun NetworkCapabilities.isOnline(): Boolean {
+        return hasCapability(NET_CAPABILITY_INTERNET) && hasCapability(NET_CAPABILITY_VALIDATED)
+    }
+}