Implement network retry mechanism across repositories and add connectivity monitoring

- Introduced `retryOnNetworkFailure` function to handle network-related exceptions and retry requests.
- Updated `GalleryRepository`, `HomeRepository`, `LoginRepository`, `MannschaftenRepository`, `NewsletterRepository`, `PasskeyRepository`, `ProfileRepository`, `PublicPagesRepository`, `SpielplanRepository`, `TermineRepository`, and `TrainingRepository` to use the new retry mechanism.
- Added `ConnectivityMonitor` to track internet connectivity status and notify UI components.
- Enhanced `NavigationViewModel`, `CmsViewModel`, `MembersViewModel`, and `MemberAreaViewModel` to reload data when connectivity is restored.
- Bumped app version to 0.9.16.

android-app/app/src/main/java/de/harheimertc/data/ConnectivityMonitor.kt

@@ -0,0 +1,49 @@
+package de.harheimertc.data
+
+import android.content.Context
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class ConnectivityMonitor @Inject constructor(
+    @ApplicationContext private val context: Context,
+) {
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
+    private val _online = MutableStateFlow(hasInternetAccess())
+    val online: StateFlow<Boolean> = _online.asStateFlow()
+
+    init {
+        scope.launch { poll() }
+    }
+
+    private suspend fun poll() {
+        while (currentCoroutineContext().isActive) {
+            val current = hasInternetAccess()
+            if (_online.value != current) {
+                _online.value = current
+            }
+            delay(10_000L)
+        }
+    }
+
+    private fun hasInternetAccess(): Boolean {
+        val manager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager
+            ?: return false
+        val network = manager.activeNetwork ?: return false
+        val capabilities = manager.getNetworkCapabilities(network) ?: return false
+        return capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
+    }
+}

android-app/app/src/main/java/de/harheimertc/repositories/GalleryRepository.kt

@@ -24,27 +24,27 @@ class GalleryRepository @Inject constructor(
     @param:ApplicationContext private val context: Context,
 ) {
     suspend fun hasPublicImages(): Result<Boolean> = runCatching {
+        retryOnNetworkFailure {
             val response = api.galerieList(page = 1, perPage = 1)
             if (!response.isSuccessful) error("HTTP ${response.code()}")
             response.body()?.images.orEmpty().isNotEmpty()
         }
+    }
 
     suspend fun fetchImages(page: Int = 1, perPage: Int = 60): Result<GalleryPage> {
-        return try {
+        return runCatching {
+            retryOnNetworkFailure {
                 val resp = api.galerieList(page = page, perPage = perPage)
                 if (resp.isSuccessful) {
                     val body = resp.body()
-                Result.success(
                     GalleryPage(
                         images = body?.images.orEmpty().map { it.toGalleryImage() },
                         pagination = body?.pagination ?: GalleryPaginationDto(),
-                    ),
                     )
                 } else {
-                Result.failure(Exception("HTTP ${resp.code()}"))
+                    error("HTTP ${resp.code()}")
+                }
             }
-        } catch (e: Exception) {
-            Result.failure(e)
         }
     }
 

android-app/app/src/main/java/de/harheimertc/repositories/HomeRepository.kt

@@ -31,6 +31,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
         val diagnostics = mutableListOf<String>()
 
         val termine = runCatching {
+            retryOnNetworkFailure {
                 val response = api.termine()
                 if (!response.isSuccessful) {
                     val errorBody = response.errorBody()?.string().orEmpty()
@@ -44,6 +45,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
                     error("Termine konnten nicht geladen werden (HTTP ${response.code()}).")
                 }
                 response.body()?.termine.orEmpty()
+            }
         }.onFailure { error ->
             captureLoadIssue("fetchHomeData.termine", error)
             if (diagnostics.none { it.contains("GET /api/termine") }) {
@@ -58,6 +60,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
         }.getOrDefault(emptyList())
 
         val spielplanResponse = runCatching {
+            retryOnNetworkFailure {
                 val response = api.spielplan()
                 if (!response.isSuccessful) {
                     val errorBody = response.errorBody()?.string().orEmpty()
@@ -71,6 +74,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
                     error("Spielplan konnte nicht geladen werden (HTTP ${response.code()}).")
                 }
                 response.body()
+            }
         }.onFailure { error ->
             captureLoadIssue("fetchHomeData.spielplan", error)
             if (diagnostics.none { it.contains("GET /api/spielplan") }) {
@@ -86,6 +90,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
         val spiele = spielplanResponse?.data.orEmpty()
 
         val news = runCatching {
+            retryOnNetworkFailure {
                 val response = api.publicNews()
                 if (!response.isSuccessful) {
                     val errorBody = response.errorBody()?.string().orEmpty()
@@ -99,6 +104,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
                     error("News konnten nicht geladen werden (HTTP ${response.code()}).")
                 }
                 response.body()?.news.orEmpty()
+            }
         }.onFailure { error ->
             captureLoadIssue("fetchHomeData.news", error)
             if (diagnostics.none { it.contains("GET /api/news-public") }) {
@@ -113,6 +119,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
         }.getOrDefault(emptyList())
 
         val homepageSections = runCatching {
+            retryOnNetworkFailure {
                 val response = api.config()
                 if (!response.isSuccessful) {
                     val errorBody = response.errorBody()?.string().orEmpty()
@@ -126,6 +133,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
                     error("Konfiguration konnte nicht geladen werden (HTTP ${response.code()}).")
                 }
                 response.body()?.homepage?.sections.orEmpty()
+            }
         }.onFailure { error ->
             captureLoadIssue("fetchHomeData.config", error)
             if (diagnostics.none { it.contains("GET /api/config") }) {
@@ -140,6 +148,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
         }.getOrDefault(emptyList())
 
         val heroImageUrl = runCatching {
+            retryOnNetworkFailure {
                 val response = api.heroImages()
                 if (!response.isSuccessful) {
                     val errorBody = response.errorBody()?.string().orEmpty()
@@ -154,6 +163,7 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
                 }
                 val variants = response.body()?.variants.orEmpty()
                 pickRandomHeroImage(variants)
+            }
         }.onFailure { error ->
             captureLoadIssue("fetchHomeData.heroImages", error)
             if (diagnostics.none { it.contains("GET /api/hero-images") }) {
@@ -187,9 +197,11 @@ class HomeRepository @Inject constructor(private val api: ApiService) {
     }
 
     suspend fun fetchSpielplanForSeason(season: String): Result<SpielplanResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.spielplan(season)
             if (!response.isSuccessful) error("HTTP ${response.code()}")
             response.body() ?: error("Leere Antwort")
+        }
     }.onFailure { error ->
         Sentry.withScope { scope ->
             scope.setTag("repository", "HomeRepository")

android-app/app/src/main/java/de/harheimertc/repositories/LoginRepository.kt

@@ -23,7 +23,7 @@ class LoginRepository @Inject constructor(
     suspend fun login(email: String, password: String): Result<LoginResponse> = runCatching {
         val endpoint = "api/auth/login"
         val requestPreview = "{email=\"${maskEmail(email)}\", client=\"android\", deviceName=\"Harheimer TC Android-App\"}"
-        val response = api.login(LoginRequest(email.trim(), password))
+        val response = retryOnNetworkFailure { api.login(LoginRequest(email.trim(), password)) }
         if (!response.isSuccessful) {
             val body = response.errorBody()?.string().orEmpty()
             val serverMessage = extractServerMessage(body)
@@ -71,11 +71,11 @@ class LoginRepository @Inject constructor(
             return@runCatching AuthStatusResponse()
         }
 
-        var response = api.authStatus()
+        var response = retryOnNetworkFailure { api.authStatus() }
         if (!response.isSuccessful) error("Status konnte nicht geprüft werden.")
         var status = response.body() ?: AuthStatusResponse()
         if (!status.isLoggedIn && authRepository.getRefreshToken() != null && sessionRefresher.refreshAccessToken()) {
-            response = api.authStatus()
+            response = retryOnNetworkFailure { api.authStatus() }
             if (!response.isSuccessful) error("Status konnte nicht geprüft werden.")
             status = response.body() ?: AuthStatusResponse()
         }
@@ -93,16 +93,20 @@ class LoginRepository @Inject constructor(
     }
 
     suspend fun resetPassword(email: String): Result<AuthMessageResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.resetPassword(ResetPasswordRequest(email.trim()))
             if (!response.isSuccessful) error("Anfrage konnte nicht gesendet werden.")
             response.body() ?: error("Leere Antwort")
         }
+    }
 
     suspend fun register(request: RegistrationRequest): Result<AuthMessageResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.register(request)
             if (!response.isSuccessful) error("Registrierung fehlgeschlagen.")
             response.body() ?: error("Leere Antwort")
         }
+    }
 
     private fun extractServerMessage(raw: String): String? {
         if (raw.isBlank()) return null

android-app/app/src/main/java/de/harheimertc/repositories/MannschaftenRepository.kt

@@ -26,16 +26,20 @@ data class Mannschaft(
 @Singleton
 class MannschaftenRepository @Inject constructor(private val api: ApiService) {
     suspend fun fetchMannschaften(season: String? = null): Result<List<Mannschaft>> = runCatching {
+        retryOnNetworkFailure {
             val response = api.mannschaften(season)
             if (!response.isSuccessful) error("Mannschaften konnten nicht geladen werden.")
             parseCsv(response.body()?.string().orEmpty())
         }
+    }
 
     suspend fun fetchSeasons(): Result<MannschaftenSeasonsResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.mannschaftenSeasons()
             if (!response.isSuccessful) error("Saisons konnten nicht geladen werden.")
             response.body() ?: error("Saisons konnten nicht geladen werden.")
         }
+    }
 
     private fun parseCsv(csv: String): List<Mannschaft> = csv.lineSequence()
         .filter(String::isNotBlank)

android-app/app/src/main/java/de/harheimertc/repositories/NetworkRetry.kt

@@ -0,0 +1,33 @@
+package de.harheimertc.repositories
+
+import java.net.ConnectException
+import java.net.NoRouteToHostException
+import java.net.SocketTimeoutException
+import java.net.UnknownHostException
+import javax.net.ssl.SSLException
+import kotlinx.coroutines.CancellationException
+import kotlinx.coroutines.delay
+
+internal suspend fun <T> retryOnNetworkFailure(
+    retryDelayMillis: Long = 10_000L,
+    block: suspend () -> T,
+): T {
+    while (true) {
+        try {
+            return block()
+        } catch (error: Throwable) {
+            if (error is CancellationException) throw error
+            if (!error.isRetryableNetworkError()) throw error
+            delay(retryDelayMillis)
+        }
+    }
+}
+
+private fun Throwable.isRetryableNetworkError(): Boolean = when (this) {
+    is UnknownHostException,
+    is ConnectException,
+    is NoRouteToHostException,
+    is SocketTimeoutException,
+    is SSLException -> true
+    else -> false
+}

android-app/app/src/main/java/de/harheimertc/repositories/NewsletterRepository.kt

@@ -8,10 +8,12 @@ import javax.inject.Inject
 
 class NewsletterRepository @Inject constructor(private val api: ApiService) {
     suspend fun groups(): Result<NewsletterGroupsResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.publicNewsletterGroups()
             if (!response.isSuccessful) error("Newsletter konnten nicht geladen werden.")
             response.body() ?: error("Leere Antwort vom Server.")
         }
+    }
 
     suspend fun subscribe(groupId: String, email: String, name: String?): Result<AuthMessageResponse> = runCatching {
         val response = api.subscribeNewsletter(NewsletterSubscriptionRequest(groupId, email.trim(), name?.trim().orEmpty()))
@@ -26,8 +28,10 @@ class NewsletterRepository @Inject constructor(private val api: ApiService) {
     }
 
     suspend fun confirm(token: String): Result<AuthMessageResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.confirmNewsletter(token)
             if (!response.isSuccessful) error("Newsletter-Bestätigung fehlgeschlagen.")
             response.body() ?: AuthMessageResponse(success = true, message = "Newsletter-Anmeldung bestätigt.")
         }
     }
+}

android-app/app/src/main/java/de/harheimertc/repositories/PasskeyRepository.kt

@@ -28,6 +28,7 @@ class PasskeyRepository @Inject constructor(
     private val authRepository: AuthRepository,
 ) {
     suspend fun login(context: Context, email: String?): Result<LoginResponse> = runCatching {
+        retryOnNetworkFailure {
             val optionsResponse = api.passkeyAuthenticationOptions(
                 PasskeyAuthenticationOptionsRequest(email = email?.trim()?.takeIf(String::isNotBlank)),
             )
@@ -59,15 +60,19 @@ class PasskeyRepository @Inject constructor(
                 ?: error("Der Server hat kein Zugriffstoken geliefert.")
             authRepository.setSession(token, body.refreshToken, body.sessionId)
             body
+        }
     }.recoverCredentialCancellation("Passkey-Anmeldung abgebrochen.")
 
     suspend fun list(): Result<PasskeysResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.passkeys()
             if (!response.isSuccessful) error("Passkeys konnten nicht geladen werden.")
             response.body() ?: error("Leere Antwort")
         }
+    }
 
     suspend fun add(context: Context, name: String = "Android-App"): Result<AuthMessageResponse> = runCatching {
+        retryOnNetworkFailure {
             val optionsResponse = api.passkeyRegistrationOptions(PasskeyRegistrationOptionsRequest())
             if (!optionsResponse.isSuccessful) error("Passkey-Erstellung konnte nicht gestartet werden.")
             val optionsJson = optionsResponse.body()?.string()?.extractJsonObject("options")
@@ -90,6 +95,7 @@ class PasskeyRepository @Inject constructor(
             )
             if (!response.isSuccessful) error("Passkey konnte nicht hinzugefügt werden.")
             response.body() ?: error("Leere Antwort")
+        }
     }.recoverCredentialCancellation("Passkey-Erstellung abgebrochen.")
 
     suspend fun remove(credentialId: String): Result<AuthMessageResponse> = runCatching {

android-app/app/src/main/java/de/harheimertc/repositories/ProfileRepository.kt

@@ -9,14 +9,18 @@ import javax.inject.Singleton
 @Singleton
 class ProfileRepository @Inject constructor(private val api: ApiService) {
     suspend fun load(): Result<ProfileResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.profile()
             if (!response.isSuccessful) error("Profil konnte nicht geladen werden.")
             response.body() ?: error("Leere Antwort")
         }
+    }
 
     suspend fun save(request: ProfileUpdateRequest): Result<ProfileResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.updateProfile(request)
             if (!response.isSuccessful) error("Profil konnte nicht gespeichert werden.")
             response.body() ?: error("Leere Antwort")
         }
     }
+}

android-app/app/src/main/java/de/harheimertc/repositories/PublicPagesRepository.kt

@@ -31,12 +31,15 @@ data class MeisterschaftResult(
 @Singleton
 class PublicPagesRepository @Inject constructor(private val api: ApiService) {
     suspend fun fetchConfig(): Result<ConfigResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.config()
             if (!response.isSuccessful) error("Inhalte konnten nicht geladen werden.")
             response.body() ?: error("Leere Antwort")
         }
+    }
 
     suspend fun fetchSpielsysteme(): Result<List<Spielsystem>> = runCatching {
+        retryOnNetworkFailure {
             val response = api.spielsysteme()
             if (!response.isSuccessful) error("Spielsysteme konnten nicht geladen werden.")
             parseCsv(response.body()?.string().orEmpty()).drop(1).mapNotNull { values ->
@@ -52,8 +55,10 @@ class PublicPagesRepository @Inject constructor(private val api: ApiService) {
                 )
             }
         }
+    }
 
     suspend fun fetchVereinsmeisterschaften(): Result<List<MeisterschaftResult>> = runCatching {
+        retryOnNetworkFailure {
             val response = api.vereinsmeisterschaften()
             if (!response.isSuccessful) error("Vereinsmeisterschaften konnten nicht geladen werden.")
             parseCsv(response.body()?.string().orEmpty()).drop(1).mapNotNull { values ->
@@ -71,6 +76,7 @@ class PublicPagesRepository @Inject constructor(private val api: ApiService) {
             }
         }
     }
+}
 
 private fun parseCsv(csv: String): List<List<String>> =
     csv.lineSequence().filter(String::isNotBlank).map(::parseCsvLine).toList()

android-app/app/src/main/java/de/harheimertc/repositories/SpielplanRepository.kt

@@ -9,14 +9,17 @@ import javax.inject.Singleton
 @Singleton
 class SpielplanRepository @Inject constructor(private val api: ApiService) {
     suspend fun fetchSpielplan(season: String? = null): Result<SpielplanResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.spielplan(season)
             if (!response.isSuccessful) error("HTTP ${response.code()}")
             val body = response.body() ?: error("Leere Antwort")
             if (!body.success) error(body.message ?: "Spielplan konnte nicht geladen werden.")
             body
         }
+    }
 
     suspend fun fetchTeamTable(team: String, season: String? = null): Result<TeamTableResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.spielplanTable(team, season)
             if (!response.isSuccessful) error("HTTP ${response.code()}")
             val body = response.body() ?: error("Leere Antwort")
@@ -24,3 +27,4 @@ class SpielplanRepository @Inject constructor(private val api: ApiService) {
             body
         }
     }
+}

android-app/app/src/main/java/de/harheimertc/repositories/TermineRepository.kt

@@ -8,8 +8,10 @@ import javax.inject.Singleton
 @Singleton
 class TermineRepository @Inject constructor(private val api: ApiService) {
     suspend fun fetchTermine(): Result<List<TerminDto>> = runCatching {
+        retryOnNetworkFailure {
             val response = api.termine()
             if (!response.isSuccessful) error("HTTP ${response.code()}")
             response.body()?.termine.orEmpty()
         }
     }
+}

android-app/app/src/main/java/de/harheimertc/repositories/TrainingRepository.kt

@@ -8,8 +8,10 @@ import javax.inject.Singleton
 @Singleton
 class TrainingRepository @Inject constructor(private val api: ApiService) {
     suspend fun fetchConfig(): Result<ConfigResponse> = runCatching {
+        retryOnNetworkFailure {
             val response = api.config()
             if (!response.isSuccessful) error("Trainingsinformationen konnten nicht geladen werden.")
             response.body() ?: error("Leere Antwort")
         }
     }
+}

android-app/app/src/main/java/de/harheimertc/ui/navigation/NavGraph.kt

@@ -2,10 +2,16 @@ package de.harheimertc.ui.navigation
 
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
 import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.currentBackStackEntryAsState
@@ -35,6 +41,16 @@ fun NavGraph(
     BoxWithConstraints(modifier = Modifier.fillMaxSize()) {
         val persistentNavigation = maxWidth >= 600.dp
         Column(modifier = Modifier.fillMaxSize()) {
+            navigationState.connectionNote?.let { message ->
+                Surface(color = Color(0xFFFFF4E5), modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        text = message,
+                        color = Color(0xFF7C2D12),
+                        style = MaterialTheme.typography.labelMedium,
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 10.dp),
+                    )
+                }
+            }
             if (persistentNavigation) {
                 AppNavigationHeader(
                     selectedRoute = currentRoute,

android-app/app/src/main/java/de/harheimertc/ui/navigation/NavigationViewModel.kt

@@ -3,6 +3,7 @@ package de.harheimertc.ui.navigation
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import de.harheimertc.data.ConnectivityMonitor
 import de.harheimertc.repositories.AuthRepository
 import de.harheimertc.repositories.GalleryRepository
 import de.harheimertc.repositories.LoginRepository
@@ -19,6 +20,7 @@ data class NavigationUiState(
     val hasGalleryImages: Boolean = false,
     val loggedIn: Boolean = false,
     val roles: Set<String> = emptySet(),
+    val connectionNote: String? = null,
 ) {
     val isAdmin: Boolean get() = "admin" in roles
     val canAccessNewsletter: Boolean get() = roles.any { it in setOf("admin", "vorstand", "newsletter") }
@@ -32,12 +34,22 @@ class NavigationViewModel @Inject constructor(
     private val galleryRepository: GalleryRepository,
     private val loginRepository: LoginRepository,
     private val authRepository: AuthRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(NavigationUiState())
     val state: StateFlow<NavigationUiState> = _state
 
     init {
         loadNavigationData()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                _state.value = _state.value.copy(
+                    connectionNote = if (online) null else "Keine Verbindung. Die App versucht alle 10 Sekunden erneut zu laden.",
+                )
+                wasOnline = online
+            }
+        }
     }
 
     fun loadNavigationData() {
@@ -52,6 +64,7 @@ class NavigationViewModel @Inject constructor(
                 hasGalleryImages = gallery.await(),
                 loggedIn = hasStoredSession || status.isLoggedIn,
                 roles = (status.roles + status.user?.roles.orEmpty()).toSet(),
+                connectionNote = null,
             )
         }
     }
@@ -63,6 +76,7 @@ class NavigationViewModel @Inject constructor(
             _state.value = _state.value.copy(
                 loggedIn = hasStoredSession || status.isLoggedIn,
                 roles = (status.roles + status.user?.roles.orEmpty()).toSet(),
+                connectionNote = _state.value.connectionNote,
             )
         }
     }
@@ -73,6 +87,7 @@ class NavigationViewModel @Inject constructor(
             _state.value = _state.value.copy(
                 loggedIn = false,
                 roles = emptySet(),
+                connectionNote = _state.value.connectionNote,
             )
             onComplete()
         }

android-app/app/src/main/java/de/harheimertc/ui/screens/cms/CmsViewModels.kt

@@ -3,6 +3,7 @@ package de.harheimertc.ui.screens.cms
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import de.harheimertc.data.ConnectivityMonitor
 import de.harheimertc.data.CmsUserDto
 import de.harheimertc.data.ConfigResponse
 import de.harheimertc.data.ContactRequestDto
@@ -43,12 +44,22 @@ data class CmsUiState(
 @HiltViewModel
 class CmsViewModel @Inject constructor(
     private val repository: CmsRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(CmsUiState())
     val state: StateFlow<CmsUiState> = _state
 
     init {
         load()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                if (online && wasOnline == false) {
+                    load()
+                }
+                wasOnline = online
+            }
+        }
     }
 
     fun load() {

android-app/app/src/main/java/de/harheimertc/ui/screens/memberarea/MemberAreaDetailViewModels.kt

@@ -3,6 +3,7 @@ package de.harheimertc.ui.screens.memberarea
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import de.harheimertc.data.ConnectivityMonitor
 import de.harheimertc.data.AuthStatusResponse
 import de.harheimertc.data.MemberDto
 import de.harheimertc.data.NewsDto
@@ -24,12 +25,22 @@ data class MembersUiState(
 @HiltViewModel
 class MembersViewModel @Inject constructor(
     private val repository: MemberAreaRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(MembersUiState())
     val state: StateFlow<MembersUiState> = _state
 
     init {
         load()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                if (online && wasOnline == false) {
+                    load()
+                }
+                wasOnline = online
+            }
+        }
     }
 
     fun updateQuery(query: String) {
@@ -87,12 +98,22 @@ data class MemberNewsUiState(
 @HiltViewModel
 class MemberNewsViewModel @Inject constructor(
     private val repository: MemberAreaRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(MemberNewsUiState())
     val state: StateFlow<MemberNewsUiState> = _state
 
     init {
         load()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                if (online && wasOnline == false) {
+                    load()
+                }
+                wasOnline = online
+            }
+        }
     }
 
     fun load() {
@@ -118,12 +139,22 @@ data class QttrUiState(
 class QttrViewModel @Inject constructor(
     private val repository: MemberAreaRepository,
     private val loginRepository: LoginRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(QttrUiState())
     val state: StateFlow<QttrUiState> = _state
 
     init {
         load()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                if (online && wasOnline == false) {
+                    load()
+                }
+                wasOnline = online
+            }
+        }
     }
 
     fun load() {

android-app/app/src/main/java/de/harheimertc/ui/screens/memberarea/MemberAreaViewModel.kt

@@ -3,6 +3,7 @@ package de.harheimertc.ui.screens.memberarea
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import de.harheimertc.data.ConnectivityMonitor
 import de.harheimertc.data.BirthdayDto
 import de.harheimertc.repositories.MemberAreaRepository
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -19,12 +20,22 @@ data class MemberAreaUiState(
 @HiltViewModel
 class MemberAreaViewModel @Inject constructor(
     private val repository: MemberAreaRepository,
+    private val connectivityMonitor: ConnectivityMonitor,
 ) : ViewModel() {
     private val _state = MutableStateFlow(MemberAreaUiState())
     val state: StateFlow<MemberAreaUiState> = _state
 
     init {
         loadBirthdays()
+        viewModelScope.launch {
+            var wasOnline: Boolean? = null
+            connectivityMonitor.online.collect { online ->
+                if (online && wasOnline == false) {
+                    loadBirthdays()
+                }
+                wasOnline = online
+            }
+        }
     }
 
     fun loadBirthdays() {

android-app/gradle.properties

@@ -8,8 +8,8 @@ LOCAL_API_BASE_URL=https://harheimertc.tsschulz.de/
 PRODUCTION_API_BASE_URL=https://harheimertc.de/
 
 # Android app versioning for Play Store uploads
-ANDROID_VERSION_CODE=20
-ANDROID_VERSION_NAME=0.9.15
+ANDROID_VERSION_CODE=21
+ANDROID_VERSION_NAME=0.9.16
 
 # Temporary hotfix: disable R8 minification for release to avoid Retrofit generic signature stripping.
 RELEASE_MINIFY_ENABLED=false