Updated on 2026-08-14

app/src/main/java/com/tangem/tap/features/wallet/ui/WalletFragment.kt

@@ -7,8 +7,12 @@ import android.view.MenuItem
 import android.view.View
 import androidx.activity.OnBackPressedCallback
 import androidx.appcompat.app.AppCompatActivity
+import androidx.compose.runtime.mutableStateOf
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.flowWithLifecycle
+import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.transition.TransitionInflater
@@ -19,6 +23,7 @@ import com.badoo.mvicore.modelWatcher
 import com.tangem.core.analytics.Analytics
 import com.tangem.core.ui.fragments.setStatusBarColor
 import com.tangem.core.ui.utils.OneTouchClickListener
+import com.tangem.datasource.connection.NetworkConnectionManager
 import com.tangem.feature.swap.api.SwapFeatureToggleManager
 import com.tangem.feature.swap.domain.SwapInteractor
 import com.tangem.tap.MainActivity
@@ -47,6 +52,8 @@ import com.tangem.wallet.BuildConfig
 import com.tangem.wallet.R
 import com.tangem.wallet.databinding.FragmentWalletBinding
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.launch
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -58,6 +65,9 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
     @Inject
     lateinit var swapFeatureToggleManager: SwapFeatureToggleManager
 
+    @Inject
+    lateinit var networkConnectionManager: NetworkConnectionManager
+
     private lateinit var warningsAdapter: WarningMessagesAdapter
 
     private val binding: FragmentWalletBinding by viewBinding(FragmentWalletBinding::bind)
@@ -75,6 +85,8 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
         }
     }
 
+    private val isNetworkConnectionError = mutableStateOf(false)
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setHasOptionsMenu(true)
@@ -98,6 +110,8 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
 
         setStatusBarColor(R.color.background_secondary)
 
+        subscribeOnNetworkStateChanging()
+
         store.subscribe(this) { state ->
             state.select { it.walletState }
         }
@@ -194,8 +208,7 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
             if (state.state != ProgressState.Loading &&
                 state.state != ProgressState.Refreshing
             ) {
-                Analytics.send(Portfolio.Refreshed())
-                store.dispatch(WalletAction.LoadData.Refresh)
+                refreshWalletData()
             }
         }
 
@@ -207,6 +220,11 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
         binding.toolbar.setNavigationIcon(navigationIconRes)
     }
 
+    private fun refreshWalletData() {
+        Analytics.send(Portfolio.Refreshed())
+        store.dispatch(WalletAction.LoadData.Refresh)
+    }
+
     private fun showWarningsIfPresent(warnings: List<WarningMessage>) {
         warningsAdapter.submitList(warnings)
         binding.rvWarningMessages.show(warnings.isNotEmpty())
@@ -215,13 +233,17 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
     private fun setupNoInternetHandling(state: WalletState) {
         if (state.state == ProgressState.Error) {
             if (state.error == ErrorType.NoInternetConnection) {
+                isNetworkConnectionError.value = true
                 binding.srlWallet.isRefreshing = false
                 (activity as? MainActivity)?.showSnackbar(
                     text = R.string.wallet_notification_no_internet,
                     buttonTitle = R.string.common_retry,
                 ) { store.dispatch(WalletAction.LoadData) }
+            } else {
+                isNetworkConnectionError.value = false
             }
         } else {
+            isNetworkConnectionError.value = false
             (activity as? MainActivity)?.dismissSnackbar()
         }
     }
@@ -247,6 +269,19 @@ class WalletFragment : Fragment(R.layout.fragment_wallet), SafeStoreSubscriber<W
         }
     }
 
+    private fun subscribeOnNetworkStateChanging() {
+        viewLifecycleOwner.lifecycleScope.launch {
+            networkConnectionManager.isOnlineFlow
+                .flowWithLifecycle(viewLifecycleOwner.lifecycle, Lifecycle.State.STARTED)
+                .distinctUntilChanged()
+                .collect { isOnline ->
+                    if (isOnline && isNetworkConnectionError.value) {
+                        refreshWalletData()
+                    }
+                }
+        }
+    }
+
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         return when (item.itemId) {
             R.id.details_menu -> {

app/src/main/java/com/tangem/tap/features/wallet/ui/WalletViewModel.kt

@@ -80,14 +80,6 @@ internal class WalletViewModel @Inject constructor(
         analyticsEventHandler.send(MainScreen.ScreenOpened())
     }
 
-    private fun launch() {
-        val manager = store.state.globalState.userWalletsListManager
-        if (manager != null) {
-            bootstrapSelectedWalletStoresChanges(manager)
-        }
-        bootstrapShowSaveWalletIfNeeded()
-    }
-
     fun onBalanceLoaded(totalBalance: TotalFiatBalance?) {
         if (totalBalance != null) {
             walletAnalyticsEventsMapper.convert(totalBalance)?.let { balanceParam ->
@@ -100,6 +92,14 @@ internal class WalletViewModel @Inject constructor(
         }
     }
 
+    private fun launch() {
+        val manager = store.state.globalState.userWalletsListManager
+        if (manager != null) {
+            bootstrapSelectedWalletStoresChanges(manager)
+        }
+        bootstrapShowSaveWalletIfNeeded()
+    }
+
     @OptIn(FlowPreview::class)
     private fun bootstrapSelectedWalletStoresChanges(manager: UserWalletsListManager) {
         observeWalletStoresUpdatesJob = manager.selectedUserWallet

core/datasource/src/main/java/com/tangem/datasource/connection/AndroidNetworkConnectionManager.kt

@@ -15,6 +15,7 @@ import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 import timber.log.Timber
 import javax.inject.Inject
@@ -35,12 +36,13 @@ internal class AndroidNetworkConnectionManager @Inject constructor(
     private val dispatchers: CoroutineDispatcherProvider,
 ) : NetworkConnectionManager {
 
-    override val isOnline: Boolean get() = _isOnline.value
-
     private val _isOnline = MutableStateFlow(value = false)
     private val callbacks = NetworkConnectionManagerCallbacks()
     private val receiver = NetworkConnectionBroadcastReceiver()
 
+    override val isOnline: Boolean get() = _isOnline.value
+    override val isOnlineFlow: StateFlow<Boolean> = _isOnline
+
     init {
         (context as? Application)?.registerActivityLifecycleCallbacks(callbacks)
     }

core/datasource/src/main/java/com/tangem/datasource/connection/NetworkConnectionManager.kt

@@ -1,8 +1,13 @@
 package com.tangem.datasource.connection
 
+import kotlinx.coroutines.flow.StateFlow
+
 /** Network connection manager */
 interface NetworkConnectionManager {
 
     /** Connection status */
     val isOnline: Boolean
+
+    /** Connection status flow */
+    val isOnlineFlow: StateFlow<Boolean>
 }