Updated on 2026-08-14

app/src/main/java/com/tangem/tap/features/wallet/redux/WalletState.kt

@@ -1,6 +1,7 @@
 package com.tangem.tap.features.wallet.redux
 
 import android.graphics.Bitmap
+import com.tangem.blockchain.common.AmountType
 import com.tangem.blockchain.common.Blockchain
 import com.tangem.blockchain.common.WalletManager
 import com.tangem.domain.common.util.cardTypesResolver
@@ -16,6 +17,7 @@ import com.tangem.tap.features.onboarding.products.twins.redux.TwinCardsState
 import com.tangem.tap.features.wallet.models.Currency
 import com.tangem.tap.store
 import org.rekotlin.StateType
+import java.math.BigDecimal
 import kotlin.properties.ReadOnlyProperty
 
 data class WalletState(
@@ -103,6 +105,9 @@ data class WalletState(
                 it.derivationPath?.rawPath == currency.derivationPath
         }
     }
+
+    fun getBlockchainAmount(currency: Currency): BigDecimal =
+        getWalletManager(currency)?.wallet?.amounts?.get(AmountType.Coin)?.value ?: BigDecimal.ZERO
 }
 
 enum class ProgressState : WidgetState { Loading, Refreshing, Done, Error }
@@ -114,7 +119,6 @@ enum class ErrorType {
 
 sealed class WalletMainButton(enabled: Boolean) : Button(enabled) {
     class SendButton(enabled: Boolean) : WalletMainButton(enabled)
-    class CreateWalletButton(enabled: Boolean) : WalletMainButton(enabled)
 }
 
 data class Artwork(

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

@@ -55,6 +55,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import timber.log.Timber
+import java.math.BigDecimal
 import javax.inject.Inject
 
 /**
@@ -128,7 +129,8 @@ class WalletDetailsFragment :
         (WalletState::selectedWalletData or WalletState::isExchangeServiceFeatureOn) { state ->
             val selectedWallet = state.selectedWalletData
             if (selectedWallet != null) {
-                setupButtonsRow(selectedWallet, state.isExchangeServiceFeatureOn)
+                val blockchainAmount: BigDecimal = state.getBlockchainAmount(selectedWallet.currency)
+                setupButtonsRow(selectedWallet, state.isExchangeServiceFeatureOn, blockchainAmount)
             }
         }
         (WalletState::state or WalletState::error) { state ->
@@ -281,7 +283,11 @@ class WalletDetailsFragment :
         }
     }
 
-    private fun setupButtonsRow(selectedWallet: WalletDataModel, isExchangeServiceFeatureOn: Boolean) {
+    private fun setupButtonsRow(
+        selectedWallet: WalletDataModel,
+        isExchangeServiceFeatureOn: Boolean,
+        blockchainAmount: BigDecimal,
+    ) {
         val exchangeManager = store.state.globalState.exchangeManager
         binding.rowButtons.apply {
             onBuyClick = { store.dispatch(WalletAction.TradeCryptoAction.Buy()) }
@@ -310,7 +316,7 @@ class WalletDetailsFragment :
         binding.rowButtons.updateButtonsVisibility(
             actions = actions,
             exchangeServiceFeatureOn = isExchangeServiceFeatureOn,
-            sendAllowed = selectedWallet.mainButton.enabled,
+            sendAllowed = selectedWallet.mainButton(blockchainAmount).enabled,
         )
     }
 

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

@@ -18,10 +18,9 @@ import com.tangem.tap.features.wallet.redux.utils.UNKNOWN_AMOUNT_SIGN
 import com.tangem.tap.network.exchangeServices.CurrencyExchangeManager
 import java.math.BigDecimal
 
-internal val WalletDataModel.mainButton: WalletMainButton
-    get() = WalletMainButton.SendButton(
-        enabled = !status.amount.isZero() && status.pendingTransactions.isEmpty(),
-    )
+internal fun WalletDataModel.mainButton(blockchainAmount: BigDecimal): WalletMainButton = WalletMainButton.SendButton(
+    enabled = !isEmptyAmount && status.pendingTransactions.isEmpty() && !blockchainAmount.isZero(),
+)
 
 internal fun WalletDataModel.getFormattedAmount(): String {
     return status.amount.toFormattedCurrencyString(

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

@@ -12,7 +12,6 @@ import com.tangem.tap.features.wallet.models.Currency
 import com.tangem.tap.features.wallet.models.PendingTransaction
 import com.tangem.tap.features.wallet.models.PendingTransactionType
 import com.tangem.tap.features.wallet.redux.WalletAction
-import com.tangem.tap.features.wallet.redux.WalletMainButton
 import com.tangem.tap.features.wallet.redux.WalletState
 import com.tangem.tap.features.wallet.ui.BalanceWidget
 import com.tangem.tap.features.wallet.ui.MultipleAddressUiHelper
@@ -175,15 +174,10 @@ class SingleWalletView : WalletView() {
         binding?.rowButtons?.updateButtonsVisibility(
             actions = actions,
             exchangeServiceFeatureOn = isExchangeServiceFeatureEnabled,
-            sendAllowed = walletData.mainButton.enabled,
+            sendAllowed = walletData.mainButton(walletData.status.amount).enabled,
         )
 
-        rowButtons.onSendClick = {
-            when (walletData.mainButton) {
-                is WalletMainButton.SendButton -> store.dispatch(WalletAction.Send())
-                is WalletMainButton.CreateWalletButton -> store.dispatch(WalletAction.CreateWallet)
-            }
-        }
+        rowButtons.onSendClick = { store.dispatch(WalletAction.Send()) }
     }
 
     private fun setupAddressCard(state: WalletState, binding: FragmentWalletBinding) = with(binding.lAddress) {