Updated on 2026-08-14

app/src/main/java/com/tangem/tap/common/extensions/Token.kt

@@ -5,19 +5,23 @@ import androidx.annotation.ColorInt
 import androidx.core.graphics.luminance
 import androidx.core.graphics.toColorInt
 import com.tangem.blockchain.common.Token
-import com.tangem.wallet.R
 
 @ColorInt
-fun Token.getColor(): Int {
+fun Token.getColor(isTestnet: Boolean = false): Int {
-    return try {
+    val defaultColor = "#C7C7CC".toColorInt() // equivalent to R.color.lightGray4
-        ("#" + this.contractAddress.subSequence(2..7).toString())
+
-            .toColorInt()
+    return if (isTestnet)
+        defaultColor
+    else try {
+        ("#" + this.contractAddress.subSequence(2..7).toString()).toColorInt()
     } catch (exception: Exception) {
-        R.color.lightGray4
+        defaultColor
     }
 }
 
 @ColorInt
-fun Token.getTextColor(): Int {
+fun Token.getTextColor(isTestnet: Boolean = false): Int = when {
-    return if (this.getColor().luminance > 0.5) Color.BLACK else Color.WHITE
+    isTestnet -> Color.WHITE
+    this.getColor().luminance > 0.5 -> Color.BLACK
+    else -> Color.WHITE
 }

app/src/main/java/com/tangem/tap/features/send/redux/SendScreenAction.kt

@@ -113,15 +113,11 @@ sealed class FeeActionUi : SendScreenActionUi {
 }
 
 sealed class FeeAction : SendScreenAction {
-    enum class Error {
-        ADDRESS_OR_AMOUNT_IS_EMPTY,
-        REQUEST_FAILED
-    }
 
     object RequestFee : FeeAction()
     sealed class FeeCalculation : FeeAction() {
         data class SetFeeResult(val fee: List<Amount>) : FeeCalculation()
-        data class SetFeeError(val error: Error) : FeeCalculation()
+        object ClearResult : FeeCalculation()
     }
 
     data class ChangeLayoutVisibility(
@@ -160,6 +156,12 @@ sealed class SendAction : SendScreenAction {
             data class CardSdkError(val error: TangemSdkError): Dialog()
             data class BlockchainSdkError(val error: com.tangem.blockchain.common.BlockchainSdkError): Dialog()
         }
+
+        data class RequestFeeError(
+            val error: com.tangem.blockchain.common.BlockchainSdkError,
+            val onRetry: () -> Unit,
+        ) : Dialog()
+
         object Hide : Dialog()
     }
 

app/src/main/java/com/tangem/tap/features/send/redux/middlewares/RequestFeeMiddleware.kt

@@ -2,6 +2,7 @@ package com.tangem.tap.features.send.redux.middlewares
 
 import com.tangem.blockchain.common.Amount
 import com.tangem.blockchain.common.Blockchain
+import com.tangem.blockchain.common.BlockchainSdkError
 import com.tangem.blockchain.common.TransactionSender
 import com.tangem.blockchain.extensions.Result
 import com.tangem.common.extensions.isZero
@@ -31,8 +32,7 @@ class RequestFeeMiddleware {
         val scanResponse = appState.globalState.scanResponse ?: return
 
         if (!SendState.isReadyToRequestFee()) {
-            dispatch(FeeAction.FeeCalculation.SetFeeError(FeeAction.Error.ADDRESS_OR_AMOUNT_IS_EMPTY))
+            dispatch(FeeAction.FeeCalculation.ClearResult)
-//            dispatch(FeeAction.ChangeLayoutVisibility(main = false, chipGroup = true))
             dispatch(ReceiptAction.RefreshReceipt)
             dispatch(SendAction.ChangeSendButtonState(sendState.getButtonState()))
             return
@@ -66,14 +66,21 @@ class RequestFeeMiddleware {
                         }
                     }
                     is Result.Failure -> {
-                        dispatch(FeeAction.FeeCalculation.SetFeeError(FeeAction.Error.REQUEST_FAILED))
+                        dispatch(FeeAction.FeeCalculation.ClearResult)
                         dispatch(FeeAction.ChangeLayoutVisibility(main = false))
+
+                        val blockchainSdkError = feeResult.error as? BlockchainSdkError ?: return@withContext
+                        dispatch(
+                            SendAction.Dialog.RequestFeeError(
+                                error = blockchainSdkError,
+                                onRetry = { dispatch(FeeAction.RequestFee) },
+                            ),
+                        )
                     }
                 }
                 dispatch(AmountActionUi.CheckAmountToSend)
             }
         }
-
     }
 }
 
@@ -93,13 +100,13 @@ class FeeMock {
         suspend fun feeStandard(blockchain: Blockchain): List<Amount> = listOf(
             Amount(0.001500.toBigDecimal(), blockchain),
             Amount(0.0030.toBigDecimal(), blockchain),
-            Amount(0.0045001.toBigDecimal(), blockchain)
+            Amount(0.0045001.toBigDecimal(), blockchain),
         )
 
         suspend fun feeStandardBig(blockchain: Blockchain): List<Amount> = listOf(
             Amount(1.76.toBigDecimal(), blockchain),
             Amount(2.30.toBigDecimal(), blockchain),
-            Amount(3.45.toBigDecimal(), blockchain)
+            Amount(3.45.toBigDecimal(), blockchain),
         )
 
         suspend fun feeSingle(blockchain: Blockchain): List<Amount> = listOf(Amount(0.0015.toBigDecimal(), blockchain))

app/src/main/java/com/tangem/tap/features/send/redux/reducers/FeeReducer.kt

@@ -36,7 +36,7 @@ class FeeReducer : SendInternalReducer {
     private fun handleAction(action: FeeAction, sendState: SendState, state: FeeState): SendState {
         val result = when (action) {
             is FeeAction.RequestFee -> {
-                state.copy(error = null)
+                state
             }
             is FeeAction.ChangeLayoutVisibility -> {
                 fun getVisibility(current: Boolean, proposed: Boolean?): Boolean = proposed ?: current
@@ -56,7 +56,6 @@ class FeeReducer : SendInternalReducer {
                         selectedFeeType = feeType,
                         feeList = fees,
                         currentFee = currentFee,
-                        error = null,
                         feeIsApproximate = isFeeApproximate(sendState),
                     )
                 } else {
@@ -67,16 +66,14 @@ class FeeReducer : SendInternalReducer {
                         selectedFeeType = feeType,
                         feeList = fees,
                         currentFee = currentFee,
-                        error = null,
                         feeIsApproximate = isFeeApproximate(sendState),
                     )
                 }
             }
-            is FeeAction.FeeCalculation.SetFeeError -> {
+            FeeAction.FeeCalculation.ClearResult -> {
                 state.copy(
                     feeList = null,
                     currentFee = null,
-                    error = action.error,
                 )
             }
         }

app/src/main/java/com/tangem/tap/features/send/redux/reducers/SendScreenReducer.kt

@@ -59,10 +59,10 @@ private class SendReducer : SendInternalReducer {
             is SendAction.Dialog.TezosWarningDialog -> sendState.copy(dialog = action)
             is SendAction.Dialog.SendTransactionFails.CardSdkError -> sendState.copy(dialog = action)
             is SendAction.Dialog.SendTransactionFails.BlockchainSdkError -> sendState.copy(dialog = action)
+            is SendAction.Dialog.RequestFeeError -> sendState.copy(dialog = action)
             is SendAction.Dialog.Hide -> sendState.copy(dialog = null)
             is SendAction.Warnings.Set -> sendState.copy(sendWarningsList = action.warningList)
-            is SendAction.SendSpecificTransaction ->
+            is SendAction.SendSpecificTransaction -> handleSendSpecificTransactionAction(action, sendState)
-                handleSendSpecificTransactionAction(action, sendState)
             else -> return sendState
         }
 

app/src/main/java/com/tangem/tap/features/send/redux/states/FeeState.kt

@@ -1,7 +1,6 @@
 package com.tangem.tap.features.send.redux.states
 
 import com.tangem.blockchain.common.Amount
-import com.tangem.tap.features.send.redux.FeeAction
 import java.math.BigDecimal
 
 /**
@@ -21,12 +20,11 @@ data class FeeState(
     val controlsLayoutIsVisible: Boolean = false,
     val feeChipGroupIsVisible: Boolean = true,
     val includeFeeSwitcherIsEnabled: Boolean = true,
-    val error: FeeAction.Error? = null,
 ) : SendScreenState {
 
     override val stateId: StateId = StateId.FEE
 
-    fun isReady(): Boolean = error == null && currentFee != null
+    fun isReady(): Boolean = currentFee != null
 
     fun getCurrentFeeValue(): BigDecimal = currentFee?.value ?: BigDecimal.ZERO
 }

app/src/main/java/com/tangem/tap/features/send/ui/dialogs/RequestFeeErrorDialog.kt

@@ -0,0 +1,32 @@
+package com.tangem.tap.features.send.ui.dialogs
+
+import android.content.Context
+import androidx.appcompat.app.AlertDialog
+import com.tangem.tap.common.feedback.SendTransactionFailedEmail
+import com.tangem.tap.common.redux.global.GlobalAction
+import com.tangem.tap.features.send.redux.SendAction
+import com.tangem.tap.store
+import com.tangem.wallet.R
+
+/**
+[REDACTED_AUTHOR]
+ */
+class RequestFeeErrorDialog {
+
+    companion object {
+        fun create(context: Context, dialog: SendAction.Dialog.RequestFeeError): AlertDialog {
+            val errorMessage = dialog.error.customMessage
+
+            return AlertDialog.Builder(context).apply {
+                setTitle(R.string.send_error_fee_request_failed)
+                setMessage(context.getString(R.string.alert_failed_to_send_transaction_message, errorMessage))
+                setNegativeButton(R.string.alert_button_send_feedback) { _, _ ->
+                    store.dispatch(GlobalAction.SendEmail(SendTransactionFailedEmail(errorMessage)))
+                }
+                setPositiveButton(R.string.common_retry) { _, _ -> dialog.onRetry() }
+                setNeutralButton(R.string.common_cancel) { _, _ -> }
+                setOnDismissListener { store.dispatch(SendAction.Dialog.Hide) }
+            }.create()
+        }
+    }
+}

app/src/main/java/com/tangem/tap/features/send/ui/stateSubscribers/SendStateSubscriber.kt

@@ -20,7 +20,6 @@ import com.tangem.tap.domain.MultiMessageError
 import com.tangem.tap.domain.assembleErrors
 import com.tangem.tap.features.BaseStoreFragment
 import com.tangem.tap.features.send.redux.AddressPayIdVerifyAction.Error
-import com.tangem.tap.features.send.redux.FeeAction
 import com.tangem.tap.features.send.redux.SendAction
 import com.tangem.tap.features.send.redux.states.AddressPayIdState
 import com.tangem.tap.features.send.redux.states.AmountState
@@ -35,12 +34,12 @@ import com.tangem.tap.features.send.redux.states.TransactionExtrasState
 import com.tangem.tap.features.send.redux.states.XlmMemoType
 import com.tangem.tap.features.send.ui.FeeUiHelper
 import com.tangem.tap.features.send.ui.SendFragment
+import com.tangem.tap.features.send.ui.dialogs.RequestFeeErrorDialog
 import com.tangem.tap.features.send.ui.dialogs.SendTransactionFailsDialog
 import com.tangem.tap.features.send.ui.dialogs.TezosWarningDialog
 import com.tangem.tap.features.wallet.redux.WalletState.Companion.ROUGH_SIGN
 import com.tangem.tap.features.wallet.redux.WalletState.Companion.UNKNOWN_AMOUNT_SIGN
 import com.tangem.tap.features.wallet.ui.adapters.WarningMessagesAdapter
-import com.tangem.tap.store
 import com.tangem.wallet.R
 
 /**
@@ -62,10 +61,7 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
             when (it) {
                 StateId.SEND_SCREEN -> handleSendScreen(fg, state)
                 StateId.ADDRESS_PAY_ID -> handleAddressPayIdState(fg, state.addressPayIdState)
-                StateId.TRANSACTION_EXTRAS -> handleTransactionExtrasState(
+                StateId.TRANSACTION_EXTRAS -> handleTransactionExtrasState(fg, state.transactionExtrasState)
-                    fg,
-                    state.transactionExtrasState
-                )
                 StateId.AMOUNT -> handleAmountState(fg, state.amountState)
                 StateId.FEE -> handleFeeState(fg, state.feeState)
                 StateId.RECEIPT -> handleReceiptState(fg, state.receiptState)
@@ -144,6 +140,12 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
                     dialog?.show()
                 }
             }
+            is SendAction.Dialog.RequestFeeError -> {
+                if (dialog == null) {
+                    dialog = RequestFeeErrorDialog.create(fg.requireContext(), state.dialog)
+                    dialog?.show()
+                }
+            }
             else -> {
                 dialog?.dismiss()
                 dialog = null
@@ -161,7 +163,7 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
 
         toolbar.title = fg.getString(
             R.string.send_title_currency_format,
-            state.amountState.mainCurrency.currencySymbol
+            state.amountState.mainCurrency.currencySymbol,
         )
     }
 
@@ -233,11 +235,11 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
         val balanceText = when (state.mainCurrency.type) {
             MainCurrencyType.FIAT -> fg.getString(
                 R.string.send_balance_subtitle_format,
-                state.viewBalanceValue, state.mainCurrency.currencySymbol
+                state.viewBalanceValue, state.mainCurrency.currencySymbol,
             ).remove(":")
             MainCurrencyType.CRYPTO -> fg.getString(
                 R.string.send_balance_subtitle_format,
-                state.mainCurrency.currencySymbol, state.viewBalanceValue
+                state.mainCurrency.currencySymbol, state.viewBalanceValue,
             )
         }
 
@@ -263,14 +265,6 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
             swIncludeFee.isChecked = state.feeIsIncluded
         }
 
-        if (state.error == FeeAction.Error.REQUEST_FAILED) {
-            fg.showRetrySnackbar(
-                fg.requireContext().getString(R.string.send_error_fee_request_failed)
-            ) {
-                store.dispatch(FeeAction.RequestFee)
-            }
-        }
-
         val chipId = FeeUiHelper.toId(state.selectedFeeType)
         if (chipGroup.checkedChipId != chipId && chipId != View.NO_ID) chipGroup.check(chipId)
     }
@@ -299,7 +293,7 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
 
                 val willSent = getString(
                     R.string.send_total_subtitle_format,
-                    receipt.willSentCrypto, receipt.symbols.crypto
+                    receipt.willSentCrypto, receipt.symbols.crypto,
                 )
                 llTotalContainer.tvWillBeSentValue.update(willSent)
 
@@ -334,7 +328,7 @@ class SendStateSubscriber(fragment: BaseStoreFragment) :
                 val willSent = getString(
                     R.string.send_total_subtitle_asset_format,
                     receipt.symbols.token ?: "", receipt.willSentToken,
-                    receipt.symbols.crypto, receipt.willSentFeeCoin
+                    receipt.symbols.crypto, receipt.willSentFeeCoin,
                 )
                 llTotalContainer.tvWillBeSentValue.update(willSent)
             }

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

@@ -41,6 +41,7 @@ import com.tangem.tap.features.wallet.redux.WalletState
 import com.tangem.tap.features.wallet.redux.WalletState.Companion.UNKNOWN_AMOUNT_SIGN
 import com.tangem.tap.features.wallet.ui.adapters.PendingTransactionsAdapter
 import com.tangem.tap.features.wallet.ui.adapters.WalletDetailWarningMessagesAdapter
+import com.tangem.tap.features.wallet.ui.images.load
 import com.tangem.tap.features.wallet.ui.test.TestWalletDetails
 import com.tangem.tap.store
 import com.tangem.wallet.R

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

@@ -15,6 +15,7 @@ import com.tangem.tap.common.extensions.show
 import com.tangem.tap.features.wallet.redux.WalletAction
 import com.tangem.tap.features.wallet.redux.WalletData
 import com.tangem.tap.features.wallet.ui.BalanceStatus
+import com.tangem.tap.features.wallet.ui.images.load
 import com.tangem.tap.store
 import com.tangem.wallet.R
 import com.tangem.wallet.databinding.ItemCurrencyWalletBinding
@@ -62,7 +63,7 @@ class WalletAdapter
         fun bind(wallet: WalletData) = with(binding) {
             val status = wallet.currencyData.status
             // Skip changes when on refreshing status
-            if (status == BalanceStatus.Refreshing || wallet.fiatRateString == null) return@with
+            if (status == BalanceStatus.Refreshing) return@with
 
             val statusMessage = when (status) {
                 BalanceStatus.TransactionInProgress -> {

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

@@ -21,7 +21,7 @@ private const val VOYR = "VOYRME"
 
 class CurrencyIconRequest(
     private val currencyImageView: ImageFilterView,
-    private val currencyTextView: TextView,
+    private val currencyTextView: TextView?,
     private val token: Token?,
     private val blockchain: Blockchain,
 ) {
@@ -38,7 +38,7 @@ class CurrencyIconRequest(
         loadBlockchainIconBase(
             onStart = {
                 currencyImageView.colorFilter = null
-            }
+            },
         )
     }
 
@@ -46,7 +46,7 @@ class CurrencyIconRequest(
         loadBlockchainIconBase(
             onStart = {
                 currencyImageView.saturation = 0f
-            }
+            },
         )
     }
 
@@ -57,7 +57,11 @@ class CurrencyIconRequest(
             },
             onSuccess = {
                 currencyImageView.colorFilter = null
-            }
+            },
+            onError = {
+                currencyImageView.setColorFilter(it.getColor())
+                currencyTextView?.setTextColor(it.getTextColor())
+            },
         )
     }
 
@@ -65,7 +69,12 @@ class CurrencyIconRequest(
         loadTokenIconBase(
             onStart = {
                 currencyImageView.saturation = 0f
-            }
+            },
+            onError = {
+                currencyImageView.saturation = 0f
+                currencyImageView.setColorFilter(it.getColor(true))
+                currencyTextView?.setTextColor(it.getTextColor(true))
+            },
         )
     }
 
@@ -94,15 +103,19 @@ class CurrencyIconRequest(
             data = getTokenIcon(token, blockchain),
             placeholderRes = R.drawable.shape_circle,
             onStart = {
-                currencyTextView.text = token.symbol.take(1)
+                currencyTextView?.text = token.name.take(1)
-                currencyTextView.setTextColor(token.getTextColor())
+                currencyTextView?.setTextColor(token.getTextColor())
                 onStart(token)
             },
             onSuccess = {
-                currencyTextView.text = null
+                currencyTextView?.text = null
                 onSuccess(token)
             },
-            onError = { onError(token) },
+            onError = {
+                // for some reason the onStart doesn't call if an error occurs
+                currencyTextView?.text = token.name.take(1)
+                onError(token)
+            },
         )
     }
 }
@@ -122,7 +135,7 @@ private inline fun ImageView.loadIcon(
         .listener(
             onStart = { onStart() },
             onSuccess = { _, _ -> onSuccess() },
-            onError = { _, _ -> onError() }
+            onError = { _, _ -> onError() },
         )
         .target(imageView = this)
         .build()

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

@@ -4,13 +4,11 @@ import android.content.Context
 import android.util.AttributeSet
 import android.view.LayoutInflater
 import android.widget.TextView
-import androidx.annotation.DrawableRes
 import androidx.constraintlayout.utils.widget.ImageFilterView
 import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.view.isVisible
 import com.tangem.blockchain.common.DerivationStyle
 import com.tangem.tangem_sdk_new.extensions.dpToPx
-import com.tangem.tap.common.extensions.getRoundIconRes
 import com.tangem.tap.features.wallet.models.Currency
 import com.tangem.wallet.databinding.ViewCurrencyIconBinding
 import kotlin.math.roundToInt
@@ -25,46 +23,50 @@ class CurrencyIconView @JvmOverloads constructor(
         this,
     )
 
-    private val currencyImageView: ImageFilterView
+    val currencyImageView: ImageFilterView
         get() = binding.ivCurrency
 
-    private val currencyTextView: TextView
+    val currencyTextView: TextView
         get() = binding.tvTokenLetter
 
-    private var isBlockchainIconVisible: Boolean
+    val blockchainBadge: ImageFilterView
-        get() = binding.ivBlockchain.isVisible
+        get() = binding.ivBlockchainBadge
-        set(value) = binding.ivBlockchain::isVisible.set(value)
 
-    private var isBadgeVisible: Boolean
+    var isBlockchainBadgeVisible: Boolean
-        get() = binding.badge.isVisible
+        get() = binding.ivBlockchainBadge.isVisible
-        set(value) = binding.badge::isVisible.set(value)
+        set(value) = binding.ivBlockchainBadge::isVisible.set(value)
 
-    @DrawableRes
+    var isCustomCurrencyBadgeVisible: Boolean
-    private var blockchainIconRes: Int? = null
+        get() = binding.customBadge.isVisible
-        set(value) {
+        set(value) = binding.customBadge::isVisible.set(value)
-            if (value != null && value != field && isBlockchainIconVisible) {
-                binding.ivBlockchain.setImageResource(value)
-                field = value
-            }
-        }
 
     init {
         minWidth = dpToPx(48f).roundToInt()
         minHeight = dpToPx(48f).roundToInt()
     }
+}
 
-    fun load(
+fun CurrencyIconView.load(
-        currency: Currency,
+    currency: Currency,
-        derivationStyle: DerivationStyle?,
+    derivationStyle: DerivationStyle?,
-    ) {
+) {
-        isBlockchainIconVisible = currency.isToken()
+    isCustomCurrencyBadgeVisible = currency.isCustomCurrency(derivationStyle)
-        isBadgeVisible = currency.isCustomCurrency(derivationStyle)
+
-        blockchainIconRes = currency.blockchain.getRoundIconRes()
+    CurrencyIconRequest(
+        currencyImageView = currencyImageView,
+        currencyTextView = currencyTextView,
+        token = (currency as? Currency.Token)?.token,
+        blockchain = currency.blockchain,
+    ).load()
+
+    if (currency.isToken()) {
+        // load a blockchain icon into the blockchain badge
+        isBlockchainBadgeVisible = true
 
         CurrencyIconRequest(
-            currencyImageView = currencyImageView,
+            currencyImageView = blockchainBadge,
-            currencyTextView = currencyTextView,
+            currencyTextView = null,
-            token = (currency as? Currency.Token)?.token,
+            token = null,
             blockchain = currency.blockchain,
         ).load()
     }

app/src/main/res/layout/view_currency_icon.xml

@@ -35,12 +35,13 @@
             android:textColor="@android:color/white"
             android:textSize="25sp"
             android:textStyle="bold"
+            android:translationY="-1dp"
             tools:text="J" />
 
     </androidx.cardview.widget.CardView>
 
-    <ImageView
+    <androidx.constraintlayout.utils.widget.ImageFilterView
-        android:id="@+id/iv_blockchain"
+        android:id="@+id/iv_blockchain_badge"
         android:layout_width="18dp"
         android:layout_height="18dp"
         android:background="@drawable/shape_circle"
@@ -54,7 +55,7 @@
         tools:visibility="visible" />
 
     <View
-        android:id="@+id/badge"
+        android:id="@+id/custom_badge"
         android:layout_width="10dp"
         android:layout_height="10dp"
         android:background="@drawable/shape_badge_custom_currency"

dependencies.gradle

@@ -2,7 +2,7 @@ ext.versions = [
     kotlin               : '1.6.10',
     build_gradle         : '7.1.3',
     tangem_card_sdk      : 'develop-159',
-    tangem_blockchain_sdk: 'develop-107',
+    tangem_blockchain_sdk: 'develop-111',
     // tangem_blockchain_sdk: '0.0.1',
 ]
 

domain/src/main/java/com/tangem/domain/common/extensions/Blockchain.kt

@@ -5,7 +5,7 @@ import com.tangem.blockchain.common.Blockchain
 fun Blockchain.Companion.fromNetworkId(networkId: String): Blockchain? {
     return when (networkId) {
         "arbitrum-one" -> Blockchain.Arbitrum
-        "arbitrum-one/test" -> Blockchain.ArbitrumTestnet
+        "arbitrum/test" -> Blockchain.ArbitrumTestnet
         "avalanche", "avalanche-2" -> Blockchain.Avalanche
         "avalanche/test", "avalanche-2/test" -> Blockchain.AvalancheTestnet
         "binancecoin" -> Blockchain.Binance
@@ -40,6 +40,7 @@ fun Blockchain.Companion.fromNetworkId(networkId: String): Blockchain? {
         "xdai" -> Blockchain.Gnosis
         "polkadot" -> Blockchain.Polkadot
         "polkadot/test" -> Blockchain.PolkadotTestnet
+        "kusama" -> Blockchain.Kusama
         else -> null
     }
 }
@@ -84,6 +85,7 @@ fun Blockchain.toNetworkId(): String {
         Blockchain.Gnosis -> "xdai"
         Blockchain.Polkadot -> "polkadot"
         Blockchain.PolkadotTestnet -> "polkadot/test"
+        Blockchain.Kusama -> "kusama"
     }
 }
 
@@ -101,15 +103,16 @@ fun Blockchain.toCoinId(): String {
         Blockchain.Avalanche, Blockchain.AvalancheTestnet -> "avalanche-2"
         Blockchain.Solana, Blockchain.SolanaTestnet -> "solana"
         Blockchain.Fantom, Blockchain.FantomTestnet -> "fantom"
+        Blockchain.Tron, Blockchain.TronTestnet -> "tron"
+        Blockchain.Polkadot, Blockchain.PolkadotTestnet -> "polkadot"
         Blockchain.Ducatus -> "ducatus"
         Blockchain.Litecoin -> "litecoin"
         Blockchain.RSK -> "rootstock"
         Blockchain.Tezos -> "tezos"
         Blockchain.XRP -> "ripple"
         Blockchain.Dogecoin -> "dogecoin"
-        Blockchain.Tron, Blockchain.TronTestnet -> "tron"
         Blockchain.Gnosis -> "xdai"
-        Blockchain.Polkadot, Blockchain.PolkadotTestnet -> "polkadot"
+        Blockchain.Kusama -> "kusama"
         Blockchain.Unknown -> "unknown"
     }
 }

domain/src/main/java/com/tangem/domain/common/extensions/CardSdk.kt

@@ -18,8 +18,7 @@ fun Card.supportedBlockchains(): List<Blockchain> {
             Blockchain.fromCurve(EllipticCurve.Secp256k1)
         }
         else -> {
-            Blockchain.fromCurve(EllipticCurve.Secp256k1) +
+            (Blockchain.fromCurve(EllipticCurve.Secp256k1) + Blockchain.fromCurve(EllipticCurve.Ed25519)).distinct()
-                Blockchain.fromCurve(EllipticCurve.Ed25519)
         }
     }
     val filtered = supportedBlockchains.filter { isTestCard == it.isTestnet() }

domain/src/test/java/com/tangem/domain/features/BlockchainTests.kt

@@ -0,0 +1,20 @@
+package com.tangem.domain.features
+
+import com.google.common.truth.Truth
+import com.tangem.blockchain.common.Blockchain
+import com.tangem.domain.common.extensions.fromNetworkId
+import com.tangem.domain.common.extensions.toNetworkId
+import org.junit.Test
+
+class BlockchainTests {
+    @Test
+    fun allNetworkIdsAreImplemented() {
+        val unimplementedIds = Blockchain.values()
+            .toMutableList()
+            .apply { remove(Blockchain.Unknown) }
+            .map { it to Blockchain.fromNetworkId(it.toNetworkId()) }
+            .mapNotNull { if(it.second == null) it.first else null }
+
+        Truth.assertThat(unimplementedIds).isEmpty()
+    }
+}

domain/src/test/java/com/tangem/domain/features/ExampleUnitTest.kt

@@ -1,16 +0,0 @@
-package com.tangem.domain.features
-
-import org.junit.Assert.assertEquals
-import org.junit.Test
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * See [testing documentation](http://d.android.com/tools/testing).
- */
-class ExampleUnitTest {
-    @Test
-    fun addition_isCorrect() {
-        assertEquals(4, 2 + 2)
-    }
-}