Updated on 2026-08-14

app/src/main/java/com/tangem/di/ToastHelper.kt

@@ -9,6 +9,7 @@ import com.google.android.material.snackbar.Snackbar
 import com.tangem.Constant
 import com.tangem.wallet.R
 
+
 class ToastHelper {
 
     fun showSnackbarUpdateVersion(context: Context, vg: ViewGroup, versionName: String) {
@@ -24,6 +25,20 @@ class ToastHelper {
                 }.show()
     }
 
+    fun showSnackbarSuccess(context: Context, vg: ViewGroup, message: String) {
+        val snackbar = Snackbar.make(vg, message, Snackbar.LENGTH_INDEFINITE)
+        snackbar.setAction(R.string.ok) {
+            snackbar.dismiss()
+        }
+        snackbar.show()
+    }
 
+    fun showSnackbarError(context: Context, vg: ViewGroup, message: String) {
+        val snackbar = Snackbar.make(vg, message, Snackbar.LENGTH_INDEFINITE)
+        snackbar.setAction(R.string.ok) {
+            snackbar.dismiss()
+        }
+        snackbar.show()
+    }
 
 }

app/src/main/java/com/tangem/di/ToastHelperComponent.kt

@@ -1,5 +1,6 @@
 package com.tangem.di
 
+import com.tangem.ui.PrepareTransactionActivity
 import com.tangem.ui.activity.MainActivity
 import dagger.Component
 import javax.inject.Singleton
@@ -10,4 +11,6 @@ interface ToastHelperComponent {
 
     fun inject(activity: MainActivity)
 
+    fun inject(activity: PrepareTransactionActivity)
+
 }

app/src/tangemCardano/java/com/tangem/ui/PrepareTransactionActivity.kt

@@ -20,14 +20,18 @@ import com.tangem.App
 import com.tangem.Constant
 import com.tangem.card_android.android.nfc.NfcLifecycleObserver
 import com.tangem.card_android.android.reader.NfcManager
-import com.tangem.data.Blockchain
 import com.tangem.data.dp.PrefsManager
 import com.tangem.di.Navigator
+import com.tangem.di.ToastHelper
 import com.tangem.domain.wallet.CoinEngineFactory
 import com.tangem.domain.wallet.TangemContext
+import com.tangem.ui.event.TransactionFinishWithError
+import com.tangem.ui.event.TransactionFinishWithSuccess
 import com.tangem.util.UtilHelper
 import com.tangem.wallet.R
 import kotlinx.android.synthetic.tangemCardano.activity_prepare_transaction.*
+import org.greenrobot.eventbus.EventBus
+import org.greenrobot.eventbus.Subscribe
 import java.io.IOException
 import javax.inject.Inject
 
@@ -43,15 +47,39 @@ class PrepareTransactionActivity : AppCompatActivity(), NfcAdapter.ReaderCallbac
 
     @Inject
     internal lateinit var navigator: Navigator
+    @Inject
+    internal lateinit var toastHelper: ToastHelper
 
     //    private lateinit var ctx: TangemContext
     private lateinit var nfcManager: NfcManager
 
+    override fun onStart() {
+        super.onStart()
+        if (!EventBus.getDefault().isRegistered(this))
+            EventBus.getDefault().register(this)
+    }
+
+    override fun onDestroy() {
+        EventBus.getDefault().unregister(this)
+        super.onDestroy()
+    }
+
+    @Subscribe
+    fun onTransactionFinishWithSuccess(transactionFinishWithSuccess: TransactionFinishWithSuccess) {
+        transactionFinishWithSuccess.message?.let { toastHelper.showSnackbarSuccess(this, cl, it) }
+    }
+
+    @Subscribe
+    fun onTransactionFinishWithError(transactionFinishWithError: TransactionFinishWithError) {
+        transactionFinishWithError.message?.let { toastHelper.showSnackbarError(this, cl, it) }
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_prepare_transaction)
 
         App.navigatorComponent.inject(this)
+        App.toastHelperComponent.inject(this)
 
         nfcManager = NfcManager(this, this)
         lifecycle.addObserver(NfcLifecycleObserver(nfcManager))

app/src/tangemCardano/res/layout/activity_prepare_transaction.xml

@@ -2,6 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/cl"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context="com.tangem.ui.PrepareTransactionActivity"
@@ -135,12 +136,12 @@
         </LinearLayout>
 
         <EditText
-            android:drawableEnd="@android:drawable/ic_menu_close_clear_cancel"
             android:id="@+id/etWallet"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginStart="8dp"
             android:layout_marginEnd="8dp"
+            android:drawableEnd="@android:drawable/ic_menu_close_clear_cancel"
             android:fontFamily="@font/maax"
             android:hint="@string/enter_wallet_address"
             android:imeOptions="actionNext"