Updated on 2026-08-14

app/src/main/java/com/tangem/App.kt

@@ -8,6 +8,7 @@ import com.tangem.data.local.PendingTransactionsStorage
 import com.tangem.card_android.android.data.Firmwares
 import com.tangem.card_android.android.data.PINStorage
 import com.tangem.card_common.data.Issuer
+import com.tangem.data.dp.PrefsManager
 import com.tangem.di.*
 import com.tangem.server_android.data.LocalStorage
 import java.io.InputStreamReader
@@ -42,6 +43,8 @@ class App : Application() {
         navigatorComponent = buildNavigatorComponent()
         toastHelperComponent = buildToastHelperComponent()
 
+        PrefsManager.getInstance().init(this)
+
         // common init
         if (PINStorage.needInit())
             PINStorage.init(applicationContext)

app/src/main/java/com/tangem/Constant.kt

@@ -7,6 +7,9 @@ object Constant {
     const val FLAVOR_TANGEM_ACCESS = "tangemAccess"
     const val FLAVOR_TANGEM_CARDANO = "tangemCardano"
 
+
+    const val PREF_LAST_WALLET_ADDRESS = "last_wallet_address"
+
     const val URL_TANGEM = "https://play.google.com/store/apps/details?id=com.tangem.wallet"
 
     const val EXTRA_BLOCKCHAIN_DATA = "BLOCKCHAIN_DATA"

app/src/main/java/com/tangem/data/dp/PrefsManager.kt

@@ -0,0 +1,44 @@
+package com.tangem.data.dp
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.SharedPreferences
+
+import com.orhanobut.hawk.Hawk
+import com.tangem.Constant
+
+class PrefsManager {
+    companion object {
+        const val PREF_NAME = "tangem_access"
+        @SuppressLint("StaticFieldLeak")
+        private var instance: PrefsManager? = null
+
+        fun getInstance(): PrefsManager {
+            if (instance == null) {
+                instance = PrefsManager()
+            }
+            return instance as PrefsManager
+        }
+    }
+
+    private lateinit var context: Context
+    private lateinit var preferences: SharedPreferences
+
+    fun init(context: Context) {
+        this.context = context
+        preferences = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE)
+        Hawk.init(context).build()
+    }
+
+    val lastWalletAddress: String
+        get() = Hawk.get(Constant.PREF_LAST_WALLET_ADDRESS, "")
+
+    fun saveLastWalletAddress(value: String) {
+        Hawk.put(Constant.PREF_LAST_WALLET_ADDRESS, value)
+    }
+
+    fun clearLastWalletAddress() {
+        Hawk.delete(Constant.PREF_LAST_WALLET_ADDRESS)
+    }
+
+}