Updated on 2026-08-14

app/src/main/java/com/tangem/tap/TapApplication.kt

@@ -8,6 +8,7 @@ import com.google.firebase.ktx.Firebase
 import com.google.firebase.remoteconfig.ktx.remoteConfig
 import com.google.firebase.remoteconfig.ktx.remoteConfigSettings
 import com.tangem.Log
+import com.tangem.LogFormat
 import com.tangem.blockchain.network.BlockchainSdkRetrofitBuilder
 import com.tangem.domain.DomainLayer
 import com.tangem.network.common.MoshiConverter
@@ -108,7 +109,21 @@ class TapApplication : Application(), ImageLoaderFactory {
         val infoHolder = AdditionalFeedbackInfo()
         infoHolder.setAppVersion(this)
 
-        val logWriter = TangemLogCollector()
+        val logLevels = listOf(
+            Log.Level.ApduCommand,
+            Log.Level.Apdu,
+            Log.Level.Tlv,
+            Log.Level.Nfc,
+            Log.Level.Command,
+            Log.Level.Session,
+            Log.Level.View,
+            Log.Level.Network,
+            Log.Level.Error,
+        )
+        val logWriter = TangemLogCollector(
+            levels = logLevels,
+            messageFormatter = LogFormat.StairsFormatter()
+        )
         Log.addLogger(logWriter)
 
         store.dispatch(GlobalAction.SetFeedbackManager(FeedbackManager(infoHolder, logWriter)))

app/src/main/java/com/tangem/tap/common/log/TangemLogCollector.kt

@@ -1,25 +1,31 @@
 package com.tangem.tap.common.log
 
 import com.tangem.Log
+import com.tangem.LogFormat
 import com.tangem.TangemSdkLogger
 import java.text.SimpleDateFormat
-import java.util.Date
+import java.util.*
+
+class TangemLogCollector(
+    private val levels: List<Log.Level>,
+    private val messageFormatter: LogFormat,
+) : TangemSdkLogger {
 
-class TangemLogCollector : TangemSdkLogger {
     private val dateFormatter = SimpleDateFormat("HH:mm:ss.SSS")
     private val logs = mutableListOf<String>()
     private val mutex = Object()
 
     override fun log(message: () -> String, level: Log.Level) {
-        val time = dateFormatter.format(Date())
+        if (!levels.contains(level)) return
+
         synchronized(mutex) {
-            logs.add("$time: ${message()}\n")
+            val formattedMessage = messageFormatter.format(message, level)
+            val logMessage = "${dateFormatter.format(Date())}: $formattedMessage"
+            logs.add("$logMessage\n")
         }
     }
 
     fun getLogs(): List<String> = synchronized(mutex) { logs.toList() }
 
-    fun clearLogs() {
-        synchronized(mutex) { logs.clear() }
-    }
+    fun clearLogs() = synchronized(mutex) { logs.clear() }
 }

dependencies.gradle

@@ -1,7 +1,7 @@
 ext.versions = [
     kotlin               : '1.6.10',
     build_gradle         : '7.1.3',
-    tamgem_card_sdk      : 'develop-156',
+    tamgem_card_sdk      : 'develop-157',
     tamgem_blockchain_sdk: 'develop-99',
 ]
 
@@ -9,4 +9,4 @@ ext.environmentConfig = [
         environment      : "ENVIRONMENT",
         testActionEnabled: "TEST_ACTION_ENABLED",
         logEnabled       : "LOG_ENABLED",
-]
+]