diff --git a/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeStripeView.kt b/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeStripeView.kt
index 4d5d18f3..a84b3fe1 100644
--- a/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeStripeView.kt
+++ b/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeStripeView.kt
@@ -26,8 +26,12 @@ open class ChipTanFlickerCodeStripeView @JvmOverloads constructor(
     }
 
 
-    open fun showStripe(showStripe: Bit) {
-        if (showStripe == Bit.High) {
+    open fun setStripeVisibility(stripe: Bit) {
+        setStripeVisibility(stripe.isHigh)
+    }
+
+    open fun setStripeVisibility(showStripe: Boolean) {
+        if (showStripe) {
             drawWhite()
         }
         else {
diff --git a/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeView.kt b/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeView.kt
index 40062eeb..f3f6b489 100644
--- a/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeView.kt
+++ b/ui/BankingAndroidApp/src/main/java/net/dankito/banking/ui/android/views/ChipTanFlickerCodeView.kt
@@ -11,10 +11,9 @@ import kotlinx.android.synthetic.main.view_tan_image_size_controls.view.*
 import net.dankito.banking.ui.android.R
 import net.dankito.banking.ui.model.tan.FlickerCode
 import net.dankito.banking.ui.util.FlickerCodeAnimator
-import net.dankito.banking.ui.util.Bit
 import net.dankito.banking.ui.model.settings.ITanView
 import net.dankito.banking.ui.model.settings.TanProcedureSettings
-import net.dankito.utils.android.extensions.asActivity
+import net.dankito.banking.ui.util.Step
 
 
 open class ChipTanFlickerCodeView @JvmOverloads constructor(
@@ -227,19 +226,17 @@ open class ChipTanFlickerCodeView @JvmOverloads constructor(
         this.didTanProcedureSettingsChange = false
 
         animator.animateFlickerCode(flickerCode) { step ->
-            context.asActivity()?.runOnUiThread {
-                showStepOnUiThread(step)
-            }
+            showStepOnUiThread(step)
         }
     }
 
-    protected open fun showStepOnUiThread(step: Array<Bit>) {
+    protected open fun showStepOnUiThread(step: Step) {
 
-        stripe1.showStripe(step[0])
-        stripe2.showStripe(step[1])
-        stripe3.showStripe(step[2])
-        stripe4.showStripe(step[3])
-        stripe5.showStripe(step[4])
+        stripe1.setStripeVisibility(step.bit1)
+        stripe2.setStripeVisibility(step.bit2)
+        stripe3.setStripeVisibility(step.bit3)
+        stripe4.setStripeVisibility(step.bit4)
+        stripe5.setStripeVisibility(step.bit5)
     }
 
 }
\ No newline at end of file
diff --git a/ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/ChipTanFlickerCodeView.kt b/ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/ChipTanFlickerCodeView.kt
index 8b9b8d55..c6368fd9 100644
--- a/ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/ChipTanFlickerCodeView.kt
+++ b/ui/BankingJavaFxControls/src/main/kotlin/net/dankito/banking/ui/javafx/dialogs/tan/controls/ChipTanFlickerCodeView.kt
@@ -11,6 +11,7 @@ import net.dankito.banking.javafx.dialogs.tan.controls.ChipTanFlickerCodeStripeV
 import net.dankito.banking.javafx.dialogs.tan.controls.TanGeneratorMarkerView
 import net.dankito.banking.ui.model.settings.ITanView
 import net.dankito.banking.ui.model.settings.TanProcedureSettings
+import net.dankito.banking.ui.util.Step
 import net.dankito.utils.javafx.ui.extensions.fixedHeight
 import net.dankito.utils.javafx.ui.extensions.fixedWidth
 import net.dankito.utils.javafx.ui.extensions.setBackgroundToColor
@@ -171,19 +172,17 @@ open class ChipTanFlickerCodeView(
         updateMinAndMaxFrequencyReached()
 
         animator.animateFlickerCode(flickerCode) { step ->
-            runLater {
-                paintFlickerCode(step)
-            }
+            paintFlickerCode(step)
         }
     }
 
 
-    protected open fun paintFlickerCode(step: Array<Bit>) {
-        stripe1.set(step[0] == Bit.High)
-        stripe2.set(step[1] == Bit.High)
-        stripe3.set(step[2] == Bit.High)
-        stripe4.set(step[3] == Bit.High)
-        stripe5.set(step[4] == Bit.High)
+    protected open fun paintFlickerCode(step: Step) {
+        stripe1.set(step.bit1.isHigh)
+        stripe2.set(step.bit2.isHigh)
+        stripe3.set(step.bit3.isHigh)
+        stripe4.set(step.bit4.isHigh)
+        stripe5.set(step.bit5.isHigh)
     }
 
     protected open fun setLeftMarkerPosition(component: UIComponent) {
diff --git a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Bit.kt b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Bit.kt
index f43aca5e..5b772a1f 100644
--- a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Bit.kt
+++ b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Bit.kt
@@ -8,6 +8,11 @@ enum class Bit(val value: Int) {
     High(1);
 
 
+    val isHigh: Boolean
+        get() = this == High
+
+    val isLow: Boolean = !!! this.isHigh
+
     fun invert(): Bit {
         if (this == High) {
             return Low
diff --git a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeAnimator.kt b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeAnimator.kt
index 75be6aba..b91a9eb6 100644
--- a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeAnimator.kt
+++ b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeAnimator.kt
@@ -27,11 +27,11 @@ open class FlickerCodeAnimator {
 
 
 
-    open fun animateFlickerCode(flickerCode: FlickerCode, showStep: (Array<Bit>) -> Unit) {
+    open fun animateFlickerCode(flickerCode: FlickerCode, showStep: (Step) -> Unit) {
         animateFlickerCode(flickerCode, DefaultFrequency, showStep)
     }
 
-    open fun animateFlickerCode(flickerCode: FlickerCode, frequency: Int, showStep: (Array<Bit>) -> Unit) {
+    open fun animateFlickerCode(flickerCode: FlickerCode, frequency: Int, showStep: (Step) -> Unit) {
         stop() // stop may still running previous animation
 
         currentFrequency = frequency
@@ -43,7 +43,7 @@ open class FlickerCodeAnimator {
         }
     }
 
-    protected open suspend fun calculateAnimation(steps: List<Array<Bit>>, showStep: (Array<Bit>) -> Unit) {
+    protected open suspend fun calculateAnimation(steps: List<Step>, showStep: (Step) -> Unit) {
         var currentStepIndex = 0
 
         while (true) {
diff --git a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeStepsCalculator.kt b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeStepsCalculator.kt
index e8b5b495..7515a0d0 100644
--- a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeStepsCalculator.kt
+++ b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/FlickerCodeStepsCalculator.kt
@@ -7,36 +7,36 @@ open class FlickerCodeStepsCalculator {
 
     companion object {
 
-        val bits = mutableMapOf<Char, List<Bit>>()
+        val bits = mutableMapOf<Char, Step>()
 
         init {
             /* bitfield: clock, bits 2^1, 2^2, 2^3, 2^4 */
-            bits['0'] = listOf(Bit.Low, Bit.Low, Bit.Low, Bit.Low, Bit.Low)
-            bits['1'] = listOf(Bit.Low, Bit.High, Bit.Low, Bit.Low, Bit.Low)
-            bits['2'] = listOf(Bit.Low, Bit.Low, Bit.High, Bit.Low, Bit.Low)
-            bits['3'] = listOf(Bit.Low, Bit.High, Bit.High, Bit.Low, Bit.Low)
-            bits['4'] = listOf(Bit.Low, Bit.Low, Bit.Low, Bit.High, Bit.Low)
-            bits['5'] = listOf(Bit.Low, Bit.High, Bit.Low, Bit.High, Bit.Low)
-            bits['6'] = listOf(Bit.Low, Bit.Low, Bit.High, Bit.High, Bit.Low)
-            bits['7'] = listOf(Bit.Low, Bit.High, Bit.High, Bit.High, Bit.Low)
-            bits['8'] = listOf(Bit.Low, Bit.Low, Bit.Low, Bit.Low, Bit.High)
-            bits['9'] = listOf(Bit.Low, Bit.High, Bit.Low, Bit.Low, Bit.High)
-            bits['A'] = listOf(Bit.Low, Bit.Low, Bit.High, Bit.Low, Bit.High)
-            bits['B'] = listOf(Bit.Low, Bit.High, Bit.High, Bit.Low, Bit.High)
-            bits['C'] = listOf(Bit.Low, Bit.Low, Bit.Low, Bit.High, Bit.High)
-            bits['D'] = listOf(Bit.Low, Bit.High, Bit.Low, Bit.High, Bit.High)
-            bits['E'] = listOf(Bit.Low, Bit.Low, Bit.High, Bit.High, Bit.High)
-            bits['F'] = listOf(Bit.Low, Bit.High, Bit.High, Bit.High, Bit.High)
+            bits['0'] = Step(Bit.Low, Bit.Low, Bit.Low, Bit.Low, Bit.Low)
+            bits['1'] = Step(Bit.Low, Bit.High, Bit.Low, Bit.Low, Bit.Low)
+            bits['2'] = Step(Bit.Low, Bit.Low, Bit.High, Bit.Low, Bit.Low)
+            bits['3'] = Step(Bit.Low, Bit.High, Bit.High, Bit.Low, Bit.Low)
+            bits['4'] = Step(Bit.Low, Bit.Low, Bit.Low, Bit.High, Bit.Low)
+            bits['5'] = Step(Bit.Low, Bit.High, Bit.Low, Bit.High, Bit.Low)
+            bits['6'] = Step(Bit.Low, Bit.Low, Bit.High, Bit.High, Bit.Low)
+            bits['7'] = Step(Bit.Low, Bit.High, Bit.High, Bit.High, Bit.Low)
+            bits['8'] = Step(Bit.Low, Bit.Low, Bit.Low, Bit.Low, Bit.High)
+            bits['9'] = Step(Bit.Low, Bit.High, Bit.Low, Bit.Low, Bit.High)
+            bits['A'] = Step(Bit.Low, Bit.Low, Bit.High, Bit.Low, Bit.High)
+            bits['B'] = Step(Bit.Low, Bit.High, Bit.High, Bit.Low, Bit.High)
+            bits['C'] = Step(Bit.Low, Bit.Low, Bit.Low, Bit.High, Bit.High)
+            bits['D'] = Step(Bit.Low, Bit.High, Bit.Low, Bit.High, Bit.High)
+            bits['E'] = Step(Bit.Low, Bit.Low, Bit.High, Bit.High, Bit.High)
+            bits['F'] = Step(Bit.Low, Bit.High, Bit.High, Bit.High, Bit.High)
         }
 
     }
 
 
-    open fun calculateSteps(flickerCode: String): List<Array<Bit>> {
+    open fun calculateSteps(flickerCode: String): List<Step> {
 
         val halfbyteid = ObjectHolder(0)
         val clock = ObjectHolder(Bit.High)
-        val bitarray = mutableListOf<MutableList<Bit>>()
+        val bitarray = mutableListOf<Step>()
 
 
         /* prepend synchronization identifier */
@@ -46,11 +46,11 @@ open class FlickerCodeStepsCalculator {
         }
 
         for (i in 0 until code.length step 2) {
-            bits[code[i + 1]]?.let { bitarray.add(mutableListOf(*it.toTypedArray())) }
-            bits[code[i]]?.let { bitarray.add(mutableListOf(*it.toTypedArray())) }
+            bits[code[i + 1]]?.let { bitarray.add(it) }
+            bits[code[i]]?.let { bitarray.add(it) }
         }
 
-        val steps = mutableListOf<Array<Bit>>()
+        val steps = mutableListOf<Step>()
 
         do {
             steps.add(calculateStep(halfbyteid, clock, bitarray))
@@ -59,10 +59,9 @@ open class FlickerCodeStepsCalculator {
         return steps
     }
 
-    protected open fun calculateStep(halfbyteid: ObjectHolder<Int>, clock: ObjectHolder<Bit>, bitarray: MutableList<MutableList<Bit>>): Array<Bit> {
-        bitarray[halfbyteid.value][0] = clock.value
+    protected open fun calculateStep(halfbyteid: ObjectHolder<Int>, clock: ObjectHolder<Bit>, bitarray: List<Step>): Step {
+        val step = Step(clock.value, bitarray[halfbyteid.value])
 
-        val stepBits = Array(5) { index -> bitarray[halfbyteid.value][index] }
 
         clock.value = clock.value.invert()
 
@@ -75,7 +74,7 @@ open class FlickerCodeStepsCalculator {
 
         }
 
-        return stepBits
+        return step
     }
 
 }
\ No newline at end of file
diff --git a/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Step.kt b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Step.kt
new file mode 100644
index 00000000..727ab246
--- /dev/null
+++ b/ui/BankingUiCommon/src/commonMain/kotlin/net/dankito/banking/ui/util/Step.kt
@@ -0,0 +1,14 @@
+package net.dankito.banking.ui.util
+
+
+open class Step(
+    val bit1: Bit,
+    val bit2: Bit,
+    val bit3: Bit,
+    val bit4: Bit,
+    val bit5: Bit
+) {
+
+    constructor(clockBit: Bit, step: Step) : this(clockBit, step.bit2, step.bit3, step.bit4, step.bit5)
+
+}
\ No newline at end of file