diff --git a/Android/app/src/main/java/com/example/mathseduc/ui/activity_quiz_multi.kt b/Android/app/src/main/java/com/example/mathseduc/ui/activity_quiz_multi.kt
index 679cf32..48d2f84 100644
--- a/Android/app/src/main/java/com/example/mathseduc/ui/activity_quiz_multi.kt
+++ b/Android/app/src/main/java/com/example/mathseduc/ui/activity_quiz_multi.kt
@@ -1,7 +1,5 @@
 package com.example.mathseduc.ui
 
-import android.os.CountDownTimer
-import android.util.Log
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -18,32 +16,38 @@ import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.style.TextAlign
-import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import com.example.mathseduc.QuizMultiActivity
 import com.example.mathseduc.controllers.ControllerLobby
 import com.example.mathseduc.controllers.ControllerQuestion
 import com.example.mathseduc.ui.theme.Colors
-import com.example.mathseduc.ui.theme.MathsEducTheme
-
-
-
+import kotlinx.coroutines.channels.ticker
 
 
 @Composable
 fun QuizMultiScreen(lobbyId: Int) {
     var progressBar1Value by remember { mutableStateOf(0.0f) }
     var chronoValue by remember { mutableStateOf(0.0f) }
-    var listQuestion = ControllerQuestion.getQuestionsForLobby(ControllerLobby.getIdQuestionsLobby(lobbyId))
+    var listQuestion by remember { mutableStateOf(ControllerQuestion.getQuestionsForLobby(ControllerLobby.getIdQuestionsLobby(lobbyId))) }
+
+    LaunchedEffect(Unit) {
+        val timer = ticker(delayMillis = 100) // Update every 100 milliseconds
+        for (tick in timer) {
+            progressBar1Value += 0.1f // Increment ProgressBar1 value every 100ms
+            chronoValue += 0.1f // Increment Chrono value every 100ms
+            if (chronoValue >= 30f) {
+                // Time's up, do something
+                break
+            }
+        }
+    }
 
     Column(
         modifier = Modifier
@@ -51,39 +55,12 @@ fun QuizMultiScreen(lobbyId: Int) {
             .padding(16.dp),
         verticalArrangement = Arrangement.SpaceBetween
     ) {
-        // ProgressBar1
-        LinearProgressIndicator(
-            progress = progressBar1Value/100f,
-            modifier = Modifier.fillMaxWidth()
-        )
 
-        Spacer(modifier = Modifier.weight(0.025f))
-
-        LinearProgressIndicator(
-            progress = 0.05f,
-            modifier = Modifier.fillMaxWidth()
-        )
-
-        Spacer(modifier = Modifier.weight(0.025f))
-
-        LinearProgressIndicator(
-            progress = 0.05f,
-            modifier = Modifier.fillMaxWidth()
-        )
-
-        Spacer(modifier = Modifier.weight(0.025f))
-
-        LinearProgressIndicator(
-            progress = 1f,
-            modifier = Modifier.fillMaxWidth()
-        )
+        // ProgressBar1
+        CustomProgressBar(progressBar1Value)
 
         // Chrono ProgressBar
-        CircularProgressIndicator(
-            progress = chronoValue/30f,
-            modifier = Modifier
-                .padding(horizontal = 10.dp)
-        )
+        ChronoProgressBar(chronoValue)
 
         Row(
             modifier = Modifier
@@ -95,13 +72,13 @@ fun QuizMultiScreen(lobbyId: Int) {
             Box(
                 modifier = Modifier
                     .weight(5f)
-                    .background(color = Color.Gray, shape = RoundedCornerShape(8.dp))
+                    .background(color = Colors.Grey, shape = RoundedCornerShape(8.dp))
             ) {
                 Text(
                     text = "test",
                     modifier = Modifier
                         .padding(16.dp),
-                    color = Color.White,
+                    color = Colors.White,
                     fontSize = 20.sp,
                     textAlign = TextAlign.Center
                 )
@@ -125,7 +102,7 @@ fun QuizMultiScreen(lobbyId: Int) {
                     shape = RoundedCornerShape(15),
                     colors = ButtonDefaults.buttonColors(Colors.Blue),
 
-                ) {
+                    ) {
                     Text(text = "Answer1")
                 }
 
@@ -211,24 +188,20 @@ fun QuizMultiScreen(lobbyId: Int) {
             Spacer(modifier = Modifier.weight(1f))
         }
     }
+}
 
-    // CountDownTimer
-    DisposableEffect(Unit) {
-        QuizMultiActivity.countDownTimer = object : CountDownTimer(30 * 1000, 1000) {
-            override fun onTick(millisUntilFinished: Long) {
-                progressBar1Value += 1f // Increment ProgressBar1 value every second
-                chronoValue += 1.0f // Increment Chrono value every second
-            }
-
-            override fun onFinish() {
-                // Code to execute when the timer is finished
-            }
-        }
-        QuizMultiActivity.countDownTimer?.start()
+@Composable
+fun CustomProgressBar(progressBarValue: Float) {
+    LinearProgressIndicator(
+        progress = progressBarValue / 100f,
+        modifier = Modifier.fillMaxWidth()
+    )
+}
 
-        onDispose {
-            // Stop the CountDownTimer to avoid memory leaks
-            QuizMultiActivity.countDownTimer?.cancel()
-        }
-    }
+@Composable
+fun ChronoProgressBar(chronoValue: Float) {
+    CircularProgressIndicator(
+        progress = chronoValue / 30f,
+        modifier = Modifier.padding(horizontal = 10.dp)
+    )
 }