feat: Improve AudioVisualizer, add visualizer to StartRecording for old recording

app/src/main/java/app/myzel394/locationtest/ui/Constants.kt

@@ -0,0 +1,5 @@
+package app.myzel394.locationtest.ui
+
+import androidx.compose.ui.unit.dp
+
+val BIG_PRIMARY_BUTTON_SIZE = 64.dp

app/src/main/java/app/myzel394/locationtest/ui/components/AudioRecorder/atoms/AudioVisualizer.kt

@@ -1,6 +1,7 @@
 package app.myzel394.locationtest.ui.components.AudioRecorder.atoms
 
 import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.width
 import androidx.compose.material3.MaterialTheme
@@ -19,12 +20,15 @@ private const val MAX_AMPLITUDE = 10000
 @Composable
 fun AudioVisualizer(
     amplitudes: List<Int>,
+    showAll: Boolean = false
 ) {
     val primary = MaterialTheme.colorScheme.primary
     val primaryMuted = primary.copy(alpha = 0.3f)
 
     Canvas(
-        modifier = Modifier.width(300.dp).height(300.dp)
+        modifier = Modifier
+            .fillMaxWidth()
+            .height(300.dp),
     ) {
         val height = this.size.height / 2f
         val width = this.size.width
@@ -32,14 +36,17 @@ fun AudioVisualizer(
         translate(width, height) {
             amplitudes.forEachIndexed { index, amplitude ->
                 val amplitudePercentage = (amplitude.toFloat() / MAX_AMPLITUDE).coerceAtMost(1f)
+                val boxWidth = if (showAll) width / amplitudes.size else 15f
                 val boxHeight = height * amplitudePercentage
+
                 drawRoundRect(
                     color = if (amplitudePercentage > 0.05f) primary else primaryMuted,
                     topLeft = Offset(
-                        30f * (index - amplitudes.size),
+                        if (showAll) -width / amplitudes.size * index
+                        else 30f * (index - amplitudes.size),
                         -boxHeight / 2f
                     ),
-                    size = Size(15f, boxHeight),
+                    size = Size(boxWidth, boxHeight),
                     cornerRadius = CornerRadius(3f, 3f)
                 )
             }

app/src/main/java/app/myzel394/locationtest/ui/components/AudioRecorder/atoms/RecordingStatus.kt

@@ -7,6 +7,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
@@ -32,6 +33,7 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import app.myzel394.locationtest.services.RecorderService
+import app.myzel394.locationtest.ui.BIG_PRIMARY_BUTTON_SIZE
 import app.myzel394.locationtest.ui.components.atoms.Pulsating
 import app.myzel394.locationtest.ui.utils.formatDuration
 import app.myzel394.locationtest.ui.utils.rememberFileSaverDialog
@@ -63,38 +65,53 @@ fun RecordingStatus(
     Column(
         modifier = Modifier.fillMaxSize(),
         horizontalAlignment = Alignment.CenterHorizontally,
-        verticalArrangement = Arrangement.Center,
+        verticalArrangement = Arrangement.SpaceBetween,
     ) {
+        Box {}
         AudioVisualizer(amplitudes = service.amplitudes)
-
-        Row(
-            verticalAlignment = Alignment.CenterVertically,
-            horizontalArrangement = Arrangement.Center,
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally,
         ) {
-            val distance = Duration.between(service.recordingStart.value, now).toMillis()
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.Center,
+            ) {
+                val distance = Duration.between(service.recordingStart.value, now).toMillis()
 
-            Pulsating {
-                Box(
-                    modifier = Modifier
-                        .size(16.dp)
-                        .clip(CircleShape)
-                        .background(Color.Red)
+                Pulsating {
+                    Box(
+                        modifier = Modifier
+                            .size(16.dp)
+                            .clip(CircleShape)
+                            .background(Color.Red)
+                    )
+                }
+                Spacer(modifier = Modifier.width(16.dp))
+                Text(
+                    text = formatDuration(distance),
+                    style = MaterialTheme.typography.headlineLarge,
                 )
             }
-            Spacer(modifier = Modifier.width(16.dp))
-            Text(
-                text = formatDuration(distance),
-                style = MaterialTheme.typography.headlineLarge,
+            Spacer(modifier = Modifier.height(16.dp))
+            LinearProgressIndicator(
+                progress = progress,
+                modifier = Modifier
+                    .width(300.dp)
             )
+            Spacer(modifier = Modifier.height(32.dp))
+            Button(
+                onClick = {
+                    RecorderService.stopService(context)
+                },
+                colors = ButtonDefaults.textButtonColors(),
+            ) {
+                Text("Cancel")
+            }
         }
-        Spacer(modifier = Modifier.height(8.dp))
-        LinearProgressIndicator(
-            progress = progress,
-            modifier = Modifier
-                .width(300.dp)
-        )
-        Spacer(modifier = Modifier.height(32.dp))
         Button(
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(BIG_PRIMARY_BUTTON_SIZE),
             onClick = {
                 RecorderService.stopService(context)
 
@@ -107,13 +124,5 @@ fun RecordingStatus(
             )
             Text("Save Recording")
         }
-        Button(
-            onClick = {
-                RecorderService.stopService(context)
-            },
-            colors = ButtonDefaults.textButtonColors(),
-        ) {
-            Text("Cancel")
-        }
     }
 }

app/src/main/java/app/myzel394/locationtest/ui/components/AudioRecorder/atoms/StartRecording.kt

@@ -6,6 +6,7 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
@@ -27,6 +28,7 @@ import androidx.compose.ui.semantics.contentDescription
 import androidx.compose.ui.semantics.semantics
 import androidx.compose.ui.unit.dp
 import app.myzel394.locationtest.services.RecorderService
+import app.myzel394.locationtest.ui.BIG_PRIMARY_BUTTON_SIZE
 import app.myzel394.locationtest.ui.utils.rememberFileSaverDialog
 import java.time.format.DateTimeFormatter
 
@@ -45,6 +47,9 @@ fun StartRecording(
         horizontalAlignment = Alignment.CenterHorizontally,
     ) {
         Box {}
+        if (service != null && service.amplitudes.isNotEmpty()) {
+            Box {}
+        }
         Button(
             onClick = {
                 RecorderService.startService(context, connection)
@@ -73,8 +78,14 @@ fun StartRecording(
                 )
             }
         }
+        if (service != null && service.amplitudes.isNotEmpty()) {
+            AudioVisualizer(amplitudes = service.amplitudes, showAll = true)
+        }
         if (service?.originalRecordingStart != null)
             Button(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(BIG_PRIMARY_BUTTON_SIZE),
                 onClick = {
                     saveFile(service.concatenateFiles())
                 }