UI: unify Model Card components

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/components/ModelCard.kt

@@ -1,152 +0,0 @@
-package com.example.llama.revamp.ui.components
-
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Info
-import androidx.compose.material.icons.filled.PlayArrow
-import androidx.compose.material3.Card
-import androidx.compose.material3.CardDefaults
-import androidx.compose.material3.Checkbox
-import androidx.compose.material3.Icon
-import androidx.compose.material3.IconButton
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.unit.dp
-import com.example.llama.revamp.data.model.ModelInfo
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
-
-/**
- * Reusable card component for displaying model information.
- * Can be configured for selection mode or normal display mode.
- */
-@Composable
-fun ModelCard(
-    model: ModelInfo,
-    onClick: () -> Unit,
-    modifier: Modifier = Modifier,
-    isSelected: Boolean? = null,  // `null`: not in selection mode, otherwise true/false
-    actionButton: @Composable (() -> Unit)? = null
-) {
-    Card(
-        modifier = modifier
-            .fillMaxWidth()
-            .clickable(onClick = onClick),
-        colors = when {
-            isSelected == true -> CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.primaryContainer)
-            isSelected == false -> CardDefaults.cardColors()
-            else -> CardDefaults.cardColors()  // Not in selection mode
-        },
-        elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
-    ) {
-        Row(
-            modifier = Modifier.padding(16.dp),
-            verticalAlignment = Alignment.CenterVertically
-        ) {
-            // Show checkbox if in selection mode
-            if (isSelected != null) {
-                Checkbox(
-                    checked = isSelected,
-                    onCheckedChange = { onClick() },
-                    modifier = Modifier.padding(end = 8.dp)
-                )
-            }
-
-            // Model info
-            Column(modifier = Modifier.weight(1f)) {
-                Text(
-                    text = model.name,
-                    style = MaterialTheme.typography.titleMedium
-                )
-
-                Spacer(modifier = Modifier.height(4.dp))
-
-                // Model details row (parameters, quantization, size)
-                Row {
-                    if (model.parameters != null) {
-                        Text(
-                            text = model.parameters,
-                            style = MaterialTheme.typography.bodyMedium,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant
-                        )
-                    }
-
-                    if (model.quantization != null) {
-                        Text(
-                            text = " • ${model.quantization}",
-                            style = MaterialTheme.typography.bodyMedium,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant
-                        )
-                    }
-
-                    Text(
-                        text = " • ${model.formattedSize}",
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant
-                    )
-                }
-
-                Spacer(modifier = Modifier.height(4.dp))
-
-                // Context length
-                if (model.contextLength != null) {
-                    Text(
-                        text = "Context Length: ${model.contextLength}",
-                        style = MaterialTheme.typography.bodySmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant
-                    )
-                }
-
-                // Last used date
-                model.lastUsed?.let { lastUsed ->
-                    val dateFormat = SimpleDateFormat("MMM d, yyyy", Locale.getDefault())
-                    Text(
-                        text = "Last used: ${dateFormat.format(Date(lastUsed))}",
-                        style = MaterialTheme.typography.bodySmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant
-                    )
-                }
-            }
-
-            // Custom action button or built-in ones
-            actionButton?.invoke() ?: Spacer(modifier = Modifier.width(8.dp))
-        }
-    }
-}
-
-/**
- * Predefined action buttons for ModelCard
- */
-object ModelCardActions {
-    @Composable
-    fun PlayButton(onClick: () -> Unit) {
-        IconButton(onClick = onClick) {
-            Icon(
-                imageVector = Icons.Default.PlayArrow,
-                contentDescription = "Select model",
-                tint = MaterialTheme.colorScheme.primary
-            )
-        }
-    }
-
-    @Composable
-    fun InfoButton(onClick: () -> Unit) {
-        IconButton(onClick = onClick) {
-            Icon(
-                imageVector = Icons.Default.Info,
-                contentDescription = "Model details"
-            )
-        }
-    }
-}

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/components/ModelCards.kt

@@ -0,0 +1,249 @@
+package com.example.llama.revamp.ui.components
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.Checkbox
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.example.llama.revamp.data.model.ModelInfo
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+/**
+ * Standard model card for selection lists
+ */
+@Composable
+fun ModelCard(
+    model: ModelInfo,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier,
+    isSelected: Boolean? = null,
+    actionButton: @Composable (() -> Unit)? = null
+) {
+    Card(
+        modifier = modifier
+            .fillMaxWidth()
+            .clickable(onClick = onClick),
+        colors = when {
+            isSelected == true -> CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.primaryContainer)
+            isSelected == false -> CardDefaults.cardColors()
+            else -> CardDefaults.cardColors()  // Not in selection mode
+        },
+        elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
+    ) {
+        Row(
+            modifier = Modifier.padding(16.dp),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            // Show checkbox if in selection mode
+            if (isSelected != null) {
+                Checkbox(
+                    checked = isSelected,
+                    onCheckedChange = { onClick() },
+                    modifier = Modifier.padding(end = 8.dp)
+                )
+            }
+
+            // Model info
+            ModelInfoContent(
+                model = model,
+                modifier = Modifier.weight(1f),
+                contentPadding = PaddingValues(0.dp)
+            )
+
+            // Custom action button or built-in ones
+            actionButton?.invoke() ?: Spacer(modifier = Modifier.width(8.dp))
+        }
+    }
+}
+
+/**
+ * Expandable card that shows model info and system prompt
+ */
+@Composable
+fun ModelCardWithSystemPrompt(
+    model: ModelInfo,
+    systemPrompt: String?,
+    modifier: Modifier = Modifier,
+    initiallyExpanded: Boolean = false
+) {
+    var expanded by remember { mutableStateOf(initiallyExpanded) }
+
+    Card(
+        modifier = modifier
+            .fillMaxWidth(),
+        onClick = {
+            if (systemPrompt != null) {
+                expanded = !expanded
+            }
+        }
+    ) {
+        Column(
+            modifier = Modifier.padding(16.dp)
+        ) {
+            // Model info section
+            ModelInfoContent(
+                model = model,
+                contentPadding = PaddingValues(0.dp)
+            )
+
+            // Add divider between model info and system prompt
+            if (!systemPrompt.isNullOrBlank()) {
+                HorizontalDivider(modifier = Modifier.padding(vertical = 8.dp))
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    Text(
+                        text = "System Prompt",
+                        style = MaterialTheme.typography.titleMedium,
+                        modifier = Modifier.weight(1f)
+                    )
+
+                    Text(
+                        text = if (expanded) "Hide" else "Show",
+                        style = MaterialTheme.typography.labelMedium,
+                        color = MaterialTheme.colorScheme.primary
+                    )
+                }
+
+                AnimatedVisibility(
+                    visible = expanded,
+                    enter = fadeIn() + expandVertically(),
+                    exit = fadeOut() + shrinkVertically()
+                ) {
+                    Text(
+                        text = systemPrompt,
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(top = 8.dp)
+                    )
+                }
+            }
+        }
+    }
+}
+
+
+/**
+ * Core model info display component that can be used by other card variants
+ */
+@Composable
+private fun ModelInfoContent(
+    model: ModelInfo,
+    modifier: Modifier = Modifier,
+    contentPadding: PaddingValues = PaddingValues(16.dp)
+) {
+    Column(modifier = modifier.padding(contentPadding)) {
+        Text(
+            text = model.name,
+            style = MaterialTheme.typography.titleMedium
+        )
+
+        Spacer(modifier = Modifier.height(4.dp))
+
+        // Model details row (parameters, quantization, size)
+        Row {
+            if (model.parameters != null) {
+                Text(
+                    text = model.parameters,
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+
+            if (model.quantization != null) {
+                Text(
+                    text = " • ${model.quantization}",
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+
+            Text(
+                text = " • ${model.formattedSize}",
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+
+        Spacer(modifier = Modifier.height(4.dp))
+
+        // Context length
+        if (model.contextLength != null) {
+            Text(
+                text = "Context Length: ${model.contextLength}",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+
+        // Last used date
+        model.lastUsed?.let { lastUsed ->
+            val dateFormat = SimpleDateFormat("MMM d, yyyy", Locale.getDefault())
+            Text(
+                text = "Last used: ${dateFormat.format(Date(lastUsed))}",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+        }
+    }
+}
+
+/**
+ * Predefined action buttons for ModelCard
+ */
+object ModelCardActions {
+    @Composable
+    fun PlayButton(onClick: () -> Unit) {
+        IconButton(onClick = onClick) {
+            Icon(
+                imageVector = Icons.Default.PlayArrow,
+                contentDescription = "Select model",
+                tint = MaterialTheme.colorScheme.primary
+            )
+        }
+    }
+
+    @Composable
+    fun InfoButton(onClick: () -> Unit) {
+        IconButton(onClick = onClick) {
+            Icon(
+                imageVector = Icons.Default.Info,
+                contentDescription = "Model details"
+            )
+        }
+    }
+}

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/BenchmarkScreen.kt

@@ -24,6 +24,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.example.llama.revamp.engine.InferenceEngine
+import com.example.llama.revamp.ui.components.ModelCard
 import com.example.llama.revamp.ui.components.PerformanceAppScaffold
 import com.example.llama.revamp.ui.theme.MonospacedTextStyle
 import com.example.llama.revamp.viewmodel.BenchmarkViewModel
@@ -54,28 +55,14 @@ fun BenchmarkScreen(
                 .padding(16.dp)
                 .verticalScroll(rememberScrollState())
         ) {
-            // Model info
+            // Selected model card
             selectedModel?.let { model ->
-                Card(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(bottom = 16.dp)
-                ) {
-                    Column(
-                        modifier = Modifier.padding(16.dp)
-                    ) {
-                        Text(
-                            text = model.name,
-                            style = MaterialTheme.typography.titleLarge
+                ModelCard(
+                    model = model,
+                    onClick = { /* No action on click */ },
+                    modifier = Modifier.padding(bottom = 16.dp),
+                    isSelected = null
                 )
-
-                        Text(
-                            text = "${model.parameters} [${model.quantization}]",
-                            style = MaterialTheme.typography.bodyMedium,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant
-                        )
-                    }
-                }
             }
 
             // Benchmark results or loading indicator

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/ConversationScreen.kt

@@ -63,6 +63,7 @@ import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.compose.LocalLifecycleOwner
 import com.example.llama.revamp.data.model.ModelInfo
 import com.example.llama.revamp.engine.InferenceEngine
+import com.example.llama.revamp.ui.components.ModelCardWithSystemPrompt
 import com.example.llama.revamp.ui.components.PerformanceAppScaffold
 import com.example.llama.revamp.viewmodel.ConversationViewModel
 import com.example.llama.revamp.viewmodel.Message
@@ -162,89 +163,6 @@ fun ConversationScreen(
     }
 }
 
-@Composable
-private fun ModelCardWithSystemPrompt(
-    selectedModel: ModelInfo,
-    systemPrompt: String?
-) {
-    var expanded by remember { mutableStateOf(false) }
-
-    Card(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(horizontal = 16.dp, vertical = 8.dp),
-        onClick = {
-            expanded = !expanded
-        }
-    ) {
-        Column(
-            modifier = Modifier.padding(16.dp)
-        ) {
-            // Show model info first
-            Text(
-                text = selectedModel.name,
-                style = MaterialTheme.typography.titleMedium
-            )
-
-            Text(
-                text = "${selectedModel.parameters ?: ""} ${selectedModel.quantization ?: ""} • ${selectedModel.formattedSize}",
-                style = MaterialTheme.typography.bodyMedium,
-                color = MaterialTheme.colorScheme.onSurfaceVariant
-            )
-
-            if (selectedModel.contextLength != null) {
-                Text(
-                    text = "Context: ${selectedModel.contextLength}",
-                    style = MaterialTheme.typography.bodySmall,
-                    color = MaterialTheme.colorScheme.onSurfaceVariant
-                )
-            }
-
-            // Add divider between model info and system prompt
-            if (!systemPrompt.isNullOrBlank()) {
-                HorizontalDivider(
-                    modifier = Modifier.padding(vertical = 8.dp)
-                )
-            }
-
-            // Only show system prompt section if one exists
-            if (!systemPrompt.isNullOrBlank()) {
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Text(
-                        text = "System Prompt",
-                        style = MaterialTheme.typography.titleMedium,
-                        modifier = Modifier.weight(1f)
-                    )
-
-                    Text(
-                        text = if (expanded) "Hide" else "Show",
-                        style = MaterialTheme.typography.labelMedium,
-                        color = MaterialTheme.colorScheme.primary
-                    )
-                }
-
-                AnimatedVisibility(
-                    visible = expanded,
-                    enter = fadeIn() + expandVertically(),
-                    exit = fadeOut() + shrinkVertically()
-                ) {
-                    Text(
-                        text = systemPrompt,
-                        style = MaterialTheme.typography.bodySmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .padding(top = 8.dp)
-                    )
-                }
-            }
-        }
-    }
-}
-
 @Composable
 fun ConversationMessageList(
     messages: List<Message>,

examples/llama.android/app/src/main/java/com/example/llama/revamp/ui/screens/ModelLoadingScreen.kt

@@ -131,19 +131,13 @@ fun ModelLoadingScreen(
         ) {
             // Selected model card
             selectedModel?.let { model ->
-                Card(
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(bottom = 16.dp)
-                ) {
                 ModelCard(
                     model = model,
-                        onClick = { /* TODO-han.yin: expand & shrink */ },
-                        isSelected = null,
-                        modifier = Modifier.padding(vertical = 0.dp)
+                    onClick = { /* No action on click */ },
+                    modifier = Modifier.padding(bottom = 16.dp),
+                    isSelected = null
                 )
             }
-            }
 
             // Benchmark card
             Card(