diff --git a/composeApp/src/androidMain/AndroidManifest.xml b/composeApp/src/androidMain/AndroidManifest.xml
index c6e9d43..be03643 100644
--- a/composeApp/src/androidMain/AndroidManifest.xml
+++ b/composeApp/src/androidMain/AndroidManifest.xml
@@ -7,6 +7,7 @@
             android:allowBackup="true"
             android:icon="@mipmap/ic_launcher"
             android:label="@string/app_name"
+            android:name=".ComfyApp"
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
             android:usesCleartextTraffic="true"
diff --git a/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/ComfyApp.kt b/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/ComfyApp.kt
new file mode 100644
index 0000000..2657e51
--- /dev/null
+++ b/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/ComfyApp.kt
@@ -0,0 +1,17 @@
+package moe.uni.comfy.comfyuikmp
+
+import android.annotation.SuppressLint
+import android.app.Application
+import android.content.Context
+
+class ComfyApp: Application() {
+    companion object{
+        @SuppressLint("StaticFieldLeak")
+        lateinit var context: Context
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        context = applicationContext
+    }
+}
\ No newline at end of file
diff --git a/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.android.kt b/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.android.kt
new file mode 100644
index 0000000..f9a9448
--- /dev/null
+++ b/composeApp/src/androidMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.android.kt
@@ -0,0 +1,58 @@
+package moe.uni.comfy.comfyuikmp.util
+
+import android.content.ContentValues
+import android.graphics.Bitmap
+import android.os.Build
+import android.os.Environment
+import android.provider.MediaStore
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.asAndroidBitmap
+import moe.uni.comfy.comfyuikmp.ComfyApp
+import java.io.File
+
+
+actual suspend fun saveImageToLocal(image: ImageBitmap, name: String): Result<Boolean> {
+    val bitmap = image.asAndroidBitmap()
+
+    val imagesCollection =
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            MediaStore.Images.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY)
+        } else {
+            MediaStore.Images.Media.EXTERNAL_CONTENT_URI
+        }
+
+    val contentValues = ContentValues().apply {
+        put(MediaStore.Images.Media.DISPLAY_NAME, "$name.png")
+        put(MediaStore.Images.Media.MIME_TYPE, "image/png")
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            put(MediaStore.Images.Media.RELATIVE_PATH, "Pictures/ComfyApp")
+            put(MediaStore.Images.Media.IS_PENDING, 1)
+        }
+    }
+
+    val resolver = ComfyApp.context.contentResolver
+    val uri = resolver.insert(imagesCollection, contentValues)
+    uri?.let {
+        try {
+            resolver.openOutputStream(uri)?.use { out ->
+                bitmap.compress(Bitmap.CompressFormat.PNG, 100, out)
+            } ?: throw kotlinx.io.IOException("OpenOutputStream returned null")
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                contentValues.clear()
+                contentValues.put(MediaStore.Images.Media.IS_PENDING, 0)
+                resolver.update(uri, contentValues, null, null)
+            }
+            return Result.success(true)
+        } catch (e: Exception) {
+            // 出错时删除占位条目，避免相册里出现空文件
+            runCatching { resolver.delete(uri, null, null) }
+            e.printStackTrace()
+            return Result.failure(e)
+        }
+
+    }
+    return Result.failure(kotlinx.io.IOException("Failed to create new MediaStore record."))
+
+
+}
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/model/ComfyModels.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/model/ComfyModels.kt
index 09a3440..ea468f6 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/model/ComfyModels.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/model/ComfyModels.kt
@@ -4,6 +4,11 @@ import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.JsonElement
 
+
+object NodeType{
+    const val KSampler = "KSampler"
+}
+
 /**
  * 通用 ComfyUI 节点模型，尽量保持结构宽松以兼容不同节点类型与输入形态。
  */
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/repository/WorkflowRepository.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/repository/WorkflowRepository.kt
index 961f59f..55b03e4 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/repository/WorkflowRepository.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/data/repository/WorkflowRepository.kt
@@ -6,12 +6,14 @@ import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import moe.uni.comfy.comfyuikmp.data.model.ComfyPrompt
 import moe.uni.comfy.comfyuikmp.data.settings.KeyValueStore
+import moe.uni.comfy.comfyuikmp.data.model.ImageRef
 
 @Serializable
 data class WorkflowItem(
     val id: String,
     val name: String,
-    val prompt: ComfyPrompt
+    val prompt: ComfyPrompt,
+    val cover: ImageRef? = null
 )
 
 class WorkflowRepository {
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppRoot.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppRoot.kt
index 7c19759..232a906 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppRoot.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppRoot.kt
@@ -1,16 +1,21 @@
 package moe.uni.comfy.comfyuikmp.ui
 
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.material.icons.filled.History
+import androidx.compose.material.icons.filled.Save
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import kotlinx.coroutines.launch
 import kotlinx.serialization.json.JsonPrimitive
+import moe.uni.comfy.comfyuikmp.data.model.NodeType
 import moe.uni.comfy.comfyuikmp.di.AppGraph
 import moe.uni.comfy.comfyuikmp.ui.gallery.GalleryScreen
 import moe.uni.comfy.comfyuikmp.ui.generate.GenerateScreen
@@ -21,6 +26,7 @@ import moe.uni.comfy.comfyuikmp.ui.navigation.rememberNavController
 import moe.uni.comfy.comfyuikmp.ui.settings.SettingsScreen
 import moe.uni.comfy.comfyuikmp.ui.view.ViewScreen
 import moe.uni.comfy.comfyuikmp.util.mainViewModelFactory
+import moe.uni.comfy.comfyuikmp.util.saveImageToLocal
 import kotlin.random.Random
 import kotlin.time.Clock
 import kotlin.time.ExperimentalTime
@@ -31,6 +37,7 @@ fun AppRoot(viewModel: AppViewModel = viewModel(factory = mainViewModelFactory))
     val hasSaved = remember { AppGraph.workflows.list().isNotEmpty() }
     val startDest = if (hasSaved) Dest.Home else Dest.Settings
     val navController = rememberNavController(startDest)
+
     MaterialTheme {
         val snackbar = remember { SnackbarHostState() }
         val scope = rememberCoroutineScope()
@@ -72,11 +79,29 @@ fun AppRoot(viewModel: AppViewModel = viewModel(factory = mainViewModelFactory))
                     },
                     actions = {
                         if (current == Dest.Generate) {
+                            if (uiState.image!=null){
+                                Icon(Icons.Filled.Save, contentDescription = null, modifier = Modifier.clickable{
+                                    uiState.image?.let {
+                                        scope.launch {
+                                            val result = saveImageToLocal(it,"${uiState.workflowName}_${Random.nextInt()}.png")
+
+                                            if (result.isSuccess){
+                                                snackbar.showSnackbar("保存成功")
+                                            }else{
+                                                snackbar.showSnackbar(result.exceptionOrNull()?.message?:"保存失败")
+                                            }
+                                        }
+                                    }
+                                })
+                                Spacer(Modifier.size(16.dp))
+                            }
                             Icon(
                                 Icons.Filled.History,
                                 contentDescription = null,
                                 modifier = Modifier.clickable { navController.navigate(Dest.Gallery) }
                             )
+                            Spacer(Modifier.size(16.dp))
+
                         }
                     }
                 )
@@ -90,7 +115,7 @@ fun AppRoot(viewModel: AppViewModel = viewModel(factory = mainViewModelFactory))
                             uiState.prompt.let { p ->
                                 scope.launch {
                                     if (uiState.useRandom) {
-                                        p.values.find { it.classType == "KSampler" }?.let {
+                                        p.values.find { it.classType == NodeType.KSampler }?.let {
                                             val inputs = it.inputs.toMutableMap()
                                             inputs["seed"] = JsonPrimitive(Random.nextInt(0, Int.MAX_VALUE))
                                             it.inputs = inputs
@@ -145,7 +170,8 @@ fun AppRoot(viewModel: AppViewModel = viewModel(factory = mainViewModelFactory))
                             viewModel.useRandomSeed(it)
 
                         },
-                        onOpenImage = { ref -> viewModel.openImage(ref) }
+                        onOpenImage = { ref -> viewModel.openImage(ref) },
+                        onSetCover = {  }
                     )
                 }
 
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppViewModel.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppViewModel.kt
index 1019ffa..971e8a8 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppViewModel.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/AppViewModel.kt
@@ -23,6 +23,7 @@ import moe.uni.comfy.comfyuikmp.data.network.createDefaultHttpClient
 import moe.uni.comfy.comfyuikmp.data.repository.WorkflowItem
 import moe.uni.comfy.comfyuikmp.di.AppGraph
 import moe.uni.comfy.comfyuikmp.util.decodeImage
+import moe.uni.comfy.comfyuikmp.util.saveImageToLocal
 
 class AppViewModel : ViewModel() {
     private val _uiState = MutableStateFlow(AppUiState())
@@ -145,5 +146,5 @@ data class AppUiState(
     val image: ImageBitmap? = null,
     val progress:ProgressUpdate = ProgressUpdate(0f, ""),
     val prompt: ComfyPrompt = emptyMap(),
-    val useRandom: Boolean = false
+    val useRandom: Boolean = true
 )
\ No newline at end of file
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/gallery/GalleryScreen.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/gallery/GalleryScreen.kt
index 6c9f4f1..0204a7f 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/gallery/GalleryScreen.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/gallery/GalleryScreen.kt
@@ -10,6 +10,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
 import androidx.compose.material3.Card
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -23,6 +24,12 @@ import coil3.compose.AsyncImage
 import moe.uni.comfy.comfyuikmp.di.AppGraph
 import moe.uni.comfy.comfyuikmp.ui.AppViewModel
 import moe.uni.comfy.comfyuikmp.ui.navigation.Dest
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import moe.uni.comfy.comfyuikmp.util.buildImageUrl
 
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
@@ -42,23 +49,12 @@ fun GalleryScreen(contentPadding: PaddingValues, viewModel: AppViewModel) {
 
     LazyColumn(contentPadding = contentPadding, modifier = Modifier.padding(horizontal = 16.dp)) {
         items(history, key = { it.filename }) { img ->
-            val url = buildString {
-                append(base)
-                append("/view?filename=")
-                append(img.filename)
-                img.subfolder?.let {
-                    append("&subfolder=")
-                    append(it)
-                }
-                img.type?.let {
-                    append("&type=")
-                    append(it)
-                }
-            }
+            val url = buildImageUrl(img)
 
-            Card(modifier = Modifier.fillMaxWidth().aspectRatio(3f / 4f).clickable {
-                viewModel.openImage(img)
-            }) {
+
+            Card(modifier = Modifier.fillMaxWidth().aspectRatio(3f / 4f).combinedClickable(
+                onClick = { viewModel.openImage(img) }
+            )) {
                 AsyncImage(
                     model = url,
                     contentDescription = null,
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/generate/GenerateScreen.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/generate/GenerateScreen.kt
index 89a5007..c077d23 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/generate/GenerateScreen.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/generate/GenerateScreen.kt
@@ -26,6 +26,7 @@ import androidx.compose.material3.Switch
 import androidx.compose.material3.rememberBottomSheetScaffoldState
 import androidx.compose.ui.Alignment
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
 import kotlinx.serialization.json.JsonElement
 import kotlinx.serialization.json.JsonPrimitive
 import kotlinx.serialization.json.booleanOrNull
@@ -36,6 +37,9 @@ import moe.uni.comfy.comfyuikmp.data.model.updateNodeStringInput
 import moe.uni.comfy.comfyuikmp.data.model.updateNodePrimitiveInput
 import moe.uni.comfy.comfyuikmp.data.network.ProgressUpdate
 import moe.uni.comfy.comfyuikmp.data.model.ImageRef
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import moe.uni.comfy.comfyuikmp.data.model.NodeType
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -49,6 +53,7 @@ fun GenerateScreen(
     onPromptChange: (ComfyPrompt) -> Unit,
     onRandomSwitchChange: (Boolean) -> Unit,
     onOpenImage: (ImageRef) -> Unit = {},
+    onSetCover: (ImageRef) -> Unit = {},
 ) {
     val state = rememberBottomSheetScaffoldState()
     Scaffold(modifier = Modifier.padding(contentPadding)) {
@@ -141,7 +146,8 @@ fun GenerateScreen(
                                         )
 
                                         //KSampler
-                                        if (node.classType == "KSampler" && key.equals("seed", ignoreCase = true)) {
+                                        if (node.classType == NodeType.KSampler && key.equals("seed", ignoreCase = true)) {
+                                            inputEnable = !useRandom
                                             Row(modifier = Modifier.padding(top = 8.dp)) {
                                                 Spacer(Modifier.width(8.dp))
                                                 Switch(useRandom, onCheckedChange = {
@@ -189,6 +195,7 @@ fun GenerateScreen(
                         Alignment.Center))
                 }
 
+                var showSetCover by remember { mutableStateOf(false) }
                 if (latestImage != null) {
                     if (latestImageRef != null) {
                         Image(
@@ -197,7 +204,10 @@ fun GenerateScreen(
                             modifier = Modifier
                                 .fillMaxWidth()
                                 .padding(top = 32.dp)
-                                .clickable { onOpenImage(latestImageRef) }
+                                .combinedClickable(
+                                    onClick = { onOpenImage(latestImageRef) },
+                                    onLongClick = { showSetCover = true }
+                                )
                         )
                     } else {
                         Image(
@@ -207,6 +217,21 @@ fun GenerateScreen(
                         )
                     }
                 }
+
+                if (showSetCover && latestImageRef != null) {
+                    AlertDialog(
+                        onDismissRequest = { showSetCover = false },
+                        confirmButton = {
+                            Button(onClick = {
+                                onSetCover(latestImageRef)
+                                showSetCover = false
+                            }) { Text("设为封面") }
+                        },
+                        dismissButton = { Button(onClick = { showSetCover = false }) { Text("取消") } },
+                        title = { Text("设置封面") },
+                        text = { Text("将当前图片设为该工作流的封面？") }
+                    )
+                }
             }
         }
     }
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/home/HomeScreen.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/home/HomeScreen.kt
index 0d28b6b..c77d891 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/home/HomeScreen.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/home/HomeScreen.kt
@@ -6,12 +6,16 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -28,6 +32,10 @@ import androidx.compose.material3.Icon
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.Alignment
+import coil3.compose.AsyncImage
+import moe.uni.comfy.comfyuikmp.util.buildImageUrl
 
 
 @Composable
@@ -49,27 +57,48 @@ fun HomeScreen(
             ) { Text("新建/导入工作流", modifier = Modifier.padding(16.dp), style = MaterialTheme.typography.titleMedium) }
         }
         items(items) { w ->
-            Card(modifier = Modifier
-                .padding(horizontal = 16.dp, vertical = 8.dp)
-                .fillMaxWidth()
-                .clickable { onPick(w) }
+            Card(
+                modifier = Modifier
+                    .padding(horizontal = 16.dp, vertical = 8.dp)
+                    .fillMaxWidth()
+                    .clickable { onPick(w) },
+                elevation = CardDefaults.cardElevation(defaultElevation = 1.dp)
             ) {
-                Text(w.name, modifier = Modifier.padding(16.dp), style = MaterialTheme.typography.titleMedium)
-                Row(modifier = Modifier.padding(horizontal = 8.dp)) {
-                    IconButton(onClick = { renaming = w; newName = w.name }) { Icon(Icons.Filled.Edit, contentDescription = null,
-                        Modifier.size(24.dp)) }
-                    IconButton(onClick = { AppGraph.workflows.delete(w.id); items = repo.list() }) { Icon(Icons.Filled.Delete, contentDescription = null,
-                        Modifier.size(24.dp)) }
+                if (w.cover != null) {
+                    AsyncImage(
+                        model = buildImageUrl(w.cover),
+                        contentDescription = null,
+                        contentScale = ContentScale.Crop,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .aspectRatio(4f / 3f)
+                    )
+                } else {
+                    // 占位封面区域
+                    androidx.compose.foundation.layout.Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .aspectRatio(4f / 3f)
+                    )
+                }
+
+                Column(modifier = Modifier.padding(12.dp)) {
+                    Text(w.name, style = MaterialTheme.typography.titleMedium)
+                    Row(modifier = Modifier.padding(top = 4.dp), verticalAlignment = Alignment.CenterVertically) {
+                        IconButton(onClick = { renaming = w; newName = w.name }) { Icon(Icons.Filled.Edit, contentDescription = null,
+                            Modifier.size(24.dp)) }
+                        IconButton(onClick = { AppGraph.workflows.delete(w.id); items = repo.list() }) { Icon(Icons.Filled.Delete, contentDescription = null,
+                            Modifier.size(24.dp)) }
+                    }
                 }
             }
         }
     }
 
-    val r = renaming
-    if (r != null) {
+    if (renaming != null) {
         AlertDialog(onDismissRequest = { renaming = null }, confirmButton = {
             Button(onClick = {
-                AppGraph.workflows.rename(r.id, newName.ifBlank { r.name })
+                AppGraph.workflows.rename(renaming!!.id, newName.ifBlank { renaming!!.name })
                 items = repo.list()
                 renaming = null
             }) { Text("确定") }
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/view/ViewScreen.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/view/ViewScreen.kt
index fe0c6e2..09d5345 100644
--- a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/view/ViewScreen.kt
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/ui/view/ViewScreen.kt
@@ -19,24 +19,13 @@ import moe.uni.comfy.comfyuikmp.data.model.ImageRef
 import moe.uni.comfy.comfyuikmp.di.AppGraph
 import androidx.compose.foundation.layout.padding
 import androidx.compose.ui.geometry.Offset
+import moe.uni.comfy.comfyuikmp.util.buildImageUrl
 
 @Composable
 fun ViewScreen(ref: ImageRef, contentPadding: PaddingValues) {
     val base = AppGraph.settings.getBaseUrl() ?: ""
     val url = remember(ref, base) {
-        buildString {
-            append(base)
-            append("/view?filename=")
-            append(ref.filename)
-            ref.subfolder?.let {
-                append("&subfolder=")
-                append(it)
-            }
-            ref.type?.let {
-                append("&type=")
-                append(it)
-            }
-        }
+        buildImageUrl(ref)
     }
 
     val scaleState = remember { mutableFloatStateOf(1f) }
diff --git a/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUtils.kt b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUtils.kt
new file mode 100644
index 0000000..2aedc93
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUtils.kt
@@ -0,0 +1,27 @@
+package moe.uni.comfy.comfyuikmp.util
+
+import androidx.compose.ui.graphics.ImageBitmap
+import moe.uni.comfy.comfyuikmp.data.model.ImageRef
+import moe.uni.comfy.comfyuikmp.di.AppGraph
+
+fun buildImageUrl(ref: ImageRef): String {
+    val base = AppGraph.settings.getBaseUrl() ?: ""
+    return buildString {
+        append(base)
+        append("/view?filename=")
+        append(ref.filename)
+        ref.subfolder?.let {
+            append("&subfolder=")
+            append(it)
+        }
+        ref.type?.let {
+            append("&type=")
+            append(it)
+        }
+    }
+}
+
+expect suspend fun saveImageToLocal(image: ImageBitmap, name: String): Result<Boolean>
+
+
+
diff --git a/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/PlatformHttpClient.ios.kt b/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/PlatformHttpClient.ios.kt
index 31f2a0d..e9768a0 100644
--- a/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/PlatformHttpClient.ios.kt
+++ b/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/PlatformHttpClient.ios.kt
@@ -19,11 +19,6 @@ actual fun createPlatformHttpClient(configure: HttpClientConfig<*>.() -> Unit):
         install(UserAgent) {
             agent = "ComfyUIKMP-iOS"
         }
-        defaultRequest {
-            url {
-                protocol = URLProtocol.HTTP
-            }
-        }
         configure()
     }
 }
diff --git a/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.ios.kt b/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.ios.kt
new file mode 100644
index 0000000..2cafea3
--- /dev/null
+++ b/composeApp/src/iosMain/kotlin/moe/uni/comfy/comfyuikmp/util/ImageUrl.ios.kt
@@ -0,0 +1,8 @@
+package moe.uni.comfy.comfyuikmp.util
+
+import androidx.compose.ui.graphics.ImageBitmap
+import coil3.Bitmap
+
+actual suspend fun saveImageToLocal(image: ImageBitmap, name: String): Result<Boolean> {
+    return Result.failure(kotlinx.io.IOException("Failed to create new MediaStore record."))
+}
diff --git a/iosApp/iosApp/Info.plist b/iosApp/iosApp/Info.plist
index c7e6844..ffbb26f 100644
--- a/iosApp/iosApp/Info.plist
+++ b/iosApp/iosApp/Info.plist
@@ -4,12 +4,47 @@
 <dict>
 	<key>CADisableMinimumFrameDurationOnPhone</key>
 	<true/>
+	<key>NSLocalNetworkUsageDescription</key>
+	<string>需要访问 ComfyUI 服务以生成图像</string>
 	<key>NSAppTransportSecurity</key>
 	<dict>
 		<key>NSAllowsArbitraryLoads</key>
 		<true/>
+		<key>NSAllowsArbitraryLoadsInWebContent</key>
+		<true/>
 		<key>NSAllowsLocalNetworking</key>
 		<true/>
+		<key>NSExceptionDomains</key>
+		<dict>
+			<!-- 示例：开发期允许局域网 IP 和自签名证书。可按需添加具体域名/IP。 -->
+			<key>localhost</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+				<key>NSIncludesSubdomains</key>
+				<true/>
+			</dict>
+			<key>127.0.0.1</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+			<key>10.0.0.0/8</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+			<key>172.16.0.0/12</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+			<key>192.168.0.0/16</key>
+			<dict>
+				<key>NSExceptionAllowsInsecureHTTPLoads</key>
+				<true/>
+			</dict>
+		</dict>
 	</dict>
 </dict>
 </plist>