限制帖子图片数量为9张

app/src/main/java/com/aiosman/ravenow/ui/post/NewPost.kt

@@ -435,7 +435,22 @@ fun AddImageGrid() {
     ) { uris ->
         if (uris.isNotEmpty()) {
             scope.launch {
-                for (uri in uris) {
+                val currentCount = model.imageList.size
+                val remainingSlots = 9 - currentCount
+                
+                if (remainingSlots <= 0) {
+                    Toast.makeText(context, "最多只能选择9张图片", Toast.LENGTH_SHORT).show()
+                    return@launch
+                }
+                
+                val urisToProcess = if (uris.size > remainingSlots) {
+                    Toast.makeText(context, "已选择${uris.size}张图片，但只能添加前${remainingSlots}张", Toast.LENGTH_SHORT).show()
+                    uris.take(remainingSlots)
+                } else {
+                    uris
+                }
+                
+                for (uri in urisToProcess) {
                     ImageItem.fromUri(context, uri.toString())?.let {
                         model.imageList += it
                     }
@@ -449,10 +464,14 @@ fun AddImageGrid() {
     ) { success ->
         if (success) {
             scope.launch {
+                if (model.imageList.size >= 9) {
+                    Toast.makeText(context, "最多只能选择9张图片", Toast.LENGTH_SHORT).show()
+                    return@launch
+                }
+                
                 ImageItem.fromUri(context, model.currentPhotoUri.toString())?.let {
                     model.imageList += it
                 }
-
             }
         }
     }
@@ -502,6 +521,8 @@ fun AddImageGrid() {
             }
         }
     }
+    val canAddMoreImages = model.imageList.size < 9
+    
     LazyVerticalGrid(
         columns = GridCells.Fixed(5),
         contentPadding = PaddingValues(8.dp),
@@ -511,6 +532,7 @@ fun AddImageGrid() {
         horizontalArrangement = Arrangement.spacedBy(8.dp),
         verticalArrangement = Arrangement.spacedBy(8.dp)
     ) {
+        if (canAddMoreImages) {
             item {
                 Box(
                     modifier = Modifier
@@ -519,7 +541,11 @@ fun AddImageGrid() {
                         .clip(RoundedCornerShape(16.dp)) // 设置圆角
                         .background(AppColors.basicMain) // 设置背景色
                         .noRippleClickable {
+                            if (model.imageList.size < 9) {
                                 pickImagesLauncher.launch("image/*")
+                            } else {
+                                Toast.makeText(context, "最多只能选择9张图片", Toast.LENGTH_SHORT).show()
+                            }
                         },
                 ) {
                     Icon(
@@ -541,6 +567,7 @@ fun AddImageGrid() {
                         .clip(RoundedCornerShape(16.dp)) // 设置圆角
                         .background(AppColors.basicMain) // 设置背景色
                         .noRippleClickable {
+                            if (model.imageList.size < 9) {
                                 val photoFile = File(context.cacheDir, "photo.jpg")
                                 val photoUri: Uri = FileProvider.getUriForFile(
                                     context,
@@ -549,6 +576,9 @@ fun AddImageGrid() {
                                 )
                                 model.currentPhotoUri = photoUri
                                 takePictureLauncher.launch(photoUri)
+                            } else {
+                                Toast.makeText(context, "最多只能选择9张图片", Toast.LENGTH_SHORT).show()
+                            }
                         },
                 ) {
                     Icon(
@@ -563,4 +593,5 @@ fun AddImageGrid() {
             }
         }
     }
+}