对齐旅拍相册详情页 Android UI，并修复网格预览与布局问题。

重构相册详情为信息卡片、Tab 筛选、排序、批量删除与底部上传栏；修复网格重叠、禁用按钮蒙层，并支持点击预览大图。同步扩展素材列表 API 与 ViewModel 分页逻辑，并优化有线传图缩略图与传输性能。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkanTests/TravelAlbum/TravelAlbumViewModelTests.swift

@@ -81,6 +81,139 @@ final class TravelAlbumViewModelTests: XCTestCase {
         )
         XCTAssertTrue(name.hasSuffix("003"))
     }
+
+    /// 测试切换已购 Tab 时携带 is_purchased 参数并重置选择状态。
+    func testDetailSelectPurchasedTabUsesPurchasedFilter() async {
+        let viewModel = TravelAlbumDetailViewModel()
+        let api = MockTravelAlbumDetailAPI()
+
+        await viewModel.refreshAll(api: api, albumID: 8)
+        viewModel.isSelectionMode = true
+        viewModel.selectedMaterialIDs = [1]
+
+        await viewModel.selectTab(TravelAlbumDetailViewModel.tabPurchased, api: api)
+
+        XCTAssertEqual(viewModel.selectedTab, TravelAlbumDetailViewModel.tabPurchased)
+        XCTAssertFalse(viewModel.isSelectionMode)
+        XCTAssertTrue(viewModel.selectedMaterialIDs.isEmpty)
+        XCTAssertEqual(api.materialListCalls.last?.isPurchased, 1)
+    }
+
+    /// 测试排序变更触发重载。
+    func testDetailSetOrderByReloadsMaterials() async {
+        let viewModel = TravelAlbumDetailViewModel()
+        let api = MockTravelAlbumDetailAPI()
+
+        await viewModel.refreshAll(api: api, albumID: 8)
+        let initialCount = api.materialListCalls.count
+
+        await viewModel.setOrderBy(3, api: api)
+
+        XCTAssertEqual(viewModel.orderBy, 3)
+        XCTAssertGreaterThan(api.materialListCalls.count, initialCount)
+        XCTAssertEqual(api.materialListCalls.last?.orderBy, 3)
+    }
+
+    /// 测试仅未购买素材可选中。
+    func testDetailToggleSelectionRejectsPurchasedMaterial() async {
+        let viewModel = TravelAlbumDetailViewModel()
+        viewModel.isSelectionMode = true
+
+        let purchased = try! decodeMaterial(id: 2, status: 2)
+        viewModel.toggleMaterialSelection(purchased)
+        XCTAssertTrue(viewModel.selectedMaterialIDs.isEmpty)
+        XCTAssertEqual(viewModel.errorMessage, "仅未购买素材可删除")
+
+        let unpurchased = try! decodeMaterial(id: 3, status: TravelAlbumDetailViewModel.materialStatusUnpurchased)
+        viewModel.toggleMaterialSelection(unpurchased)
+        XCTAssertEqual(viewModel.selectedMaterialIDs, [3])
+    }
+
+    /// 测试批量删除按顺序调用 API。
+    func testDetailConfirmDeleteSelectedMaterialsDeletesInOrder() async {
+        let viewModel = TravelAlbumDetailViewModel()
+        let api = MockTravelAlbumDetailAPI()
+        viewModel.selectedMaterialIDs = [11, 12, 13]
+
+        let success = await viewModel.confirmDeleteSelectedMaterials(api: api)
+
+        XCTAssertTrue(success)
+        XCTAssertEqual(Set(api.deletedMaterialIDs), Set([11, 12, 13]))
+        XCTAssertFalse(viewModel.isSelectionMode)
+        XCTAssertTrue(viewModel.selectedMaterialIDs.isEmpty)
+    }
+
+    /// 测试全部 Tab 下 allPhotoCount 与 total 同步。
+    func testDetailAllPhotoCountSyncsWithTotalOnAllTab() async {
+        let viewModel = TravelAlbumDetailViewModel()
+        let api = MockTravelAlbumDetailAPI(materialTotal: 42)
+
+        await viewModel.refreshAll(api: api, albumID: 8)
+
+        XCTAssertEqual(viewModel.allPhotoCount, 42)
+    }
+}
+
+private func decodeMaterial(id: Int, status: Int) throws -> TravelAlbumMaterial {
+    let json = """
+    {"code":100000,"msg":"success","data":{"id":"\(id)","user_equity_travel_id":"8","status":"\(status)","order_number":"","user_id":"100","file_name":"DSC.JPG","file_type":"2","file_url":"https://cdn/a.jpg","file_size":"2048","cover_url":"","is_purchased":"0","created_at":"2026","updated_at":"2026"}}
+    """
+    let data = Data(json.utf8)
+    let envelope = try JSONDecoder().decode(APIEnvelope<TravelAlbumMaterial>.self, from: data)
+    return try XCTUnwrap(envelope.data)
+}
+
+@MainActor
+private final class MockTravelAlbumDetailAPI: TravelAlbumServing {
+    struct MaterialListCall {
+        let orderBy: Int
+        let isPurchased: Int?
+        let page: Int
+    }
+
+    var materialTotal: Int
+    var materialListCalls: [MaterialListCall] = []
+    var deletedMaterialIDs: [Int] = []
+
+    init(materialTotal: Int = 5) {
+        self.materialTotal = materialTotal
+    }
+
+    func availableOrders() async throws -> [TravelAlbumAvailableOrder] { [] }
+    func createAlbum(_ request: TravelAlbumCreateRequest) async throws -> TravelAlbumCreateResponse {
+        TravelAlbumCreateResponse(id: 1)
+    }
+    func albumList(page: Int, pageSize: Int) async throws -> ListPayload<TravelAlbumItem> {
+        ListPayload(total: 0, list: [])
+    }
+    func albumInfo(id: Int) async throws -> TravelAlbumItem {
+        let data = Data(
+            #"{"code":100000,"msg":"success","data":{"id":"8","store_user_id":"1","name":"2026-06-30-001","type":"1","order_number":"","material_num":"3","material_price":"990","material_package_price":"9900","photo_price":"0","cover_url":"","user_id":"100","status":"1","created_at":"2026-06-30","updated_at":"2026-06-30","user":{"id":"200","phone":"13800138000"}}}"#.utf8
+        )
+        let envelope = try JSONDecoder().decode(APIEnvelope<TravelAlbumItem>.self, from: data)
+        return try XCTUnwrap(envelope.data)
+    }
+    func editAlbum(_ request: TravelAlbumEditRequest) async throws {}
+    func deleteAlbum(_ request: TravelAlbumDeleteRequest) async throws {}
+    func materialList(
+        userEquityTravelId: Int,
+        page: Int,
+        pageSize: Int,
+        orderBy: Int,
+        isPurchased: Int?
+    ) async throws -> ListPayload<TravelAlbumMaterial> {
+        materialListCalls.append(MaterialListCall(orderBy: orderBy, isPurchased: isPurchased, page: page))
+        return ListPayload(total: materialTotal, list: [])
+    }
+    func uploadMaterial(_ request: TravelAlbumUploadMaterialRequest) async throws -> TravelAlbumMaterial {
+        throw APIError.emptyData
+    }
+    func deleteMaterial(_ request: TravelAlbumDeleteMaterialRequest) async throws {
+        deletedMaterialIDs.append(request.id)
+    }
+    func mpCode(id: Int) async throws -> TravelAlbumMpCodeResponse {
+        TravelAlbumMpCodeResponse(mpCodeOssURL: "")
+    }
 }
 
 @MainActor
@@ -108,7 +241,13 @@ private final class MockTravelAlbumAPI: TravelAlbumServing {
 
     func deleteAlbum(_ request: TravelAlbumDeleteRequest) async throws {}
 
-    func materialList(userEquityTravelId: Int, page: Int, pageSize: Int) async throws -> ListPayload<TravelAlbumMaterial> {
+    func materialList(
+        userEquityTravelId: Int,
+        page: Int,
+        pageSize: Int,
+        orderBy: Int,
+        isPurchased: Int?
+    ) async throws -> ListPayload<TravelAlbumMaterial> {
         ListPayload(total: 0, list: [])
     }