增加批量删除历史消息功能

Bark/AppDelegate.swift

@@ -17,8 +17,37 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
 
     var window: UIWindow?
     var syncEngine: SyncEngine?
+    func setupRealm() {
+        let groupUrl = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.bark")
+        let fileUrl = groupUrl?.appendingPathComponent("bark.realm")
+        let config = Realm.Configuration(
+            fileURL: fileUrl,
+            schemaVersion: 12,
+            migrationBlock: { migration, oldSchemaVersion in
+                // We haven’t migrated anything yet, so oldSchemaVersion == 0
+                if (oldSchemaVersion < 1) {
+                    // Nothing to do!
+                    // Realm will automatically detect new properties and removed properties
+                    // And will update the schema on disk automatically
+                }
+        })
+        // Tell Realm to use this new configuration object for the default Realm
+        Realm.Configuration.defaultConfiguration = config
 
+        //iCloud 同步
+        syncEngine = SyncEngine(objects: [
+            SyncObject(type: Message.self)
+        ], databaseScope: .private)
+
+        #if DEBUG
+        let realm = try? Realm()
+        print("message count: \(realm?.objects(Message.self).count ?? 0)")
+        #endif
+    }
+    
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        //必须在应用一开始就配置，否则应用可能提前在配置之前试用了 Realm() ，则会创建两个独立数据库。
+        setupRealm()
         
         self.window = UIWindow(frame: UIScreen.main.bounds)
         if #available(iOS 13.0, *) {
@@ -65,33 +94,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
         bar.backIndicatorImage = UIImage(named: "back")
         bar.backIndicatorTransitionMaskImage = UIImage(named: "back")
         bar.tintColor = Color.darkText.primary
-        
-        
-        let groupUrl = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.bark")
-        let fileUrl = groupUrl?.appendingPathComponent("bark.realm")
-        let config = Realm.Configuration(
-            fileURL: fileUrl,
-            schemaVersion: 12,
-            migrationBlock: { migration, oldSchemaVersion in
-                // We haven’t migrated anything yet, so oldSchemaVersion == 0
-                if (oldSchemaVersion < 1) {
-                    // Nothing to do!
-                    // Realm will automatically detect new properties and removed properties
-                    // And will update the schema on disk automatically
-                }
-        })
-        // Tell Realm to use this new configuration object for the default Realm
-        Realm.Configuration.defaultConfiguration = config
 
-        //iCloud 同步
-        syncEngine = SyncEngine(objects: [
-            SyncObject(type: Message.self)
-        ], databaseScope: .private)
-
-
-        let realm = try? Realm()
-        print("message count: \(realm?.objects(Message.self).count ?? 0)")
-        
         return true
     }
 

Bark/en.lproj/Localizable.strings

@@ -70,3 +70,8 @@ setSounds = "You can set different sounds for push notifications";
 viewAllSounds = "View all sounds";
 
 service = "Service";
+
+lastHour = "The last hour";
+today = "Today";
+todayAndYesterday = "Today and yesterday";
+allTime = "All time";

Bark/zh-Hans.lproj/Localizable.strings

@@ -70,3 +70,9 @@ setSounds = "可以为推送设置不同的铃声";
 viewAllSounds = "查看所有铃声";
 
 service = "服务器";
+
+
+lastHour = "过去一小时";
+today = "今天";
+todayAndYesterday = "昨天和今天";
+allTime = "所有时间";

Common/Date+Extension.swift

@@ -41,3 +41,24 @@ extension Date {
         return "刚刚"
     }
 }
+
+extension Date {
+    static var yesterday: Date { return Date().dayBefore }
+    static var tomorrow:  Date { return Date().dayAfter }
+    static var lastHour:  Date { return Calendar.current.date(byAdding: .hour, value: -1, to: Date())! }
+    var dayBefore: Date {
+        return Calendar.current.date(byAdding: .day, value: -1, to: noon)!
+    }
+    var dayAfter: Date {
+        return Calendar.current.date(byAdding: .day, value: 1, to: noon)!
+    }
+    var noon: Date {
+        return Calendar.current.date(bySettingHour: 0, minute: 0, second: 0, of: self)!
+    }
+    var month: Int {
+        return Calendar.current.component(.month,  from: self)
+    }
+    var isLastDayOfMonth: Bool {
+        return dayAfter.month != month
+    }
+}

Controller/MessageListViewController.swift

@@ -13,7 +13,21 @@ import RxCocoa
 import RxDataSources
 import MJRefresh
 
+enum MessageDeleteType {
+    case lastHour
+    case today
+    case todayAndYesterday
+    case allTime
+}
+
 class MessageListViewController: BaseViewController {
+    let deleteButton: BKButton = {
+        let btn = BKButton()
+        btn.setImage(UIImage(named: "baseline_delete_outline_black_24pt"), for: .normal)
+        btn.frame = CGRect(x: 0, y: 0, width: 40, height: 40)
+        return btn
+    }()
+    
     let tableView: UITableView = {
         let tableView = UITableView()
         tableView.separatorStyle = .none
@@ -29,6 +43,8 @@ class MessageListViewController: BaseViewController {
     override func makeUI() {
         self.title = NSLocalizedString("historyMessage")
         
+        navigationItem.setRightBarButtonItem(item: UIBarButtonItem(customView: deleteButton))
+        
         self.view.addSubview(tableView)
         tableView.snp.makeConstraints { (make) in
             make.edges.equalToSuperview()
@@ -42,11 +58,37 @@ class MessageListViewController: BaseViewController {
             return
         }
         
-        let output = viewModel.transform(input: MessageListViewModel.Input(
+        let batchDelete = deleteButton.rx
-            loadMore: tableView.mj_footer!.rx.refresh.asDriver(),
+            .tap
-            itemDelete: tableView.rx.itemDeleted.asDriver(),
+            .flatMapLatest { Void -> PublishRelay<MessageDeleteType> in
-            itemSelected: tableView.rx.modelSelected(MessageTableViewCellViewModel.self).asDriver()
+                let relay = PublishRelay<MessageDeleteType>()
-        ))
+
+                let alertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("lastHour"), style: .default, handler: { _ in
+                    relay.accept(.lastHour)
+                }))
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("today"), style: .default, handler: { _ in
+                    relay.accept(.today)
+                }))
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("todayAndYesterday"), style: .default, handler: { _ in
+                    relay.accept(.todayAndYesterday)
+                }))
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("allTime"), style: .default, handler: { _ in
+                    relay.accept(.allTime)
+                }))
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("cancel"), style: .cancel, handler: nil))
+                self.navigationController?.present(alertController, animated: true, completion: nil)
+                
+                return relay
+            }
+        
+        let output = viewModel.transform(
+            input: MessageListViewModel.Input(
+                loadMore: tableView.mj_footer!.rx.refresh.asDriver(),
+                itemDelete: tableView.rx.itemDeleted.asDriver(),
+                itemSelected: tableView.rx.modelSelected(MessageTableViewCellViewModel.self).asDriver(),
+                delete:batchDelete.asDriver(onErrorDriveWith: .empty())
+            ))
         
         //tableView 刷新状态
         output.refreshAction

Controller/MessageListViewModel.swift

@@ -17,6 +17,7 @@ class MessageListViewModel: ViewModel,ViewModelType {
         var loadMore: Driver<Void>
         var itemDelete: Driver<IndexPath>
         var itemSelected: Driver<MessageTableViewCellViewModel>
+        var delete: Driver<MessageDeleteType>
     }
     
     struct Output {
@@ -124,7 +125,40 @@ class MessageListViewModel: ViewModel,ViewModelType {
         }
         .compactMap { URL(string: $0) } //只处理正确的url
         
+        //批量删除
+        input.delete.drive(onNext: {[weak self] type in
+            guard let strongSelf = self else { return }
+            
+            var date = Date()
+            switch type {
+            case .allTime:
+                date = Date(timeIntervalSince1970: 0)
+            case .todayAndYesterday:
+                date = Date.yesterday
+            case .today:
+                date = Date().noon
+            case .lastHour:
+                date = Date.lastHour
+            }
+            
+            if let realm = try? Realm() {
+                let messages = realm.objects(Message.self).filter("createDate >= %@", date)
+                try? realm.write{
+                    for msg in messages{
+                        msg.isDeleted = true
+                    }
+                }
+            }
+            
+            strongSelf.page = 0
+            let messages = strongSelf.getNextPage()
+            let cellViewModels =  messages.map({ (message) -> MessageTableViewCellViewModel in
+                return MessageTableViewCellViewModel(message: message)
+            })
+            messagesRelay.accept([MessageSection(header: "model", messages: cellViewModels)])
         
+            
+        }).disposed(by: rx.disposeBag)
         
         return Output(
             messages: messagesRelay.asDriver(onErrorJustReturn: []),