| import UIKit
//Table列表页面
class MasterViewController: UITableViewController {
let BL:NoteBL = NoteBL()
var detailViewController: DetailViewController? = nil
var objects = NSMutableArray()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.navigationItem.leftBarButtonItem = self.editButtonItem
//let addButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(insertNewObject(_:)))
//self.navigationItem.rightBarButtonItem = addButton
if let split = self.splitViewController {
let controllers = split.viewControllers
self.detailViewController = (controllers[controllers.count-1] as! UINavigationController).topViewController as? DetailViewController
}
//查出所有数据
self.objects = self.BL.findAll()
//（接收通知）监听通知事件RegisterCompletionNotification，交给registerCompletion函数处理
NotificationCenter.default.addObserver(self, selector: #selector(CreateNoteList(notification:)), name: NSNotification.Name.init(rawValue: "CreateNoteList"), object: nil)// . object: nil 可以发送通知的视图接收过来
}
override func viewWillAppear(_ animated: Bool) {
self.clearsSelectionOnViewWillAppear = self.splitViewController!.isCollapsed
super.viewWillAppear(animated)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*func insertNewObject(_ sender: Any) {
objects.insert(NSDate(), at: 0)
let indexPath = IndexPath(row: 0, section: 0)
self.tableView.insertRows(at: [indexPath], with: .automatic)
}*/
// MARK: - Segues
//详细页面显示
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showDetail" {
if let indexPath = self.tableView.indexPathForSelectedRow {
let object = objects[indexPath.row] as! Note
let controller = (segue.destination as! UINavigationController).topViewController as! DetailViewController
controller.detailItem = object
controller.navigationItem.leftBarButtonItem = self.splitViewController?.displayModeButtonItem
controller.navigationItem.leftItemsSupplementBackButton = true
}
}
}
// MARK: - Table View
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.objects.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
let object = objects[indexPath.row] as! Note//查询数组中的Note出来
cell.textLabel!.text = object.Content as String//取Note的Content的属性
return cell
}
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
// Return false if you do not want the specified item to be editable.
return true
}
//进行操作，当前主要处理delete操作
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete {
let removeNote = self.objects[indexPath.row] as? Note
self.objects = BL.remove(model: removeNote!)
//self.objects.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .fade)
} else if editingStyle == .insert {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view.
}
}
//实现通知监听方法
func CreateNoteList(notification : NSNotification) {
let allData = notification.object as! NSMutableArray//取到投送过来对像
self.objects = allData//拿到的数据给当前视图的变量
self.tableView.reloadData()//重新加载当前表视图
}
}
| 
