我有2个阵列
var messages = [Message]()
var screenMessages = [screenMessage]()
我在NSTableView中有消息数组项。当我按下IBOutlet时,我想将该行中的项目传递给screenMessages数组,以呈现在另一个NSTableView中。
我的NSTableView就是这样开始的。
func tableView(tableView: NSTableView, viewForTableColumn tableColumn: NSTableColumn?, row: Int) -> NSView? {
let result = tableView.makeViewWithIdentifier("cell", owner: self) as? secondviewTableCell
let mess = messages[row]
我尝试了多种方法将screenMessages附加到消息[row]但我不能把手指放在上面。如果有人能证明或指出我正确的方向,那将是辉煌的。
谢谢。
添加了更多详细信息:
屏幕1看起来是这样的,当按下添加按钮时,它应该将该行中的数据传递到屏幕twos tableview ..
屏幕二:
我的第一屏视图如下:
import Firebase
import Cocoa
var messages = [Message]()
var screenMessages = [screenMessage]()
class secondVC: NSViewController, NSTableViewDelegate, NSTableViewDataSource {
@IBOutlet weak var tableView: NSTableView!
@IBOutlet weak var screenRefreshBtn: NSButton!
@IBOutlet weak var refreshButton: NSButton!
var senderImageUrl: String!
var ref: Firebase!
var messagesRef: Firebase!
func setupFirebase() {
messagesRef = Firebase(url: "https://url.firebaseio.com/screenmessages")
messagesRef.queryLimitedToLast(25).observeEventType(FEventType.ChildAdded, withBlock: { (snapshot) in
let text = snapshot.value["text"] as? String
let sender = snapshot.value["senderName"] as? String
let imageUrl = snapshot.value["profileImageURL"] as? String
let MediaType = snapshot.value["MediaType"] as! String
let fileUrl = snapshot.value["fileUrl"] as? String
let message = Message(text: text, sender: sender, imageUrl: imageUrl, MediaType: MediaType, fileUrl: fileUrl)
messages.append(message)
let screenmessage = screenMessage(text: text, sender: sender, imageUrl: imageUrl, MediaType: MediaType, fileUrl: fileUrl)
screenMessages.append(screenmessage)
switch MediaType{
case "TEXT":
print("text message")
case "PHOTO":
print("photo message")
default:
print("default")
}
self.tableView.reloadData()
})
}
override func viewDidLoad() {
super.viewDidLoad()
setupFirebase()
}
// MARK: - Table View
func numberOfRowsInTableView(tableView: NSTableView) -> Int {
return messages.count
}
func tableView(tableView: NSTableView, viewForTableColumn tableColumn: NSTableColumn?, row: Int) -> NSView? {
let result = tableView.makeViewWithIdentifier("cell", owner: self) as? secondviewTableCell
let mess = messages[row]
if mess.text() == nil {
result?.textField?.alphaValue = 0
result!.sendertextView.stringValue = mess.sender()
let url = NSURL(string: mess.fileUrl()!)!
// Download task:
// - sharedSession = global NSURLCache, NSHTTPCookieStorage and NSURLCredentialStorage objects.
let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (responseData, responseUrl, error) -> Void in
// if responseData is not null...
if let data = responseData{
// execute in UI thread
dispatch_async(dispatch_get_main_queue(), { () -> Void in
let photo = NSImage(data: data)!
result?.mediaPhoto.image = photo
})
}
}
task.resume()
} else {
result!.textField!.stringValue = mess.text()!
result!.sendertextView.stringValue = mess.sender()
}
return result
}
@IBAction func addtablerow(object: NSButton) {
let row = tableView.rowForView( object as NSView )
if ( row > -1 ) {
}
}
我的第二个屏幕是:
import Cocoa
class screenVC: NSViewController, NSTableViewDelegate, NSTableViewDataSource {
var addedObserver = false
@IBOutlet weak var tableView: NSTableView!
override func viewDidLoad() {
super.viewDidLoad()
refreshObs()
clearObs()
self.tableView.backgroundColor = NSColor.clearColor()
if let window = self.view.window {
// custom window here
window.level = Int(CGWindowLevelForKey(.FloatingWindowLevelKey))
} else {
addedObserver = true
self.addObserver(self, forKeyPath: "view.window", options: [.New, .Initial], context: nil)
}
}
func refreshList(notification: NSNotification){
self.tableView.alphaValue = 0
dispatch_async(dispatch_get_main_queue(), {
self.tableView.reloadData()
})
animateViewRefresh()
tableView.scrollToEndOfDocument(self)
}
func numberOfRowsInTableView(tableView: NSTableView) -> Int {
return screenMessages.count
}
func tableView(tableView: NSTableView, viewForTableColumn tableColumn: NSTableColumn?, row: Int) -> NSView? {
let result = tableView.makeViewWithIdentifier("cell2", owner: self) as? screenviewTableCell
let mess = screenMessages[row]
result?.senderLabel.stringValue = mess.sender()
if mess.text() != nil {
result?.messageTextView.stringValue = mess.text()!
let url = NSURL(string: mess.imageUrl()!)!
let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (responseData, responseUrl, error) -> Void in
if let data = responseData{
dispatch_async(dispatch_get_main_queue(), { () -> Void in
result?.avatarImage.image = NSImage(data: data)
})
}}
task.resume()
} else {
result?.messageTextView.alphaValue = 0
let mess = screenMessages[row]
let url = NSURL(string: mess.fileUrl()!)!
let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (responseData, responseUrl, error) -> Void in
if let data = responseData{
dispatch_async(dispatch_get_main_queue(), { () -> Void in
let photo = NSImage(data: data)!
result?.mediaPhoto.image = photo
})
}
}
let url2 = NSURL(string: mess.imageUrl()!)!
let task2 = NSURLSession.sharedSession().dataTaskWithURL(url2) { (responseData, responseUrl, error) -> Void in
if let data = responseData{
dispatch_async(dispatch_get_main_queue(), { () -> Void in
result?.avatarImage.image = NSImage(data: data)
})
}}
task.resume()
task2.resume()
}
return result
}
// MARK : Animate
func animateView(notification: NSNotification){
NSAnimationContext.runAnimationGroup({ (context) in
context.duration = 2
self.tableView.animator().alphaValue = 0
screenMessages.removeAll()
}, completionHandler: { () -> Void in
})}
func animateViewRefresh(){
NSAnimationContext.runAnimationGroup({ (context) in
context.duration = 4
self.tableView.animator().alphaValue = 1
}, completionHandler: { () -> Void in
})}
func refreshObs(){
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(screenVC.refreshList(_:)), name:"refreshMyTableView", object: nil)
}
func clearObs(){
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(screenVC.animateView(_:)), name:"clearMyTableView", object: nil)
}
override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
if let window = self.view.window {
// custom window here
window.level = Int(CGWindowLevelForKey(.FloatingWindowLevelKey))
window.titlebarAppearsTransparent = true
window.movableByWindowBackground = true
window.opaque = true
window.backgroundColor = NSColor.clearColor()
}
}
deinit {
if addedObserver {
self.removeObserver(self, forKeyPath: "view.window")
}
}
}
我尝试过很多东西,比如'screenMessages + = messages(row)',然后将该行添加到screenMessages数组中,但我没有运气。
我是以正确的方式解决这个问题还是有更好的方法呢?
谢谢。
答案 0 :(得分:0)
要将一个元素从一个数组附加到另一个数组,只需写入
即可let index = index of element you need
let message = messages[index]
screenMessages.append(message)
如果消息与screenMessages数组的内容类型不同,则需要对其进行转换,我需要更多类型的详细信息来帮助解决这个问题。
如果您在将数据传递到另一个ViewController时遇到问题,我需要有关当前体系结构的更多信息以提供好的建议,但是例如,您可以定义一个控制器实现的协议MessageDelegate,另一个控制器具有属性作为属性
<强>更新强>
如果更新表的数据数组并希望显示新信息,请记得在UITableView上调用reloadData