我环顾四周寻找一个很好的例子,说明如何传递在 1 个 View Controller 中创建和填充的数组,并通过模态 segue 将其传递给另一个。
这是我的 Storyboard
用户单击历史按钮,它会弹出打开模态 TableView Controller 。然后用从原始 View 发送或传递的数组的内容填充表格 View 。
当我在目标 View Controller 中打印数组的内容时,它是空的。所以我认为它的初始化方式存在问题。
这是我目前的代码
这是第一个 UIView Controller
//UIPickerView BarButtonItem done button actions here
func donePicker() {
txtHeight.resignFirstResponder()
var feet = Int(item1.componentsSeparatedByString(" ")[0])!
let inches = Int(item2.componentsSeparatedByString(" ")[0])!
feet *= 12
let totalInches = feet + inches
totalHeightValues.append(totalInches)
print(totalHeightValues)
txtHeight.text = ""
let alertController = UIAlertController(title: "\(feet / 12) ft" + " " + "\(inches) in", message: "Entry Sucessfully Added", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default,handler: nil))
self.presentViewController(alertController, animated: true, completion: nil)
}
//UIPickerView BarButtonItem cancel button actions here
func cancelPicker() {
txtHeight.text = ""
txtHeight.resignFirstResponder()
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "showHistory") {
let dVC = (segue.destinationViewController as! HistoryTableViewController)
dVC.totalHeightValuesDest = totalHeightValues
}
}
这里是目标或第二个 tableviewcontroller
import UIKit
class HistoryTableViewController: UITableViewController {
@IBAction func btnExit(sender: AnyObject) {
dismissViewControllerAnimated(true, completion: nil)
}
var totalHeightValuesDest: [Int] = []
override func viewDidLoad() {
super.viewDidLoad()
print(totalHeightValuesDest)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return totalHeightValuesDest.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath)
cell.textLabel?.text = "\(totalHeightValuesDest[indexPath.row])"
return cell
}
prepareForSeque
的第一个 View Controller 中,将属性分配给您当前拥有的数组。在第 2 步中,在 dVC.totalHeightValuesDest = totalHeightValues
之后,添加以下内容:
dVC.myNewArrayProperty = myCurrentArrayOfHistoryObjects
。显然,您将在 HistoryViewController 和当前 myCurrentArrayOfHistoryObjects 中创建的属性名称替换为您拥有的本地数组变量的名称。
确保正确地转换destinationViewController(首先是UINavigationController,然后调用topViewController 来访问你的HistoryViewController)。
关于ios - 如何快速将数组传递给另一个 View Controller ?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37633599/
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