[英]How to open new view from UITableViewRow button click event?
I want to open the new View Controller from my first view that is Table View Controller. 我想从第一个视图即Table View Controller打开新的View Controller。
First View Controller: TableView Controller with Rows. First View Controller:具有行的TableView Controller。 Second View Controller: TableView Controller, Detail View Controller for the selected row on the First Table View Controller.
第二个视图控制器:TableView Controller,第一个表视图控制器上选定行的详细信息视图控制器。
using System;
using System.Collections.Generic;
using System.Text;
using Foundation;
using UIKit;
namespace TourStops.iOS {
class TourStopsTableSource : UITableViewSource {
private List<TourLib.TourStop> _stops;
NSString _cellID = new NSString("TableCell");
FirstViewController _fvc;
public TourStopsTableSource(FirstViewController fvc) {
_stops = TourLib.TourSource.GetAllTourStops();
_fvc = fvc;
}
public override nint RowsInSection(UITableView tableview, nint section)
{
// tell the TableView how many rows to create
return _stops.Count;
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath) {
TourLib.TourStop currentTourStop = _stops[indexPath.Row];
var cell = tableView.DequeueReusableCell(_cellID) as TourStopTableCell;
if (cell == null) { cell = new TourStopTableCell(_cellID); }
cell.UpdateCellControlsWithTourData(currentTourStop.Name, currentTourStop.Phone);
#region SetupMapButton
string mapUrl = String.Format("http://maps.google.com/maps?q={0}+{1}",
currentTourStop.Latitude,
currentTourStop.Longitude);
cell.MapButton.TouchUpInside += delegate (object sender, EventArgs e)
{
UIApplication.SharedApplication.OpenUrl(new NSUrl(mapUrl));
};
#endregion
cell.CallButton.TouchUpInside += OpenDetailView;
return cell;
}
private void OpenDetailView(object sender, EventArgs e) {
var view = new SecondDetailController();
_parent.NavigationController.PushViewController(view, true);
}
}
}
My FirstViewController Class: 我的FirstViewController类:
using Foundation;
using System;
using UIKit;
namespace TourStops.iOS
{
public partial class FirstViewController : UIViewController
{
public FirstViewController (IntPtr handle) : base (handle)
{
}
public FirstViewController ()
{
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
TourStopsTable.Source = new TourStopsTableSource(new FirstViewController ());
}
}
}
You need a reference to the NavigationController. 您需要对NavigationController的引用。 There are multiple ways to do this, but one common patter is when you create your Source, pass in a reference to it's parent VC
有多种方法可以执行此操作,但是一种常见的模式是在创建Source时,将对它的引用传递给其父VC
ViewController _parent;
public TourStopsTableSource(UIViewController parent) {
_stops = TourLib.TourSource.GetAllTourStops();
_parent = parent;
}
then, assuming your parent VC is contained within a NavigationController, 然后,假设您的父VC包含在NavigationController中,
private void OpenDetailView(object sender, EventArgs e) {
var view = new SomeDetailController();
_parent.NavigationController.PushViewController(view, true);
}
Edit: 编辑:
In your amended example above, you are doing 在上面的修改示例中,您正在
TourStopsTable.Source = new TourStopsTableSource(new FirstViewController ());
instead you need to pass a reference to the ALREADY EXISTING VC: 相反,您需要传递对ALREADY EXISTING VC的引用:
TourStopsTable.Source = new TourStopsTableSource(this);
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