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[英]CommitEditingStyle of Monotouch.Dialog RootElement
[英]Updating Monotouch.Dialog RootElement
我一直在遵循monotouch.dialog任务示例应用程序(http://docs.xamarin.com/ios/Guides/User_Interface/MonoTouch.Dialog/Elements_API_Walkthrough)中的代码。
我似乎无法解决的问题是,当用户单击+按钮时,将在表中添加新行。 用户触摸此按钮,然后导航到另一个可以输入信息的屏幕。 现在,当它们导航回到根视图时,我希望更新rootElements的列表,以便使用输入的名称代替默认名称“ connection”
我将如何根据输入的内容为每个RootElement更新文本?
我希望一切都有道理!
-下面的代码。
public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
window = new UIWindow (UIScreen.MainScreen.Bounds);
RootElement _rootElement = new RootElement ("To Do List"){ new Section()};
DialogViewController _rootVC = new DialogViewController (_rootElement);
// This adds an 'add' button to the root view controller, and handles by delegate,the push to a screen where you can add a new vCenter connection profile.
UIBarButtonItem _addButton = new UIBarButtonItem (UIBarButtonSystemItem.Add);
_rootVC.NavigationItem.RightBarButtonItem = _addButton;
_addButton.Clicked += (sender, e) => {
var connectionProfile = new connectionProfile{};
// See, on the line below, I add a default RootElement with the text New Connection.
var connectionProfileElements = new RootElement ("New Connection") {
new Section () {
// When they enter the name on the next line of code, I want to use this to update the New Connection text on the root screen.
new EntryElement ("Name", "Enter Connection Name", connectionProfile._connectionName),
new EntryElement ("VC Address", "Enter VC Address", connectionProfile._address),
new EntryElement ("VC Port", "Enter VC Port", connectionProfile._port),
new EntryElement ("Username", "Enter Username", connectionProfile._userID),
new EntryElement ("Password", "Enter Password", connectionProfile._password,true)}
};
_rootElement [0].Add (connectionProfileElements);
};
UINavigationController _nav = new UINavigationController (_rootVC);
window.RootViewController = _nav;
window.MakeKeyAndVisible ();
return true;
}
}
和:
public class connectionProfile
{
public connectionProfile ()
{
}
public string _connectionName { get; set; }
public string _address { get; set; }
public string _port { get; set; }
public string _userID {get; set; }
public string _password { get; set; }
}
您是否尝试this.ReloadData();
像这样 ?
public NameOfYourDialogViewController() : base (UITableViewStyle.Grouped, null)
{
Root = new RootElement ("test") {
new Section ("First Section"){
new StringElement ("Hello", () => {
new UIAlertView ("Hola", "Thanks for tapping!", null, "Continue").Show ();
}),
new EntryElement ("Name", "Enter your name", String.Empty)
},
new Section ("Second Section"){
},
};
}
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
// Do your stuff
}
public override void ViewWillAppear (bool animated)
{
base.ViewWillAppear (animated);
this.ReloadData();
}
您忘了说这位于您的AppDelegate中,它不是针对您正在做的事情。
首先,创建一个DialogViewController: 项目>添加新文件> MonoTouch> DialogViewController 。 在前面提到的另一种方法中,放入ReloadData()方法。 这些方法(ViewDidLoad,WillAppear等)是UIView中的替代方法。 AppDelegate的存在是为了在您启动之前获取数据,为您的应用存储静态数据,等等。 完全不同的用法。
对于您的AppDelegate,您应该有以下示例:
public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
_window = new UIWindow (UIScreen.MainScreen.Bounds);
_controller = new NameOfYourDialogViewController();
_navigationController = new UINavigationController (_controller);
UIImageView splash = new UIImageView(_window.Bounds);
splash.Image = UIImage.FromFile("Default.png");
_window.AddSubview(splash);
_window.AddSubview(_navigationController.View);
_window.BringSubviewToFront(splash);
_window.MakeKeyAndVisible ();
// This is used to create a fadding effect in your splashscreen
UIView.Animate(1,
delegate { splash.Alpha = 0f; },
delegate {
_window.RootViewController = _navigationController;
splash.RemoveFromSuperview();
});
return true;
}
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