var modelStack = Microsoft.Maui.Controls.Application.Current.MainPage.Navigation.ModalStack; if (modelStack.Count == 0) { if (isExit) { //第2次返回键 Microsoft.Maui.Controls.Application.Current.Quit; } else { //第一次返回键 isExit = true; new Android.OS.Handler.PostDelayed( => { isEx...
var modelStack = Microsoft.Maui.Controls.Application.Current.MainPage.Navigation.ModalStack; if(modelStack.Count ==0) { if(isExit) { //第2次返回键 Microsoft.Maui.Controls.Application.Current.Quit(); } else { //第一次返回键 isExit =true; new Android.OS.Handler().PostDelayed(() => { i...
PushAsync或PushModalAsync可以按文件名的页面导航 publicasyncTaskPushAsync(stringpageName,object[]args=null){varpage=GetPageInstance(pageName,args);awaitmainPageNavigation.PushAsync(page);}publicasyncTaskPushModalAsync(stringpageName,object[]args=null){varpage=GetPageInstance(pageName,args);awaitmainPageNav...
我尝试重写Page类事件,但没有成功。 //override base class Page protected override void OnDisappearing() { // find if textbox value has changed bool hasChanges = FindChanges(); if (hasChanges) { //show dialog here , cancel page exit //.PushAsync(YesNoModal) return; } //continue normally ...
在目前頁面的 屬性上Navigation呼叫PushModalAsync方法,即可強制巡覽頁面: C# awaitNavigation.PushModalAsync(newDetailsPage()); 在此範例中DetailsPage,物件會推送至強制回應堆疊,而該堆疊會變成使用中的頁面。 注意 方法PushModalAsync具有覆寫,其中包含自bool變數,指定是否要在瀏覽期間顯示頁面轉換。PushModalAsync缺少...
ModalPushedEventArgs ModalPushingEventArgs 多重绑定 MultiPage<T> MultiTrigger NamedSize NameScopeExtensions NavigableElement NavigatedFromEventArgs NavigatedToEventArgs NavigatingFromEventArgs NavigationEventArgs NavigationPage NullEffect 开 OnIdiom<T> OnPlatform<T> OpenRequestedEventArgs OrientationStateTrigger 页面 ...
ModalPushingEventArgs 多重绑定 MultiPage<T> MultiTrigger NamedSize NameScopeExtensions NavigableElement NavigatedFromEventArgs NavigatedToEventArgs NavigatingFromEventArgs NavigationEventArgs NavigationPage NullEffect 开 OnIdiom<T> OnPlatform<T> OpenRequestedEventArgs OrientationStateTrigger 页面 PanGestureRecognizer Pa...
asyncvoidNextModalNavigation(System.Objectsender,System.EventArgse){awaitNavigation.PushModalAsync(newDetailsPage());} C# ➖PopModalAsync:This method allows you to return to the previous page on the stack. It shares the same parameters as the PopAsync method detailed previously, but is tailored ...
return true; } } 字符串您可以像这样从方法中调用它 var page = new LoadingPage(); await Navigation.PushModalAsync(page, false); 型这里是一个样本,它可以看起来像 的数据 3#xdnvmnnf 2023-11-20 我在这里分享另一种使用MessagingCenter显示和关闭弹出窗口的方法。首先,发布消息 private async void Undo...
一旦我们掌握了该接口的实现,我们就可以执行诸如PushAsync、PopAync、PushModalAsync之类的操作……MAUI中的每个Page都有一个Navigation类型的INavigation属性。但是在我们的“框架”中,ViewModel不知道Page,它没有对它的引用。幸运的是,我们可以访问App的MainPage并获取它的Navigation属性:...