30 lines
750 B
C#
30 lines
750 B
C#
using System.Collections.Generic;
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using System.Windows.Controls;
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public static class NavigationHelper
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{
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public static Frame MainFrame { get; set; }
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private static Stack<Page> _history = new Stack<Page>();
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// 跳转页面
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public static void NavigateTo(Page page)
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{
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if (MainFrame.Content != null)
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_history.Push( MainFrame.Content as Page);
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MainFrame.Content = page;
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}
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// 返回上一页
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public static void GoBack()
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{
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System.Diagnostics.Debug.WriteLine("页面加载了！55555");
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if (_history.Count > 0)
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{
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System.Diagnostics.Debug.WriteLine("页面加载了！4444");
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MainFrame.Content = _history.Pop();
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}
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}
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} |