如何在xamarin工具欄添加選擇器形成

Question

我想補充裝載機bar..right現在我已經添加標籤，這樣

<ContentPage.ToolbarItems> 
    <ToolbarItem Order="Secondary" Priority="1" Name="Approval V" /> 
    <ToolbarItem Order="Primary" Priority="1" Name="sort"/> 
</ContentPage.ToolbarItems> 

在工具dropdownn選擇，但我沒有找到任何解決方案把picker here..Please給我一些建議..

Answer 1

我找到了解決方案，我想分享，如果它可以幫助別人。

 <ContentPage.ToolbarItems> 
    <ToolbarItem Order="Secondary" Priority="1" Name="Approval Now" /> 
    <ToolbarItem Order="Secondary" Priority="1" Name="Tasks - Future" /> 
    <ToolbarItem Order="Secondary" Priority="1" Name="Meeting - Future" /> 
    <ToolbarItem Order="Primary" Priority="1" Name="sort" Clicked="sort_click" /> 
    </ContentPage.ToolbarItems> 

在xaml.cs

private async void sort_click(object sender, EventArgs e) 
    { 
     //string StorageFolder = await Application.Current.MainPage.DisplayActionSheet(SystemMessages.PhothotoSaveFolder, "Cancel", null, SystemMessages.InstallationPhothoto, SystemMessages.SerialNumbers); 
     var action = await DisplayActionSheet("Sort Options", "Cancel", null, "By Approval Due Date", "Meeting Date", "Meeting Type"); 
     Debug.WriteLine("Action: " + action); 

    }