I've a listview and when click list item, I want to open the item detail page. But when I more than one click quickly its opening two navigationpage. My detail Page's const have a async method.
Here is my code.

How to block multiple clicks?

MyPage.xaml 

```
    <ListView      
    HasUnevenRows="True"
    SeparatorColor="#e7e5e5"
    IsPullToRefreshEnabled="True"      
    ItemsSource="{Binding ExpecterDemands}"
    IsRefreshing="{Binding IsBusy, Mode=OneWay}"
    ItemSelected="InfiniteListView_ItemSelected">

```

MyPage.xaml.cs

```
async void InfiniteListView_ItemSelected(object sender, SelectedItemChangedEventArgs e`
    {         
        await Navigation.PushAsync(new DetailPage());
    }

```