问在xamarin.forms中点击列表中的图像来聚焦时间选择器

EN

<ViewCell.View>
        <StackLayout>
            <Button Text="ImagTest" Clicked="Button_Clicked"/>
            <Picker x:Name="pickerTest"
        </StackLayout>
    </ViewCell.View>

public partial class CustomCell : ViewCell
    {
        public CustomCell ()
        {
            InitializeComponent ();
        }

        private void Button_Clicked(object sender, EventArgs e)
        {
            pickerTest.Focus();
        }
    }

 xmlns:local="clr-namespace:YourProject;assembly=YourProject"

<ListView HasUnevenRows="True" ItemSelected="ListView_ItemSelected" x:Name="listView">
        <ListView.ItemTemplate>
            <DataTemplate>
                <local:CustomCell/>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>