【发布时间】:2018-10-23 17:10:12
【问题描述】:
我的应用程序发生了一个非常奇怪的问题,我有一个自定义选择器,列表视图的标题中有一个图像、XAML 和 C# 代码:
<controls:CustomPicker Image="arrow" x:Name="filter1" SelectedIndexChanged="filter1_SelectedIndexChanged" HorizontalOptions="FillAndExpand" BackgroundColor="Transparent" TextColor="Black" Title="Category">
<controls:CustomPicker.Margin>
<OnIdiom Phone="8,8,8,8" Tablet="12,12,12,12"/>
</controls:CustomPicker.Margin>
<controls:CustomPicker.FontSize>
<OnIdiom Phone="16" Tablet="24"/>
</controls:CustomPicker.FontSize>
</controls:CustomPicker>
public async void filter1_SelectedIndexChanged(object sender, EventArgs e)
{
index = 0;
var selected = filter1.Items[filter1.SelectedIndex];
for (int i = 0; i < mylist.Count; i++)
{
if (mylist[i].description == selected && selected != null && selected != "")
{
await GetItemsCategorized(mylist[i].code, index, searching.Text);
}
}
}
以及在视单元中具有条目的列表视图、XAML 和 C# 代码:
<StackLayout Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Entry Keyboard="Numeric" HorizontalOptions="EndAndExpand" TextChanged="Entry_TextChanged" WidthRequest="40">
<Entry.Behaviors>
<controls:NumericValidationBehavior/>
</Entry.Behaviors>
</Entry>
</StackLayout>
private void Entry_TextChanged(object sender, TextChangedEventArgs e)
{
var entry = sender as Entry;
var product = entry.BindingContext as Sales_Order_Items;
if (e.NewTextValue != null && e.NewTextValue != "" && !e.NewTextValue.Contains("-") && !e.NewTextValue.Contains("."))
product.requested_quantity = int.Parse(e.NewTextValue.ToString());
else
product.requested_quantity = 0;
}
当我专注于每个视图单元上的条目时,当列表视图显示在 Android 上时,事情就在 android 上,选择器通过键盘启用并且键盘消失了!!!!在 iOS 上运行良好:
知道为什么会这样吗?!!
【问题讨论】:
标签: c# android listview xamarin.forms