Listview 在Android上更改Xamarin.Forms列表视图中的默认TextColor

我正在尝试更改Andoid上Xamarin.Forms列表视图中的默认

TextColor

ListView非常简单：

List<string> cities = new List<string> { "Berlin", "Bonn", "Braunschweig", "Bremen" };
ListView listView = new ListView();
listView.ItemsSource = cities;
Content = listView;

textAppearanceListItemSmall

使用属性

textAppearanceMedium

进行渲染，如您所见

因此，我将颜色和主题添加到资源中：

<?xml version="1.0" encoding="UTF-8" ?>
<resources>
  <color name="Black">#000000</color>
</resources>


<?xml version="1.0" encoding="UTF-8"?>
<resources>
  <style name="MyTheme" parent="android:Theme.Holo.Light">
    <item name="android:textAppearanceMedium">@style/MyDefaultTextAppearanceM</item>
  </style>

  <style name="MyDefaultTextAppearanceM" parent="@android:style/TextAppearance.Medium">
    <item name="android:textColor">@color/Black</item>
  </style>
</resources>

#000000
@样式/MyDefaultTextAppearanceM
@颜色/黑色

我还将主题添加到我的活动的属性中（

Theme=“@style/MyTheme

） 主题基本正常。使用

@color/Blue4

我可以更改HighlightColor

---

那么，如何在ListView黑色中获得文本颜色？我做错了什么？

在设置内容之前，请尝试添加以下内容：

var template = new DataTemplate(typeof(TextCell));
template.SetValue(TextCell.TextColorProperty, Color.Black);
listView.ItemTemplate = template;

---

谈话晚了，但也许这会让其他人失望

基于Xaml的解决方案，非常简单-只需在ImageCell上设置TextColor。如下所示：

    <ContentPage.Content>
        <StackLayout VerticalOptions="FillAndExpand">
            <ListView x:Name="listView" VerticalOptions="FillAndExpand"
                SeparatorVisibility="None">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ImageCell TextColor="Black" Text="{Binding Title}"
                            ImageSource="{Binding IconSource}"/>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>

---

您还必须添加template.SetBinding（TextCell.TextProperty，“.”）；然后它才能工作。

    <ContentPage.Content>
        <StackLayout VerticalOptions="FillAndExpand">
            <ListView x:Name="listView" VerticalOptions="FillAndExpand"
                SeparatorVisibility="None">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <ImageCell TextColor="Black" Text="{Binding Title}"
                            ImageSource="{Binding IconSource}"/>
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>

[assembly: ExportRenderer(typeof(MyTextCell), typeof(MyTextCellRenderer))]
namespace MyNamespace.Droid.Renderers
{
    public class MyTextCellRenderer : TextCellRenderer
    {
        protected override Android.Views.View GetCellCore(Cell item, Android.Views.View convertView, ViewGroup parent, Context context)
        {
            Android.Views.View result =  base.GetCellCore(item, convertView, parent, context);

            (result as BaseCellView).SetDefaultMainTextColor(Color.Black);

            return result;
        }
    }
}