Visual Studio 2022 中的 Xamarin Forms Android => ImageButton TapGestureRecognizer 不工作

Question

我的 xaml 是：

        <ContentPage.Resources>
        <ResourceDictionary>
            <DataTemplate x:Key="displayItemTemplate">
                <StackLayout>
                    <Frame  CornerRadius="3" HasShadow="False" Margin="10,2" Padding="5,0"
                            BorderColor="{Binding BindingContext.AppSettings[MPLVItemFrameBorderColor], Source={x:Reference this}}"
                            BackgroundColor="{Binding BindingContext.AppSettings[MPLVItemFrameBackgroundColor], Source={x:Reference this}}">
                        <StackLayout Orientation="Horizontal">
                            <BoxView BackgroundColor="Transparent" Color="{Binding Status, Converter={StaticResource NoteStatusToColorConverter}}" Margin="4" HeightRequest="32" WidthRequest="32" CornerRadius="5">
                                <BoxView.GestureRecognizers>
                                    <TapGestureRecognizer Command="{Binding Source={x:Reference this}, Path=BindingContext.NoteStatusSwitchCommand}" CommandParameter="{Binding .}"/>
                                </BoxView.GestureRecognizers>
                            </BoxView>
                            <Label BackgroundColor="Transparent" Text="{Binding Description}" TextDecorations="{Binding Status, Converter={StaticResource NoteStatusConverter}}" HorizontalOptions="FillAndExpand" VerticalTextAlignment="Center" HorizontalTextAlignment="Start">
                                <Label.GestureRecognizers>
                                    <TapGestureRecognizer NumberOfTapsRequired="2" Command="{Binding Source={x:Reference this}, Path=BindingContext.NoteEditCommand}" CommandParameter="{Binding .}"/>
                                </Label.GestureRecognizers>
                            </Label>
                            <ImageButton BackgroundColor="Transparent" Source="{Binding ItemImagePath, Converter={StaticResource ImagePathToImageSourceConverter}}" HeightRequest="32" WidthRequest="32"><!--Command="{Binding Source={x:Reference this}, Path=BindingContext.ItemImage1TapCommand}" CommandParameter="{Binding .}">-->
                                <ImageButton.GestureRecognizers>
                                    <TapGestureRecognizer NumberOfTapsRequired="1" Command="{Binding Source={x:Reference this}, Path=BindingContext.ItemImage1TapCommand}" CommandParameter="{Binding .}"/>
                                    <!--<TapGestureRecognizer NumberOfTapsRequired="2" Command="{Binding Source={x:Reference this}, Path=BindingContext.ItemImage2TapsCommand}" CommandParameter="{Binding .}"/>-->
                                </ImageButton.GestureRecognizers>
                            </ImageButton>
                            <ImageButton BackgroundColor="Transparent" Source="NoteDelete.png" HeightRequest="32" WidthRequest="32"
                                         Command="{Binding Source={x:Reference this}, Path=BindingContext.NoteDeleteCommand}" CommandParameter="{Binding .}"/>
                        </StackLayout>
                    </Frame>
                </StackLayout>
            </DataTemplate>
            <DataTemplate x:Key="emptyItemTemplate">
                <Grid/>
            </DataTemplate>

从未调用 ImageButton 中的 TapGestureRecognizer 命令。
如果我删除识别器并在 ImageButton 中放置一个普通命令属性然后调用该命令。
我用了 2 天，尝试了多个测试和互联网浏览。
有谁能帮帮我吗？
注意：水龙头在 中工作良好：
.BoxView
.标签控件
.当我评论ImageButton.GestureRecognizers并将Command直接作为ImageButton的属性时。

！！！已找到解决方案 !!!
我将 ImageButton 包含在 StackLayout 中，并在此 StackLayout 中包含识别器，而不再包含在 ImageButton 中。
好吧，问题似乎解决了。

Answer 1

您只需将 ImageButton 移动到 StackLayout。您必须确保 Recognizers 在您创建的 StackLayout 中，而不是在 ImageButton

中

Visual Studio 2022 中的 Xamarin Forms Android => ImageButton TapGestureRecognizer 不工作

Xamarin Forms Android in Visual Studio 2022 => ImageButton TapGestureRecognizer not working

imagebutton