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image - 垂直滚动视图在 xamarin 表单中不起作用。？

问题描述

我正在尝试在 Xamarin Forms 中滚动 xfxCardview。但它不是滚动的。这是我的代码

            <ScrollView  Orientation = "Vertical" VerticalOptions="FillAndExpand">
                <StackLayout Orientation="Vertical" VerticalOptions="FillAndExpand">
            <xfx:XfxCardView 
                    BackgroundColor="White"
                    CornerRadius="30" 
                Elevation="20"
             HeightRequest="160" IsClippedToBounds="True" VerticalOptions="FillAndExpand">
                <StackLayout Orientation="Horizontal">

                    <Grid VerticalOptions="CenterAndExpand"  
             Padding="0"  
             HorizontalOptions="FillAndExpand"  
             BackgroundColor="Transparent">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="25" />
                            <RowDefinition Height="25" />
                            <RowDefinition Height="25" />
                            <RowDefinition Height="35" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="100"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Frame Margin="10,5,5,-20"  CornerRadius="10" Grid.RowSpan="3"  BackgroundColor="LightBlue"  IsClippedToBounds="True">
                            <Image Margin="-70,-70,-70,-70"  Grid.Row="0" Grid.Column="0" Grid.RowSpan="4" Source="restaurantimage1.jpg" />
                        </Frame>
                        <Label Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="4" Margin="0,10,0,0"  TextColor="Black" FontFamily="Bold,100"  Text="Premera restaurant" />
                        <Image Grid.Row="0" Grid.Column="5" Margin="0,10,0,0"  Source="whitehearticon3"/>
                        <Label Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="6" Text="Avenue Road, 256" TextColor="Blue" />
                        <Label Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="6" Text="Indian,Italy,Chinese Kitchen" />
                        <Image Grid.Row="3" Grid.Column="1"   Source="whitestaricon1"/>
                        <Label Grid.Row="3" Grid.Column="2" HeightRequest="30" Text="4,3" />
                        <Image Grid.Row="3" Grid.Column="3" Margin="-10,0,0,0"   Source="rupeeicon1"/>
                        <Label Grid.Row="3" Grid.Column="4"  Margin="-10,0,0,0" Text="150 min" />
                        <Image Grid.Row="3" Grid.Column="5" Margin="-20,0,0,0"  Source="handicon1"/>
                            <Label Grid.Row="3" Grid.Column="6"  Margin="-10,0,0,0" HeightRequest="10" Text="Free 3kms" />
                    </Grid>
                </StackLayout>
            </xfx:XfxCardView>

                <xfx:XfxCardView 
                    BackgroundColor="White"
                    CornerRadius="30" 
                Elevation="20"
             HeightRequest="160" IsClippedToBounds="True" VerticalOptions="FillAndExpand">
                <StackLayout Orientation="Horizontal">

                    <Grid VerticalOptions="CenterAndExpand"  
             Padding="0"  
             HorizontalOptions="FillAndExpand"  
             BackgroundColor="Transparent">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="35" />
                            <RowDefinition Height="25" />
                            <RowDefinition Height="25" />
                            <RowDefinition Height="35" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="100"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Frame Margin="10,5,5,-20"  CornerRadius="10" Grid.RowSpan="3"  BackgroundColor="LightBlue"  IsClippedToBounds="True">
                            <Image Margin="-70,-70,-70,-70"  Grid.Row="0" Grid.Column="0" Grid.RowSpan="4" Source="restaurantimage2.jpg" />
                        </Frame>
                        <Label Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="4" Margin="0,10,0,0"  TextColor="Black" FontFamily="Bold,100"  Text="Pesto restaurant" />
                        <Image Grid.Row="0" Grid.Column="5" Margin="0,10,0,0"   Source="whitehearticon3"/>
                        <Label Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="6"  Text="Bodhami Road, 6" TextColor="Blue"  />
                        <Label Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="6"  Text="Indian,Italy,Chinese Kitchen" />
                        <Image Grid.Row="3" Grid.Column="1"   Source="whitestaricon1"/>
                        <Label Grid.Row="3" Grid.Column="2" HeightRequest="30" Text="3,0" />

                        <Label Grid.Row="3" Grid.Column="4"  Grid.ColumnSpan="3"  Text="No available" TextColor="Blue" />
                    </Grid>
                </StackLayout>
            </xfx:XfxCardView>
                    <Label Text="RESTAURANTS AWAY FROM YOU" TextColor="#595959" HeightRequest="30"></Label>
                    <Label  Text="25 Restaurants finded" TextColor="#d9d9d9" HeightRequest="20"></Label>
                    <xfx:XfxCardView 
                    BackgroundColor="White"
                    CornerRadius="30" 
                Elevation="20"
             HeightRequest="160" IsClippedToBounds="True" VerticalOptions="FillAndExpand">
                        <StackLayout Orientation="Horizontal">

                            <Grid VerticalOptions="CenterAndExpand"  
             Padding="0"  
             HorizontalOptions="FillAndExpand"  
             BackgroundColor="Transparent">
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="25" />
                                    <RowDefinition Height="25" />
                                    <RowDefinition Height="25" />
                                    <RowDefinition Height="35" />
                                </Grid.RowDefinitions>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="100"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="*"/>
                                </Grid.ColumnDefinitions>
                                <Frame Margin="10,5,5,-20"  CornerRadius="10" Grid.RowSpan="3"  BackgroundColor="LightBlue"  IsClippedToBounds="True">
                                    <Image Margin="-70,-70,-70,-70"  Grid.Row="0" Grid.Column="0" Grid.RowSpan="4" Source="restaurantimage3.jpg" />
                                </Frame>
                                <Label Grid.Row="0" Grid.Column="1" Grid.ColumnSpan="4" Margin="0,10,0,0"  TextColor="Black" FontFamily="Bold,100"  Text="Hero" />
                                <Image Grid.Row="0" Grid.Column="5" Margin="0,10,0,0"  Source="whitehearticon3"/>
                                <Label Grid.Row="1" Grid.Column="1" Grid.ColumnSpan="6" Text="Line street,2" TextColor="Blue" />
                                <Label Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="6" Text="Indian,Italy,Chinese Kitchen" />
                                <Image Grid.Row="3" Grid.Column="1"   Source="whitestaricon1"/>
                                <Label Grid.Row="3" Grid.Column="2" HeightRequest="30" Text="4,3" />
                                <Image Grid.Row="3" Grid.Column="3" Margin="-10,0,0,0"   Source="rupeeicon1"/>
                                <Label Grid.Row="3" Grid.Column="4"  Margin="-10,0,0,0" Text="150 min" />
                                <Image Grid.Row="3" Grid.Column="5" Margin="-20,0,0,0"  Source="handicon1"/>
                                <Label Grid.Row="3" Grid.Column="6"  Margin="-10,0,0,0" HeightRequest="10" Text="Free 3kms" />
                            </Grid>
                        </StackLayout>
                    </xfx:XfxCardView>

                </StackLayout>
            </ScrollView>

我不知道我的代码有什么问题我将方向设置为垂直也将 VerticalOptions 设置为填充和扩展。滚动视图会起作用还是应该将 XfxCardview 放在 Listview 中。这就是我当前 UI 的样子

并且 UI 不会滚动到底部。

标签： imagexamarin.formsframescardview

解决方案

您的 xaml 看起来不错，请尝试检查几件事：

  1. 你没有被遗忘的滚动视图自定义渲染器，android 项目中包含禁用滚动

  2. 检查它是否在没有设置高度的情况下滚动，可能是一个错误

  3. 我可以想象的另一个“错误”：查看最后一张卡片：它可能只是没有达到 160 的高度，而是填充了父级，VerticalOptions="FillAndExpand"所以没有什么可以滚动的。并且卡片的内容被剪裁了，IsClippedToBounds="True"所以它没有Expand卡片。

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