我有一个列表视图绑定图像&文本。我一直试图在这个页面的右下方添加一个浮动按钮,但无济于事。做了一些研究,但似乎仍然没有明确的解决方案。谁知道我怎么能实现这个?在我的xaml代码中,我已经展示了我尝试过的内容。
我的xaml
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="LoyaltyWorx.Page1"
Title="Stores">
<ContentPage.ToolbarItems>
<ToolbarItem Text="About"
Icon="ic_action_more_vert.png"
Priority="0"
Order="Secondary"
Clicked="ToolbarItem_Clicked"/>
<ToolbarItem Text="Settings"
Icon="ic_action_more_vert.png"
Priority="0"
Order="Secondary"/>
</ContentPage.ToolbarItems>
<ListView x:Name="MainListView" HasUnevenRows="True" ItemTapped="MainListView_ItemTapped" SeparatorColor="DarkGray">
<ListView.ItemTemplate>
<DataTemplate>
<ImageCell ImageSource="{Binding Image}" Text="{Binding Name}" TextColor="Black" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
***//here is what I attempted but the image just covers the whole page***
<Image Source="add.png"
VerticalOptions="FillAndExpand"
HorizontalOptions="FillAndExpand"
HeightRequest="0"
WidthRequest="0"
AbsoluteLayout.LayoutBounds="1,.99, 65, 65"
AbsoluteLayout.LayoutFlags="PositionProportional" >
<Image.GestureRecognizers>
<TapGestureRecognizer
Command="{Binding clickNewCard}"
CommandParameter="3" />
</Image.GestureRecognizers>
</Image>
</ContentPage>
答案 0 :(得分:1)
(抱歉英语不好)
这里存在很多问题:
VerticalOptions="FillAndExpand"
和HorizontalOptions="FillAndExpand"
设置为图片视图,而实际上此属性应位于ListView上。 This topic与LayoutOptions有关。试试这种方式并告诉我它是否适合你:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="LoyaltyWorx.Page1"
Title="Stores">
<ContentPage.ToolbarItems>
<ToolbarItem Text="About"
Icon="ic_action_more_vert.png"
Priority="0"
Order="Secondary"
Clicked="ToolbarItem_Clicked"/>
<ToolbarItem Text="Settings"
Icon="ic_action_more_vert.png"
Priority="0"
Order="Secondary"/>
</ContentPage.ToolbarItems>
<Grid>
<ListView Grid.Column="0" Grid.Row="0"
x:Name="MainListView"
HasUnevenRows="True"
VerticalOptions="FillAndExpand"
HorizontalOptions="FillAndExpand"
ItemTapped="MainListView_ItemTapped"
SeparatorColor="DarkGray">
<ListView.ItemTemplate>
<DataTemplate>
<ImageCell ImageSource="{Binding Image}"
Text="{Binding Name}"
TextColor="Black" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
<Image Grid.Column="0" Grid.Row="0"
Source="add.png"
HorizontalOptions="EndAndExpand"
VerticalOptions="EndAndExpand"
Margin="0,0,30,30"
HeightRequest="0"
WidthRequest="0" >
<Image.GestureRecognizers>
<TapGestureRecognizer
Command="{Binding clickNewCard}"
CommandParameter="3" />
</Image.GestureRecognizers>
</Image>
</Grid>
</ContentPage>