I am trying to achieve a list of Card-like records for the timeline on an application built in Xamarin.Forms, this is the layout that more or less I need to replicate:
I think I am close, I have two records on my code behind that I assign as the ItemSource to a listView on the XAML side, and this is my result so far:
But as you can see, the elements are not showing at all inside their frame, if I replace the form controls with TextCells or ImageCells, the data shows fine. This is the XAML code I have so far:
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage Title="AudioBitts"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:AudioBitts"
x:Class="AudioBitts.TimelinePage">
<ListView x:Name="listView">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell Height="300">
<Frame HasShadow="true" Margin="5">
<StackLayout>
<StackLayout Orientation="Horizontal">
<Image Source="{Binding UserAvatar}" />
<Label Text="{Binding UserName}" />
</StackLayout>
<Image Source="{Binding BittImage}" />
</StackLayout>
</Frame>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</ContentPage>
Am I missing something on the structure I am giving to my XAML code? Thanks!
You can set ListView.RowHeight or set ListView.HasUnevenRow to allow the data to be displayed in full.
Related
I have the following code.
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:d="http://xamarin.com/schemas/2014/forms/design"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
x:Class="NGIC_XAML.Views.Payments.Payments">
<ContentPage.Content>
<FlexLayout Direction="Column" AlignItems="Center" HorizontalOptions="FillAndExpand">
<StackLayout BackgroundColor="Red" HeightRequest="108" HorizontalOptions="FillAndExpand">
<Label Text="Payments" TextColor="#F9F8FA" FontSize="20" Margin="40"
HorizontalTextAlignment="Center" VerticalOptions="Center"
HorizontalOptions="FillAndExpand">
</Label>
</StackLayout>
</FlexLayout>
</ContentPage.Content>
</ContentPage>
I want the outer layout, the FlexLayout, to automatically size the width to the device's maximum. I want the Layout (the StackLayout) and child Control (the Label), to also automatically resize their widths to the FlexLayout. I am stumped as to how to do this. Any suggestions?
In the FlexLayout docs, they mention "The HorizontalOptions property doesn't work for children of a FlexLayout".
If you take a look at the Page layout with FlexLayout section (Holy Grail Layout) you can see an example somewhat similar to what you are trying to accomplish, basically use a nested FlexLayout instead of a StackLayout.
The code would look like:
<ContentPage.Content>
<FlexLayout
BackgroundColor="Yellow"
Direction="Column">
<FlexLayout
HeightRequest="108"
AlignItems="Center"
Direction="Column"
BackgroundColor="Red">
<Label
BackgroundColor="Green"
LineBreakMode="CharacterWrap"
Text="Payments"
TextColor="#F9F8FA"
FontSize="20"
Margin="40"
HorizontalTextAlignment="Center"
VerticalOptions="Center">
</Label>
</FlexLayout>
</FlexLayout>
</ContentPage.Content>
And here is the screenshot:
Notice that the label will grow as needed to use the full width of the row.
To achieve this, please assign HorizontalOptions="FillAndExpand" to StackLayout and Label and other child controls if any.
This will tell the controls to fill all the space available horizontally.
Thanks!
Im using xamarin forms.
i wanna design my xaml files but i realized something strange.
left and right of entry has space that i couldnt remove even with custom renderer.
is there any idea what is might be?
i tried padding,margin,HorizontalOption none of them effected.
even i tried to setPadding to 0 from custom renderer in android but it didnt work.
the first one is label as you can see filled out all the space but entry has an space around it .
Update:
this is my xaml codes and im using android emulator to test.
<StackLayout BackgroundColor="White" Spacing="15">
<Label Text="fds" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" BackgroundColor="Red"/>
<Entry BackgroundColor="Red" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand"/>
</StackLayout>
don't know how is your implementation but this what I tried:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage
xmlns:bases="clr-namespace:WhiteSolution.Views.Bases"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:viewModelBase="clr-namespace:WhiteSolution.ViewModels.Bases"
viewModelBase:ViewModelLocator.AutoWireViewModel="True"
x:Class="WhiteSolution.Views.HomePage">
<ContentPage.Content>
<Grid VerticalOptions="FillAndExpand"
BackgroundColor="WhiteSmoke">
<StackLayout Padding="0"
Spacing="0"
BackgroundColor="Blue">
<Label Text="no space label"
Margin="0"
HorizontalOptions="FillAndExpand"
HorizontalTextAlignment="Center"
BackgroundColor="Yellow"
FontSize="Large"/>
<Entry Text="no space entry"
Margin="0"
BackgroundColor="Red"
HorizontalOptions="FillAndExpand"
HorizontalTextAlignment="Center"
FontSize="Large"/>
</StackLayout>
</Grid>
</ContentPage.Content>
</ContentPage>
and i get this result
if you share your code it will be more useful
Try this, Padding Property should be 0 in main StackLayout.
<?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="SampleApp.Views.DashboardView">
<ContentPage.Content>
<StackLayout Padding="0" BindingContext="{Binding Dashboard}">
<!-- Controls -->
</StackLayout>
</ContentPage.Content>
I realized that entry has Default margin value. so i set it to 0 and everything worked.
here is my code
<StackLayout>
<Entry Margin="0" Text="fd" BackgroundColor="Red" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand"/>
<Label Text="fd" BackgroundColor="Red" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand"/>
</StackLayout>
I'm using a content view page called CardViewTemplate.xaml in my ListView to render some content with two frames, one of them should be visible and the other not, at the same time.
<ContentView xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
...>
<Frame IsVisible="{Binding IsNotBreak}" IsClippedToBounds="True">
.... content ....
</Frame>
<Frame IsVisible="{Binding IsBreak}" IsClippedToBounds="True">
--content 2-
</Frame>
</ContentView>
and the above page used in list view to bind and view some data to listview like below code:
<ListView x:Name="listView" SelectedItem="{Binding SelcetedItem,Mode=TwoWay}"
RowHeight="-1"
ItemsSource="{Binding SelectedCard}" HasUnevenRows="True" >
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Custom:CardViewTemplate/>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
Unexpectedly my list view shows only the second frame and it looks like attached image:
That is because ContentView is supposed to have only one child, and the second Frame is overriding the first Frame.
Try adding a view-container like AbsoluteLayout, or Grid to hold the two frame(s) inside ContentView:
<ContentView xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
...>
<AbsoluteLayout>
<Frame IsVisible="{Binding IsNotBreak}" IsClippedToBounds="True">
.... content ....
</Frame>
<Frame IsVisible="{Binding IsBreak}" IsClippedToBounds="True">
--content 2-
</Frame>
</AbsoluteLayout>
</ContentView>
I want to do a Cell with a yellow background and one orange box with a text and after an image with a medium size, but it doesn't work. The image doesn't appear big and I can't use a margin
This is my 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="neoFly_Montana.Views.PromocoesView"
BackgroundImage="promocoesbackground"
Title="Promoções">
<ContentPage.Content>
<ListView x:Name="listview_promocoes" Margin="0, 20, 0, 0 ">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout BackgroundColor="AliceBlue" HorizontalOptions="Center" VerticalOptions="FillAndExpand">
<Label Text="{Binding titulo}" Style="{StaticResource labelsfont}"/>
<Image Source="{Binding imagem}" Aspect="AspectFill"/>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</ContentPage.Content>
This is the bad result (with 2 item - u can't see the image)
I want to do something like this but I can't use margin because when I use it, the app doesn't work.
It needs to be one item of a ListView.
All items should be like this.
How can I do that?
Thank you.
You can get that Layout in your ListView item with something like this:
<ListView
RowHeight="170"
ItemsSource="{Binding Items}">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<!-- Outter box containing two boxes -->
<StackLayout
VerticalOptions="FillAndExpand">
<!-- First box with Title, Image and Text -->
<StackLayout
VerticalOptions="FillAndExpand"
Padding="10, 5"
BackgroundColor="Yellow">
<Label
Text="YOUR_TITLE"
BackgroundColor="Silver"/>
<Image
HorizontalOptions="FillAndExpand"
BackgroundColor="Fuchsia"
HeightRequest="60" />
<Label
Text="YOUR_OTHER_TEXT"
BackgroundColor="Silver"/>
</StackLayout>
<!-- Second box with Text -->
<StackLayout
VerticalOptions="End"
Margin="0, 8, 0, 0"
Padding="10, 5"
BackgroundColor="Lime">
<Label
Text="YOUR_TEXT_OTHER_BOX"
BackgroundColor="Silver"/>
</StackLayout>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I guess you might need to do a few little changes to get it exactly as you want it but this is pretty close.
Result:
Hope this helps.-
Currently, I am developing a Xamarin.Forms PCL application for Android and iOS. In one of my pages I define a ListView. The template for the ListView.ItemTemplate displays an icon using <Image Source="some_Icon.png" />. The icon displays as expected (black) but I have not found a way to set the color.
I would like to colorize this icon based on logic in my ViewModel.
I have searched for answers both through the Documentation and StackOverlflow to no avail.
Is there a better way to display and style icons from a Xamarin.Forms PCL project?
Does Xamarin.Forms require a set of resource/image files for every possible color I might use?
I solved my problem with Iconize for Xamarin.Forms. I implemented my solution based off the Iconize sample code below.
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:iconize="clr-namespace:FormsPlugin.Iconize;assembly=FormsPlugin.Iconize"
x:Class="Iconize.FormsSample.Page1"
Title="{Binding FontFamily}">
<ContentPage.ToolbarItems>
<iconize:IconToolbarItem Command="{Binding ModalTestCommand}" Icon="fa-500px" />
<iconize:IconToolbarItem Command="{Binding VisibleTestCommand}" Icon="fa-500px" IconColor="Red" />
<iconize:IconToolbarItem Command="{Binding VisibleTestCommand}" Icon="fa-500px" IsVisible="{Binding VisibleTest}" />
</ContentPage.ToolbarItems>
<ListView CachingStrategy="RecycleElement" ItemsSource="{Binding Characters}">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal">
<iconize:IconImage HeightRequest="20" Icon="{Binding Key}" IconColor="Blue" WidthRequest="20" />
<iconize:IconImage HeightRequest="20" Icon="{Binding Key}" BackgroundColor="Blue" IconColor="Yellow" WidthRequest="20" IconSize="10" />
<iconize:IconButton FontSize="20" Text="{Binding Key}" TextColor="Red" WidthRequest="48" />
<iconize:IconLabel FontSize="20" Text="{Binding Key}" TextColor="Green" VerticalTextAlignment="Center" />
<Label Text="{Binding Key}" VerticalTextAlignment="Center" />
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</ContentPage>
In my case, I simply had to replace my original <Image .../> element and replace it with
<iconize:IconImage HeightRequest="20" Icon="fa-circle" IconColor="{Binding CircleColor}" WidthRequest="20" />.
In my ViewModel, I added the CircleColor property to set the icon color as needed based on my logic.