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<STA
<StackLayout Orientation="Horizontal">
<Label FontSize="Medium">Enter Home Address</Label>
<CheckBox x:Name="sw1" IsVisible="False" CheckedChanged="sw1_CheckedChanged"></CheckBox>
</StackLayout>
</StackLayout>
</StackLayout>
Related
I am trying to manipulate a stacklayout but I cannot getting its name on controller to change it visible or not. How can I do that, is it works on Xamarin ?
Trying
<ContentPage.Content>
<StackLayout HorizontalOptions="FillAndExpand" Padding="2">
<StackLayout HorizontalOptions="FillAndExpand">
<Label Text="Compre agora seu número da sorte"
FontSize="Small"
TextColor="Gray"
FontAttributes="Bold"
HorizontalOptions="CenterAndExpand"
/>
</StackLayout>
<StackLayout HorizontalOptions="FillAndExpand">
<Label Text="Concurso" FontAttributes="Bold"></Label>
<Label x:Name="idConcurso"></Label>
<Label Text="Prêmio" FontAttributes="Bold"></Label>
<Label x:Name="premioNome"></Label>
</StackLayout>
<StackLayout HorizontalOptions="FillAndExpand">
<ListView x:Name="GridNumerosDaSorte"
SeparatorVisibility="Default"
HasUnevenRows="true"
ItemAppearing="OnItemAppearing"
>
<ListView.Header>
<StackLayout Orientation="Horizontal" BackgroundColor="#335D3B">
<Label Text="Nº da Sorte" TextColor="#FFF" HorizontalOptions="StartAndExpand" ></Label>
<Label Text="Valor(R$)" TextColor="#FFF" HorizontalOptions="CenterAndExpand" ></Label>
<Label Text="Controle" TextColor="#335D3B" HorizontalOptions="EndAndExpand" ></Label>
</StackLayout>
</ListView.Header>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" Margin="0,10,0,0">
<Label Text="{Binding numero}" HorizontalOptions="StartAndExpand"></Label>
<Label Text="{Binding valor, StringFormat='{}{0:N}'}" HorizontalOptions="EndAndExpand" ></Label>
<Button Text="Comprar" Clicked="OnComprarClick" CommandParameter="{Binding .}" HorizontalOptions="EndAndExpand" BackgroundColor="Orange"></Button>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
<StackLayout x:Name="FooterPanel" HorizontalOptions="FillAndExpand" IsVisible="False">
<Label Text="text 1" HorizontalOptions="StartAndExpand"></Label>
<Label Text="text 2" HorizontalOptions="CenterAndExpand"></Label>
<Label Text="text 3" HorizontalOptions="EndAndExpand"></Label>
</StackLayout>
</StackLayout>
</ContentPage.Content>
Controller
//x:Name does not appear on controller, it does not works
FooterPanel.isVisible = true;
In Xamarin.Android it has a class named ViewPager to support "Gestural navigation allows the user to swipe left and right to step through pages of data." (https://learn.microsoft.com/en-us/xamarin/android/user-interface/controls/view-pager/)
But my task is write cross-platform codes for both Android & iOS (without rewrite new code for this gesture). With Xamarin.Form does any library support this ? I have read about Xamarin.Form carousel, but it seem used for slideshow, not appropriate for news list.
I think TabbedPage is more suitable for you. tabbedPage support the Gestural navigation allows the user to swipe left and right to step through pages of data, just set the different pages of data in different tabs.
Here is running GIF.
You can add this Tabbedpage like following code.
<TabbedPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:TabbedPageDemo;assembly=TabbedPageDemo"
x:Class="TabbedPageDemo.TabbedPageDemoPage">
<TabbedPage.Resources>
<ResourceDictionary>
<local:NonNullToBooleanConverter x:Key="booleanConverter" />
</ResourceDictionary>
</TabbedPage.Resources>
<TabbedPage.ItemTemplate>
<DataTemplate>
<ContentPage Title="{Binding Name}" Icon="monkeyicon.png">
<StackLayout Padding="5, 25">
<Label Text="{Binding Name}"
Font="Bold,Large"
HorizontalOptions="Center" />
<Image Source="{Binding PhotoUrl}"
WidthRequest="200"
HeightRequest="200" />
<StackLayout Padding="50, 10">
<StackLayout Orientation="Horizontal">
<Label Text="Family:"
HorizontalOptions="FillAndExpand" />
<Label Text="{Binding Family}"
Font="Bold,Medium" />
</StackLayout>
<StackLayout Orientation="Horizontal"
IsVisible="{Binding Subfamily,
Converter={StaticResource booleanConverter}}">
<Label Text="Subfamily:"
HorizontalOptions="FillAndExpand" />
<Label Text="{Binding Subfamily}"
Font="Bold,Medium" />
</StackLayout>
<StackLayout Orientation="Horizontal"
IsVisible="{Binding Tribe,
Converter={StaticResource booleanConverter}}">
<Label Text="Tribe:"
HorizontalOptions="FillAndExpand" />
<Label Text="{Binding Tribe}"
Font="Bold,Medium" />
</StackLayout>
<StackLayout Orientation="Horizontal">
<Label Text="Genus:"
HorizontalOptions="FillAndExpand" />
<Label Text="{Binding Genus}"
Font="Bold,Medium" />
</StackLayout>
</StackLayout>
</StackLayout>
</ContentPage>
</DataTemplate>
</TabbedPage.ItemTemplate>
</TabbedPage>
You can add different ItemTemplate in the Tabbedpage.
Here is a related link.
https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/navigation/tabbed-page
Update: you can add the listview in the tabbpage like following GIF.
I'm working on a Xamarin Forms project using Visual studio 2017 , I want to add a border to the web view . with black color . how to do that view xaml is below .
<StackLayout Orientation="Vertical" BackgroundColor="White" HorizontalOptions="FillAndExpand">
<StackLayout Orientation="Horizontal" HeightRequest="60" HorizontalOptions="FillAndExpand" BackgroundColor="DarkBlue" Padding="5">
<Label x:Name="lblUserNewOnBoarding" WidthRequest="340" Text="New User Onboarding" FontAttributes="Bold" FontFamily="Roboto" FontSize="Large" TextColor="White"
HorizontalOptions="StartAndExpand" VerticalOptions="CenterAndExpand"></Label>
<Button x:Name="bntCancel" Text="Cancel" HeightRequest="40" BackgroundColor="#4184f3"
TextColor="White" HorizontalOptions="EndAndExpand" VerticalOptions="CenterAndExpand" Clicked="HandleCancle_Clicked" FontFamily="Roboto" FontSize="Small" FontAttributes="Bold">
<Button.Image>
<FileImageSource File="baseline_cancel_white_18dp.png" ></FileImageSource>
</Button.Image>
</Button>
</StackLayout>
<StackLayout Orientation="Vertical" HorizontalOptions="CenterAndExpand" >
<Label Text="Please agree to the following terms and conditions…" FontFamily="Roboto-Medium" FontSize="30"
HorizontalOptions="CenterAndExpand" WidthRequest="927" HeightRequest="168" Margin="5"
TextColor="Black"></Label>
<WebView x:Name="wvAgree" HeightRequest="300" WidthRequest="400" Margin="50" BackgroundColor="White" ></WebView>
<Button x:Name="btnAgree" Text="Agree" WidthRequest="190" HeightRequest="50" AnchorX="417" AnchorY="604"
BackgroundColor="#4184f3" TextColor="White" HorizontalOptions="Center" VerticalOptions="CenterAndExpand" Clicked="HandleAgree_Clicked" FontFamily="Roboto" FontSize="Small" FontAttributes="Bold">
<Button.Image >
<FileImageSource File="Agree.png"></FileImageSource>
</Button.Image>
</Button>
<Button x:Name="btnDisAgree" Text="Disagree" WidthRequest="190" HeightRequest="50" AnchorX="417" AnchorY="673" BackgroundColor="#4184f3"
TextColor="White" HorizontalOptions="Center" VerticalOptions="CenterAndExpand" Clicked="HandleDisAgree_Clicked" FontFamily="Roboto" FontSize="Small" FontAttributes="Bold">
<Button.Image>
<FileImageSource File="baseline_delete_48.png" ></FileImageSource>
</Button.Image>
</Button>
</StackLayout>
</StackLayout>
Wrap your WebView around Frame. So:
<Frame OutlineColor="Black">
<WebView x:Name="wvAgree" HeightRequest="300" WidthRequest="400" Margin="50" BackgroundColor="White"/>
</Frame>
Also you dont have to write a Additional closing Tag if you dont put anything between it. Pay attention how I closed that WebView tag.
I have little difficult problem for me with ListView.
1) I have this graphics https://ibb.co/j6wdk71
2) I have done it but with *ngFor’s
<ActionBarLogo (myEvent)="onDrawerButtonTap($event)"></ActionBarLogo>
<RadSideDrawer #drawer showOverNavigation="false" gesturesEnabled="{{android}}" [drawerTransition]="sideDrawerTransition">
<StackLayout tkDrawerContent class="drawer">
<MyDrawer [selectedPage]="'Home'"></MyDrawer>
</StackLayout>
<GridLayout rows="*, auto" class="page page-content" tkMainContent>
<StackLayout class="fade-in" row="0" orientation="vertical" *ngIf="loading==false && network_error==false">
<StackLayout>
<PullToRefresh (refresh)="refreshList($event)">
<ScrollView orientation="vertical">
<StackLayout>
<StackLayout>
<ScrollView orientation="horizontal" scrollBarIndicatorVisible="false">
<StackLayout orientation="horizontal" class="games">
<StackLayout class="game" width="{{screen_width}}" *ngFor="let game of games">
<StackLayout class="game-inner">
<StackLayout class="game-date">
<Label text="{{game.league}}, {{game.round}}. kolo" class="game-round"></Label>
<Label text="{{ game.date | format_date }}" class="game-date-text"></Label>
</StackLayout>
<StackLayout class="game-data">
<FlexboxLayout flexDirection="row">
<StackLayout flexGrow="1" class="game-team">
<WebImage src="{{game.team_home.logo}}" height="40" class="game-team-logo"></WebImage>
<Label text="{{game.team_home.name}}" textWrap="true" class="game-team-name"></Label>
</StackLayout>
<StackLayout flexGrow="1" class="game-score">
<Label class="game-score-inner" text="-:-" textWrap="true" *ngIf="game.score==null"></Label>
<Label class="game-score-inner" text="{{game.score}}" textWrap="true" *ngIf="game.score!=null"></Label>
</StackLayout>
<StackLayout flexGrow="1" class="game-team">
<WebImage src="{{game.team_away.logo}}" height="40" class="game-team-logo"></WebImage>
<Label text="{{game.team_away.name}}" textWrap="true" class="game-team-name"></Label>
</StackLayout>
</FlexboxLayout>
</StackLayout>
<StackLayout class="game-button" orientation="horizontal" horizontalAlignment="center" [nsRouterLink]="['/game', game.id]"
pageTransition="flip">
<WebImage src="~/assets/menu_icons/matches.png" width="15"></WebImage>
<Label text="informácie o zápase" class="game-button-btn"></Label>
</StackLayout>
</StackLayout>
</StackLayout>
</StackLayout>
</ScrollView>
</StackLayout>
<StackLayout>
<StackLayout class="hp-partners">
<StackLayout class="hp-partners-heading">
<Label text="Partneri klubu"></Label>
</StackLayout>
<FlexboxLayout flexDirection="row">
<StackLayout class="partner" *ngFor="let partner of partners">
<WebImage src="{{partner.img_url}}" stretch="aspectFit" width="100%" class="partner-image" (tap)="open_url(partner.url)"></WebImage>
</StackLayout>
</FlexboxLayout>
</StackLayout>
<StackLayout class="articles-list">
<StackLayout class="article" [nsRouterLink]="['/article', article.id]" pageTransition="slideLeft" *ngFor="let article of articles, let i=index">
<StackLayout class="article-photo">
<WebImage src="{{article.photo}}" stretch="aspectFill" placeholder="~/assets/placeholder.png" class="article-photo-image"></WebImage>
</StackLayout>
<StackLayout class="article-body">
<StackLayout class="article-data">
<FlexboxLayout flexDirection="row">
<StackLayout class="article-date" orientation="horizontal">
<WebImage src="~/assets/menu_icons/date.png" class="article-date-ico"></WebImage>
<Label text="{{ article.date | format_date }}" class="article-date-text"></Label>
</StackLayout>
<StackLayout class="article-sticker" orientation="horizontal">
<WebImage src="~/assets/menu_icons/tag.png" class="article-sticker-ico"></WebImage>
<Label text="{{article.category}}" class="article-sticker-text"></Label>
</StackLayout>
<StackLayout class="article-stickers" flexGrow="1" orientation="horizontal">
<WebImage src="~/assets/article_stickers/text.png" class="article-stickers-image" *ngIf="article.sticker_text==true"></WebImage>
<WebImage src="~/assets/article_stickers/video.png" class="article-stickers-image" *ngIf="article.sticker_video==true"></WebImage>
<WebImage src="~/assets/article_stickers/photo.png" class="article-stickers-image" *ngIf="article.sticker_photogallery==true"></WebImage>
</StackLayout>
</FlexboxLayout>
</StackLayout>
<StackLayout class="article-heading">
<Label text="{{article.heading}}" class="article-heading-text" textWrap="true"></Label>
</StackLayout>
</StackLayout>
<StackLayout *ngIf="i==330">
<StackLayout class="banner" *ngFor="let banner of banners">
<WebImage src="{{banner.image}}" stretch="aspectFit" width="100%" class="banner-image" (tap)="open_url(banner.url)"></WebImage>
</StackLayout>
</StackLayout>
</StackLayout>
</StackLayout>
<StackLayout class="load-more-button">
<Button class="btn btn-primary" text="Načítať ďalšie" (tap)="load_more_articles()" *ngIf="loading_more_articles==false"></Button>
<LoadingSmall *ngIf="loading_more_articles==true"></LoadingSmall>
</StackLayout>
</StackLayout>
</StackLayout>
</ScrollView>
</PullToRefresh>
</StackLayout>
</StackLayout>
<Loading *ngIf="loading==true && network_error==false"></Loading>
<StackLayout height="100%" (tap)="check_connection()" *ngIf="network_error==true">
<NetworkError></NetworkError>
</StackLayout>
<Tabs></Tabs>
</GridLayout>
</RadSideDrawer>
3) This is how I want it. (uses *ngFor) https://www.youtube.com/watch?v=z5CY_R6OAmI&feature=youtu.be1
4) Performance is very bad on android and app is crashing (iOS is great as usual)
5) I need everything transform to ListView
6) I really don’t know how. I read doc, google for done examples and I can’t find solution which would solve my problem.
7)I made simple template in playground https://play.nativescript.org/?template=play-ng&id=Rhw4HJ&v=21
Is possible to give me some advice or edit playground example to show how to do it?
Could someone help me find solution? I will really appreciate it. :frowning:
Thank you so much
It seems that there is a confirmed Bug in Xamarin.Forms in iOS, when you have a content/label with a text too large that needs 2 lines to display it in a StackLayout (lets say layoutA), the others siblings and parent elements takes the width of the layoutA.
Kent Boogaart filled a Bug with the following example to reproduce the error.
<StackLayout Margin="0,20,0,0">
<!-- works (by virtue of no wrapping) -->
<StackLayout Orientation="Horizontal">
<Switch/>
<Label Text="Some text"/>
<Button Text="A Button" HorizontalOptions="EndAndExpand"/>
</StackLayout>
<!-- works (by virtue of no switch) -->
<StackLayout Orientation="Horizontal">
<Label Text="Some longer text that wraps over two lines"/>
<Button Text="A Button" HorizontalOptions="EndAndExpand"/>
</StackLayout>
<!-- does not work -->
<StackLayout Orientation="Horizontal">
<Switch/>
<Label Text="Some longer text that wraps over two lines"/>
<Button Text="A Button" HorizontalOptions="EndAndExpand"/>
</StackLayout>
</StackLayout>
Is there a solution/fix/workaround for this problem?
EDIT
Here is the code used:
<ListView HasUnevenRows="True" SeparatorVisibility="None" HorizontalOptions="StartAndExpand" CachingStrategy="RecycleElement">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" BackgroundColor="#eee" Padding="5" Margin="5" >
<ffimageloading:CachedImage HorizontalOptions="Start" VerticalOptions="Start" HeightRequest="75" Source="{Binding ID, StringFormat='https://example/api/{0}'}" CacheDuration="15">
<ffimageloading:CachedImage.Transformations>
<fftransformations:CircleTransformation/>
</ffimageloading:CachedImage.Transformations>
</ffimageloading:CachedImage>
<StackLayout Orientation="Vertical" HorizontalOptions="FillAndExpand">
<Label Text="{Binding Name}" TextColor="#f35e20" HorizontalOptions="FillAndExpand"/>
<Label Text="{Binding Description}" HorizontalOptions="FillAndExpand" TextColor="#503026" />
<Label Text="{Binding ID}" x:Name="ID" IsVisible="False"></Label>
<Button Text="Ver productos" TextColor="#FF5F6D" HorizontalOptions="End" BackgroundColor="Transparent"></Button>
</StackLayout>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
These are actual screenshots of the app in iOS, in Android it just work great.
As you can see, in the Image1 the first card is OK, the button ("Agregar al carrito" or "Ver Productos") is at the end.
But in the second card as the text is too large, the button gets down out of the card.
And in the second image, the text in the middle needs 2 lines, and the StackLayout that wraps the content (the 2 labels and the button) gets just as wide as the label with the large text.
I draw a red square in the large text, and a red line so you can see that because of that large text, the StackLayout gets narrow.
This is a known issue that when setting the padding on stacklayout inside Cell , the row height displays incorrectly.
Solution: Use StackLayout to wrap the content under the Cell.
<ViewCell>
<StackLayout > //add this
<StackLayout Orientation="Horizontal" Padding="5" Margin="5" >
</ffimageloading:CachedImage>
<StackLayout BackgroundColor="Brown" Orientation="Vertical">
<Label TextColor="#f35e20" HorizontalOptions="FillAndExpand"/>
<Label/>
<Label Text="fff" x:Name="ID" IsVisible="False"></Label>
<Button Text="Ver productos" TextColor="#FF5F6D" BackgroundColor="Yellow"></Button>
</StackLayout>
</StackLayout>
</StackLayout>
</ViewCell>