LinearGradientBrush Experimental initialization problem - c#

Hello I got an error while doing login page. I just code Mainpage.xaml file other files are default and I picked "blank" when creating project.
My error is:
" System.InvalidOperationException: "The class, property, or method you are attempting to use ("GradientBrush" is part of GradientBrush; to use it, you must opt-in by calling Forms.SetFlags("Brush_Experimental") before calling Forms.Init()."
I just write one file which is Mainpage.xaml. Does anybody help me how to handle my problem?
<?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="HealthCareApp.MainPage">
<StackLayout>
<StackLayout.Background>
<LinearGradientBrush EndPoint="0,1">
<GradientStop Color="#48b6a6" Offset="0.1" />
<GradientStop Color="#2b78d4" Offset="1.0" />
</LinearGradientBrush>
</StackLayout.Background>
<StackLayout Padding="0" Margin="10,100,10,0" HorizontalOptions="FillAndExpand" >
<Frame BackgroundColor="Transparent" HeightRequest="500" Padding="0" Margin="0">
<StackLayout>
<StackLayout Margin="10">
<Label Text="SIGN IN" TextColor="White" HorizontalOptions="CenterAndExpand" FontAttributes="Bold" ></Label>
</StackLayout>
<StackLayout Padding="0" Margin="15,10">
<Frame BackgroundColor="Transparent" BorderColor="White" Padding="0" HorizontalOptions="FillAndExpand" CornerRadius="30">
<StackLayout Orientation="Horizontal">
<Frame BackgroundColor="SkyBlue" HeightRequest="40" WidthRequest="40" CornerRadius="30" Padding="0" Margin="5">
<Image Source="https://www.findool.com/images/avatars/avatar.png" Aspect="AspectFill" Margin="0"/>
</Frame>
<Entry Placeholder="Email" TextColor="#666666" FontAttributes="None" HorizontalOptions="FillAndExpand" Margin="0,0,20,0"/>
</StackLayout>
</Frame>
<Frame BackgroundColor="Transparent" BorderColor="White" Margin="0,15,0,0" Padding="0" HorizontalOptions="FillAndExpand" CornerRadius="30">
<StackLayout Orientation="Horizontal">
<Frame BackgroundColor="SkyBlue" HeightRequest="40" WidthRequest="40" CornerRadius="30" Padding="0" Margin="5">
<Image Source="https://images.all-free-download.com/images/graphicthumb/lock_icon_6813906.jpg" Aspect="AspectFill" Margin="0"/>
</Frame>
<Entry Placeholder="Password" IsPassword="True" TextColor="White" FontAttributes="None" HorizontalOptions="FillAndExpand" Margin="0,0,20,0"/>
</StackLayout>
</Frame>
<StackLayout Orientation="Horizontal">
<CheckBox IsChecked="False" Color="White" />
<Label Text="Remember me" TextColor="White" FontSize="Small" VerticalTextAlignment="Center" HorizontalTextAlignment="Center" />
<Label Text="Forgot Password" TextColor="White" FontAttributes="Bold" HorizontalOptions="EndAndExpand" FontSize="Small" VerticalTextAlignment="Center" HorizontalTextAlignment="Center" />
</StackLayout>
<Button Text="SIGN IN" BackgroundColor="#2b78d4" TextColor="White" CornerRadius="30" />
<StackLayout Orientation="Horizontal" HorizontalOptions="CenterAndExpand">
<Label Text="Still Not Connected ?" TextColor="White" FontSize="Small"/>
<Label Text="Sign Up" TextColor="White" FontAttributes="Bold" FontSize="Small"/>
</StackLayout>
<StackLayout Margin="0,25,0,0" Padding="0">
<Grid>
<BoxView BackgroundColor="White" HeightRequest="1" WidthRequest="150" HorizontalOptions="Center" VerticalOptions="Center"/>
<Frame BackgroundColor="White" HeightRequest="45" WidthRequest="45" CornerRadius="45" HasShadow="False" BorderColor="White" Margin="0" HorizontalOptions="Center" Padding="0">
<Label Text="OR" TextColor="White" FontSize="Small" VerticalTextAlignment="Center" HorizontalTextAlignment="Center"/>
</Frame>
</Grid>
</StackLayout>
<StackLayout Margin="0,25" Orientation="Horizontal" HorizontalOptions="CenterAndExpand">
<Frame BackgroundColor="White" HeightRequest="45" WidthRequest="45" CornerRadius="45" HasShadow="False" BorderColor="White" Margin="0" HorizontalOptions="Center" Padding="0">
<Image Source="https://www.pngitem.com/pimgs/m/44-440455_transparent-background-fb-logo-hd-png-download.png" Aspect="AspectFill" Margin="0"/>
</Frame>
<Frame BackgroundColor="White" HeightRequest="45" WidthRequest="45" CornerRadius="45" HasShadow="False" BorderColor="White" Margin="0" HorizontalOptions="Center" Padding="0">
<Image Source="https://blog.hubspot.com/hubfs/image8-2.jpg" Aspect="AspectFill" Margin="0"/>
</Frame>
</StackLayout>
</StackLayout>
</StackLayout>
</Frame >
</StackLayout>
</StackLayout >
</ContentPage>

According to the documentation you need to set up experimental flags (In your target platforms projects) for some features that the development team is judging still in experimental phase, so that you acknowledge that before using them.
On android in will be in your MainActivity class, on ios in AppDelegate Class:
Forms.SetFlags("Brush_Experimental")
You can set several experimental flags at once like:
Xamarin.Forms.Forms.SetFlags(new string[] { "SwipeView_Experimental", "Shapes_Experimental", "AppTheme_Experimental" });
Note
Make sure to call SetFlags() before Xamarin.Forms.Forms.Init()

Related

Blank Space Visible on Xamarin Forms iOS Only

Problem with listview on Xamarin Forms iOS
Hello, I have a cross-platform app, I put a ListView with some items, on android it's all right, but on iOS there's a blank space that I'm not able to correct...
I've already reviewed the code and I can't find what's wrong.
Has anyone seen this error or already gone through it?
Here is my image:
Blank is my content page.
Yellow is my ListView.
The blue square is the blank space I can't remove.
Red is the header of my list.
Here is my code:
XAML
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage
x:Class="MensagemDoDia.Views.MensagemViews.MensagemDetailPage"
xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:extended="clr-namespace:MensagemDoDia.Engine.InfiniteScrolling"
xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
xmlns:pancake="clr-namespace:Xamarin.Forms.PancakeView;assembly=Xamarin.Forms.PancakeView"
ios:Page.UseSafeArea="True">
<ContentPage.Content>
<Grid>
<ListView
BackgroundColor="Yellow"
CachingStrategy="RecycleElement"
HasUnevenRows="True"
ItemSelected="ListView_ItemSelected"
ItemsSource="{Binding ListaMensagem}"
Scrolled="ListView_Scrolled"
SeparatorVisibility="None">
<ListView.Behaviors>
<extended:InfiniteScrollBehavior IsLoadingMore="{Binding IsBusy}" />
</ListView.Behaviors>
<ListView.Header>
<StackLayout
Margin="{OnPlatform Android='10,0,10,0',
iOS='10,0,10,0'}"
BackgroundColor="Red"
HeightRequest="{OnPlatform Android=80,
iOS=70}"
Orientation="Horizontal">
<Button
Clicked="ButtonVoltar_Clicked"
Style="{StaticResource ButtonVoltarStyle}"
Text="{StaticResource FontAwesome_ArrowLeft}"
VerticalOptions="Center" />
<Label
x:Name="LabelNomeCategoria"
FontSize="Medium"
Opacity="0.7"
Style="{StaticResource LabelBoldStyle}"
VerticalTextAlignment="Center" />
</StackLayout>
</ListView.Header>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<pancake:PancakeView
Margin="10,5"
Padding="0"
BackgroundColor="WhiteSmoke"
CornerRadius="15"
VerticalOptions="CenterAndExpand">
<pancake:PancakeView.Shadow>
<pancake:DropShadow BlurRadius="1" Color="Black" />
</pancake:PancakeView.Shadow>
<Grid RowDefinitions="*, 50" RowSpacing="0">
<Frame
Padding="0"
BackgroundColor="Gray"
CornerRadius="15"
HasShadow="False"
HorizontalOptions="FillAndExpand"
VerticalOptions="FillAndExpand">
<Grid>
<Label
Margin="20,30"
FontAttributes="Bold"
FontSize="Medium"
HorizontalOptions="FillAndExpand"
HorizontalTextAlignment="Center"
Style="{StaticResource LabelMediumStyle}"
Text="{Binding MensagemTexto}"
TextColor="White"
TextType="Html"
VerticalOptions="FillAndExpand"
VerticalTextAlignment="Center" />
</Grid>
</Frame>
<Grid
Grid.Row="1"
ColumnDefinitions="*, auto, auto, auto"
ColumnSpacing="0">
<Label
Margin="15,0,0,0"
AutomationId="{Binding MensagemAutor}"
FontSize="Small"
HorizontalTextAlignment="Start"
LineBreakMode="TailTruncation"
MaxLines="1"
Opacity="0.7"
Style="{StaticResource LabelStyle}"
Text="{Binding MensagemAutor}"
TextColor="Black"
VerticalTextAlignment="Center">
<Label.GestureRecognizers>
<TapGestureRecognizer Tapped="LabelAutor_Tapped" />
</Label.GestureRecognizers>
</Label>
<Button
Grid.Column="1"
AutomationId="{Binding Chave}"
Clicked="ButtonCopiarMensagem_Clicked"
CornerRadius="15"
FontFamily="{StaticResource FontAwesome}"
FontSize="Medium"
Style="{StaticResource ButtonIconeStyle}"
Text="{StaticResource FontAwesome_Paste}"
VerticalOptions="CenterAndExpand"
WidthRequest="45" />
<Button
x:Name="ButtonCompartilhar"
Grid.Column="2"
AutomationId="{Binding Chave}"
Clicked="ButtonCompartilhar_Clicked"
CornerRadius="15"
FontFamily="{StaticResource FontAwesome}"
FontSize="Medium"
Style="{StaticResource ButtonIconeStyle}"
Text="{StaticResource FontAwesome_ShareAll}"
VerticalOptions="CenterAndExpand"
WidthRequest="45" />
<Button
x:Name="ButtonFavorito"
Grid.Column="3"
Margin="0,0,5,0"
Clicked="ButtonFavoritar_Clicked"
CornerRadius="15"
FontFamily="{StaticResource FontAwesome}"
FontSize="Medium"
HorizontalOptions="EndAndExpand"
Style="{StaticResource ButtonIconeStyle}"
Text="{StaticResource FontAwesome_Heart}"
VerticalOptions="CenterAndExpand"
WidthRequest="45" />
</Grid>
</Grid>
</pancake:PancakeView>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.Footer>
<Grid Padding="6" IsVisible="{Binding IsBusy}">
<Grid.Triggers>
<Trigger TargetType="Grid" Property="IsVisible" Value="False">
<Setter Property="HeightRequest" Value="0" />
</Trigger>
</Grid.Triggers>
<Label
HorizontalOptions="Center"
Text="Loading..."
VerticalOptions="Center" />
</Grid>
</ListView.Footer>
</ListView>
</Grid>
</ContentPage.Content>
</ContentPage>
Add VerticalAlignment to the ListView and set it to be either Top or Stretch. Possibly do the same for StackLayout.
You can optionally remove the parent Grid if it is not holding other items than the ListView; hence making the ListView the sole child of the ContentPage which is valid.

How can i use table view and picker as user input?

I would like to create a page like this: [1]: https://imgur.com/YreKQi3. But picker comes with underline and i also am not being able to display table separator line.
I tried to use tableview inside a frame but it didnt work. because frame's width is larger than table and seperator becomes invisible.
<?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="KiaiDay.Views.PosLogin.ComoTeSentesPage"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="Como te sentes?">
<ContentPage.Content>
<StackLayout Padding="30">
<StackLayout HorizontalOptions="Center">
<Label Text="Como te sentes hoje?" FontAttributes="Bold" FontSize="Medium" TextColor="Black"/>
</StackLayout>
<Frame CornerRadius="10" BackgroundColor="#ECECEC" BorderColor="LightGray" Padding="10" HeightRequest="200">
<TableView Intent="Form" HeightRequest="200">
<TableRoot>
<TableSection>
<ViewCell>
<StackLayout HeightRequest="40">
<StackLayout Orientation="Horizontal">
<Label Text="Energia" TextColor="White" VerticalOptions="Center" HorizontalOptions="Center" WidthRequest="500" Opacity="1"/>
<Picker ItemsSource="{Binding Opcoes}" BackgroundColor="White" WidthRequest="50"/>
</StackLayout>
</StackLayout>
</ViewCell>
<ViewCell>
<StackLayout HeightRequest="40">
<StackLayout Orientation="Horizontal" BackgroundColor="Blue">
<Picker ItemsSource="{Binding Opcoes}" BackgroundColor="White" WidthRequest="50"/>
<Label Text="Mindset" TextColor="White" VerticalOptions="Center" HorizontalOptions="StartAndExpand" FontAttributes="Bold"/>
</StackLayout>
</StackLayout>
</ViewCell>
<ViewCell>
<StackLayout HeightRequest="40">
<StackLayout Orientation="Horizontal" BackgroundColor="Blue">
<Picker ItemsSource="{Binding Opcoes}" BackgroundColor="White" WidthRequest="50"/>
<Label Text="Estratégia" TextColor="White" VerticalOptions="Center" HorizontalOptions="StartAndExpand" FontAttributes="Bold"/>
</StackLayout>
</StackLayout>
</ViewCell>
<ViewCell>
<StackLayout HeightRequest="40">
<StackLayout Orientation="Horizontal" BackgroundColor="Blue">
<Picker ItemsSource="{Binding Opcoes}" TextColor="White" BackgroundColor="White" WidthRequest="50"/>
<Label Text="Acção" TextColor="White" VerticalOptions="Center" HorizontalOptions="StartAndExpand" FontAttributes="Bold"/>
</StackLayout>
</StackLayout>
</ViewCell>
<ViewCell>
<StackLayout HeightRequest="40">
<StackLayout Orientation="Horizontal" BackgroundColor="Blue">
<Picker ItemsSource="{Binding Opcoes}" BackgroundColor="White" WidthRequest="50"/>
<Label Text="Conexão" TextColor="White" VerticalOptions="Center" HorizontalOptions="StartAndExpand" FontAttributes="Bold"/>
</StackLayout>
</StackLayout>
</ViewCell>
</TableSection>
</TableRoot>
</TableView>
</Frame>
</StackLayout>
</ContentPage.Content>
</ContentPage>
´´´
I write a simple demo to achieve the requirement of the image in your answer, I use Frame and Grid:
<StackLayout Padding="30">
<StackLayout HorizontalOptions="Center">
<Label Text="Como te sentes hoje?" FontAttributes="Bold" FontSize="Medium" TextColor="Black"/>
</StackLayout>
<Frame CornerRadius="7" BackgroundColor="Gray" BorderColor="LightGray" Padding="3" HeightRequest="180" HasShadow="False">
<Grid ColumnSpacing="1" RowSpacing="1">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Label Text="CVC Code:" BackgroundColor="LightGray" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" Grid.Row="0" Grid.Column="0" WidthRequest="100" HeightRequest="60"/>
<local:BorderlessPicker BackgroundColor="White" Grid.Row="0" Grid.Column="1" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<Picker.ItemsSource>
<x:Array Type="{x:Type x:String}">
<x:String>1321</x:String>
<x:String>3299</x:String>
</x:Array>
</Picker.ItemsSource>
</local:BorderlessPicker>
<Label Text="Card No:" BackgroundColor="LightGray" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" Grid.Row="1" Grid.Column="0" WidthRequest="100" HeightRequest="60"/>
<local:BorderlessPicker BackgroundColor="White" Grid.Row="1" Grid.Column="1" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<Picker.ItemsSource>
<x:Array Type="{x:Type x:String}">
<x:String>1900</x:String>
<x:String>1233</x:String>
</x:Array>
</Picker.ItemsSource>
</local:BorderlessPicker>
<Label Text="Expiry:" BackgroundColor="LightGray" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" Grid.Row="2" Grid.Column="0" WidthRequest="100" HeightRequest="60"/>
<local:BorderlessPicker BackgroundColor="White" Grid.Row="2" Grid.Column="1" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<Picker.ItemsSource>
<x:Array Type="{x:Type x:String}">
<x:String>12/4</x:String>
<x:String>11/8</x:String>
</x:Array>
</Picker.ItemsSource>
</local:BorderlessPicker>
</Grid>
</Frame>
</StackLayout>
In code behind, I removed the border of picker by using custom renderer:
AndroDevil mentioned in the comment: xamarin-tip-borderless-picker :
public class BorderlessPicker : Picker
{
}
Here is the result:

How to give a shadow effect to a frame in xamarin forms

I am new in xamarin I wan to add a shadow effect to my frame and avoid the top border line of my frame, I tried "hasShadow" property of frame but that doesn't help me. How can I do this.
Please help me
Here is my Xaml
<ListView x:Name="lv_search" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" RowHeight="105" ItemTapped="lv_search_ItemTapped"
SeparatorColor="White" BackgroundColor="Black" Margin="0,15,0,0">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Grid HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" BackgroundColor="White">
<Grid Margin="20,10,0,10" BackgroundColor="White">
<Frame BackgroundColor="White" >
<StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand">
<StackLayout Orientation="Horizontal" HorizontalOptions="StartAndExpand" VerticalOptions="FillAndExpand" Margin="0,0,10,0">
<AbsoluteLayout HorizontalOptions="StartAndExpand">
<Image Source="ellipse_1" VerticalOptions="CenterAndExpand" HorizontalOptions="FillAndExpand"
AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="0.01,0.4,1,1" BackgroundColor="White"/>
<Image Source="{Binding Image}" AbsoluteLayout.LayoutBounds="0.02,0.4,1,1" AbsoluteLayout.LayoutFlags="All"
HorizontalOptions="CenterAndExpand" VerticalOptions="CenterAndExpand" />
</AbsoluteLayout>
<StackLayout AbsoluteLayout.LayoutBounds="0.035,0.5,1,1" AbsoluteLayout.LayoutFlags="All" Orientation="Horizontal"
HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand">
<Label x:Name="lbl_categories" HorizontalOptions="StartAndExpand" VerticalOptions="CenterAndExpand"
Margin="10,0,0,0" FontFamily="Proxima-Nova-Semibold" TextColor="#222222" Text="{Binding Title}"
LineBreakMode="WordWrap" HorizontalTextAlignment="Start" FontSize="17.3" FontAttributes="Bold"/>
</StackLayout>
</StackLayout>
<Image HorizontalOptions="EndAndExpand" VerticalOptions="Center" Source="arrow"
AbsoluteLayout.LayoutBounds="0.9,0.3,0,0.3" AbsoluteLayout.LayoutFlags="All" />
</StackLayout>
</Frame>
</Grid>
<Image Source="img_frm" Margin="15,0,0,0" AbsoluteLayout.LayoutBounds="1,0.5,1,1" HorizontalOptions="StartAndExpand"
AbsoluteLayout.LayoutFlags="All"/>
</Grid>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
The code gives this output
But I want a page like this
The page difference is marked by blue ink.
This article by Alex Dunn looks like what you want exactly:
https://alexdunn.org/2018/06/06/xamarin-tip-dynamic-elevation-frames/
Note that you can control the Elevation as much as you want
You can use the HasShadow="True" atribute on Frame definition.
Where did you place the HasShadow? It need to be like this
<i> <Frame HasShadow="True" ...> </Frame> </i>

entry text Disappear by keyboard

I am creating a mobile app using Xamarin form using PCL. A text box always hides from the keyboard in iOS, but this part is working perfectly in Android. Below 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="MYDriver.List"
WidthRequest="20" BackgroundColor="#ffffff" >
<ContentPage.Content >
<StackLayout x:Name="InBoundlayout">
<StackLayout x:Name="ToolBar" Style="{StaticResource ToolbarOuter}" Padding="0,20,0,0">
<StackLayout Style="{StaticResource ToolbarInner1}">
<Image Source="back3.png" >
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="Back_Clicked" />
</Image.GestureRecognizers>
</Image>
</StackLayout>
<StackLayout Style="{StaticResource ToolbarInner1} " >
<Image Source="home3.png">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="Home_Clicked" />
</Image.GestureRecognizers>
</Image>
</StackLayout>
<StackLayout Style="{StaticResource ToolbarInner1}" >
<Image x:Name="PicTorchLight" >
<Image.GestureRecognizers>
<TapGestureRecognizer Tapped="TorchLight_Clicked" />
</Image.GestureRecognizers>
</Image>
</StackLayout>
<StackLayout Style="{StaticResource ToolbarInner2}">
<Label x:Name="lblUserName" Style="{StaticResource ToolbarLabel}" />
<Image Source="logout.png">
<Image.GestureRecognizers>
<TapGestureRecognizer
Tapped="Logout_Clicked" />
</Image.GestureRecognizers>
</Image>
</StackLayout>
</StackLayout>
<StackLayout x:Name="layoutHead" Style="{StaticResource HeadColour}" Margin="0,-5">
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="Start">
<Label Text=" #" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label Text="Order No" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="StartAndExpand">
<Label Text=" Ref" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label Text="Dropoff" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label Text=" Items" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
<StackLayout Spacing="0" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label Text="Status" Style="{StaticResource HeadForAllorderDetails}" />
</StackLayout>
</StackLayout>
<StackLayout x:Name="listViewOredr1">
<ListView x:Name="listViewOredr" ItemTapped="OnActivitySelected" HasUnevenRows="True" >
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<Frame HasShadow="True" OutlineColor="Silver" Padding="3">
<Grid BackgroundColor="{Binding RowColour}" ColumnSpacing="2" Padding="2" >
<StackLayout x:Name="rr" Orientation="Horizontal" HeightRequest="35" BackgroundColor="{Binding RowColour}" Padding="10">
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="Start">
<Label FontSize="10" TextColor="#707070" Text="{Binding DROPROUTEPOS_}" HorizontalOptions="StartAndExpand" VerticalOptions="Center"/>
</StackLayout>
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label FontSize="10" TextColor="#707070" Text="{Binding ORDERNUM}" HorizontalOptions="StartAndExpand" VerticalOptions="Center"/>
</StackLayout>
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label FontSize="10" TextColor="#707070" Text="{Binding REF}" HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
</StackLayout>
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label FontSize="10" TextColor="#707070" Text="{Binding DROPOFF}" HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
</StackLayout>
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Label FontSize="10" TextColor="#707070" Text="{Binding ItemScanStatus}" HorizontalOptions="StartAndExpand" VerticalOptions="Center" />
</StackLayout>
<StackLayout Spacing="0" BackgroundColor="{Binding RowColour}" Orientation="Horizontal" HorizontalOptions="EndAndExpand">
<Image Aspect="AspectFit" HorizontalOptions="StartAndExpand" VerticalOptions="Center" HeightRequest = "20" WidthRequest="20" Source = "{Binding ImageStatus}" />
</StackLayout>
</StackLayout>
</Grid>
</Frame>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</StackLayout>
<StackLayout x:Name="layoutouterFrame" BackgroundColor="Green" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<Frame Padding = "5" BackgroundColor="#ffffff">
<StackLayout Orientation="Horizontal">
<Grid x:Name="grid">
</Grid>
</StackLayout>
</Frame>
</StackLayout>
<StackLayout x:Name="layoutForBluetooth" HeightRequest = "200" BackgroundColor="#5DCBEE" Orientation="Horizontal" HorizontalOptions="FillAndExpand">
<Frame HorizontalOptions="FillAndExpand" OutlineColor="Black" HasShadow="True">-->
<Grid>
<Label Text="Scan Your Barcode" x:Name="lblDriverNumber" TextColor="Black" FontSize="Medium" HorizontalOptions="FillAndExpand" Margin="0,10" />
<Entry x:Name="txtentry" FontSize="Medium" TextColor="Black" WidthRequest="400" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand" Margin="0,10" />
</Grid>
</Frame>
</StackLayout>
</StackLayout>
</ContentPage.Content>
</ContentPage>
Can you please tell me how to stop the keyboard to hide the text box that is <Entry x:Name="txtentry" in above XAML.
It's quite a typical problem on iOS and there's a ready nuget plugin which you just need to import to your app and initialize. It will check whether the keyboard is not hiding the edited textbox and move the whole page up if it's needed.
https://www.nuget.org/packages/Xam.Plugins.Forms.KeyboardOverlap/

Xamarin forms order draw of components

I'm having a problem with the orders of the components of my main page, in this case I have her divided into three parts, Top, Boddy and Botton, Y make the search with auto complete and the component ListView Lower my boddy
<StackLayout x:Name="MainContext"
Spacing="0"
RelativeLayout.WidthConstraint="{ConstraintExpression Type=RelativeToParent,Property=Width,Factor=1,Constant=0}"
RelativeLayout.HeightConstraint="{ConstraintExpression Type=RelativeToParent,Property=Height,Factor=1,Constant=0}" >
<StackLayout.GestureRecognizers>
<TapGestureRecognizer Tapped="OnSelectMenuTapGestureTap"
NumberOfTapsRequired="1" />
</StackLayout.GestureRecognizers>
<!-- Main manu -->
<!-- Margin IOS-->
<StackLayout HeightRequest="20"
VerticalOptions="Start"
BackgroundColor="#5AC8FA"/>
<!-- end Margin IOS-->
<StackLayout x:Name="TopBar"
BackgroundColor="#5AC8FA"
VerticalOptions="Start"
HeightRequest="50"
Orientation="Horizontal">
<StackLayout x:Name="ContainerTitleLabel"
HorizontalOptions="FillAndExpand"
VerticalOptions="Center"
Orientation="Horizontal">
<Button Command="{Binding MainMenuCmd}"
BackgroundColor="Transparent"
BorderColor="Transparent"
HorizontalOptions="Start"
WidthRequest="{Binding WidthMenuRequest}"
HeightRequest="{Binding HeightMenuRequest}"
Image="icon_menu"
Margin="5,0"/>
<Label x:Name="TitleLb"
Text="{Binding TitleLb}"
VerticalOptions="Center"
HorizontalOptions="CenterAndExpand"
TextColor="Black"/>
<Button HorizontalOptions="End"
VerticalOptions="Center"
Image="icon_search"
Command = "{Binding ShowSearchCmd}"
BorderColor="Transparent"
BackgroundColor="Transparent"/>
</StackLayout>
<StackLayout x:Name="ContainerSearch"
HorizontalOptions="Start"
VerticalOptions="Center"
Orientation="Horizontal"
IsVisible="false">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width = "7*" />
<ColumnDefinition Width = "3*" />
</Grid.ColumnDefinitions>
<MarkupsInterfaces:SearchBarAutoComplet Grid.Column="0"
x:Name="SearchBar"
HorizontalOptions="Start"
TextColor="White"
PlaceholderColor="White"
CancelButtonColor="Black"
Placeholder="{MarkupsInterfaces:TranslateExtension Search}">
</MarkupsInterfaces:SearchBarAutoComplet>
<Button Grid.Column="1"
HorizontalOptions="End"
VerticalOptions="Center"
Text="{MarkupsInterfaces:TranslateExtension Close}"
Command="{Binding CloseSearchCmd}"
FontSize="12"
BackgroundColor="#5AC8FA"/>
</Grid>
</StackLayout>
</StackLayout>
<!--End Main Menu -->
<!--Boddy Context-->
<StackLayout x:Name="Boddy"
HorizontalOptions="FillAndExpand"
VerticalOptions="FillAndExpand"
Orientation="Horizontal">
</StackLayout>
<!--End Boddy Context-->
<StackLayout BackgroundColor="White"
VerticalOptions="End"
HorizontalOptions="FillAndExpand">
<!--Botton menu navigation-->
<Grid HorizontalOptions="FillAndExpand"
VerticalOptions="Fill"
ColumnSpacing="-5">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<!--Btn Scanner-->
<Button Grid.Column="1"
x:Name="BtnScneer"
Command="{Binding ScannerTabCmd}"
BackgroundColor="White"
Image="icon_scanner"
HorizontalOptions="FillAndExpand"
Margin="{Binding MarginButtons}"/>
<!--Btn Coupons-->
<Button Grid.Column="2"
x:Name="BtnCoupons"
BackgroundColor="White"
Image="icon_coupon"
HorizontalOptions="FillAndExpand"
Margin="{Binding MarginButtons}"/>
<BoxView x:Name="IndicationCoupons"
Grid.Column="2"
VerticalOptions="End"
HorizontalOptions="FillAndExpand"
HeightRequest="8"
BackgroundColor="#5AC8FA"
IsVisible="false"
Margin="5,0"/>
<!--Btn Promotions-->
<Button Grid.Column="3"
x:Name="BtnPromotions"
BackgroundColor="White"
HorizontalOptions="FillAndExpand"
Image="icon_promotions"
Margin="{Binding MarginButtons}"/>
<BoxView x:Name="IndicationPromotions"
Grid.Column="3"
VerticalOptions="End"
HorizontalOptions="FillAndExpand"
HeightRequest="8"
BackgroundColor="#5AC8FA"
IsVisible="false"
Margin="5,0"/>
<!--Btn Maket car -->
<Button Grid.Column="4"
x:Name="BtnMarketCar"
BackgroundColor="White"
VerticalOptions="Center"
HorizontalOptions="FillAndExpand"
Image="icon_market_car"
Margin="{Binding MarginButtons}"/>
<BoxView x:Name="IndicationMarketCar"
VerticalOptions="End"
HorizontalOptions="FillAndExpand"
Grid.Column="4"
HeightRequest="8"
BackgroundColor="#5AC8FA"
IsVisible="false"
Margin="5,0"/>
<!--Btn Favorites-->
<Button Grid.Column="5"
x:Name="BtnFavorites"
BackgroundColor="White"
VerticalOptions="Center"
HorizontalOptions="FillAndExpand"
Image="icon_favorite"
Margin="{Binding MarginButtons}"/>
<BoxView x:Name="IndicationFavorites"
Grid.Column="5"
VerticalOptions="End"
HorizontalOptions="FillAndExpand"
HeightRequest="8"
BackgroundColor="#5AC8FA"
IsVisible="false"
Margin="5,0"/>
</Grid>
<!--End bottom menu navigation-->
</StackLayout>
</StackLayout>
the content of body is dynamic, and my problen is
As a possibility to force the top to always be on the whole context

Categories

Resources