I am trying to create a simple stacklayout UI.
Here is the XAML.
<ContentView>
<StackLayout
BackgroundColor="Green"
HeightRequest="500"
VerticalOptions="End">
<StackLayout
BackgroundColor="LightSkyBlue"
HeightRequest="100"
VerticalOptions="End">
<!-- // ADD CONTROLS HERE[! -->
</StackLayout>
</StackLayout>
</ContentView>
Ideally it is expected that the 'blue' stacklayout should align itself at the bottom on the green one But, it just doesn't moves and stays on the top.
What am i doing wrong?
Please point me in the right direction
Attaching the image for better clarity.
You just need to replace your code by below code:
<StackLayout
BackgroundColor="Green"
HeightRequest="500"
VerticalOptions="End">
<StackLayout
BackgroundColor="LightSkyBlue"
HeightRequest="100"
VerticalOptions="EndAndExpand">
<!-- // ADD CONTROLS HERE[! -->
</StackLayout>
</StackLayout>
Hope it will help you
Thank you
In my experience, a StackLayout will never obey Vertical or Horizontal options. It will only use as much space as it needs. You can place a transparent BoxView in the StackLayout and set its VerticalOptions to FillAndExpand. That will force the StackLayout to use all the space.
I normally use a Grid instead and use <RowDefinition Height="*"/> to force it to use all the space.
You need to set blue Stack Layout's Vertical Option to EndAndExpand. Because stack layout children doesn't fill automatically. You need to force it if you want. You can look at this answer here for detailed explanation.
Related
I have a grid with Frame elements as cells. Within some frame elements, there's label elements. The problem is the label stretches only as much as its content.
My goal is to make labels take the entire space of its parent elements(Frames).
I tried setting the VerticalOptions and HorizontalOptions properties to "StartAndExpand" and also "FillAndExpand" to no avail
<Grid>
<Frame Grid.Row="0" Grid.Column="0">
<Label Text="Hello" />
</Frame>
...
</Grid>
Thank you!
EDIT: To clarify, I want to stretch label itself but not its text.
As Frame has a default padding, simply set it manually like below.
<Frame padding="0">
<....>
</Frame>
Plus, sometimes label with long text not behave correctly inside the Frame,
and one workaround is to wrap the Label with a StackLayout.
I want to design as attached screenshot
I tried using RelativeLayount and AbsoluteLayout but Still not successful to have the required result. Can you help
<RelativeLayout HorizontalOptions="Center">
<Image Source="XX.png" />
<Image Source="YY.png"/>
<Image Source="WW.png"/>
</RelativeLayout>
These are the three images
You can use AbsoluteLayout and specify image positions to make them overlap:
<AbsoluteLayout>
<Image Source="aa.png" Aspect="Fill" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds=".5,.5,1,1"/>
<Image Source="bb.png" Aspect="Fill" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds=".5,.5,1,1"/>
</AbsoluteLayout>
But in your case, it will be difficult to adjust the positions since your images are of different scale, and are not symmetrical, it's recommended that you make some adjustment on your images first so that it will be easier for you to put them into the screen.
For more information about AbsoluteLayout, see Xamarin.Forms AbsoluteLayout
Option 1 - Use grid with same Row and Column
Option 2 - Use AbsoluteLayout
I have a problem making my ImageButton's width fixed and the Height will be changed with the size of the image that I use in the ImageButton, I use the ImageButton multiple times in a Scrollview, I use Visual Studio to create a Cross-Platform App using Xamarin, So what I used to solve my problem are here and here, But I wasn't able to solve it using anything, And this is a picture that describes what I want:-
And please don't make it duplicate if there's answers for my question because I am new to Xamarin Forms And I didn't find any answer exactly to my question, And this is my code:-
<Frame CornerRadius="10" OutlineColor="#fce9cc" Padding="4" Margin="15" VerticalOptions="StartAndExpand"
HasShadow="True" x:Name="ViewLayout" x:FieldModifier="public" BackgroundColor="Black">
<StackLayout>
<Label x:Name="filmNameLabel_1" HorizontalOptions="Center" FontSize="Large" TextColor="White"
Margin="0,15,0,15"/>
<StackLayout Orientation="Vertical">
<ImageButton x:Name="imageWidget_1" BackgroundColor="Black" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" Aspect="AspectFill"/>
</StackLayout>
</StackLayout>
</Frame>
First time I set the StackLayout or the parent of the ImageButton's HeightRequest to a number and it would make the ImageButton's Height a fixed number but I dont want that I want the ImageButton's Height to change with the Image's size Ratio bye the width which is fixed next to
the parent layout.
I like to put a Border in a Grid using Xaml.
I found these code
`<Border BorderBrush="Black" BorderThickness="2">
<Grid>
<!-- Grid contents here -->
</Grid>
</Border>`
But it doesn´t work.
I'm a novice yet in this, I want to do a Table with some information.
There is no Border control in Xamarin.Forms, however you can use a Frame
<Frame OutlineColor="YourColor" BackgroundColor="Transparent" Padding="0">
<Grid>
</Grid>
</Frame>
Note the OutlineColorproperty, and the Padding, sometimes people forget that Frame as a default Padding that can overlap their childs.
I want to align one image to the top and one image to the bottom of a RelativeLayout in Xamarin.Forms.
How can I do this?
<RelativeLayout>
<Image
Aspect="Fill"
Source = "header_login.png"></Image>
<Image
Aspect="Fill"
Source = "login_footer_2.png"
RelativeLayout.XConstraint=
"{ConstraintExpression Type=RelativeToParent,
Property=Width,
Factor=0}"
RelativeLayout.YConstraint=
"{ConstraintExpression Type=RelativeToParent,
Property=Height,
Factor=1}" ></Image>
</RelativeLayout>
I found something may be useful for you. Even if it is not done by using RelativeLayout, you can still have what you want by using StackLayout.
The idea is :
<StackLayout>
<StackLayout VerticalOptions="Start">
<Image/> <!--top image-->
</StackLayout>
<StackLayout VerticalOptions="CenterAndExpand">
<!-- middle controls -->
</StackLayout>
<StackLayout Orientation="Horizontal" VerticalOptions="End">
<Image/> <!--bottom image-->
</StackLayout>
</StackLayout>
By Expanding the Middle StackLayout take al the remained spaces pushing the other one on top and on bottom respectively. It was very useful to me to have a fixed bottom.
https://stackoverflow.com/a/30143144/3324840
The relative layout provides a very easy way to do this.
You should use the constraint type "relative to parent" and use factors to position the element.
Relative layout can include the control size when positioning with factors. What that means is that if you put a factor of 0, the top of the image will be at the top of the container.
If you put a factor of 1, the bottom of the image will be at the bottom of the container.
Likewise, a factor of 0.5 will center the center of your image on the center of the container
So, relative layout by default takes care of your control dimensions when calculating factored positions.
You can find a lot more info and samples on the relative container in the official documentation. There are also code samples included in the sample projects to help you out.