what are the layout controls available in xamarin forms

Xamarin.Forms Xamarin Forms Layouts

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What is the use of layout in Xamarin?

Xamarin.Forms Layouts are used to compose user-interface controls into visual structures. The Layout and Layout<T> classes in Xamarin.Forms are specialized subtypes of views that act as containers for views and other layouts. The Layout class itself derives from View.

What are the four main controls groups of Xamarin UI?

Four main controls groups of Xamarin.Foms UI are given below. Pages refers to the main page i.e. which type of page you are using. e.g. Content page, Navigation page. Layout is the layout, which you are using in your page. e.g. Stack Layout, Grid Layout. Views are the single UI elements, which you are using in your layout e.g. button, label.

What are the best Xamarin Forms controls?

When you need to display a lot of data Xamarin.Forms has you covered with awesome controls such as ListView, CollectionView, or CarouselView. These controls are great as they have built in support for scrolling, advanced layouts, and pull-to-refresh.

What is the difference between stacklayout and flexlayout in Xamarin forms?

The main difference is how you bind content and setup the template to display data. Let’s create the above image of a repeating pill with different content in them. As mentioned, every Xamarin.Forms layout is a bindable layout. However, it is preferre to use either StackLayout or FlexLayout as they are able to stack controls easily.

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What are controls in Xamarin forms?

This allows platform-specific applications for iOS, Android, and the Universal Windows Platform to use Xamarin. Forms code contained in a . NET Standard library. The four main control groups used to create the user interface of a Xamarin....Forms application are as follows:Pages.Layouts.Views.Cells.

How many layouts are there in Xamarin?

The four main layouts are: StackLayout - use when several controls need to be presented along one dimension. Grid - provides the ability to arrange controls in a two-dimensional grid, with the ability for controls to span columns and rows.

Which layout is best in Xamarin forms?

AbsoluteLayout. An AbsoluteLayout is used to position and size elements using explicit values, or values relative to the size of the layout.

Which layout control in Xamarin forms displays information in columns and rows?

Grid. A Grid is used for displaying elements in rows and columns, which can have proportional or absolute sizes.

What is Flex layout in Xamarin forms?

The Xamarin. Forms FlexLayout is new in Xamarin. Forms version 3.0. It is based on the CSS Flexible Box Layout Module, commonly known as flex layout or flex-box, so called because it includes many flexible options to arrange children within the layout. FlexLayout is similar to the Xamarin.

How do I use absolute layout in Xamarin?

An AbsoluteLayout is used to position and size children using explicit values. The position is specified by the upper-left corner of the child relative to the upper-left corner of the AbsoluteLayout , in device-independent units. AbsoluteLayout also implements a proportional positioning and sizing feature.

What is frame in Xamarin forms?

The Xamarin. Forms Frame class is a layout used to wrap a view with a border that can be configured with color, shadow, and other options. Frames are commonly used to create borders around controls but can be used to create more complex UI.

What are views in Xamarin forms?

Views to indicate activity ProgressBar uses an animation to show that the application is progressing through a lengthy activity. Set the Progress property to values between 0 and 1 to indicate the progress. If the activity's progress is not known, use an ActivityIndicator instead.

What is custom renderer in Xamarin forms?

Custom renderers for a given type can be added to one application project to customize the control in one place while allowing the default behavior on other platforms; or different custom renderers can be added to each application project to create a different look and feel on iOS, Android, and the Universal Windows ...

How do I bind data to grid in Xamarin form?

Binding ItemsSource in XAML In the main page, add the necessary XML namespace to use SfDataGrid control, set the BindingContext of the page to the ViewModel class, and bind the ItemSource of SfDataGrid with the DataTableCollection.

What is the default span for grid layout?

Default value is '100%' .

What is content page in Xamarin?

To add a new ContentPage we select: New Item/ContentPage.xaml. NavigationPage. It's a type of Page which can hold multiple pages but display only one and rpovide the capability navigation between them. In this video you will find a sample that uses the NavigationPage, we are able to navigate from a page to another.

What is grid Xamarin?

The Grid is a layout that organizes its children into rows and columns, which can have proportional or absolute sizes. By default, a Grid contains one row and one column. In addition, a Grid can be used as a parent layout that contains other child layouts.

What is custom renderer in Xamarin forms?

Custom renderers for a given type can be added to one application project to customize the control in one place while allowing the default behavior on other platforms; or different custom renderers can be added to each application project to create a different look and feel on iOS, Android, and the Universal Windows ...

What is content page in Xamarin?

To add a new ContentPage we select: New Item/ContentPage.xaml. NavigationPage. It's a type of Page which can hold multiple pages but display only one and rpovide the capability navigation between them. In this video you will find a sample that uses the NavigationPage, we are able to navigate from a page to another.

In this article

Xamarin.Forms Layouts are used to compose user-interface controls into visual structures.

Xamarin.Forms - Passing Data - Code Samples

This sample demonstrates how to pass data between pages when navigating (navigation)

Xamarin.Forms - Working with ListView - Code Samples

These samples relate to the Working with ListView in Xamarin.Forms doc, including de-selecting the row after tapping, uneven row heights... (UI)

Xamarin.Forms - TabbedPage with NavigationPage - Code Samples

This sample demonstrates how embed a NavigationPage in a TabbedPage, in order to perform page navigation within a tab (navigation)

Xamarin.Forms - Text - Code Samples

This sample relates to the Text in Xamarin.Forms series of documents. The app consists of several pages, demonstrating each of the text controls (UI)

What are the advantages of using Xamarin forms?from zepfiro.wordpress.com

The greatest advantage of using Xamarin Forms is obviously the Binding system and the viewmodels. Especially, collections of data fits perfectly with ListViews allowing views prototyping and decoupling of views and models.

Can you use Xamarin.Forms HorizontalListView?from stackoverflow.com

Till the CollectionView is out, you can use my Xamarin.Forms HorizontalListView.

Can you use GridView in Xamarin?from stackoverflow.com

However, in the Xamarin Labs project there is GridView which you could use. It's still a bit rough and folks are working through some bugs now with selecting the items.

Is there a Xamarin form?from stackoverflow.com

As everyone else has said, No - there isn't one available out of the box in Xamarin.Forms.

Can you have a horizontal list view in StackLayout?from stackoverflow.com

No, there's no way to have an horizontal ListView. You can wrap an horizontal StackLayout in an horizontal ScrollView to achieve the same visual result, but that's not quite the same, as you won't have DataTemplating.

What is Xamarin Forms layout?

Xamarin.Forms Layout classes allow us to arrange and group the UI controls. To choose the layout class, it requires the knowledge of how to arrange the position and size of the child elements.

When to use absolute layout?

Absolute Layout is used to position the child elements at the absolute requested position. Absolute Layout is used when we want to move away from all the layout restriction and make the layout different. We can use proportional and absolute values to set the height, width, X-axis, and Y-axis of the element.

Why is grid layout wasteful?

This type of layout is wasteful because unnecessary layout calculations are performed. We can achieve the better-desired layout using Grid.

What is relative layout?

Relative Layout can be used to position the views on the screen corresponding to the overall layout or other views.

What is the minimum proportional value in Layout Flags?

In Layout Flags, we will declare whether the value in the bound layout is proportional or not. The minimum proportional value is 0, and the maximum is 1.

What is scroll view?

Scroll View contains the layouts and enables them to scroll offscreen. Scroll View is also used to allow the views to move to the visible portion of the screen when the keyboard is showing.

What is a flexlayout?

A FlexLayout is similar to a StackLayout in that it displays child elements either horizontally or vertically in a stack. However, a FlexLayout can wrap its children also if there are too many to fit in a single row or column, and also enable the more granular control of the size, orientation, and alignment of its child elements.

What is horizontal option in Xamarin?

HorizontalOptions and VerticalOptions are properties on Xamarin.Forms Layouts, Views and Controls. Their usage allows for a fairly simple way to position view elements within parent layouts without needing to manipulate other property values. However, not knowing what these values represent and when they are applicable can slow down the layout creation process and consume unnecessary memory if the LayoutOptions set is redundant.

What are the default values for horizontal and vertical options in a layout?

Default values for HorizontalOptions and VerticalOptions on Layouts, Views and Controls are Fill except for Relative Layouts where the default values are FillAndExpand

What is the suffix for horizontal options?

The same principles apply when setting HorizontalOptions values with the -AndExpand suffix on child views within horizontal StackLayouts. Setting HorizontalOptions to StartAndExpand on a view within a horizontal StackLayout adds some space to the right of the child view. Setting HorizontalOptions to CenterAndExpand adds some space to the left and right of the child view, EndAndExpand adds some space to the left of the child view and FillAndExpand stretches the child view horizontally so it fills the remaining space available in the StackLayout.

What are the values of LayoutOptions?

LayoutOptions values Start, Center, End and Fill are ignored when used for setting LayoutOptions properties in the direction of the containing StackLayout orientation (unless child view is RelativeLayout)

Where is the view in a horizontal stack layout?

When setting VerticalOptions to Start on a view within a horizontal StackLayout, the view will be positioned at the top border of the Stack Layout. While setting VerticalOptions to Center vertically centers the view within the StackLayout, setting VerticalOptions to End will position the view at the bottom of the StackLayout and Fill (default) will display the view so that it fills the height of the StackLayout.

Can relative layouts be changed vertically?

If the child view is a RelativeLayout, with default LayoutOptions values of FillAndExpand, as stated above, its size will be altered vertically if it’s contained within a vertical StackLayout and horizontally if is contained within a horizontal StackLayout (this will be discussed in further detail below). So to override this behavior, a RelativeLayout’s LayoutOptions property should be set to Fill.

Can vertical options be used on horizontal stack layout?

The same is true when setting VerticalOptions values on horizontal StackLayouts. There’s only one child view in every column of a horizontal StackLayout. So it is not possible for the StackLayout to reallocate space vertically and therefore setting the VerticalOptions value to one with or without the -AndExpand suffix would produce the same result.

What is the UI in an application?

Let’s start with the Application User interface (UI). It is the interface of the Application, which is available for the users to interact with the app.

What is navigation page?

Navigation Page. Use it to make navigation between the pages. i.e. move from one page to another. Most of the mobile Applications have more than one page. Thus, you must use navigation page in your Application to move from one page to another.

Can you use layout in content page?

This element can be anything like label, an entry or you can also use layout in the content page. It doesn’t matter that your layout contains more than one element; it can be placed in a content page.

What is the UniformGridLayout in Xamarin?

The UniformGridLayout in the Xamarin.FormsBook.Toolkit library is intended to display all its children within itself. Therefore, it cannot deal with unconstrained dimensions and raises an exception if one is encountered.

What is wraplayout class in Xamarin?

The WrapLayout class in the Xamarin.FormsBook.Toolkit assumes that all its children are the same size, and wraps the children from one row (or column) to the next. It defines an Orientation property like StackLayout, and ColumnSpacing and RowSpacing properties like Grid, and it caches child sizes.

Can a layout derivative overlap?

A Layout<T> derivative can overlap its children. However, the children are rendered in their order in the Children collection, and not the order in which their Layout methods are called.

What is absolute layout in Xamarin?

The AbsoluteLayout control in Xamarin.Forms allows you to specify where exactly on the screen you want the child elements to appear, as well as their size and shape (bounds).

What is relative layout?

RelativeLayout is used to position and size views relative to properties of the layout or sibling views. Unlike AbsoluteLayout, RelativeLayout does not have the concept of the moving anchor and does not have facilities for positioning elements relative to the bottom or right edges of the layout. RelativeLayout does support positioning elements outside of its own bounds.

What is scroll element?

An element capable of scrolling if it's Content requires.

Overview

The data form supports linear and grid layouts. The DataFormLayoutManager creates the DataFormItemView, DataFormGroupItemView, and manages layout of label, editor, and validation label.

Linear layout support

By default, the data form arranges the fields one-by-one. It is applicable for both label positions: left and top.

Grid layout support

By default, the data form arranges one data field per row. It is possible to have more than one date fields per row by setting the ColumnCount property which provides grid like layout for the data form.

Label visibility

You can hide the label by defining the DisplayOptions attribute or by handling AutoGeneratingDataFormItem event. In this case, only the editor will be loaded.

Label position

Labels can be positioned either top or left side of the editor. By using the LabelPosition property, you can layout the label associated with editor.

Loading images for label

You can load image instead of label by defining attribute or by handling the AutoGeneratingDataFormItem event.

Changing order of the DataFormItem

You can change the order of the DataFormItem by using attributes or by handling AutoGeneratingDataFormItem event.