Screen control in Power Apps
A UI element that contains one or more other controls in an app.
Most apps have multiple Screen controls that contain Label controls, Button controls, and other controls that show data and support navigation. For information about how to add a screen, reorder screens, and configure navigation, review Add a screen.
BackgroundImage – The name of an image file that appears in the background of a screen.
Fill – The background color of a control.
Height - The height of the screen. If the app is responsive (Scale to fit is Off) and the device on which the app is running is shorter than this property, the screen can scroll vertically.
ImagePosition – The position (Fill, Fit, Stretch, Tile, or Center) of an image in a screen or a control if it isn't the same size as the image.
Name - The name of the screen.
OnHidden – The behavior of an app when the user navigates away from a screen.
OnVisible – The behavior of an app when the user navigates to a screen. Use this property to set up variables and preload data used by the screen. Use the App.OnStart property for set up once when the app is started.
Orientation - The orientation of the screen. If its Width is greater than its Height, the orientation will be Layout.Horizontal; otherwise, it will be Layout.Vertical.
Size - A positive integer that classifies the size of the screen. The classification is determined by comparing the screen's Width property to the values in the App.SizeBreakpoints property. The ScreenSize type consists of four values (Small, Medium, Large, and ExtraLarge) that correspond to the integers 1 through 4.
Width - The width of the screen. If the app is responsive (Scale to fit is Off) and the device on which the app is running is narrower than this property, the screen can scroll horizontally.
Don't know how to add, name, and configure a control?
Name the default Screen control Source, add another Screen control, and name it Target.
Set the Fill property of Target to this formula:
If("Red" in ScreenFills.Selected.Value, RGBA(255, 0, 0, 1), RGBA(54, 176, 75, 1))
Target appears in the color that you selected.
In Target, select the Shape control to return to Source.
(optional) Reorder the screens by hovering over Target in the left navigation bar, selecting the ellipsis that appears, and then selecting Move up.
Target appears first when the user opens the app.
When the Screen is the effective background for text, there must be adequate color contrast between:
In addition to text, consider checking color contrast with essential graphical objects like the star images in a Rating control.
Screen reader support
There must be a meaningful name for each Screen. The screen name can be viewed and edited in the same way as other controls: in the tree view of the controls pane or in the header of the properties pane.
When a new Screen is loaded, screen readers will announce its name.