Tag: layout

Containers

Containers

The generic Container and the Swap container can be assigned a Layout Manager. For other containers, contents and layout are explicit; this is the case for the List container and List Group container, Menu Bar container, Map container and Map Markers container. These containers can contain only specific types of components and will position their children in ways that are simple and specific to the container.

List of Containers (iiziGo 1.2)

Context Menu container
List container and List Group container
Map container and Map Markers container
Menu Bar container (desktop only)
Container (generic)
Swap container
Table container
Tab bar container
Heading container

The Swap Container allows the dynamic loading of the List Container and the generic Container. The common page-slide-in from the right can be accomplished by placing a Swap Container in your Panel and adding further Containers to the components folder of the Swap Container. The order of these containers will be zero-indexed from the top container.

You can then see the containers inside the swap and iterate through the children of the swap by selecting the Swap Container and using the page-down and page-up keys on your keyboard.

The List and List Group Containers

The List belongs only to mobile development. When you add a List Container, a List Group container is already created within it. You can add List Item Components to the Group for a single list, or add other List Groups.

Layout

Layout

You apply a Layout Manager to a Panel or other container to control the position of its child components. The available layouts are Absolute, Border and Grid. When creating a Panel or container you are given the choice of Layout Manager in the New Panel wizard or New Container wizard. You can also select the container and click the Layout tool in the Panel Editor toolbar. Some containers have an explicit Layout Manager already assigned and in these cases the Layout tool is disabled.

Layout options tool in the panel editor toolbar

Absolute layout

Absolute Layout will position and size children according to absolute values relative to the container. Minimal and maximum sizes and component alignment can be defined. Position and size properties are available under Layout properties for both the container and for individual components in the Property Editor. Click to view or double click the Layout button in the Property Editor tool bar to isolate the Layout properties. Components in the Absolute Layout have the following Layout properties:

Absolute layout properties in property editor

To achieve a responsive design with Absolute Layout, percentages can be used in Left, Top, Width, and Height values. The Property Editor also accepts percentages in combination with pixel values. For example, a component can be given a Top value of 50% minus one half of its width, to keep it in the vertical center of its parent container regardless of the containers size and shape.

Border layout

The Border layout will always stretch to fill its parent container; the Border layout will position components in the five defined regions of Top, Bottom, Center, Right and Left (Leading and Trailing are also defined for RTL language design). Visual hints are provided when dropping a component into a container with Border layout. Multiple components can be placed in the same region.

Layout regions appearing in a container with border layout

Click or double click the Layout button in the Property Editor tool bar. Components in the Border Layout have the following layout properties:

Border layout properties in property editor

The regions can be resizable at runtime by setting the Resizable property. The following values are only meaningful when the Resizable option is used: Define the limits for how small and how big with Minimum size and Maximum size as well as the initial size Width and Height.

The properties defining how the container should behave are the following:

The top and bottom regions extend the entire width of the container and the remaining regions are placed in the middle. With the left and right (or leading and trailing) regions, the side regions take priority, extending the full height of the container. If the Gutters property is defined, the regions will have spacing between. The Live resize property will allow the regions to be resized at runtime.

Grid layout

The Grid Layout arranges components in rows and columns. The properties defining the Grid Layout are the following:

Grid layout properties in property editor

The number of columns is defined and the number of rows is then calculated as depending on the number of components added. The ‘Same width’ and ‘Same height’ properties specify whether the columns and / or rows should be distributed evenly in the Grid. The ‘Cell spacing’ and ‘Cell padding’ can be defined and will then be applied for all cells in the Grid.

The potential overflow of the Grid container’s content is determined by the Horizontal and Vertical align properties.

Detail of Grid layout properties that control content and grid overflow

When dragging a component over a Grid layout container, the container displays visual hints for positioning the component. Depending on the settings mentioned above, the Grid will adapt to the new components, potentially adding rows and columns.

Grid cell regions that appear in a container with Grid layout

Another way to design the structure of the Grid is to use the Grid layout actions tool in the toolbar. If the container is not empty, the way in which the newly introduced components should relate to earlier components can be specified in the Distribute dropped components menu in the toolbar.

Component distribution options tool in the panel editor toolbar.
The Property editor; base, layout and styles

The Property editor; base, layout and styles

With a component selected, you will find all the component’s properties listed in the Property Editor. The properties of a component are divided into Base properties, Layout properties and Style properties. You can view all these at once or double-click one of the three buttons in the properties tool bar to isolate a group of properties. You can also find any property quickly with the search field.

The Property Editor toolbar

Use the Property Editor to change the properties of your components in real time and to apply all component designs as you would when writing CSS. With a Panel or any of its components selected, you will find all necessary tools for manipulating properties and attributes in the Property Editor and the Panel Editor toolbar.

The Panel Editor toolbar

Quick UI Primer

Type and text
You cannot type directly into any of the text components in the Design Editor. It is recommended to store all your app’s dynamic and static text in a Text Table. Text can also be entered in the text property under Panel Properties > Text for all text components, or double-click the text properties value field to open a text editor or text table editor.

Selection
All Base, Layout and Style properties are context sensitive to the component selected. Multiple component selection is supported for properties shared by multiple components. You can select a component in the Panel’s component tree list, or in the Design Editor.

Bounding Box
The component’s Bounding Box serves as a resize box only if the component’s Horizontal and Vertical aligns are set to fill; these are found in the Layout properties. Otherwise the Bounding Box can be larger or smaller than the component, allowing you to align the component within the Bounding Box.

Width, Height, Left and Right
Most of the time it is not recommended to assign width and height to components in iiziApps. As with all responsive UI design, the layout is device-dependent; the Layout Manager in iiziGo will handle position and resizing of your components.

Duplication
All components can be copied and pasted either from the component list in the panel tree or in the Design Editor. Right-click a component a choose Copy; you can then past it and all its properties into the same Panel or into any other Panel in your app.

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