User Guide for Mobile Lists

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Thursday, January 30, 2014PrintSubscribe
User Guide for Mobile Lists

List is a common presentation style of data on mobile devices. Limited screen size calls for a stacked enumeration of data fields. Some fields may be provided with descriptive labels.

A list view in a mobile app created with Code On Time mobile app generator.

Applications produced with Code On Time have a responsive user interface design. Predefined and dynamic breakpoints will ensure that a list displays more fields with optional labels on a larger screen whenever possible. A simple change of a mobile device orientation will reveal additional information in list items.

 A list view on a mobile device with landscape orientation reveals addtional item details in a an app created with Code On Time mobile app generator.

Scrolling Items

User can scroll down to see items that are not visible on screen. Only a limited set of available data items is included in the initial rendering of a list. A special item labeled “Loading…” will become visible for a brief moment upon reaching the bottom of a list. Application detects that a user has reached the last visible list item and loads additional set of items from the server if they exist.

A list of items is about to be extened at the bottom in a mobile app created with Code On Time mobile app generator.   Additonal items were automatically loaded in a list after reaching the bottom of the initial data set in a mobile app created with Code On Time mobile app generator.

If a data item is edited or inserted by a user, then the application will retrieve a set of items containing the change.  That item will be displayed with an alternative background to indicated that it has been selected.

It is possible that the set of items with the selection is located somewhere in the middle of the entire data set. Scrolling up will reveal “Loading…” item at the top of the list in this case. Additional  items will become available shortly after an automatic interaction with the server.

A list is about to retreive additional items at the top in the mobile app created with Code On Time mobile app generator.   A list after additional items were loaded at the top in the app created with Code On Time mobile app generator.

Selecting an Item

There are two main methods of selecting an item in a list. The user can either tap an item or tap and hold an item for brief period of time. A tap on an item will cause an-application defined action to execute. Typically another view of data is displayed in response.

A tap on a list item will activate an application-defined action in a mobile-app created with Code On Time mobile app generator.   A form view of data item is displayed in response to an item tap in a mobile created with Code On Time mobile app generator.

Tapping and holding an item for three quarters of a second will cause an item to be selected but no action will be executed. This will result in item-specific actions to become available in the user interface of the list.

For example, the list without a selection offers “New” and “Search” actions on the  toolbar of a mobile app just before an item is tapped by a user. The tapped item will be illuminated for a moment with a highlighted background.

Actions 'Search' and 'New' are visible on the mobile application toolbar just before an item is tapped in the app created with Code On Time mobile app generator.

Selection of an item with “tap and hold” will cause “Edit”, “Delete”, and “Search” actions to show up. The selected item will have an alternative background.

Actions 'Edit', 'Delete', and 'Search' are available on application toolbar of a mobile app created with Code On Time mobile app generator.

Additional actions and presentation options can be accessed from the context menu of a list. The context menu will slide out after a user taps on the “Context Menu” button on the application toolbar.

Context menu is always available on the application toolbar of a mobile app created with Code On Time mobile app generator.   Context menu slides out in response to a tap on the 'Context Menu' button on the application toolbar of a mobile app created with Code On Time mobile app generator.

View Configuration

The first item in the context menu shows the name of the view and the total number of items available. Tap this item to display the view configuration options.

'View Configuration' menu option displays the name of the current view and number of items in a list displayed by a mobile app created with Code On Time mobile application generator.

A list may have a few application-defined alternative views of data with custom fields, sort order, and filter. Tap an alternative view of data to have it activated.

The list of available view configuration options in a mobile app created with Code On Time mobile application generator.   Alternative view option selected in the view configuration menu of a mobile app created with Code On Time mobile application generator.

The list will display the selected view of data.

An alternative view of customer list displayed in a mobile application created with Code On Time mobile/desktop app generator.

Presentation styles “List” and “Cards” are available in the view configuration of any list. The default presentation style of a list is “Cards”. This presentation style allows a list to be displayed in multiple columns if the screen size of a mobile device makes it possible.

The default presentation style 'Cards' displays three columns of items in a list of a mobile app when displayed in iPad Air. The application has been created with Code On Time mobile app generator.

Presentation style “List” will force the list to be displayed in a single column regardless of the screen resolution. This will result in more details to be visible in each item of a list on a larger screen.

Presentation style 'List' will force a list to display a single column of items regardless of the screen resolution of a mobile device. This presentation style is shown in a list of a mobile app created with Code On Time mobile app generator.

Note that additional presentation styles of data such as “Grid”, “Chart”, “Map”, and “Calendar” may be visible in the view configuration options as defined by application.

The selection of alternative view or presentation style will be “memorized” on the mobile device and remain specific to the user identity and list instance on the application page.

User can refresh the list items by choosing “Refresh” option in the view configuration menu. Any changes to the list data by other users will become visible on the mobile device.

'Refresh' option selected in the configuration menu of a list in a mobile app created with Code On Time mobile app generator.

Adding an Item

If a user swipes to the end of a list, then an additional item that allows executing “New” action is displayed at the bottom. This action is application-defined and may not be accessible to all users.

User can tap on the item to start entering a new data record.

An option to create a new item is displayed at the bottom of a list in a mobile app created with Code On Time mobile application generator.   User can start entering a new item by tapping on the option at the bottom of a list in a mobile app created with Code On Time mobile/desktop app generator.

Empty Lists

An empty list may be displayed to a user if the database table is empty or if the current list filter has produced no matches. Action shortcut “Refresh” and optional shortcut “New” will be displayed in the list.

Options to refresh a list and to create a new item are displayed in an empty list of a mobile app created with Code On Time mobile app generator.

List Heading

A list may display a heading item with a brief description of the list contents. If a list is scrolled down, then the heading will “stick” to the toolbar.

An optional list description is displayed before the first list item in a mobile app created with Code On Time mobile app generator.   A list description with a fixed position at the top of the toolbar is displayed when a list is scrolled in a mobile app created with Code On Time mobile app generator.

User can tap on the heading to dismiss it.