Uses of Package
com.codename1.ui

Packages that use com.codename1.ui

Package	Description
com.codename1.charts	The main ChartComponent Package
com.codename1.charts.compat	This package contains compatibility classes for internal use
com.codename1.charts.renderers	Provides renderer classes that keep the chart rendering / drawing styles.
com.codename1.charts.transitions
com.codename1.cloud	Provides cloud related services such as storage, binding widgets to the cloud seamlessly so they can be persisted easily.
com.codename1.components	Generic elaborate components that make use of both UI elements and storage.
com.codename1.contacts	Provides access to the contacts list from the device address book
com.codename1.facebook	Legacy generic implementation of the Facebook API with simplified OAuth integration to allow social sharing.
com.codename1.facebook.ui	User interface for integrating with basic Facebook features currently mostly the Like button
com.codename1.impl	The implementation package should not be used by developers, it is an internal implementation detail which will break compatibility between major Codename One releases.
com.codename1.io	Networking, Storage, Filesystem & related API's
com.codename1.io.services	Default WebService implementations
com.codename1.javascript	NOTE: The com.codename1.javascript package is now deprecated.
com.codename1.maps	The mapping API allows developers to use maps in their applications, add layers on top of the map and to enhance the API with additional Layers, Providers and functionality.
com.codename1.maps.layers	The Layers are elements that are displayed on the map.
com.codename1.media	Video and Audio playback support are handled within this package using the Media & MediaManager APIs.
com.codename1.properties	High level property objects that allow us to replace getters/setters in business objects with more convenient storage/parsing mappings while retaining type safety.
com.codename1.share	Sharing services, that can be registered on the ShareButton
com.codename1.system	Low level calls into the Codename One system, including support for making platform native API calls.
com.codename1.testing	This package contains everything necessary for unit tests, automation of tests and everything in between.
com.codename1.ui	Main widget package containing the component/container "composite" similar both in terminology and design to Swing/AWT.
com.codename1.ui.animations	All components are animatable by potential and additional animations (unrelated to a specific component) can be installed on the fly, transitions between forms are also handled as part of this package.
com.codename1.ui.events	Observable pattern event listeners in the spirit of AWT 1.1's event dispatching architecture, all events are dispatched on the EDT (Event Dispatch Thread).
com.codename1.ui.geom	Contains classes related to geometry locations and calculations such as rectangle and size
com.codename1.ui.html	This package is deprecated and used only for legacy support, use the WebBrowser component from the components package.
com.codename1.ui.layouts	Layout managers allow a Container to arrange its components by a set of rules that adapt to specific densities (ppi - pixels per inch).
com.codename1.ui.layouts.mig
com.codename1.ui.list	Lists are highly customizable and serve as the basis for ComboBox and other components (such as carousels etc) they employ a similar MVC approach to Swing including the renderer pattern, notice that we strongly discourage usage of lists... ListCellRenderer allows us to customize the appearance of a list entry, it works as a "rubber stamp" by drawing the rendered component and discarding its state thus allowing very large lists with very little component state overhead.
com.codename1.ui.painter	Painter allows us to draw arbitrary elements of graphics from plain/scaled/tiled images to gradients and pretty much any form of graphic drawing we can imagine.
com.codename1.ui.plaf	Look of the application can be fully customized via this package, it represents a rendering layer that can be plugged in separately in runtime and themed to provide any custom look.
com.codename1.ui.scene	This package provides a light-weight scene graph for Codename One.
com.codename1.ui.spinner	Spinners allows picking of simple sequential values similarly to combo boxes but of a much wider value set.
com.codename1.ui.table	Table component for editing and viewing tabular data and arranging Codename One components in a tabular form
com.codename1.ui.tree	Tree component for displaying hierarchy based information and its related classes
com.codename1.ui.util	Utility features that are either too domain specific or don't "fit" into any other packages including the Resource file format loading API.
com.codename1.ui.validation	The validation framework allows us to mark invalid input in text components and disable components in the case of invalid input

Classes in com.codename1.ui used by com.codename1.charts

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Transform Encapsulates a 3D transform that can be used in Graphics contexts or with Shapes to transform in various ways.

Classes in com.codename1.ui used by com.codename1.charts.compat

Class and Description
Font Codename One currently supports 3 font types:
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.charts.renderers

Class and Description
Font Codename One currently supports 3 font types:

Classes in com.codename1.ui used by com.codename1.charts.transitions

Class and Description
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.

Classes in com.codename1.ui used by com.codename1.cloud

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
EncodedImage EncodedImage is the workhorse of Codename One.

Classes in com.codename1.ui used by com.codename1.components

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
ButtonGroup This class is used to create a multiple-exclusion scope for RadioButton.
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Dialog A dialog is a form that occupies a part of the screen and appears as a modal entity to the developer.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
EncodedImage EncodedImage is the workhorse of Codename One.
Font Codename One currently supports 3 font types:
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
IconHolder An interface implemented by Component classes that can display an icon.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
ReleasableComponent An Interface that any Component that could be released from the parent Form can implement.
SelectableIconHolder An interface that is implemented by "selectable" components that hold icons, such as Button, SpanButton, MultiButton, etc...
Slider The slider component serves both as a slider widget to allow users to select a value on a scale via touch/arrows and also to indicate progress.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.
TextField A specialized version of TextArea with some minor deviations from the original specifically:
TextHolder An interface implemented by Component classes that can support setting/getting text.

Classes in com.codename1.ui used by com.codename1.contacts

Class and Description
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.facebook

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
EncodedImage EncodedImage is the workhorse of Codename One.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
Slider The slider component serves both as a slider widget to allow users to select a value on a scale via touch/arrows and also to indicate progress.

Classes in com.codename1.ui used by com.codename1.facebook.ui

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
IconHolder An interface implemented by Component classes that can display an icon.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
ReleasableComponent An Interface that any Component that could be released from the parent Form can implement.
SelectableIconHolder An interface that is implemented by "selectable" components that hold icons, such as Button, SpanButton, MultiButton, etc...
TextHolder An interface implemented by Component classes that can support setting/getting text.

Classes in com.codename1.ui used by com.codename1.impl

Class and Description
BrowserComponent The browser component is an interface to an embeddable native platform browser on platforms that support embedding the native browser in place, if you need wide compatibility and flexibility you should check out the HTMLComponent which provides a lightweight 100% cross platform web component. This component will only work on platforms that support embedding a native browser which exclude earlier versions of Blackberry devices and J2ME devices. Its recommended that you place this component in a fixed position (none scrollable) on the screen without other focusable components to prevent confusion between focus authority and allow the component to scroll itself rather than CodenameOne making that decision for it.
BrowserWindow.EvalRequest A future that is returned from the eval() method.
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
EncodedImage EncodedImage is the workhorse of Codename One.
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
PeerComponent A peer component is essentially a "dummy" Codename One component used to calculate the position of the actual native platform specific component.
Stroke Encapsulates the stroke used for drawing paths.
TextSelection Text selection support for Codename One applications.
Transform Encapsulates a 3D transform that can be used in Graphics contexts or with Shapes to transform in various ways.
Transform.NotInvertibleException

Classes in com.codename1.ui used by com.codename1.io

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Dialog A dialog is a form that occupies a part of the screen and appears as a modal entity to the developer.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.io.services

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
EncodedImage EncodedImage is the workhorse of Codename One.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.

Classes in com.codename1.ui used by com.codename1.javascript

Class and Description

BrowserComponent The browser component is an interface to an embeddable native platform browser on platforms that support embedding the native browser in place, if you need wide compatibility and flexibility you should check out the HTMLComponent which provides a lightweight 100% cross platform web component. This component will only work on platforms that support embedding a native browser which exclude earlier versions of Blackberry devices and J2ME devices. Its recommended that you place this component in a fixed position (none scrollable) on the screen without other focusable components to prevent confusion between focus authority and allow the component to scroll itself rather than CodenameOne making that decision for it.

Classes in com.codename1.ui used by com.codename1.maps

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.maps.layers

Class and Description
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.media

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.properties

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
RadioButton RadioButton is a Button that maintains a selection state exclusively within a specific ButtonGroup.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.
TextComponent Encapsulates a text field and label into a single component.

Classes in com.codename1.ui used by com.codename1.share

Class and Description
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.system

Class and Description
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.

Classes in com.codename1.ui used by com.codename1.testing

Class and Description
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.

Classes in com.codename1.ui used by com.codename1.ui

Class and Description
AnimationManager Animation manager concentrates all of the animations for a given form into a single place that allows us to manage all mutations to a Form in a way the prevents collisions between mutations.
AutoCompleteTextComponent A TextComponent version of AutoCompleteTextField This component was contributed here https://github.com/codenameone/CodenameOne/issues/2705
AutoCompleteTextComponent.AutoCompleteFilter Allows filtering the entries in the auto complete
AutoCompleteTextField An editable TextField with completion suggestions that show up in a drop down menu while the user types in text.
BrowserComponent The browser component is an interface to an embeddable native platform browser on platforms that support embedding the native browser in place, if you need wide compatibility and flexibility you should check out the HTMLComponent which provides a lightweight 100% cross platform web component. This component will only work on platforms that support embedding a native browser which exclude earlier versions of Blackberry devices and J2ME devices. Its recommended that you place this component in a fixed position (none scrollable) on the screen without other focusable components to prevent confusion between focus authority and allow the component to scroll itself rather than CodenameOne making that decision for it.
BrowserComponent.JSProxy A thin wrapper around a Javascript variable that makes it easier to call methods on that variable.
BrowserComponent.JSRef A wrapper class for a Javascript value that is returned via the #execute(java.lang.String, com.codename1.util.Callback) method.
BrowserComponent.JSType Enum with the possible types for a BrowserComponent.JSRef object.
Button Button is the base class for several UI widgets allowing clickability.
ButtonGroup This class is used to create a multiple-exclusion scope for RadioButton.
CheckBox CheckBox is a button that can be selected or deselected and displays its state to the user.
CN This is a global context static class designed for static import, this class allows us to write more terse code.
CN1Constants Common constants for Display and CN
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
CommonProgressAnimations.CircleProgress A progress animation that shows an animated circle.
CommonProgressAnimations.EmptyAnimation An empty progress animation.
CommonProgressAnimations.LoadingTextAnimation A progress animation that shows a block of text being typed.
CommonProgressAnimations.ProgressAnimation Base class for ProgressAnimations
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
ComponentGroup A component group is a container that applies the given UIID to a set of components within it and gives the same UIID with "First"/"Last" prepended to the first and last components.
ComponentSelector A tool to facilitate selection and manipulation of UI components as sets.
ComponentSelector.ComponentClosure Interface used for providing callbacks that receive a Component as input.
ComponentSelector.ComponentMapper Interface used by ComponentSelector.map(com.codename1.ui.ComponentSelector.ComponentMapper) to form a new set of components based on the components in one set.
ComponentSelector.Filter Interface used by ComponentSelector.filter(com.codename1.ui.ComponentSelector.Filter) to form a new set of components based on the components in one set.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Dialog A dialog is a form that occupies a part of the screen and appears as a modal entity to the developer.
Display Central class for the API that manages rendering/events and is used to place top level components (Form) on the "display".
DynamicImage A base class for images that dynamically painted, just like a normal component.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
EncodedImage EncodedImage is the workhorse of Codename One.
Font Codename One currently supports 3 font types:
FontImage FontImage allows using an icon font as if it was an image.
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Form.TabIterator Iterates through the components on this form in traversal order.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
IconHolder An interface implemented by Component classes that can display an icon.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
ImageFactory A factory class for creating mutable images.
InputComponent A base class for TextComponent, PickerComponent and potentially other components that wish to accept input in a dynamic way that matches iOS and Android native input guidelines.
InterFormContainer A container that allows you to use the same component on multiple forms.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
MenuBar This class represents the Form MenuBar.
MultipleGradientPaint A base class for Paints that use multiple gradients.
MultipleGradientPaint.ColorSpaceType Colors spaces for gradients.
MultipleGradientPaint.CycleMethod Cycle methods for gradients.
Paint An interface for providing custom painting such as gradients.
Painter Painter can be used to draw on components backgrounds.
PeerComponent A peer component is essentially a "dummy" Codename One component used to calculate the position of the actual native platform specific component.
PickerComponent A picker component similar to TextComponent that adapts to native UI conventions and leverages the Picker API.
RadioButton RadioButton is a Button that maintains a selection state exclusively within a specific ButtonGroup.
ReleasableComponent An Interface that any Component that could be released from the parent Form can implement.
RGBImage An image that stores its data as an integer RGB array internally, this image cannot be manipulated via Graphics primitives however its array is accessible and modifiable programmatically.
SelectableIconHolder An interface that is implemented by "selectable" components that hold icons, such as Button, SpanButton, MultiButton, etc...
Sheet A light-weight dialog that slides up from the bottom of the screen on mobile devices.
Slider The slider component serves both as a slider widget to allow users to select a value on a scale via touch/arrows and also to indicate progress.
Stroke Encapsulates the stroke used for drawing paths.
SwipeableContainer SwipeableContainer allows us to side swipe a component and expose underlying configuration within it.
Tabs A component that lets the user switch between a group of components by clicking on a tab with a given title and/or icon.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.
TextComponent Encapsulates a text field and label into a single component.
TextComponentPassword TextComponent extended to automatically add mask/unmask password button near the TextField; it acts like a normal TextComponent if the Constraint is not TextArea.PASSWORD
TextField A specialized version of TextArea with some minor deviations from the original specifically:
TextHolder An interface implemented by Component classes that can support setting/getting text.
TextSelection Text selection support for Codename One applications.
TextSelection.Char Encapsulates a box around a single character/glyph in the UI, storing the component that it belongs to, the position of its corresponding character in the component's text, and the bounds of the box, relative to TextSelection.getSelectionRoot().
TextSelection.Span Encapsulates a span of text on the screen.
TextSelection.Spans Encapsulates a collection of Spans.
TextSelection.TextSelectionSupport An interface that can be returned from any Component's Component.getTextSelectionSupport() method to provide text selection support on that component.
TextSelection.TextSelectionTrigger Trigger types for text selection.
Toolbar Toolbar replaces the default title area with a powerful abstraction that allows functionality ranging from side menus (hamburger) to title animations and any arbitrary component type.
Toolbar.BackCommandPolicy The behavior of the back command in the title
TooltipManager Central management for tooltips, this class can be derived/customized to override the default tooltip behavior.
Transform Encapsulates a 3D transform that can be used in Graphics contexts or with Shapes to transform in various ways.
Transform.NotInvertibleException
UIFragment Encapsulates an XML or JSON template for a UI component hierarchy.
UIFragment.ComponentFactory A factory for converting XML elements to Components.
URLImage URLImage allows us to create an image from a URL.
URLImage.ErrorCallback Invoked in a case of an error
URLImage.ImageAdapter Allows applying resize logic to downloaded images you can use constant resize behaviors defined in this class.
VirtualInputDevice Represents a virtual input device that may need to be closed/disposed, providing a way Widgets that require exclusive access to the user's input (but perhaps not all of the user interactions with the app) need to provide a way for the form to dispose of it when a new input device needs to be displayed.

Classes in com.codename1.ui used by com.codename1.ui.animations

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
Painter Painter can be used to draw on components backgrounds.

Classes in com.codename1.ui used by com.codename1.ui.events

Class and Description
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.

Classes in com.codename1.ui used by com.codename1.ui.geom

Class and Description
Transform Encapsulates a 3D transform that can be used in Graphics contexts or with Shapes to transform in various ways.

Classes in com.codename1.ui used by com.codename1.ui.html

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Font Codename One currently supports 3 font types:
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.
TextField A specialized version of TextArea with some minor deviations from the original specifically:

Classes in com.codename1.ui used by com.codename1.ui.layouts

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.

Classes in com.codename1.ui used by com.codename1.ui.layouts.mig

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.

Classes in com.codename1.ui used by com.codename1.ui.list

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
IconHolder An interface implemented by Component classes that can display an icon.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
TextField A specialized version of TextArea with some minor deviations from the original specifically:
TextHolder An interface implemented by Component classes that can support setting/getting text.
URLImage.ImageAdapter Allows applying resize logic to downloaded images you can use constant resize behaviors defined in this class.

Classes in com.codename1.ui used by com.codename1.ui.painter

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Painter Painter can be used to draw on components backgrounds.

Classes in com.codename1.ui used by com.codename1.ui.plaf

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Font Codename One currently supports 3 font types:
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
Painter Painter can be used to draw on components backgrounds.
Stroke Encapsulates the stroke used for drawing paths.
TextArea An optionally multi-line editable region that can display text and allow a user to edit it.
TextSelection Text selection support for Codename One applications.
TextSelection.Span Encapsulates a span of text on the screen.
TextSelection.Spans Encapsulates a collection of Spans.

Classes in com.codename1.ui used by com.codename1.ui.scene

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Transform Encapsulates a 3D transform that can be used in Graphics contexts or with Shapes to transform in various ways.

Classes in com.codename1.ui used by com.codename1.ui.spinner

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
IconHolder An interface implemented by Component classes that can display an icon.
Label Allows displaying a single line of text and icon (both optional) with different alignment options.
ReleasableComponent An Interface that any Component that could be released from the parent Form can implement.
SelectableIconHolder An interface that is implemented by "selectable" components that hold icons, such as Button, SpanButton, MultiButton, etc...
TextHolder An interface implemented by Component classes that can support setting/getting text.

Classes in com.codename1.ui used by com.codename1.ui.table

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.

Classes in com.codename1.ui used by com.codename1.ui.tree

Class and Description
Button Button is the base class for several UI widgets allowing clickability.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.

Classes in com.codename1.ui used by com.codename1.ui.util

Class and Description
Command The Command class provides a useful extension to the ActionListener interface in cases where the same functionality may be accessed by several controls.
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Container A composite pattern with Component, allows nesting and arranging multiple components using a pluggable layout manager architecture.
Editable An interface that can be implemented to provide editing capabilities for any component in the UI.
Font Codename One currently supports 3 font types:
Form Top level component that serves as the root for the UI, this Container subclass works in concert with the Toolbar to create menus.
Graphics Abstracts the underlying platform graphics context thus allowing us to achieve portability between MIDP devices and CDC devices.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.
List A set of elements that is rendered using a ListCellRenderer and are extracted via the ListModel, notice that we strongly discourage usage of lists. A list can represent many UI concepts ranging from a carousel to a "todo" checklist, this is made possible thanks to extensive use of Swing's style of MVC.
Painter Painter can be used to draw on components backgrounds.

Classes in com.codename1.ui used by com.codename1.ui.validation

Class and Description
Component The component class is the basis of all UI widgets in Codename One, to arrange multiple components together we use the Container class which itself "IS A" Component subclass.
Image Abstracts the underlying platform images allowing us to treat them as a uniform object.