QML (Qt Meta-object Language) is a user interface markup language. It is a declarative language (similar to CSS and JSON) for designing user interface–centric applications. Inline JavaScript code handles imperative aspects. It is associated with Qt Quick, the UI creation kit originally developed by Nokia within the Qt framework. Qt Quick is used for mobile applications where touch input, fluid animations and user experience are crucial. QML is also used with Qt3D to describe a 3D scene and a "frame graph" rendering methodology. A QML document describes a hierarchical object tree. QML modules s
Key facts
- Programming language.name
- QML
- Programming language.paradigm
- Multi-paradigm: declarative, reactive, scripting
- Programming language.family
- ECMAScript
- Programming language.developer
- Qt Project
- Programming language.latest release version
- 6.8
- Programming language.typing
- dynamic, strong
- Programming language.influenced by
- XAML, JSON, JavaScript, Qt
- Programming language.influenced
- Qt
- File format.name
- QML
- File format.extension
- .qml
- File format.developer
- Qt Project
- File format.genre
- Scripting language
via Wikipedia infobox
Wikidata facts
- Official website
- doc.qt.io/qt-6/qmlreference.html
Show 4 more facts
- file extension
- qml
- inception
- 2009-00-00
- software version identifier
- 2.7
- media type
- text/vnd.qt.qml
via Wikidata · CC0
~9 min read
Article
13 sectionsContents
- Adoption
- Syntax, semantics
- Basic syntax
- Property bindings
- States
- Animation
- Qt/C++ integration
- Familiar concepts
- Signal handlers
- Development tools
- References
- External links
- How-tos
QML (Qt Meta-object Language) is a user interface markup language. It is a declarative language (similar to CSS and JSON) for designing user interface–centric applications. Inline JavaScript code handles imperative aspects. It is associated with Qt Quick, the UI creation kit originally developed by Nokia within the Qt framework. Qt Quick is used for mobile applications where touch input, fluid animations and user experience are crucial. QML is also used with Qt3D to describe a 3D scene and a "frame graph" rendering methodology. A QML document describes a hierarchical object tree. QML modules shipped with Qt include primitive graphical building blocks (e.g., Rectangle, Image), modeling components (e.g., FolderListModel, XmlListModel), behavioral components (e.g., TapHandler, DragHandler, State, Transition, Animation), and more complex controls (e.g., Button, Slider, Drawer, Menu). These elements can be combined to build components ranging in complexity from simple buttons and sliders, to complete internet-enabled programs.
QML elements can be augmented by standard JavaScript both inline and via included .js files. Elements can also be seamlessly integrated and extended by C++ components using the Qt framework.