内容

• 基本 QML 元素
• 图形
• 文本处理
• 鼠标和交互区域
• 定位器和中继器
• 变换
• 状态
• 动画和过渡
• 模型和数据处理
• 视图
• 路径定义
• 实用工具
• 图形效果
• 附加元素

QML 元素

These are the functionally grouped lists of QML elements as part of Qt Quick .

Elements are declared with the their name and two curly braces. Elements may be nested in elements, thereby creating a parent-child relationship between the two elements.

To see the QML elements listed by functional area, see the Groups Of Related QML Elements 页面。

基本 QML 元素

• Item - Basic item element inherited by QML elements
• Component - Encapsulates QML elements during importing
• QtObject - Basic element containing only the objectName property

图形

• Rectangle - 矩形元素
• Image - For incorporating bitmaps into a scene
• BorderImage - Allows the use of images as borders
• AnimatedImage - For playing animations stored in a series of frames
• Gradient - For defining a color gradient
• GradientStop - Used to define a color within a Gradient
• SystemPalette - Provides access to the Qt palettes

文本处理

• Text - For inserting formatted text into a scene
• TextInput - Captures user key input
• TextEdit - Displays multiple lines of editable formatted text
• IntValidator - Validates values as integers
• DoubleValidator - Validates real values
• RegExpValidator - Validator for string regular expressions
• FontLoader - Loads fonts by name or URL

鼠标和交互区域

• MouseArea - Sets up an area for mouse interaction
• Keys - Provides components with attached properties to handle key input.
• FocusScope - Element that mediate keyboard focus changes
• Flickable - Provides a surface that can be "flicked"
• Flipable - Provides a surface that produces "flipping" effects
• PinchArea - Enables simple pinch gesture handling

定位器和中继器

• Column - Arranges its children vertically
• Row - Arranges its children horizontally
• Grid - Positions its children in a grid
• Flow - Positions its children with wrapping support
• Repeater - Uses a model to create multiple components

变换

• Scale - Assigns item scaling behaviors
• Rotation - Assigns item rotation behaviors
• Translate - Assigns item translation behaviors

状态

• State - Defines sets of configurations of objects and properties
• PropertyChanges - Describes property changes within a state
• StateGroup - Contains a set of states and state transitions
• StateChangeScript - Allows script binding in a state
• ParentChange - Re-parent an Item in a state change
• AnchorChanges - Change the anchors of an item in a state

动画和过渡

• Transition - Animates transitions during state changes
• SequentialAnimation - Runs animations sequentially
• ParallelAnimation - Runs animations in parallel
• Behavior - Specifies a default animation for property changes
• PropertyAction - Sets immediate property changes during animation
• PauseAnimation - Introduces a pause in an animation
• SmoothedAnimation - Allows a property to smoothly track a value
• SpringAnimation - Allows a property to track a value in a spring-like motion
• ScriptAction - Runs scripts during an animation

Elements that animate properties based on data types

• PropertyAnimation - Animates property changes
• NumberAnimation - Animates properties of type qreal
• Vector3dAnimation - Animates properties of type QVector3d
• ColorAnimation - Animates color changes
• RotationAnimation - Animates rotations
• ParentAnimation - Animates parent changes
• AnchorAnimation - Animates anchor changes

模型和数据处理

• ListModel - Defines a list of data
• ListElement - Defines a data item in a ListModel
• VisualItemModel - Contains items that already defines its own visual delegate
• VisualDataModel - Encapsulates a model and a delegate
• XmlListModel - Specifies a model using XPath expressions
• XmlRole - Specifies a role for an XmlListModel
• Binding - Binds any value to any property
• Package - Collection that enables sharing of items within different views

视图

• ListView - Provides a list visualization of a model
• GridView - Provides a grid visualization of a model
• PathView - Visualizes a model's contents along a path. See 路径元素 了解更多信息。

路径定义

• 路径 - Defines a path used by PathView
• PathLine - Defines a line in 路径
• PathQuad - Defines a quadratic Bezier curve in a 路径
• PathCubic - Defines a cubic Bezier curve in a 路径
• PathAttribute - Allows the setting of attributes along a 路径
• PathPercent - Modifies the item distribution along a 路径

实用工具

• Connections - Explicitly connects signals and signal handlers
• Timer - Provides timed triggers
• Qt - The QML global Qt object provides useful enums and functions from Qt.
• WorkerScript - Enables the use of threads in QML
• Loader - Controls the loading of items or components
• LayoutItem - Allows declarative UI elements inside Qt's Graphics View layouts
• LayoutMirroring - Used to mirror layout behavior

图形效果

• 粒子 - Generates and animates particles
• ParticleMotionLinear - Adds linear motion behavior to 粒子
• ParticleMotionGravity - Adds gravitational motion to 粒子
• ParticleMotionWander - Adds varied motions to 粒子
• ShaderEffectItem - Enables the use of OpenGL Shading Language together with QML
• ShaderEffectSource - Encapsulates QML item tree as a source item for ShaderEffectItem

附加元素

These elements are not included in the QtQuick 1.0 module. Their respective QML bindings should first be obtained and installed.

• QtWebKit QML Module - WebView Element - 为显示 Web 内容
• 移动 QML 插件
• Qt Quick 组件