Qt Quick QML 類型

The Qt Quick 模塊提供圖形圖元類型。這些類型僅在 QML 文檔中可用,若該文檔導入 QtQuick 名稱空間。

To use the module, import the QtQuick module with the following statement:

import QtQuick
					

拜訪 Qt Quick module documentation for more information about the concepts that are central to QtQuick .

子模塊

Qt Quick includes several submodules that contain additional types:

  • 本地存儲 - a submodule containing a JavaScript interface for an SQLite database
  • 粒子 - 為 QML 應用程序提供粒子係統
  • 控件 - 提供一組可重用 UI 組件
  • 布局 - 包含用於在用戶界麵中排列項的類型
  • 測試 - 用於測試 QML 應用程序的類型。
  • Effects - provides types for applying one or more simple graphical effects to Qt Quick items.

值類型

There are a number of value types that are 由 QML 語言默認支持 .

此外, QtQuick import provides the following value types:

color ARGB color value
font Font value with the properties of QFont. The font type refers to a font value with the properties of QFont
matrix4x4 A matrix4x4 type is a 4-row and 4-column matrix
point 具有 X 和 Y 屬性的值
quaternion A quaternion type has scalar, x, y, and z attributes
rect 具有 X、Y、寬度及高度屬性的值
size 具有寬度和高度屬性的值
vector2d A vector2d type has x and y attributes
vector3d Value with x, y, and z attributes
vector4d A vector4d type has x, y, z and w attributes

對象類型

大多數對象類型的提供是通過 QtQuick import 基於 Item 類型,其自身派生自 QtObject . QML 對象類型 提供通過 Qt QML 模塊 (譬如 QtObject and Component ) 也是可用的當 import QtQuick .

Accessible 啓用 QML 項的可訪問性
AnchorAnimation 動畫錨點值的變化
AnchorChanges 指定如何按狀態改變項錨點
AnimatedImage Plays animations stored as a series of images
AnimatedSprite 繪製子畫麵動畫
Animation 所有 QML 動畫的基
AnimationController 啓用動畫的手動控製
Animator 所有 QML 動畫師的基
Application Provides access to global application state properties shared by many QML components
Behavior Defines a default animation for a property change
BorderImage 基於圖像描繪邊框
BorderImageMesh Defines a mesh with vertices arranged like those of a BorderImage
Canvas Provides a 2D canvas item enabling drawing via JavaScript
CanvasGradient Provides an opaque CanvasGradient interface
CanvasImageData Contains image pixel data in RGBA order
CanvasPixelArray Provides ordered and indexed access to the components of each pixel in image data
CloseEvent Notification that a Window is about to be closed
ColorAnimation Animates changes in color values
ColorGroup Set of colors by roles
Column Positions its children in a column
Context2D Provides 2D context for shapes on a Canvas item
DoubleValidator Defines a validator for non-integer numbers
Drag For specifying drag and drop events for moved Items
DragEvent Provides information about a drag event
DragHandler 用於拖拽的處理程序
DropArea For specifying drag and drop handling in an area
EnterKey Provides a property to manipulate the appearance of Enter key on an on-screen keyboard
Flickable 提供可以 "輕彈" 的錶麵
Flipable Provides a surface that can be flipped
Flow Positions its children side by side, wrapping as necessary
FocusScope Explicitly creates a focus scope
FontLoader Allows fonts to be loaded by URL
FontMetrics Provides metrics for a given font
FrameAnimation Triggers a handler at every animation frame update
GestureEvent Parameter given with the gestureStarted signal
漸變 Defines a gradient fill
GradientStop Defines the color at a position in a Gradient
GraphicsInfo Provides information about the scenegraph backend and the graphics API used by Qt Quick
Grid Positions its children in grid formation
GridMesh Defines a mesh with vertices arranged in a grid
GridView For specifying a grid view of items provided by a model
HoverHandler Handler for mouse and tablet hover
Image 顯示圖像
InputMethod Provides access to QInputMethod for QML applications
IntValidator Defines a validator for integer values
Item A basic visual QML type
ItemGrabResult Contains the results from a call to Item::grabToImage()
KeyEvent Provides information about a key event
KeyNavigation Supports key navigation by arrow keys
Keys Provides key handling to Items
LayoutMirroring Property used to mirror layout behavior
ListView Provides a list view of items provided by a model
Loader Allows dynamic loading of a subtree from a URL or Component
Matrix4x4 Provides a way to apply a 4x4 tranformation matrix to an Item
MouseArea Enables simple mouse handling
MouseEvent Provides information about a mouse event
MultiPointHandler Abstract handler for multi-point Pointer Events
MultiPointTouchArea 啓用處理多觸摸點
NumberAnimation Animates changes in qreal-type values
OpacityAnimator Type animates the opacity of an Item
Palette Contains color groups for each QML item state
ParallelAnimation Enables animations to be run in parallel
ParentAnimation Animates changes in parent values
ParentChange 指定如何在狀態改變時重設項父級
Path Defines a path for use by PathView and Shape
PathAngleArc Defines an arc with the given radii and center
PathAnimation Animates an item along a path
PathArc Defines an arc with the given radius
PathAttribute Specifies how to set an attribute at a given position in a Path
PathCubic Defines a cubic Bezier curve with two control points
PathCurve Defines a point on a Catmull-Rom curve
PathElement 基路徑類型
PathInterpolator Specifies how to manually animate along a path
PathLine 定義直綫
PathMove 移動路徑的位置
PathMultiline Defines a set of polylines through a list of lists of coordinates
PathPercent Manipulates the way a path is interpreted
PathPolyline Defines a polyline through a list of coordinates
PathQuad Defines a quadratic Bezier curve with a control point
PathSvg Defines a path using an SVG path data string
PathText Defines a string in a specified font
PathView Lays out model-provided items on a path
PauseAnimation Provides a pause for an animation
PinchArea 啓用簡單捏閤手勢處理
PinchEvent For specifying information about a pinch event
PinchHandler Handler for pinch gestures
PointHandler Handler for reacting to a single touchpoint
PointerDevice QML equivalent for QPointingDevice
PointerDeviceHandler Abstract handler for pointer events with device-specific constraints
PointerEvent QML equivalent for QPointerEvent
PointerHandler Abstract handler for pointer events
Positioner Provides attached properties that contain details on where an item exists in a positioner
PropertyAction Specifies immediate property changes during animation
PropertyAnimation Animates changes in property values
PropertyChanges 描述狀態的新特性綁定或值
Rectangle Paints a filled rectangle with an optional border
RegularExpressionValidator Provides a string validator
Repeater Instantiates a number of Item-based components using a provided model
Rotation Provides a way to rotate an Item
RotationAnimation Animates changes in rotation values
RotationAnimator Type animates the rotation of an Item
Row Positions its children in a row
Scale Provides a way to scale an Item
ScaleAnimator Type animates the scale factor of an Item
Screen Attached object provides information about the Screen an Item or Window is displayed on
ScriptAction Defines scripts to be run during an animation
SequentialAnimation Allows animations to be run sequentially
ShaderEffect Applies custom shaders to a rectangle
ShaderEffectSource Renders a Qt Quick item into a texture and displays it
Shortcut 提供鍵盤快捷鍵
SinglePointHandler Abstract handler for single-point Pointer Events
SmoothedAnimation Allows a property to smoothly track a value
SpringAnimation Allows a property to track a value in a spring-like motion
Sprite 指定子畫麵動畫
SpriteSequence 繪製子畫麵動畫
State 定義對象和特性的配置
StateChangeScript 指定如何按狀態運行腳本
StateGroup 為非項類型提供內置狀態支持
SystemPalette Provides access to the Qt palettes
TableView Provides a table view of items to display data from a model
TapHandler Handler for taps and clicks
Text Specifies how to add formatted text to a scene
TextEdit Displays multiple lines of editable formatted text
TextInput 顯示可編輯文本行
TextMetrics Provides metrics for a given font and text
TouchPoint Describes a touch point in a MultiPointTouchArea
Transform For specifying advanced transformations on Items
Transition Defines animated transitions that occur on state changes
Translate Provides a way to move an Item without changing its x or y properties
TreeView Provides a tree view to display data from a QAbstractItemModel
UniformAnimator Type animates a uniform of a ShaderEffect
Vector3dAnimation Animates changes in QVector3d values
ViewTransition Specifies items under transition in a view
WheelEvent Provides information about a mouse wheel event
WheelHandler 用於鼠標滾輪的處理程序
Window 創建新的頂層窗口
XAnimator Type animates the x position of an Item
YAnimator Type animates the y position of an Item
eventPoint Qml equivalent for QEventPoint
handlerPoint 事件點
pointingDeviceUniqueId QML equivalent for QPointingDeviceUniqueId