QQuickView ¶

概要 ¶

详细描述 ¶

这是方便子类化的 QQuickWindow 将自动加载并显示 QML 场景当有给出主源文件的 URL 时。另外，可以实例化自己的对象使用 QQmlComponent 并放置它们以手动设置 QQuickWindow .

典型用法：

if __name__ == '__main__':
    app = QGuiApplication(sys.argv)
    view = QQuickView()
    view.setResizeMode(QQuickView.SizeRootObjectToView)
    qmlFile = os.path.join(os.path.dirname(__file__), 'view.qml')
    view.setSource(QUrl.fromLocalFile(os.path.abspath(qmlFile)))
    if view.status() == QQuickView.Error:
        sys.exit(-1)
    view.show()
    app.exec_()
    # Deleting the view before it goes out of scope is required to make
    # sure all child QML instances are destroyed in the correct order.
    del view
											

To receive errors related to loading and executing QML with QQuickView , you can connect to the statusChanged() signal and monitor for Error . The errors are available via errors() .

QQuickView also manages sizing of the view and root object. By default, the resizeMode is SizeViewToRootObject , which will load the component and resize it to the size of the view. Alternatively the resizeMode may be set to SizeRootObjectToView which will resize the view to the size of the root object.

另请参阅

将 C++ 类型属性暴露给 QML QQuickWidget

class QQuickView ( engine , parent ) ¶

QQuickView([parent=None])

QQuickView(source, renderControl)

QQuickView(source[, parent=None])

param parent

QWindow

param source

QUrl

param renderControl

QQuickRenderControl

param engine

QQmlEngine

构造 QQuickView with the given QML engine and parent .

Note: In this case, the QQuickView does not own the given engine object; it is the caller’s responsibility to destroy the engine. If the engine is deleted before the view, status() will return Error .

另请参阅

Status status() errors()

构造 QQuickView 采用给定 parent . The default value of parent 为 0。

PySide2.QtQuick.QQuickView. ResizeMode ¶

This enum specifies how to resize the view.

常量	描述
QQuickView.SizeViewToRootObject	The view resizes with the root item in the QML.
QQuickView.SizeRootObjectToView	The view will automatically resize the root item to the size of the view.

PySide2.QtQuick.QQuickView. Status ¶

Specifies the loading status of the QQuickView .

常量	描述
QQuickView.Null	This QQuickView has no source set.
QQuickView.Ready	This QQuickView has loaded and created the QML component.
QQuickView.Loading	This QQuickView is loading network data.
QQuickView.Error	One or more errors has occurred. Call errors() to retrieve a list of errors.

PySide2.QtQuick.QQuickView. engine ( ) ¶

返回类型

QQmlEngine

返回指针指向 QQmlEngine used for instantiating QML Components.

PySide2.QtQuick.QQuickView. errors ( ) ¶

返回类型

Return the list of errors that occurred during the last compile or create operation. When the status is not Error, an empty list is returned.

PySide2.QtQuick.QQuickView. initialSize ( ) ¶

返回类型

QSize

Returns the initial size of the root object.

若 resizeMode is QQuickItem::SizeRootObjectToView the root object will be resized to the size of the view. contains the size of the root object before it was resized.

PySide2.QtQuick.QQuickView. resizeMode ( ) ¶

返回类型

ResizeMode

另请参阅

setResizeMode()

PySide2.QtQuick.QQuickView. rootContext ( ) ¶

返回类型

QQmlContext

This function returns the root of the context hierarchy. Each QML component is instantiated in a QQmlContext . QQmlContext ‘s are essential for passing data to QML components. In QML, contexts are arranged hierarchically and this hierarchy is managed by the QQmlEngine .

PySide2.QtQuick.QQuickView. rootObject ( ) ¶

返回类型

QQuickItem

Returns the view’s root item .

PySide2.QtQuick.QQuickView. setContent ( url , component , item ) ¶

参数

• url – QUrl

• component – QQmlComponent

• item – QObject

Set the source url , component and content item (root of the QML object hierarchy) directly.

PySide2.QtQuick.QQuickView. setInitialProperties ( initialProperties ) ¶

参数

initialProperties –

Sets the initial properties initialProperties with which the QML component gets initialized after calling setSource() .

注意

You can only use this function to initialize top-level properties.

另请参阅

createWithInitialProperties()

PySide2.QtQuick.QQuickView. setResizeMode ( arg__1 ) ¶

参数

arg__1 – ResizeMode

另请参阅

resizeMode()

PySide2.QtQuick.QQuickView. setSource ( arg__1 ) ¶

参数

arg__1 – QUrl

Sets the source to the url , loads the QML component and instantiates it.

Ensure that the URL provided is full and correct, in particular, use fromLocalFile() when loading a file from the local filesystem.

Calling this method multiple times with the same url will result in the QML component being reinstantiated.

另请参阅

source()

PySide2.QtQuick.QQuickView. sizeHint ( ) ¶

返回类型

QSize

Preferred size follows the root object geometry.

PySide2.QtQuick.QQuickView. source ( ) ¶

返回类型

QUrl

Returns the source URL, if set.

另请参阅

setSource()

PySide2.QtQuick.QQuickView. status ( ) ¶

返回类型

Status

PySide2.QtQuick.QQuickView. statusChanged ( arg__1 ) ¶

参数

arg__1 – Status