QQuickAsyncImageProviderclass provides an interface for for asynchronous control of QML image requests. 更多 …
New in version 5.6.
见 Image Response Provider Example for a complete implementation.
另请参阅
QQuickAsyncImageProvider
¶
PySide2.QtQuick.QQuickAsyncImageProvider.
requestImageResponse
(
id
,
requestedSize
)
¶
id – unicode
requestedSize
–
QSize
Implement this method to return the job that will provide the texture with
id
.
id
is the requested image source, with the “image:” scheme and provider identifier removed. For example, if the image
source
was “image://myprovider/icons/home”, the given
id
would be “icons/home”.
requestedSize
corresponds to the
Image::sourceSize
requested by an Image item. If
requestedSize
is a valid size, the image returned should be of that size.
注意
this method may be called by multiple threads, so ensure the implementation of this method is reentrant.