Qt SCXML Media Player QML Example (Dynamic)▲

Media Player QML Example (Dynamic) demonstrates how to access data from a dynamically loaded ECMAScript data model.
The UI is created using Qt Quick.
Running the Example▲
To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, visit Building and Running an Example.
Using the ECMAScript Data Model▲
We specify the data model as a value of the datamodel attribute of the <scxml> element in mediaplayer-common/mediaplayer.scxml:
&
lt;scxml
xmlns=
"http://www.w3.org/2005/07/scxml"
version=
"1.0"
name=
"MediaPlayerStateMachine"
initial=
"stopped"
datamodel=
"ecmascript"
&
gt;
&
lt;datamodel&
gt;
&
lt;data id=
"media"
/&
gt;
&
lt;/
datamodel&
gt;
Dynamically Loading the State Machine▲
We link against the Qt SCXML module by adding the following line to the project build files.
With qmake to the mediaplayer-qml-dynamic.pro
QT +=
qml scxml
With cmake to the CMakeLists.txt
find_package(Qt6 REQUIRED COMPONENTS Core Gui Qml Scxml)
target_link_libraries(mediaplayer-
qml-
dynamic PUBLIC
Qt6::
Core
Qt6::
Gui
Qt6::
Qml
Qt6::
Scxml
)
We dynamically create the state machine in mediaplayer-common\Mediaplayer.qml:
import
QtScxml
Window {
id
:
root
property StateMachine stateMachine: scxmlLoader.stateMachine
property alias source: scxmlLoader.source