Welcome!

Welcome to the official BlackBerry Support Community Forums.

This is your resource to discuss support topics with your peers, and learn from each other.

inside custom component

Native Development

Reply
New Developer
myuniquescreenname
Posts: 9
Registered: ‎10-13-2013
My Device: N/A
Accepted Solution

Use QObject as property in UI element

I am attempting to store an instance of QObject in a UI element for later use. My attempt to use a QtObject type failed as follows:

 

var model = retrieveModel() // Retrieves QObject instance from Q_INVOKABLE C++ method

containerInstance.model = model

...

Container {

  id: containerInstance

  property QtObject model // <-- Attempt to store the QObject here

  label{

    text: model.name

    onXYZ: {

      // Use QObject model here

    }

  }
}

 

But apparently QtObject differs from QObject:

 

asset:///Test.qml:51: Error: Cannot assign QObject* to bb::cascades::QmlQObject*

 

Does anyone have an idea to store a QObject as a property of a UI element? My other option is to store the model QObject instance as a global variable in "Qt.<name>" but that is not a nice solution.

Developer
BBSJdev
Posts: 6,118
Registered: ‎07-05-2012
My Device: Playbook, Dev Alpha C, Z10 LE, Z30

Re: Use QObject as property in UI element

You need to expose the object you want to use in C++ to QML.

 

Read this to understand how that is done...

 

http://developer.blackberry.com/native/documentation/cascades/dev/integrating_cpp_qml/


If you've been helped click on Like Button, if you've been saved buy the app. :smileyhappy:

Developer of stokLocker, Sympatico and Super Sentences.