setChecked() ToggleButton, causing demand to freeze, then SIGSEGV
Hey all. I started to develop my first Cascades / C++ application in my spare time (time full employment is developer java BB).
I have a question which I hope someone can help me with.
In my main constructor, after that I loaded in the QML document, I make a call to get a pointer to the QML object. In this case, it's a toggle switch.
// toggle switch mToggle = root->findChild("tab1_toggle");
and further in the application, when a user touches another part of the screen or use a menu item, I trigger a method that contains this code:
mToggle->setChecked(false);
This code always causes the application to freeze, then the OS it stops and it printed in the console
SIGSEGV code=1 fltno=11 ip=791f13f2(/base/usr/lib/libbbcascades.so.1@+0x35a9a) mapaddr=000f13f2. ref=00000010
Why?
What do you mean when you say "findChild method"?
And Yes, I believe that it is valid. Here is the part of the QML who lives the toggle
Container { id: tab1_contToggle layout: StackLayout { } topMargin: 65 layoutProperties: StackLayoutProperties { horizontalAlignment: HorizontalAlignment.Center } ToggleButton { id: tab1_toggle onCheckedChanged: { //I can put code here to get triggered w/o problems when the switch is toggled } // end of tab1_ toggle element } // end of tab1_contRoot } // end of tab1
Here's the hpp file where mToggle is declared.
private: // toggle switch ToggleButton *mToggle; // other UI elements here that work just fine from other bits of code..
Tags: BlackBerry Developers
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