Hi,
I'm currently having an issue with a programatically-generated NavigationPane. I can push a page onto the NavigationPane, I can popAndDelete() that page (which is default behaviour regardless), but while the UI displays the first page the second page is deleted. As a result, when I push the second page onto the NavigationPane for a second time, I end up having to popAndDelete() two intstances of the second page. This continues to increase so that pushing the second page for the nth time results in having to popAndDelete() that page n times.
Here's the relevant code sections:
void ScreenLogin::gotoPINPage(QUrl url) {
ScreenWeb *web = new ScreenWeb(url);
// Configure the back button
ActionItem *backAction = ActionItem::create();
bool res = QObject::connect(backAction, SIGNAL(triggered()), this, SLOT(onBackTriggered()));
// Add back button to web view
NavigationPaneProperties::Builder properties = NavigationPaneProperties::create().backButton(backAction);
web->getPage()->setPaneProperties(properties);
Q_UNUSED(res);
// Push the web view
root->push(web->getPage());
}
/*!
* Executed when the NavigationPane Back button is clicked
*/
void ScreenLogin::onBackTriggered() {
root->popAndDelete();
}
/*!
* Executed when the top pane of the NavigationPane has changed
*/
void ScreenLogin::onTopChanged(bb::cascades::Page* page) {
qDebug() << "Root has " << root->children().count() << " children";
if(root->children().indexOf(page) == 0) { // Login page
if(hasTokenStored()) {
setStatus("Logging in...", true);
pushTwitterScreen();
}
else {
setStatus("", false);
containerConnect->setVisible(true);
containerPin->setVisible(false);
}
}
}
The output from the qDebug statement in onTopChanged always reads "Root has n children", n being the number of times I have gone forwards and back. All of the above statements are executed in the app, I've checked with step debugging.
Any help would be greatly appreciated. Many thanks,
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