How to connect the slot button Cascades
I am new to waterfalls and QML and yesterday I tried to port native QtWidget app to waterfalls, but it does not. The problem is, I add some buttons to the container in QML main file and coded my custom slot function which should be executed when the user click some button. But I don't know how to connect the clicked() signal to my function from the custom location.
When using
Connect (CloseButton, signal(Button::clicked()),this,slot(on_closeButton_clicked()));) or connect (exitButton, SIGNAL (clicked ()), this, SLOT (on_exitButton_clicked ())); I get error "unable to connect SIGNAL (null) to SLOT (on_closeButton_clicked ()) ' on all the buttons.
Here is my code in app.cpp
App::App() { QmlDocument *qml = QmlDocument::create("main.qml"); qml->setContextProperty("cs", this); AbstractPane *root = qml->createRootNode(); Application::setScene(root); textHolder = root->findChild
And qml
import bb.cascades 1.0 Page { id: mainPage content: Container { id: main Container { id: buttonHolder scrollMode: ScrollMode.None layout: StackLayout { layoutDirection: LayoutDirection.LeftToRight leftPadding: 5.0 rightPadding: 5.0 topPadding: 5.0 bottomPadding: 5.0 } touchPropagationMode: TouchPropagationMode.None objectName: "buttonHolder" Button { id: openButton text: "Open" } Button { id: closeButton text: "Close" onClicked: { } } Button { id: saveButton text: "Save" onClicked: { } } Button { id: saveAsButton text: "Save As" onClicked: { } } Button { id: exitButton text: "Exit" } } //******************************** Container { id: textHolderArea layout: AbsoluteLayout { } topMargin: 5.0 leftMargin: 1.0 rightMargin: 1.0 bottomMargin: 2.0 TextArea { id: textHolder textStyle.fontStyleHint: FontStyleHint.Default layoutProperties: AbsoluteLayoutProperties { } leftMargin: 5.0 rightMargin: 5.0 preferredHeight: 645.0 textStyle.justification: TextJustification.Enabled objectName: "textHolder" text: "" } } //******************************** } }
And I have no idea how call my app.cpp C++ slot in my main QML file
Your buttons should an objectName set to be visible to C++, the id is only visible inside the QML.
Tags: BlackBerry Developers
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