[Solved] What is a valid signal for a Switch component?

CaCO3

I am trying to figure out how to use a signal of a QML Switch component (http://doc.qt.nokia.com/qt-components-symbian-1.0/qml-switch.html ).

According to above link (Qt components 1.0) it should work with the signal clicked, how ever I get this error:
Cannot assign to non-existent property "clicked"

I had a look on /usr/lib/qt4/imports/com/nokia/meego/Switch.qml.
It defines the following signals:

```
  onClicked
```
```
 onPositionChanged
```
```
 onReleased
```
```
 onCanceled
```

But none of them works either :(

Below is a example code.
The version with the CheckBox and Button work fine.

@import QtQuick 1.0
import com.nokia.meego 1.0

Column{

Switch{

// clicked: { console.log("Switch toggled") }
// onClicked: { console.log("Switch toggled") }
// onPositionChanged: { console.log("Switch toggled") }
// onReleased: { console.log("Switch toggled") }
// onCanceled: { console.log("Switch toggled") }
}

CheckBox{

onClicked: { console.log("checkbox toggled") }
}

Button{

text: "Button"
onClicked: { console.log("Button clicked") }
}

}@

srikanth_trulyit

clicked is a signal, so you should have a signal handler namely onClicked, You cannot use it as a property.
@
Switch {
id: mySwitch
onClicked: console.debug("switch is clicked");
}
@

CaCO3

Did you try it yourself?
Because for me it doesn't work either:
Cannot assign to non-existent property "onClicked"

srikanth_trulyit

Yes, I tried on Symbian components. Since it is a non-platform specific property it should work on Meego.

CaCO3

Hmmm, that really surprises me :(

I tested it on my Linux PC as well as on My N950 (Harmattan).
I both OS I get this error:
Cannot assign to non-existent property "onClicked"

In google I found this page which should be reference to the switch component for Harmattan:
http://library.developer.nokia.com/topic/MeeGo_1.2_Harmattan_API/html/qt-components/qt-components-meego-switch.html
How ever this page seems not to exist anymore. Here is a cached version from google:
http://webcache.googleusercontent.com/search?q=cache:iF5s0BE30BUJ:library.developer.nokia.com/topic/MeeGo_1.2_Harmattan_API/html/qt-components/qt-components-meego-switch.html+qml+switch&cd=3&hl=de&ct=clnk&client=ubuntu

To my surprise, there is no signal mentioned. :(
As a comparison, the checkbox has a signal clicked:
http://webcache.googleusercontent.com/search?q=cache:tP2Tj6DNmCgJ:library.developer.nokia.com/topic/MeeGo_1.2_Harmattan_API/html/qt-components/qt-components-meego-checkbox.html+qml+checkbox&cd=6&hl=de&ct=clnk&client=ubuntu

So I am wondering, why does it work on Symbian but not under Linux/Harmattan?

cpscotti

Hey CaCO3,

I think I have the solution:
@
Switch {
id: switch2
checked: true
onCheckedChanged: {
console.log("test")
}
}
@
Tried it on my n950 and it worked flawlessly. How I figured it out? QtCreator's Auto-complete.. :D

CaCO3

Thank you very much :)

I completely stopped using QtCreator.

When I started with QML, everybody told me not to use QtCreator as it doesn't work well.
And indeed, the graphical part never worked for me.
Because of that I changed to the normal text editor.

cpscotti

CaCO3,
Lol! Well, the auto-complet/code-assist thing's not perfect but helps a lot. The same for the integrated documentation, not perfect but helps.
The graphical thing's really badly useless/broken and using it's completely out of the question.
Except when you just want to see "what's possible".. like a quick documentation on styles, anchors.. properties.. etc.

All in all, I'm enjoying Qt Creator a lot.. they are working hard on it and it's getting better and better everyday. :D

CaCO3

You are right, its a great tool and I am looking forward to see it working.

How ever as a Linux freak I often write smaller projects in a plain text editor and compile in the terminal. Linux has such good plain text editors and its so much faster.
Also, when you type the code by hand you also understand what you do :)

But you are right, in the beginning i also used QtCreator to generate example code. Now I just forgot about that nice tool :)