Cascades Development

[tanphat1412]

When I make a count function to get how many times a picture is touched.

But when i touch picture just 1 time, but the function show 2.

I don't know what is going on. Please help.

Thanks.

[Zmey]

Can you post the relevant code please?

[tanphat1412]

ImageView {
	id: image01
	imageSource: "asset:///images/01.jpg"
	onTouch: {
		nav.count = nav.count + 1;
	}
}

[Zmey]

Probably you receive events for touch down and touch up. Try:

if (event.touchType == TouchType.Up)
{
  // increment the counter
}

[tanphat1412]

Where I can apply this code, in QML or Qt, I have tried on QML but there is no Touch Up or Down?

[Zmey · Accepted solution]

Can you try this one please? (in QML)

onTouch: {
  if (event.isDown()) {
    // ...
  }
}

Here is a list of all touch events:

https://developer.blackberry.com/cascades/reference/bb__cascades__touchevent.html#isdown

Q_INVOKABLE functions and slots can be called from QML.