Cascades Development

[schumi1331]

Hello everyone

I'm brandnew in this Cascades stuff and lot is different than in QtQuick on Symbian, that's why I have one, well two small questions:

1) How can I handle touch events. For example I want to design an element in form of a button, but without using the predefined one. Basically it is a container with color and a label in it. And I want to give a basic animation, so I'm looking for two methods equal to onPressed and onReleased, to change the background color, when the user presses on the button, and to return it to the default color, when he releases it.

2) Is there any kind of Qt Assistant for Cascades? I could only find the online help/API reference here, but it is so messed up in my opinion and functions like searching are missing. In the best case this documentation is downloadable and usable fully offline.

I hope, you can help me...

Best Regards,

Sebastian

[kylefowler]

Each item has a touch signal that you can attach a slot to or in qml just do onTouch: { }

[schumi1331]

Tried that as well, but the result is, that the button changes the color when I release the button only. How to do get, that the button was pressed OR released? This is the part I don't understand...

[simon_hain · Accepted solution]

I worked on a similar issue today. You can query the type of the touch event like this:

onTouch: {
    if (event.touchType == TouchType.Down) {
      //doStuff     
    }
}

 I used this to make a whole container to a button, regardless of its content.

[kylefowler]

theres also helper methods.

event.isDown()
event.isMove()
event.isUp()

[bcs925]

I have found it best to create the custom components then tie a gestureHandlers to it, to mimic a single "onTouch" you would use the "onTapped" gesture. However not sure if you can have an isUp or isDown event on that gesture so i dont know if you'll be able to have the button look like it is "being pressed".

[gdev001]

Hello,

I have exactly the same problem as your problem #1.

i.e.,

1) How can I handle touch events. For example I want to design an element in form of a button, but without using the predefined one. Basically it is a container with color and a label in it. And I want to give a basic animation, so I'm looking for two methods equal to onPressed and onReleased, to change the background color, when the user presses on the button, and to return it to the default color, when he releases it.

Could you please tell me how/if you solved it???

Thanks.

[simon_hain]

please open a new thread for your issue. you can link relevant threads if you want.