ubuntu-phone team mailing list archive

[Rick Spencer <rick.spencer@xxxxxxxxxxxxx>]

Hi.

I'm not sure how your code flows overall, but if you are creating all the
buttons at once, you might consider using a Repeater instead of doing it
all in javascript.

It looks like you might have some kind of list that fires a createButton
signal. You could potentially use that list as a model for a Repeater and
build your buttons in the delegate of the Repeater.

Cheers, Rick



On Tue, Apr 16, 2013 at 5:11 AM, Николай Шатохин <n.shatokhin@xxxxxxxxx>wrote:

> This is my code that creates buttons field:
>
> onCreateField:
> {
>     for(var i=0;i<fieldWidth;i++)
>     {
>         for(var j=0;j<fieldHeight;j++)
>         {
>             createButton(i, j);
>         }
>     }
> }
>
> function createButton(x, y)
> {
>     __buttonX = x;
>     __buttonY = y;
>
>     __component = Qt.createComponent("GameButton.qml");
>
>     if(__component != null)
>         continueButtonCreation();
>     else
>         __component.ready.connect(continueButtonCreation);
> }
>
> function continueButtonCreation()
> {
>     var button = __component.createObject(field, {"row": __buttonY, "column": __buttonX});
>
>      if (button == null) {
>          // Error Handling
>          console.log("Error creating object");
>
>          return;
>      }
>
>      updateValveState.connect(button.stateUpdated);
>      button.buttonClicked.connect(buttonClicked);
>
>      field.clearField.connect(button.release);
> }
>
>
> fieldWidth = fieldHeight = 16;
>
>
> 2013/4/16 Alex Tyler <alex.tyler@xxxxxxxxxx>
>
>> Can we see some code? The only time Images hang for me in QML is when
>> it's trying to load them synchronously. Try setting asynchronous to true.
>>
>> Cheers,
>> Alex
>>
>> On Tue, Apr 16, 2013 at 10:20 AM, <mrqtros@xxxxxxxxx> wrote:
>>
>>>  I thought Nick creates 1024 (16x16) buttons, lol =) And even did not
>>> thought - for what :D
>>>
>>> Of course code is extremely bad, if buttons with size 16x16 pixels
>>> creating slowly.
>>>
>>> 16.04.13 12:09 Michael Zanetti написал(а):
>>>  On Tuesday 16 April 2013 01:01:28 Николай Шатохин wrote:
>>> > Hello.
>>> >
>>> > In my code I'm creating 16x16 buttons in cycle and this take few
>>> seconds.
>>> > While function that creating buttons runs, app freezes. I want to show
>>> > loading animation while this function runs. So, how to run this
>>> function in
>>> > parallel thread to avoid freezing?
>>> >
>>> > Best regards,
>>> > Nick
>>>
>>>  Creating 16x16 buttons shouldn take a few seconds. Can you paste the
>>> code
>>> (also the button itself). To me it seems the issue is somewhere else,
>>> e.g. in
>>> the way you create the buttons or the buttens themselves are very slow.
>>>
>>>  Br,
>>> Michael
>>>
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>>
>
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