[Development] My Android QhrisTma5 wish list.

[gunnar.sletta at nokia.com]

On Jan 4, 2012, at 9:11 PM, ext BogDan wrote:

> Great !
> Is there any API to hide/show all app windows ? 
> Or I have to iterate all top level widgets and hide/show all of them ?

No such function, I'm afraid, but it is easy enough to iterate over QGuiApplication::topLevelWindows().

cheers,
Gunnar


> 
> 
> 
>> 
>> 
>> On Jan 3, 2012, at 7:24 PM, ext BogDan wrote:
>> 
>>> Hi again,
>>> 
>>> I forgot on item on my list, I hope is not too late :)
>>> A way to pause/resume the application (all QEventLoop(s)) from another 
>> thread.
>>> It is useful because Android tries to pause the application when it goes in 
>> background 
>>> 
>>> and some time it destroys some critical resources (e.g. the OpenGL context, 
>> etc).
>>> 
>>> If I can't pause the application (especially the drawings), it may 
>> crash, 
>> 
>> The scene graph and the GL context will actually be gracefully invalidated and 
>> deleted when the app window is hidden now. We do this allways now. No rendering 
>> happens then and animations switch to using timers rather than vsync to 
>> progress. Because timers and animations can still used to drive non-visual stuff 
>> they are still running, but graphics wise, the app is dead. 
>> 
>>> 
>> 
>>> 
>>> so it will be great if Q(Core)Application can be used to pause/resume all 
>> active QEventLoop(s).
>>> 
>>> Thanks.
>>> BogDan.
>>> 
>>> 
>>> 
>>> ----- Original Message -----
>>>> From: "marius.storm-olsen at nokia.com" 
>> <marius.storm-olsen at nokia.com>
>>>> To: development at qt-project.org; morten.sorvig at nokia.com
>>>> Cc: 
>>>> Sent: Friday, December 30, 2011 12:28 AM
>>>> Subject: Re: [Development] My Android QhrisTma5 wish list.
>>>> 
>>>> Depending on the level of platform differences between the three 
>> Android 
>>>> versions, we might be able to use the exclusive builds implementations, 
>> which we 
>>>> use for debug + release build on windows. We've already used it for 
>> 
>>>> 32bit/64bit in combination with debug + release, to give a 4x combo.
>>>> 
>>>> Nothing's impossible :-)
>>>> 
>>>> -- 
>>>> Sent from my Nokia N9On 12/29/11 15:41 Sorvig Morten (Nokia-MP/Oslo) 
>> wrote:
>>>> 
>>>> On Dec 22, 2011, at 9:20 PM, ext BogDan wrote:
>>>> 
>>>>>    - Menus, on android the menu bar is completely different from 
>> other 
>>>> platforms
>>>>>    , it is always hidden, and to make it visible the user must press 
>> the menu
>>>>>    button. Currently there is no way to do it, because QMenuBar is a 
>> widget 
>>>> and
>>>>>    even more is part of your application window.
>>>> 
>>>> Good news here, Qt 5 will soon have a MenuBar/Menu/MenuItem API that 
>> platforms 
>>>> can implement to "take over" menu handling. Currently we only 
>> have 
>>>> desktop platforms on the implementors list, so adding a mobile platform 
>> to the 
>>>> mix would be great to ensure we get a good API.
>>>> 
>>>>> 
>>>>>    - QMake build system. Android supports more than one platform 
>> bundled into
>>>>>    your application package (currently they are three platforms), 
>> android 
>>>> build
>>>>>    system compiles this platforms at once, sadly qmake build system 
>>>> doesn't
>>>>>    support this feature. QMake is ok for most of the platforms out 
>> there but 
>>>> for
>>>>>    Android it needs more love. Somebody blogged about a new  build 
>> system [1],
>>>>>    and I must confess that I was very impressed by the approach, but 
>> sadly, 
>>>> two
>>>>>    years latter, nothing happened ... This is a very important 
>> feature for 
>>>> this
>>>>>    port, without it we can never say we have a *complete* port for 
>> Android.
>>>> 
>>>> I've seen this problem before, for Qt 4 we did some configure 
>> script work to 
>>>> allow compiling for 32/64-bit ppc/x86 on Mac OS X (with the help of 
>> apple-gcc, 
>>>> which can produce binaries for several targets simultaneously.)
>>>> 
>>>> For Qt 5 I'm thinking that a better option is to set up multiple Qt 
>> builds 
>>>> and then create a deployment utility that can create the final package. 
>> Have you 
>>>> considered implementing something like this?
>>>> 
>>>> Morten
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
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