[Interest] How to get didFinishLaunchingWithOptions called in IOS delegate?

解晶 xie_jing at cdv.com
Wed Dec 3 04:02:33 CET 2014

We make a Qt application for ios and develop in a complete Qt environment, so need't see ios native code which 
Qt has wrapped well. But now we want to use some public SDKs which have to override  didFinishLaunchingWithOptions 
and openURL in ios application delegate.  

I find UIApplicationDidFinishLaunchingNotification in ios document, for the same reason, i don't know how to use it in my
Qt project.


在 2014-12-02 18:24:18,"Gustavsen Richard" <Richard.Gustavsen at theqtcompany.com> 写道:

Why do you need to override didFinishLaunchingWithOptions in this case? Can't you just call

[UIApplication sharedApplication] setMinimumBackroundFetchInterval:..] from e.g main.mm or somwhere else in your app?

(Note that you can also add your own observer for this using UIApplicationDidFinishLaunchingNotification)


Fra: interest-bounces+richard.gustavsen=theqtcompany.com at qt-project.org <interest-bounces+richard.gustavsen=theqtcompany.com at qt-project.org> på vegne av 解晶 <xie_jing at cdv.com>
Sendt: 2. desember 2014 09:55
Til: Yang Fan
Kopi: Qt Project
Emne: Re: [Interest] How to get didFinishLaunchingWithOptions called in IOS delegate?
Thans, Yang Fan. If has no good solution will use this method. All develop machines will have to set an environment 
and the header path may change in the future version. I wonder if there is any other good method to get the didFinishLaunchingWithOptions 

在 2014-12-02 16:27:12,"Yang Fan" <missdeer at gmail.com> 写道:

Set an environment QTDIR and add it to INCLUDEPATH.

On Tue, Dec 2, 2014 at 1:58 PM, 解晶 <xie_jing at cdv.com> wrote:

    I have a qt application for ios and try to get didFinishLaunchingWithOptions() called. 
I got it work by extending QIOSApplicationDelegate like the followings:

#import ".../qtbase/src/plugins/platforms/ios/QIOSApplicationDelegate .h"
@implementation QIOSApplicationDelegate 
    return YES;

    It really works but i have to import the absolute path of QIOSApplicationDelegate .h because i can't find the header file
in qt include folder. It may cause compile failed on other computers and i have to change my code if the path changed.
So is there a better way to call the didFinishLaunchingWithOptions in qt applications for ios?


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Fan Yang
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