Yes, I can! The problem is when I close the app and start it again. The result
is null.
Data is not being persisted and I do t understand why... :(
--
Nuno Santos
No dia 15/11/2018, às 19:07, jlk <jlk2...@gmail.com> escreveu:
> Hi Nuno,
>
> Can you save and restore a simple NSObject, say an NSString?. If so, your
> problem is probably with converting the QVariant to NSObject. I have not used
> Qt with iOS yet so I don't have any deeper help than that, sorry!
> However, Maybe there are helper functions you need to write first? Could
> you use a JSON converter to represent your QVariant as an (NS)string for
> storage?
> Colin
>
>> On 11/15/18 1:31 PM, Nuno Santos wrote:
>> Colin,
>>
>> Thanks for your reply.
>>
>> While you are right considering the code I have posted here, the truth is
>> that in my actual code I have the setObject. But since I have more stuff
>> going on I didn’t want to flood the list with code:
>>
>> void Settings::setSharedKey(QString key, QVariant value)
>> {
>> if (defaults==nil)
>> defaults = [[NSUserDefaults alloc]
>> initWithSuiteName:@“group.com.acme.app"];
>>
>> [defaults setObject:[ISettingsManagerCocoaHelper
>> variantToNSObject:value] forKey:key.toNSString()];
>> [defaults synchronize];
>> }
>>
>> I’m still struggling with this. I can’t have the settings saved.
>> I’m tired to googling and trying stuff.
>>
>> Any ideas? Do you have anything similar?
>>
>> Thanks!
>>
>> Regards,
>>
>> Nuno
>>
>>> On 15 Nov 2018, at 17:17, Colin Worth <jlk2...@gmail.com> wrote:
>>>
>>> Hi Nuno,
>>> You are missing a line, something like:
>>>
>>> [defaults setValue:object forKey:key]
>>>
>>> in setSharedKey.
>>>
>>>>
>>>> From: Nuno Santos <nunosan...@imaginando.pt>
>>>> Subject: [Interest] Qt iOS / App Groups / NSUserDefaults initWithSuiteName
>>>> / Not persisting
>>>> Date: November 14, 2018 at 7:24:06 AM AST
>>>> To: "interest@qt-project.org Interest" <interest@qt-project.org>
>>>>
>>>>
>>>> Hi,
>>>>
>>>> I’m trying to persist data in a App Group on Qt iOS app to share data
>>>> between a standalone app and app extension.
>>>>
>>>> I have been reading on how to do it and apparently is dead simple ->
>>>> https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html#//apple_ref/doc/uid/TP40014214-CH21-SW6
>>>>
>>>> The problem is that it is not persisting data….
>>>>
>>>> I’m starting to question the model I’m following in terms of code. I have
>>>> my Settings manager in C++. What I have done was to create a
>>>> SettingsCocoa.mm file that does what is below.
>>>>
>>>> In a app session, the value is persisted but as soon as I start the app
>>>> again, the value is null.
>>>>
>>>> As anyone experienced similar issues before? Any ideas would be highly
>>>> appreciated.
>>>>
>>>> Thanks in advance.
>>>>
>>>> Best regards,
>>>>
>>>> Nuno
>>>>
>>>>
>>>> #include "Settings.h"
>>>>
>>>> #import <Foundation/Foundation.h>
>>>> #include <QDebug>
>>>>
>>>> static NSUserDefaults *defaults = nil;
>>>>
>>>> QVariant Settings::sharedKey(QString key, const QVariant &defaultValue)
>>>> const
>>>> {
>>>> if (defaults==nil)
>>>> defaults = [[NSUserDefaults alloc]
>>>> initWithSuiteName:@"group.com.acme.app"];
>>>>
>>>> NSObject *value = [defaults valueForKey:key.toNSString()];
>>>> NSLog(@"get object: %@", value);
>>>> }
>>>>
>>>> void Settings::setSharedKey(QString key, QVariant value)
>>>> {
>>>> if (defaults==nil)
>>>> defaults = [[NSUserDefaults alloc]
>>>> initWithSuiteName:@"group.com.acme.app"];
>>>>
>>>> NSObject *object = [ISettingsManagerCocoaHelper
>>>> variantToNSObject:value];
>>>> NSLog(@"set object: %@", object);
>>>>
>>>> sharedKey(key, value);
>>>>
>>>> [defaults synchronize];
>>>> }
>>>>
>>
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