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
<mailto: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
<mailto: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 <mailto:interest@qt-project.org>
Interest" <interest@qt-project.org <mailto: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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