I tried to read an Object :
-(NSMutableDictionary*) readMyObject:(NSData*)data;
{
NSError * error;
Class class = [NSMutableDictionary class];
NSMutableDictionary * dict;
dict = [NSKeyedUnarchiver unarchivedObjectOfClass:class
fromData:data error:&error];
return dict;
the result was nil.
I searched by Developer for a solution and found one :
{
// NSKeyedUnarchiver * unarchiver = [[NSKeyedUnarchiver alloc] init];
[unarchiver decodeObjectOfClasses:
[[NSSet alloc]initWithArray:
@[[NSDictionary class],
[NSMutableDictionary class],
[NSArray class],
[NSMutableArray class],
[NSString class], [NSNumber class]]]
forKey:NSKeyedArchiveRootObjectKey];
[unarchiver finishDecoding];
}
The first line was from me and it crashed the project.
I assume there is an easy answer, not for me.🥲
Uwe
Post not yet marked as solved
I tried to archive a NSDictionary with a NSColor :
data = [NSKeyedArchiver archivedDataWithRootObject: <vrRoot> requiringSecureCoding:YES error:&error];
and I get this error :
Printing description of error:
Error Domain=NSCocoaErrorDomain Code=4864 "value for key 'NS.objects' was of unexpected class 'NSColor' (0x7ff8465d0d88) [/System/Library/Frameworks/AppKit.framework].
Allowed classes are:
{(
"'NSMutableDictionary' (0x7ff8465f9b48) [/System/Library/Frameworks/CoreFoundation.framework]"
)}" UserInfo={NSDebugDescription=value for key 'NS.objects' was of unexpected class 'NSColor' (0x7ff8465d0d88) [/System/Library/Frameworks/AppKit.framework].
Allowed classes are:
{(
"'NSMutableDictionary' (0x7ff8465f9b48) [/System/Library/Frameworks/CoreFoundation.framework]"
)}}
Then I transferred NSColor to NSArray - but the error was the same.
I want data save in Core Data, please help me ♡.
Hello,
here is the block where arrayController is nil :
{
NSData * data;
NSError * error;
Class klass;
if(_arrayController != nil) // nil !
{
selected = [_arrayController selectedObjects];
arranged = [_arrayController arrangedObjects];
if([selected count] > 0)
{
_currentObject = [selected objectAtIndex:0];
if(_currentObject != nil)
{
data = [_currentObject valueForKey:kVrRoot];
klass = [NSMutableDictionary class];
_vrRoot =
[NSKeyedUnarchiver unarchivedObjectOfClass:klass fromData:data error:&error];
}else
{
_vrRoot = [NSMutableDictionary new];
data = [NSKeyedArchiver archivedDataWithRootObject:_vrRoot requiringSecureCoding:YES error:&error];
}
}
}
}
I use this for years so I don't no what's wrong.
Post not yet marked as solved
Hello, Metal is a hard biscuit.
the first part of my project is to draw wired platonic solids, I replaced the triangle with a cube which I want to rotate with two sliders.
But I don't no how, the MTKView is the view of the viewController, the sliders will rotate too, or not ?
Would you developers use the XIP ?
Hi , I got this quote with 5800 repetitions (5.8 MB / 1k) :
`2023-05-25 01:02:59.021733+0200 LookAt[6404:302136] [general] *** -[NSKeyedUnarchiver validateAllowedClass:forKey:] allowed unarchiving safe plist type ''NSNumber' (0x7ff84cfe02f8) [/System/Library/Frameworks/Foundation.framework]' for key 'NS.objects', even though it was not explicitly included in the client allowed classes set: '{(
"'NSMutableDictionary' (0x7ff84cfb6b48) [/System/Library/Frameworks/CoreFoundation.framework]",
"'NSArray' (0x7ff84cfb68a0) [/System/Library/Frameworks/CoreFoundation.framework]"
)}'. This will be disallowed in the future
`
-(IBAction)readFile:(id)sender
{
NSData * data;
NSError * error = nil;
data = [_vrReadWrite readData:kFileComponentA];
NSSet * set = [_vrReadWrite setOfClasses];
_vrRoot = [NSKeyedUnarchiver unarchivedObjectOfClasses:set
fromData:data error:&error];
}```
I got the expected result, that's fine, but I'm not interested in this future.
Uwe
Post not yet marked as solved
Hi,
the problem is not dangerous to life,
I don't want see the yellow button on top of the editor.
'Autoresizing Mask' is set to about 50 items, that works, except tableView, 10 warnings.
The tableView has 10 columns of 20 pixels width, min 10 and max 100000.
The ' Add new constraints' options are all grayed, so what ?
In an other project a warning was set for arrayController, I don't like Auto Layout,
the blue help lines are enough.
My question is : How do i can suppress this warnings ?
Kindly,
Uwe
Post not yet marked as solved
Hi, I used this notification in objective-c with success :
{
NSNotificationCenter * center = [NSNotificationCenter defaultCenter];
[center addObserver:self selector:@selector(rowSelectionDidChange:)
name:NSTableViewSelectionDidChangeNotification object:nil];
// ...
}
With Swift I got 5 errors:
selector: #selector: ( NSTableView.rowSelectionDidChange(_:)),
name:"NSTableViewSelectionDidChangeNotification",
object: nil)
I hope you can teach me. Uwe
Post not yet marked as solved
Hi, with my new iMac I want to continue learning swift,
I was told that the playground is a good tool and I trust.
I got the Xcode/New/Playground file and wrote some code - see it :
```import Cocoa
var greeting = "Hello, playground"
for i in 1...10{
print (i)
}
The same code runs on Xcode 9.2 (9C40b)
I can't help myself 🥲
Uwe
Edit:
I downloaded Michael Kofler's Swift 5 examples and they even did not run
Post not yet marked as solved
Hi,
in my first project (learning) i created a class and it works fine.
In the second I set an error, i should code "override class", although there is no parent class.
Please, make me stop crying.
Uwe
Post not yet marked as solved
Hello,
I'm working on a small project to draw Lyapunov-Diagrams.
For this matter I need to show 3 images.
To show that the code is not totally wrong, I attached a NSLog, witch shows text I do not understand.
I hope you can help me.
Mit freundlichen Grüßen
Uwe
NSLog
Post not yet marked as solved
Hi,
I have different displayLists (dL) to create,
8 lists have a own name, the work fine.
Then I have a dynamic structure of dLs, they are stored in c-arrays.
After i noticed that they are not shown, I made 2 dLs which differ in color and vertices.
drawRect:
glCallLists(2,GL_UNSIGNED_INT, test);
This is my list-array:
if(contentState[0] == 1)
{
glCallLists(contentCount,GL_FLOAT, curveList);
}
contentCount = 8 and the declaration is GLfloat curveList[20]
curveList has 8 display indices.
I hope I made a mistake and you find it :)
Uwe
Post not yet marked as solved
Hi,
I have no idea what happened, I got no warnings, no error.
When I used the Sandbox I got a GL_INVALID_VALUE error.
Please have I look at the attachments for illustration.
Post not yet marked as solved
This is not an error or warning, it appears in the console as a configuration error.
it's behind my horizon, maybe someone can tell.
Uwe
Post not yet marked as solved
Hi,
in the past, before apple killed opengl, I had access to the arrayController via outlet.
Because most samples from the internet use storyboard, me too.
I use a splitViewController with a source- and and a displayViewController.
I moved the notificationCenter and the tableView notification "selectionDidChange" to the sourceViewController.
Bindings are established.
Adding a new row I get my managedObject, but it is empty 😝.
I see the merit of storyboard but I'm ready to turn back to XIB.
Uwe
Post not yet marked as solved
Hi,
obj-c (void)viewDidLoad
{
[super viewDidLoad];
_view = (MTKView *)self.view;
_view.device = MTLCreateSystemDefaultDevice(); // - Error
.
.
.
}
with Xcode 9.3 it runs normal with 12.4 I get the note:
Failed to set (contentViewController) user defined inspected property on (NSWindow): -[NSView setDevice:]: unrecognized selector sent to...
Mit freundlichen Grüßen
Uwe
VanceRegnet.