Question

I got two properties initialized in header file:

@property (readwrite, assign) int Figure1;
@property (readwrite, assign) int State;

and in .m

@synthesize Figure1;
@synthesize State;

Then I got

UISwipeGestureRecognizer *swipeLeft = 
    [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeLeftMade:)] autorelease];
    [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
    [self addGestureRecognizer:swipeLeft];

and

UITapGestureRecognizer *oneFingerTwoTaps = 
    [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(ooneFingerTwoTaps)] autorelease];
    [oneFingerTwoTaps setNumberOfTapsRequired:2];
    [oneFingerTwoTaps setNumberOfTouchesRequired:1];
    [self addGestureRecognizer:oneFingerTwoTaps];

initialized in the class.

The methods called:

- (void)ooneFingerTwoTaps
{
    [NSThread detachNewThreadSelector:@selector(oneFingerTwoTaps) toTarget:self withObject:nil];
}

- (void)swipeLeftMade:(UISwipeGestureRecognizer *)recognizer
{
    [NSThread detachNewThreadSelector:@selector(moveLeftSwipe) toTarget:self withObject:nil];
}

In the first thread there is the main program:

- (void)oneFingerTwoTaps
{
    PlayScene *tView = [[PlayScene alloc]initWithFrame:CGRectMake(0, 0, 320, 420)];
    [self addSubview:tView];
    while (GameState==GamePlaying) {
        Figure1 = 1; State = 1;
        [self moveFig];
    }
}

In the second thread I need to use the values of properties that are changed on the first thread

-(void)moveLeftSwipe  {
int fset = State, figure=Figure1;
//some other stuff
}

But the problem is that the value of properties isn’t shared between threads, I was told that “nonatomic” might cause such problem, but I didn’t use it. May be I am declaring something wrong?

Answer 1

Just used static variables instead of properties. Static variables are shared between threads.