getting the object passed to the NSThread selector

Question

When I\'m creating an NSThread I pass it a number that I want the process to be aware of. I can understand how to set the number but I cannot figure out how to read the numb

Answer 1

You're specifying your selector wrong:

@selector(startTimerThread)   // we are missing ':' at the end

It should have : at the end, like so:

@selector(startTimerThread:) 

This indicates it's a selector which takes one parameter.

Then take in the parameter in your startTimerThread method:

-(void) startTimerThread:(NSNumber *)myNumber {
    // ... etc

Answer 2

that will not work.. this will:

NSThread* timerThread = [[NSThread alloc] initWithTarget:self selector:@selector(startTimerThread:) object:[NSNumber numberWithInt:index]];


-(void) startTimerThread:(NSNumber *)thenumberhere
{


    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    NSRunLoop* runLoop = [NSRunLoop currentRunLoop];
    [[NSTimer scheduledTimerWithTimeInterval: 0.1
                                      target: self
                                    selector: @selector(timerTick:)
                                    userInfo: thenumberhere
                                     repeats: YES] retain];

    [runLoop run];
    [pool release];
}

you 'forgot' to add the object, that you pass along with the selector as a parameter, to the method you implemented.