Question

my app cant seem to find the selector (submitScore:) but i have already declared it

here :

 @interface Highscores (Private)
    - (void)loadCurrentPlayer;
    - (void)loadHighscores;
    - (void)updateHighscores;
    - (void)saveCurrentPlayer;
    - (void)saveHighscores;
    - (void)button1Callback:(id)sender;
    - (void)button2Callback:(id)sender;
    -(void)button3Callback:(id)sender;
    -(void)submitScore:(id)sender;
    -(void)viewBoard:(id)sender
@end

then it is called in here:

    UIButton *mybutton1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    mybutton1.frame=CGRectMake(80, 50, 150, 40);
    [mybutton1 setTitle:@"Submit Score" forState:UIControlStateNormal];
    [mybutton1 addTarget:self action:@selector(submitScore:) forControlEvents:UIControlEventTouchUpInside];
    UIButton *mybutton2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    mybutton2.frame=CGRectMake(80,100,150,40);
    [mybutton2 setTitle:@"View Leaderboard" forState:UIControlStateNormal];
    [mybutton2 addTarget:self action:@selector(viewBoard:) forControlEvents:UIControlEventTouchUpInside];

    [myView addSubview:mybutton1];
    [myView addSubview:mybutton2];
    [myView release];

}

-(void)submitScore
{
    NSString *request_url = [NSString stringWithFormat: @"http://192.168.18.8/lboard/addrank.php?did=%@&sre=%@&nme=%@&fmt=jsn",
                             currentScore, currentPlayer];
    NSURL *url = [NSURL URLWithString:request_url]; 
    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
    request.delegate=self;
    [request setDidFinishSelector:@selector(requestFinished:)];
    [request setDidFailSelector:@selector(requestFailed:)]; 
    [request startAsynchronous];

whenever i press one of those 2 buttons i get this error:

2011-12-22 14:27:32.462 tweejump[5381:707] -[Highscores submitScore:]: unrecognized selector sent to instance 0x267970
2011-12-22 14:27:32.469 tweejump[5381:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[Highscores submitScore:]: unrecognized selector sent to instance 0x267970'

terminate called throwing an exceptionProgram received signal:  “SIGABRT”.

i tried the solutions on other topics like weak linking the lib but i still get that error.

what else should i do? how can i remove the SIGABRT?

thanks

Answer 1

You’ve specified myButton1‘s selector to be for a method with the signature of - (void)submitScore:(id)sender when in actuality your method signature is - (void)submitScore.

Set the selector to myButton1 to @selector(submitScore).