如何在Xcode上的IBAction代码块之后调用方法

Question

I have created an iPhone board game. It has the ability to choose if user wants to play multi player or single player.

I've used the UIButton for the pieces in the board.

I have got one thing that I want to fix: In Single Player mode, I have implemented AI's turn into UIButton 's IBAction . But, in this case, there's no time there between player1's move and player2's move. Both gets executed at the same time.

I'd like to do this: Make human's move immediate, and then the computer thinks for his move. I don't want both moves come together and after that computer thinks to the move.

I know that the problem is that because the game reads the entire code block in IBAction and then he shows the result, but i don't know how to fix this.

Any suggestion?

If you need it, I can show the code, but I think (and I hope, too) that, you'll understand what i mean.

Because of the comments who requested it, here's the code..

-(void)buttonClickedSinglePlayer:(id)sender{

[self memorizzastatopartitapassato];
[self volumebottoni];
turno = [self whosTurn];
UIButton *bottoneCampoGioco = sender;
UIButton *bottoneIntelligente;

//Checks if it's Human's turn

if (turno == 0) {
    int valoreBottone = [bottoneCampoGioco.currentTitle intValue];
    if(valoreBottone< 10){

        //if controls are ok, it changes value of human's chosen button

        if((bottoneCampoGioco.currentTitleColor != [UIColor greenColor])){
            [UIView transitionWithView:bottoneCampoGioco duration:0.3 options:UIViewAnimationOptionTransitionFlipFromLeft animations:nil completion:nil];
            [bottoneCampoGioco setTitleColor:[UIColor redColor] forState: UIControlStateNormal];
            [bottoneCampoGioco setTitleColor:[UIColor redColor] forState: UIControlStateHighlighted];
            bottoneCampoGioco.titleLabel.shadowColor = [UIColor blackColor];
            [bottoneCampoGioco.titleLabel setShadowOffset:CGSizeMake(1.0f, 1.0f)];                [bottoneCampoGioco setBackgroundImage: [UIImage imageNamed:@"bottonerosso.png"] forState:UIControlStateNormal];

            [self incrementaTitoloOnClick :bottoneCampoGioco];
        }

        //else alert and loop to first line of the code, until he chooses a valid move
        else {
            [self posizionenonconsentita];
            turno = [self whosTurn];
            goto end;
        }
    }
    else{
        int x =[self mossedisponibilirosse];
        if (x== 1) {

            [self analizzavincitore];
        }

            [self numeroMax];
        turno = [self whosTurn];
        goto end;
    }


    turno = 1;
    [self analizzaBottoni:bottoneCampoGioco];
    [self aggiornapunteggi];
    [self memorizzastatopresente];

pragma mark Single Player's Action

    //Azione del giocatore singolo

    //changes turn token's value to allow to AI to play

    turno = [self whosTurn];
    turno = 0;

    ai = [[ArtificialIntelligence alloc]init];

    //send to AI's class the human's pressed button


    [ai setbottonepremuto:bottoneCampoGioco];
    [ai setDimensioneInput:dimensioneInput];

    //send the situation of the board

    [ai setSituazione:arraycampogioco];
    [ai setpunteggiogiocatori:volumerossi giocatoree2:volumeverdi];

    //get back the chosen button from ai's class
    bottoneIntelligente=[ai bottone];
    [mossaEffettuata setText:[self stringaCoordinateDaBottone:bottoneIntelligente]];
    int valoreBottone2 = [bottoneIntelligente.currentTitle intValue];

    //then changes the value of the button chosen from ai's class

    if(valoreBottone2< 10){

        [UIView transitionWithView:bottoneIntelligente duration:0.3 options:UIViewAnimationOptionTransitionFlipFromTop animations:nil completion:nil];
        [bottoneIntelligente setTitleColor:[UIColor greenColor] forState: UIControlStateNormal];
        [bottoneIntelligente setTitleColor:[UIColor greenColor] forState: UIControlStateHighlighted];
        bottoneIntelligente.titleLabel.shadowColor = [UIColor blackColor];
        [bottoneIntelligente.titleLabel setShadowOffset:CGSizeMake(1.0f, 1.0f)];
        [bottoneIntelligente setBackgroundImage: [UIImage imageNamed:@"bottoneverde.png"] forState:UIControlStateNormal];

        [self incrementaTitoloOnClick :bottoneIntelligente];
        [self analizzaBottoni:bottoneIntelligente];
        [self aggiornapunteggi];

    }

end:

    turno = [self whosTurn];
}
turno = [self whosTurn];
numeromosse ++;

}

Answer 1

If I understand correctly, you want to execute the AI section of the code after a delay. If you can refactor the code into another method, then you can use performSelector:withObject:afterDelay: which would look like:

[self performSelector:@selector(aiMove) withObject:nil afterDelay:2.0];

This would run the method after 2 seconds. Or you can use GCD's dispatch_after which looks like this (below). Place the code that you want to run after a delay into the block.

double delayInSeconds = 2.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){

 // 
 //Your code goes here
 //

 });