Question

What I want to realize is:

When I touch a button, the image display on the view for 1 sec, then the image disappear.

I know that a NSTimer will help, but i dont know how to write the right code…need your help, thanks.

- (IBAction)bodytouched:(id)sender {  
bodytouchedimage.hidden = NO;
    bodytouchedimage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"beated.jpg"]];
    bodytouchedimage.userInteractionEnabled = YES;
    timer = [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(showPictures:) userInfo:nil repeats:NO];
}


- (void)showPictures:(NSTimer *)timer {     
bodytouchedimage.hidden = YES;
}

Answer 1

What you should to is call the showPictures function when you touch the button and then within the showPictures method you add a NSTimer that will call a hidePictures method 1 second later

- (void)showPictures 
{
    bodytouchedimage.hidden = NO;
    [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(hidePictures) userInfo:nil repeats:NO];
}

- (void)hidePictures
{
    bodytouchedimage.hidden = YES;
}