Question

I can’t get this code to work.

Declared playpauseButton just above the given below statements

UIButton *playpauseButton = [UIButton buttonWithType:UIButtonTypeCustom];

Getting local declaration of playpauseButton hides instance variable warning message for following statements

playpauseButton addTarget:self action:@selector(playpauseAction:) forControlEvents:UIControlEventTouchUpInside];
playpauseButton.frame = CGRectMake(0, 0, 30, 30);
[playpauseButton setImage:[UIImage imageNamed:@"Play Icon.png"] forState:UIControlStateNormal];
[playpauseButton setImage:[UIImage imageNamed:@"pause.png"] forState:UIControlStateSelected];
UIBarButtonItem *play = [[UIBarButtonItem alloc] initWithCustomView:playpauseButton];

After i defined playpauseAction method

-(void)playpauseAction:(id)sender {    
if( playpauseButton.state == UIControlStateNormal ){
    [sender setImage:[UIImage imageNamed:@"pause.png"] forState:UIControlStateSelected];
[audioPlayer play];
self.timer = [NSTimer scheduledTimerWithTimeInterval:11.0
                                    target:self
                                    selector:@selector(displayviewsAction:)
                                    userInfo:nil
                                    repeats:NO];
}  else if (playpauseButton.state == UIControlStateSelected)
{
[sender setImage:[UIImage imageNamed:@"Play Icon.png"] forState:UIControlStateNormal];
[audioPlayer pause];
 [self pauseTimer];
 } else if (playpauseButton.state == UIControlStateNormal)
{
[sender setImage:[UIImage imageNamed:@"pause.png"] forState:UIControlStateSelected];
[audioPlayer play];
[self resumeTimer];}}

Some help please.

Thanks.

Answer 1

It’s telling you that you have two declarations of playpauseButton. One is in the interface section of your class (the instance variable) and the other is a local variable.

It’s not an actual error but the warning tells you that you may get results different from what you want.