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iOS

Posted by Paul Cisneros
Paul Cisneros
Courses Plus Student 2,117 Points

PhotoBombers - Stage 4 - Introducing Gesture Recognizers - Alert "Liked" not working

Here is my code for the two methods updated/created in this video:

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        self.imageView = [[UIImageView alloc] init];

        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(like)];
        tap.numberOfTapsRequired = 2;
        [self addGestureRecognizer:tap];

        [self.contentView addSubview:self.imageView];
    }
    return self;
}

- (void)like {

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Liked!" message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
    [alert show];

    double delayInSeconds = 1.0;
    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
    dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
        [alert dismissWithClickedButtonIndex:0 animated:YES];
    });

}

When I tap on a collection view cell, or a photo, in the simulator I'm not getting an alert like in the video. In fact, nothing happens at all. Even in the console.

I did notice that when I was typing in the 'dispatch_time' block of code, Xcode did not code complete like in the video.

Xcode instead gave me this:

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(<#delayInSeconds#> * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        <#code to be executed after a specified delay#>
    });

Which is different from the video.

I actually copy and pasted the code from the video from the project file at this stage into my own project.

Now I'm stuck at this point. Anyone else having this same issue?

1 Answer

Paul Cisneros
PLUS
Paul Cisneros
Courses Plus Student 2,117 Points
Paul Cisneros
Paul Cisneros
Courses Plus Student 2,117 Points

Nevermind, I figured it out.