Question

I have this inside my viewController:

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {

    if (event.type == UIEventSubtypeMotionShake) {

        NSLog(@"I have shaked");

    }
}

Why is this not working? Edit:

I do infact have this:

- (void) viewWillAppear:(BOOL)animated
{
    [shakeView becomeFirstResponder];
    [super viewWillAppear:animated];
}
- (void) viewWillDisappear:(BOOL)animated
{
    [shakeView resignFirstResponder];
    [super viewWillDisappear:animated];
}

Answer 1

If the UIViewController is loaded at the very start of the application, I ve seen an odd glitch in OS 3.0 where it would not become the first responder unless you delayed the appropriate message a bit. Try placing

[self performSelector:@selector(becomeFirstResponder) withObject:nil afterDelay:0.3];

within -loadView or something else that is called when the controller is first set up.

There may be a more elegant way to work around this, but this approach has worked for me.

Answer 2

The viewController must be the first responder during the shake to receive this event.

This could be one reason it s not working.

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