gistfile1.m

- (void)presentPicker
{
    [Flurry logEvent:@"Picker presented"];

    self.picker =
            [[[MPMediaPickerController alloc]
                    initWithMediaTypes: MPMediaTypeAnyAudio] autorelease];
    [picker setDelegate:self];
    [picker setAllowsPickingMultipleItems:NO];
    picker.prompt = @"Choose sound to process";
 
    [self.delegate.navigationController pushViewController:self.picker animated:YES];
}
 
- (void)removePicker
{
    [Flurry logEvent:@"Picker removed"];

    [self.delegate.navigationController popViewControllerAnimated:NO];
    self.picker = nil;

    [Flurry logEvent:@"I'm pretty sure that picker just removed"];
}