Popover for button created via code for long press - ios

Question

I know how to create popovers if my button added to story board, but how can I create popover if my button created via code.
UIButtonS *button = [UIButtonS buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:#selector(siteButtonPressed:)forControlEvents:UIControlEventTouchUpInside];
[button setTitle:string1 forState:UIControlStateNormal];
button.frame = CGRectMake(XLocatioan, YLocation, 90, 30);
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]
initWithTarget:self
action:#selector(handleLongPress:)];
longPress.minimumPressDuration = 1.0;
[button addGestureRecognizer:longPress];
[self.view addSubview:button];
- (void)handleLongPress:(UILongPressGestureRecognizer*)sender {
if (sender.state == UIGestureRecognizerStateEnded) {
}
else if (sender.state == UIGestureRecognizerStateBegan){
//create popover for button
}
}

Answer 1

You are already doing it right, but you are overthinking. There is no need to check the state of the gesture recognizer. If the target function has been triggered, it means that the user has done a long press. Also, note that not all of the values of the property state may be supported. As the documentation says: Some of these states are not applicable to discrete gestures.
So your code should look like this (unless you want to implement dragging or something similar):
UIButtonS *button = [UIButtonS buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:#selector(siteButtonPressed:)forControlEvents:UIControlEventTouchUpInside];
[button setTitle:string1 forState:UIControlStateNormal];
button.frame = CGRectMake(XLocatioan, YLocation, 90, 30);
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc]
initWithTarget:self
action:#selector(handleLongPress:)];
longPress.minimumPressDuration = 1.0;
[button addGestureRecognizer:longPress];
[self.view addSubview:button];
- (void)handleLongPress:(UILongPressGestureRecognizer*)sender {
//create popover for button
}
If your target is iOS 6+ you should use a UIPopoverController to create the popover, otherwise use UIAlertView.