Managing events on a custom UIControl

ios events uicontrol
Beav picture Beav · Mar 5, 2011 · Viewed 12.6k times · Source

I am subclassing UIControl to compose a custom control that contains different standard controls.

For this discussion let's assume that my custom UIControl contains a UIButton only.

What I would like to achieve is that clicking anywhere in the custom UIControl generates a click event for that custom UIControl. The standard behavior is that the UIButton will process and consume (i.e. not forward) the click event.

As subclassing UIButton is discouraged, I can't really find a straightforward way of achieving this.

Any suggestions?

Answer

Beav picture Beav · Mar 6, 2011

I came up with a simple solution that doesn't need subclassing of the UIButton.

In the action method defined for the UIButton's TouchUpInside control event, I have added the following line of code:

[self sendActionsForControlEvents:UIControlEventTouchUpInside];

This results in the TouchUpInside control event being called, when clicking anywhere in the custom UIControl.

Related questions

How to add a touch event to a UIView?

How do I add a touch event to a UIView? I try: UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, nextY)] autorelease]; [headerView addTarget:self action:@selector(myEvent:) forControlEvents:UIControlEventTouchDown]; // ERROR MESSAGE: UIView may not respond to '-addTarget:…

Read More
How can I detect screen lock/unlock events on the iPhone?

How can I detect screen lock/unlock events on the iPhone? When the user unlocks it, I want to show a notification alert from my iPhone app. (For Just like Broadcast Receiver for screen unlock in Android.)

Read More
Android equivalent to NSNotificationCenter

In the process of porting an iPhone application over to android, I am looking for the best way to communicate within the app. Intents seem to be the way to go, is this the best (only) option? NSUserDefaults seems much …

Read More