Not Triggering event handler of UIButton from a Method

Question

I just need to trigger a UIButton programmatically . I have seen many of posts such as http://stackoverflow.com/questions/5625651/programmatically-fire-button-click-event

[btnLocations sendActionsForControlEvents:UIControlEventTouchDown];

This statement working fine in the " viewDidLoad " and also in another button handler.

-(void)viewDidLoad
{
[btnName2 sendActionsForControlEvents:UIControlEventTouchDown];
}

&&&&&&&

- (IBAction)btnName1:(id)sender {
[btnName2 sendActionsForControlEvents:UIControlEventTouchDown];
}

This works fine . but why it is not triggering from user defined method. Like this :

-(void) myMEthod
{
  if(true)
{
 [btnName2 sendActionsForControlEvents:UIControlEventTouchDown];
}
}

Simple one . But I didn't get the reason

I just need to know why it is not happening ?? And any alternative to achieve it?

Thanks.

is the user defined method called from the main thread? If not, you'll need to do a performSelectorOnMainThread since UI events must be run on the main thread. — Mike M, May 02 '13 at 11:39
@MikeM : How to call from mainThread. basically It has happening from MainThread only but I'm not sure\. — Kumar KL, May 02 '13 at 11:47
I'm achieving the functionalities of "myMethod" except this statement. — Kumar KL, May 02 '13 at 11:53
ok, I've added an answer that shows how to invoke a call on the main thread. Not sure that's the issue, but maybe :) — Mike M, May 02 '13 at 11:55

score 3 · Accepted Answer · answered May 02 '13 at 11:53

3

Could be an issue trying to invoke a UI event on another thread. Try adding this:

    - (void)fireButtonEvent:(id)unused
    {
            [btnName2 sendActionsForControlEvents:UIControlEventTouchDown];
    }

and then call using

    [self performSelectorOnMainThread:@selector(fireButtonEvent:)
          withObject:nil
          waitUntilDone:false];

answered May 02 '13 at 11:53

Mike M

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Works fine . Thanks but Not included all functionalities . Here adding – Kumar KL May 02 '13 at 12:10
Its triggering for some Logs , Actually I'm adding subView to the View . but It is not happening from this way . Happening perfectly from UI Click – Kumar KL May 02 '13 at 12:14

Not Triggering event handler of UIButton from a Method

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