Selector on multiple objects

Question

Is there any provision in objective c so that I can call same selector on multiple object.
Some thing like jQuery does. I referred this link but it requires all objects in array to invoke selector makeObjectsPerformSelector.
For example I have following code:

[_addButton setTarget:myObject];
[_deleteButton setTarget:myObject];
[_editButton setTarget:myObject];

to a line some thing like

[_addButton, _deleteButton, _editButton setTarget:myObject];

I know it is syntactically not making any sense on objective-c, but is there any trick ?

another common thing is "for all views V in my subviews, if V is a UIButton, do this" — Fattie, Sep 15 '14 at 12:50
Another one is .. "for all X in blah, is X **responds to** wah, do x way". Check out **respondsToSelector** examples — Fattie, Sep 15 '14 at 12:51

score 2 · Accepted Answer · answered Sep 15 '14 at 13:04

2

I prefer blocks.

[@[self.addButton, self.deleteButton, self.editButton] enumerateObjectsUsingBlock:^(UIButton* btn, NSUInteger idx, BOOL *stop){
    btn.target = myObject;
}];

answered Sep 15 '14 at 13:04

Cy-4AH

4,370
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score 1 · Answer 2 · answered Sep 15 '14 at 12:51

1

You can easily put your objects in a temporary array and use makeObjectsPerformSelector like this:

[@[_addButton, _deleteButton, _editButton] makeObjectsPerformSelector:@selector(setTarget:) withObject:myObject]

answered Sep 15 '14 at 12:51

sgvd

3,819
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Selector on multiple objects

2 Answers2