NSMutableDictionary with UIButton* as keys - iPhone development

Question

I\'m new to iPhone development and I have a question that may have a very simple answer. I am trying to add buttons to a view and these buttons are associated with a custom clas

Answer 1

UIButtons have a description property that can be used as a dictionary key:

NSMutableDictionary *myDictionary = [[NSMutableDictionary alloc] initWithCapacity:1];
UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 10.0f, 10.0f)];
id myObject;
[myDictionary setObject:myObject forKey:myButton.description];

// somewhere else in code
id myLookedUpObject = [myDictionary objectForKey:myButton.description];
// do something with myLookedUpObject