Creating UIButton programmatically with custom class - ios

Question

I want to create 3-4 buttons programmatically but with a custom class and a specific value/key pair, but I struggle on how to do this exactly.
The button I want to create must have a custom class named "AnswerButton". Adding a UIButton.tag shouldnt be a problem, so I can exactly tell what button has been clicked, right?
Here is the code I use to create buttons:
NSMutableArray *catNames;
catNames = [NSMutableArray arrayWithCapacity:5];
[catNames addObject:#"Boote"];
[catNames addObject:#"Gewässer"];
[catNames addObject:#"Technik"];
[catNames addObject:#"Krims Krams"];
[self dynamiclyCreateButtons:4 :catNames];
- (void)dynamiclyCreateButtons:(int)howMany :(NSMutableArray*)catNames {
float standard_btnHeight = 30.0;
float standard_btnWidth = 200.0;
CGFloat p = 120;
for(int i = 0; i != howMany; i++){
UIButton *catBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[catBtn setFrame:CGRectMake(0.0f, 0.0f, standard_btnWidth, standard_btnHeight)];
[catBtn setCenter:CGPointMake(100.0f, p)];
[catBtn setTitle:[catNames objectAtIndex:i] forState:UIControlStateNormal];
[catBtn addTarget:self action:#selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:catBtn];
p=p+40;
catBtn = nil;
}
}
//Edit
What I mean by custom class:
https://i.stack.imgur.com/8r2oz.png
//Edit 2 (The correct answer, since I cannot post an answer myself to point it out better)
Just here to point it out and find the answer easier: Answer by Greg is correct.
You shouldn't create the buttons with the default class but with your custom class instead:
Replace
UIButton *catBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
with
AnswerButton *catBtn = [AnswerButton buttonWithType:UIButtonTypeRoundedRect];
Dont forget to import the class!

Answer 1

Try This...
-(void)dynamiclyCreateButtons:(int)howMany :(NSMutableArray*)catNames {
float standard_btnHeight = 30.0;
float standard_btnWidth = 200.0;
CGFloat p = 120;
for(int i = 0; i != howMany; i++){
UIButton *catBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[catBtn setFrame:CGRectMake(0.0f, 0.0f, standard_btnWidth, standard_btnHeight)];
[catBtn setCenter:CGPointMake(100.0f, p)];
[catBtn setTag:i];
[catBtn setTitle:[catNames objectAtIndex:i] forState:UIControlStateNormal];
[catBtn addTarget:self action:#selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:catBtn];
p=p+40;
catBtn = nil;
}
}
- (IBAction)buttonClicked:(id)sender
{
NSLog(#"Button.Tag = %d",[sender tag]);
}
EDIT: If you want to use the custom class, you have to create a class inherited from UIButton. Then import this class in your view controller.
After that replace UIButton with YourCustomButton like..
YourCustomButton *catBtn = [YourCustomButton buttonWithType:UIButtonTypeRoundedRect];