Uibutton events - iphone

Question

-(void)mybuttonclick{
UGFloat p=120;
for(int i=0;i<3;i++){
UIButton *aa = [UIButton buttonWithType:UIButtonTypeCustom];
if(i==0){
NSString *name=[[NSString alloc]initWithString#"ZERO"];
}else if(i==1){
NSString *name=[[NSString alloc]initWithString#"ONE"];
}else if(i==2){
NSString *name=[[NSString alloc]initWithString#"Two"];
}else{
NSString *name=[[NSString alloc]initWithString#"Three"];
}
[aa setFrame:CGRectMake(0.0f, 0.0f, 500.0f, 40.0f)];
[aa setCenter:CGPointMake(100.0f,p)];
[aa setBackgroundColor:[UIColor blueColor]];
[aa addTarget:self action:#selector(fullscreen:) forControlEvents:UIControlEventTouchUpInside];
[self.window addSubview:aa];
p=p+50;
}
}
//----------------fullscreen method--------------------
-(void) fullscreen:(id)sender{
NSLog(#"button pressed on %#",[sender Stringvalue]);
}
Here I created 3 UIButtons dynamically. When I press the first button I want to display ZERO. When pressing the second one, print ONE... then Two, then Three. How can I do this? I know it can be done using selector key work, but I don't know how.

Answer 1

You aren't telling the button about name anywhere. You could set it in the title buttons title with [aa setTitle:name forState:UIControlStateNormal]; then access it in fullscreen: with [sender currentTitle].
If you want the message to be independent of the title you could either make your own subclass of UIButton to store the message or have a different target action for each button.
Also, the way you are constructing the names is fragile. Something like this might be better:
NSArray* names = [NSArray arrayWithObjects:#"ZERO",
#"ONE",
#"Two",
#"Three",
nil];
for (NSString* name in names) {
// Do stuff with name
}