I am trying to quickly prototype something - I am stuffing a bunch of
subclassed UIButton controls into a UIScrollView. I would like to access
those items later from another method, but I don't know how to properly
access them without resorting to an NSArray approach.
I have this (setState is a method in the BasicListItem subclassed UIButton
class):
int yPos = 0;
for(int i = 0; i<20; i++ ){
BasicListItem *listItem = [[BasicListItem alloc]
initWithFrame:CGRectMake(9,yPos,302,26)];
listItem.tag = i;
[listItem setTitleColor:[UIColor blackColor]
forState:UIControlStateNormal];
[listItem setTitle:@" Music" forState:UIControlStateNormal];
[listItem addTarget:self action:@selector(buttonClicked:)
forControlEvents:UIControlEventTouchUpInside];
yPos += 44;
[scrollView addSubview:listItem];
//[itemView addSubview:listItem];
}
scrollView.contentSize = CGSizeMake(itemView.frame.size.width, yPos);
}
In another method I try to access all of those elements in the scrollview...
(which barfs)
-(void) buttonClicked:(id)sender
{
int tag = [sender tag];
for(int i=0;i<20;i++){
BasicListItem *tmp = (BasicListItem*)[scrollView viewWithTag:i];
if( tag != i ){
[tmp setState:NO]; //Barf here
}
}
NSLog(@"%d",tag);
}
*** Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[UIScrollView setState:]: unrecognized selector sent to instance
0x593e820'
How can I dig into the scrollview and access those BasicListItem objects?
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