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UIActionSheet+BlockExtensions.m
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UIActionSheet+BlockExtensions.m
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//
// UIActionSheet+BlockExtensions.m
//
// Created by Tom Fewster on 25/10/2011.
//
#import "UIActionSheet+BlockExtensions.h"
#import <objc/runtime.h>
@implementation UIActionSheet (BlockExtensions)
- (id)initWithTitle:(NSString *)title completionBlock:(void (^)(NSUInteger buttonIndex, UIActionSheet *actionSheet))block cancelButtonTitle:(NSString *)cancelButtonTitle destructiveButtonTitle:(NSString *)destructiveButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ... {
objc_setAssociatedObject(self, "blockCallback", [block copy], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
if (self = [self initWithTitle:title delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil]) {
if (destructiveButtonTitle) {
[self addButtonWithTitle:destructiveButtonTitle];
self.destructiveButtonIndex = [self numberOfButtons] - 1;
}
id eachObject;
va_list argumentList;
if (otherButtonTitles) {
[self addButtonWithTitle:otherButtonTitles];
va_start(argumentList, otherButtonTitles);
while ((eachObject = va_arg(argumentList, id))) {
[self addButtonWithTitle:eachObject];
}
va_end(argumentList);
}
if (cancelButtonTitle) {
[self addButtonWithTitle:cancelButtonTitle];
self.cancelButtonIndex = [self numberOfButtons] - 1;
}
}
return self;
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
void (^block)(NSUInteger buttonIndex, UIActionSheet *actionSheet) = objc_getAssociatedObject(self, "blockCallback");
block(buttonIndex, self);
//Block_release(block);
}
@end