我想在几个视图的clickedButtonAtIndex
中提供相同的按钮和相同的功能,我可以在可重用的类中执行此操作吗?
如果是这样的话?
答案 0 :(得分:1)
一种方法是将您的动作表+委托封装到一个新类中:
@interface MyActionSheet : NSObject <UIActionSheetDelegate>
{
UIActionSheet* _actionSheet;
}
@end
@implementation MyActionSheet
- (id) initAndShowInView: (UIView*) view
{
if ( (self = [super init] ) )
{
_actionSheet = [[UIActionSheet alloc] initWithTitle: @"Hi There" delegate:self cancelButtonTitle:@"done" destructiveButtonTitle: nil otherButtonTitles: @"button 1", @"button2", nil];
[_actionSheet showInView:view];
}
return self;
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
// your logic here
}
- (void)dealloc {
[_actionSheet release];
[super dealloc];
}
@end
这可以扩展为添加您可能需要的委托方法。当动作表可见时,您需要确保对象继续存在(保留对象) - 动作表不会增加其委托的引用计数...