如何确定在UIActionSheet上按下的按钮是取消按钮?
我的UIActionSheet设置如下:
-(IBAction)fileButtonPressed
{
UIActionSheet *mymenu = [[UIActionSheet alloc]
initWithTitle:@"Select Folder"
delegate:self
cancelButtonTitle:@"Cancel"
destructiveButtonTitle:nil
otherButtonTitles:nil];
for (i=0; i<3; i++)
{
[mymenu addButtonWithTitle:@"Button Name"];
}
[mymenu showInView:self.view];
}
我的问题是我无法区分取消按钮和第一个选择的按钮。
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSString *option = [actionSheet buttonTitleAtIndex:buttonIndex];
//buttonIndex == 0 if the cancel button is pressed or
//if the first item is pressed.
}
有更好的设置方法吗?