UIActionSheet

UIActionSheet

• 继承自UIView
• IOS9后苹果不再建议使用UIActionSheet，而是使用UIAlertController（IOS8推出），因此要注意版本适配

UIActionSheet的实现指示器效果

- (void)useActionSheet
{
    UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"警告：确定要删除它？" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"确定" otherButtonTitles:@"随便", nil];

    [sheet showInView:self.view];
}

#pragma mark - <UIActionSheetDelegate>
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    // 点击sheet按钮执行的代码
}