ios - 子视图的特定颜色和形状？

Question

我想显示这样的子视图（当我尝试转发邮件时出现）。如何选择这种阴影颜色？非常感谢你。

Answer 1

实际上这是 UIActionSheet，下面是它的代码

UIActionSheet *actionSheet;

 actionSheet = [[UIActionSheet alloc] initWithTitle:@"Choose Option" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles: @"Rispondi",@"Rispondi a tutti",@"inoltra",@"stampa",nil];
 actionSheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;
 [actionSheet showInView:self.view];