如何从底部获取这些小视图以显示在iOS SDK中？

Question

我在谈论当你需要确认某些动作时，带有按钮的小窗口。例如，如果要从相册中删除照片并按垃圾桶图标，则会从底部跳转一个小视图，询问您是要删除照片还是取消

如何让这些观点出现？

Answer 1

使用UIActionSheet。

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Some Action"
                                           delegate:self 
                                  cancelButtonTitle:@"Cancel"
                             destructiveButtonTitle:@"OK"
                                  otherButtonTitles: nil];

actionSheet.actionSheetStyle = UIActionSheetStyleDefault;
[actionSheet showInView:self.view];
[actionSheet release];

Answer 2

您需要查看UIActionSheet对象：http://developer.apple.com/library/ios/#documentation/uikit/reference/UIActionSheet_Class/Reference/Reference.html

此处的示例：http://ykyuen.wordpress.com/2010/04/14/iphone-uiactionsheet-example/