我使用this后的代码在我的应用程序中显示一个操作表。但它表明像iPad UIActionSheet not showing
会有什么原因呢?
我的代码显示动作片是
UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:nil
cancelButtonTitle:nil
destructiveButtonTitle:nil
otherButtonTitles:nil];
[actionSheet setActionSheetStyle:UIActionSheetStyleBlackTranslucent];
CGRect pickerFrame = CGRectMake(0, 40, 300, 300);
UIView *pickerView = [[UIView alloc] initWithFrame:pickerFrame];
pickerView.backgroundColor=[UIColor blackColor];
[actionSheet addSubview:pickerView];
UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Close"]];
closeButton.momentary = YES;
closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f);
closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
closeButton.tintColor = [UIColor blackColor];
[closeButton addTarget:self action:@selector(dismissActionSheet:) forControlEvents:UIControlEventValueChanged];
[actionSheet addSubview:closeButton];
[actionSheet showInView:[[UIApplication sharedApplication] keyWindow]];
[actionSheet setBounds:CGRectMake(0, 0, 320, 485)];
[self.view addSubview:actionSheet];
Atleast给按钮一些标题。否则它不会出现。 – 2012-02-29 09:52:10