objective-c - 隐藏的导航栏导致操作表出现问题

我的uinavigationbarcontroller中的导航栏是隐藏的，但我的操作表认为它仍然存在，因此在操作页面顶部（如上所示）为我提供了亮点。如何清除此动作/欺骗我的动作表以使其视为正常的uiimageview？

导航栏在didLoad中这样隐藏：

[self.navigationController setNavigationBarHidden:YES animated:NO];

和：

-(void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];

    if (![self.navigationController isNavigationBarHidden])
    {
        [self.navigationController setNavigationBarHidden:YES animated:animated];
    }
}

操作表在didLoad中如下所示：

actionSheet = [[UIActionSheet alloc] initWithTitle:@"" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil];

UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 200,320,16)];
[pickerToolbar sizeToFit];
    pickerToolbar.barStyle = UIBarStyleBlackTranslucent;

NSMutableArray *barItems = [[NSMutableArray alloc] init];

    UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonSystemItemCancel target:self action:@selector(cancel_clicked:)];
    [barItems addObject:cancelBtn];

    UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    [barItems addObject:flexSpace];

UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(done_clicked:)];

    [barItems addObject:doneBtn];
    [pickerToolbar setItems:barItems animated:YES];
    [actionSheet addSubview:pickerToolbar];

UIPickerView *locationPicker = [[UIPickerView alloc] init];
locationPicker.frame = CGRectMake(0, 244, 320, 216);
locationPicker.delegate  = self;
locationPicker.dataSource = self;
locationPicker.showsSelectionIndicator = YES;
locationPicker.tag = 1;
[actionSheet addSubview:locationPicker];

然后在textfield touch上对其进行动画处理。

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    if (textField == locationTextField.self)
    {
        [actionSheet showInView:self.view];
        [actionSheet setFrame:CGRectMake(0, 0, 320, 480)];
        [nameField resignFirstResponder];
    }
}

最佳答案

我认为问题在于您选择显示操作表的视图。尝试在应用程序的主窗口中显示它。