我一直在使用 UIPickerView
,我的问题很简单,如何在显示Picker视图显示时如何禁用视图,以确保用户不会更改视图中的任何内容。我已经尝试使用setuserInteractinEnabled
:方法,但它也在禁用选择器视图..?
我必须做类似的事情,然后对UIActionSheet
进行了 CC_3以在其上添加picker视图。当动作表启动时,您无法与基础视图进行交互。
您可以在此处找到一些示例,因此如何将UIPickerView
添加到UIActionSheet
,例如如何在uiactionsheet中添加uipickerview
您有几个选择:
- 如果您使用的是iPad,请在弹出窗口中显示选择器:popover
- 如果您使用的是iPhone:Action Sheet
- 使用当前的模态视图控制器显示选择器
这3个选项可以阻止父视图触摸事件。
@interface ViewController : UIViewController{
UIView *viewBack;
}
在viewDidLoad:
中,方法只需定义此viewBackwith框架即。
- (void)viewDidLoad
{
viewBack = [[UIView alloc] initWithFrame:CGRectMake(95, 230, 130, 40)];
viewBack.backgroundColor = [UIColor blackColor];
viewBack.alpha = 0.7f;
viewBack.layer.masksToBounds = NO;
viewBack.layer.cornerRadius = 8;
viewBack.hidden =YES;
}
当您想在当时显示UIPickerView
时,该方法显示这样的屏幕。
-(IBAction)btnPickerViewOpen_Clicked:(id)sender{
viewBack.hidden = NO;
[self.view bringSubviewToFront:viewBack];
[self.view bringSubviewToFront:yourPickerView];
}
当您当时想隐藏UIPickerView
时,请使用波纹管...
-(IBAction)btnPickerViewClosed_Clicked:(id)sender{
viewBack.hidden = YES;
// also hide pickerview with your requirement
}
我希望这对您有帮助...
我通常会添加50%透明度和黑色背景 - 解决三个问题:
:- 自定义视图(Pickerview或任何其他用户输入字段)
- 昏暗的背景 - 以便用户注意到需要完成的操作
- 仅在pickerview/text Input/etc etct 上可用的用户互动
您只需要尝试@rene jennrich答案..您需要查看一些示例。
UIActionSheet *inputActionSheet = [[UIActionSheet alloc] initWithTitle:nil
delegate:nil
cancelButtonTitle:nil
destructiveButtonTitle:nil
otherButtonTitles:nil];
[inputActionSheet setActionSheetStyle:UIActionSheetStyleBlackTranslucent];
UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0,320,40)];
[pickerToolbar sizeToFit];
pickerToolbar.barStyle = UIBarStyleBlackTranslucent;
NSMutableArray *barItems = [[NSMutableArray alloc] init];
UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancelButtonPressed:)];
[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(doneButtonPressed:)];
[barItems addObject:doneBtn];
[pickerToolbar setItems:barItems animated:YES];
[inputActionSheet addSubview:pickerToolbar];
UIPickerView fontPickerView = [[UIPickerView alloc]initWithFrame:CGRectMake(0, 40, 0, 0)];
fontPickerView.showsSelectionIndicator = YES;
[fontPickerView setTag:1];
[fontPickerView setDelegate:self];
[fontPickerView setDataSource:self];
[inputActionSheet addSubview:fontPickerView];
[inputActionSheet showInView:[[UIApplication sharedApplication] keyWindow]];
[inputActionSheet setBounds:CGRectMake(0, 0, 320, 485)];
我也有同样的问题。当我在内部挖掘时,Uipickerview后面的按钮采取了行动,尽管看不见按钮只能看到pickerview。我已经使用"按钮操作"视图的隐藏属性对其进行了管理。喜欢
@IBAction func tapPrivacyPolicy(_ sender: Any) {
if viewDatePicker.isHidden == false { // means UIPickerView is Visible
return
}
//do other work
}
使选择器被单击:
fooPicker.isUserInteractionEnabled = false