带有“完成”按钮的 UIDatePicker

Question

我需要在我的日期选择器中添加一个“完成”按钮，如下图所示：

这是我的代码：

-(IBAction)chooseDate:(id)sender{
self.datepicker= [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 0, 320, 216)];
    self.datepicker.datePickerMode = UIDatePickerModeDate;
    datepicker.backgroundColor = Rgb2UIColor(52, 170, 220);

    [self.btnDone
                addTarget:self
                action:@selector(SetDatePickerTime:)
                forControlEvents:UIControlEventTouchDown];

 [self.view addSubview:self.datepicker];
}

Answer 1

与斯威夫特

// Place this code inside your ViewController or where you want ;)

var txtField: UITextField = UITextField(frame: CGRectMake(0, 0, 200, 50))

// the formatter should be "compliant" to the UIDatePickerMode selected below
var dateFormatter: NSDateFormatter {
    let formatter = NSDateFormatter()
    // customize the locale for the formatter if you want
    //formatter.locale = NSLocale(localeIdentifier: "it_IT")
    formatter.dateFormat = "dd/MM/yyyy"
    return formatter
}

override func viewDidLoad() {
    super.viewDidLoad()

    // date picker setup
    let datePickerView:UIDatePicker = UIDatePicker()

    // choose the mode you want
    // other options are: DateAndTime, Time, CountDownTimer
    datePickerView.datePickerMode = UIDatePickerMode.Date

    // choose your locale or leave the default (system)
    //datePickerView.locale = NSLocale.init(localeIdentifier: "it_IT")

    datePickerView.addTarget(self, action: "onDatePickerValueChanged:", forControlEvents: UIControlEvents.ValueChanged)
    txtField.inputView = datePickerView

    // datepicker toolbar setup
    let toolBar = UIToolbar()
    toolBar.barStyle = UIBarStyle.Default
    toolBar.translucent = true
    let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
    let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: "doneDatePickerPressed")

    // if you remove the space element, the "done" button will be left aligned
    // you can add more items if you want
    toolBar.setItems([space, doneButton], animated: false)
    toolBar.userInteractionEnabled = true
    toolBar.sizeToFit()

    txtField.inputAccessoryView = toolBar

    self.view.addSubview(txtField)
}

func doneDatePickerPressed(){
    self.view.endEditing(true)
}

func onDatePickerValueChanged(datePicker: UIDatePicker) {
    self.txtField = dateFormatter.stringFromDate(datePicker.date)
}

Answer 2

创建一个日期选择器，然后将其添加为相关字段的输入视图（ self.fieldInQuestion.inputView = datePicker ）。 接下来，创建一个UIToolBar （高度 44）， UIBarButton有UIBarButton Item，标题为“Done”，目标为 self，还有一个选择器（例如 @selector(done)）。 将此添加为您将日期选择器设为输入视图的同一字段的输入附件视图（ self.fieldInQuestion.inputAccessoryView = UIToolbarInstance ）。 在选择器方法中（-(void)done 在上面的例子中），确保你使用 [self.fieldInQuestion resignFirstResponder] 并且它会关闭它。

Answer 3

您问题的参考图像显示该应用程序正在使用 UIToolbar，我将假设当点击日期文本字段时，会出现带有完成按钮的日期选择器。为此在 some.h 文件中

/*****keyboard Done button   ***/



#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
   IBOutlet UIDatePicker *picker1;
    IBOutlet UITextField *txtFld;

}
@property (nonatomic, retain) UIToolbar *keyboardToolbar;

@end

在一些.m文件中

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
 picker1=[[UIDatePicker alloc] initWithFrame:CGRectMake(0, 0, 320, 300)];//frames are just for demo
 [txtFld setInputView:picker1];
}

- (void)keyboardWillShow:(NSNotification *)notification
{
    if(keyboardToolbar == nil) {
        keyboardToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 410, 320, 44)] ;
        [keyboardToolbar setBarStyle:UIBarStyleBlackTranslucent];
        [keyboardToolbar sizeToFit];

        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:0.4];

        UIBarButtonItem *flexButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];

        UIBarButtonItem *doneButton1 =[[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleDone target:self action:@selector(resignKeyboard)];
        NSArray *itemsArray = [NSArray arrayWithObjects:flexButton,doneButton1, nil];

        [keyboardToolbar setItems:itemsArray];


        [txtFld setInputAccessoryView:keyboardToolbar];
        [self.view addSubview:keyboardToolbar];
        [UIView commitAnimations];
    }
}



-(void)resignKeyboard {

    [keyboardToolbar removeFromSuperview];
    [txtFld resignFirstResponder];
///do nescessary date calculation here

    }

Answer 4

在斯威夫特 5

//Create this variable
var picker:UIDatePicker?

//Write Date picker code
picker = UIDatePicker()
dobTF.inputView = picker//Change your textfield name
picker?.addTarget(self, action: #selector(handleDatePicker), for: .valueChanged)
picker?.datePickerMode = .date

//Write toolbar code for done button
let toolBar = UIToolbar()
toolBar.barStyle = .default
toolBar.isTranslucent = true
let space = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let doneButton = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(onClickDoneButton))
toolBar.setItems([space, doneButton], animated: false)
toolBar.isUserInteractionEnabled = true
toolBar.sizeToFit()
dobTF.inputAccessoryView = toolBar

//Date picker function
@objc func handleDatePicker() {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd-MM-yyyy" //Change your date formate
    let strDate = dateFormatter.string(from: picker!.date)
    dobTF.text = strDate
}

//Toolbar done button function
@objc func onClickDoneButton() {
    self.view.endEditing(true)
}

Answer 5

我愿意！！！！

-(IBAction)ChooseDate:(id)sender{

btnDone = [UIButton buttonWithType:UIButtonTypeRoundedRect];

[done setTitle:@"GO!" forState:UIControlStateNormal];
btnDone.backgroundColor = UIColorFromRGB(0x1F1F21);
btnDone.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[btnDone addTarget:self
           action:@selector(HidePicker:)
 forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btnDone];


    self.datepicker= [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 0, 320, 216)];
    self.datepicker.datePickerMode = UIDatePickerModeDate;
    datepicker.backgroundColor = Rgb2UIColor(52, 170, 220);
    
    [self.view addSubview:self.datepicker];
}


-(IBAction)HidePicker:(id)sender{
    [UIView animateWithDuration:0.5
                     animations:^{
                         datepicker.frame = CGRectMake(0, -250, 320, 50);
                     } completion:^(BOOL finished) {
                         [datepicker removeFromSuperview];
                         [btnDone removeFromSuperview];
                     }];

    [self.datepicker removeFromSuperview];
    NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];
    [outputFormatter setDateFormat:@"ddMMyyyy"];
   
    //NSLOG
    NSLog(@"%@",[outputFormatter stringFromDate:self.datepicker.date]);
}

Answer 6

创建一个UIView并将其添加到主视图中。 将UIDatePicker添加到新的UIView。 将两个UIButtons添加到UIView。