iOS - 关闭呈现为inputView的UIDatePicker

Question

我的UI中有一个文本字段，当它被选中时会显示一个UIDatePicker而不是默认键盘，如何在用户完成时设置一个按钮来关闭选择器？

Answer 1

我所做的是将我的inputView作为自定义视图，其中包含一个UIDatePicker和一个工具栏，上面有一个“完成”按钮连接到一个方法，该方法调用委托方法告诉拥有UITextField的对象解除“键盘”通过调用resignFirstResponder 。

Answer 2

Create a UIView (namely customDatePickerView) and in that view ,create datepicker and a done button and a cancel button in the xib. In the textfield delegate:

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    if (textField == textfieldName) {
        [textfieldName resignFirstResponder];
         //show the view
         self.customDatePickerView.hidden = NO;

    }

}//dismisses keyboard

Function on Date Picker Value Changed

- (IBAction)onDatePickerClick:(id)sender {

    NSDateFormatter  *dateFormatter = [[NSDateFormatter alloc]init];
    [dateFormatter setDateFormat:@"MM/dd/YYYY"];
    NSDate *selectedDate = [self.wellRecordDatePicker date];
    NSString *recordDate = [dateFormatter stringFromDate:selectedDate];
    self.yourTextfieldName.text = recordDate;


}

- (IBAction)onDoneBtnClick:(id)sender
{
       self.customDatePickerView.hidden = YES;
}
- (IBAction)onCancelBtnClick:(id)sender
{
       self.customDatePickerView.hidden = YES;
}

Hope this will help you.

Answer 3

You can solve this by adding this

[self.view endEditing:YES];

Add this where you want to dismiss date picker like i have added this on tap gesture
On viewDidLoad added a Tapgesture

 UITapGestureRecognizer *gesRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)]; // Declare the Gesture.
    gesRecognizer.delegate = self;
    [self.view addGestureRecognizer:gesRecognizer];

After adding this on viewdidLoad Add this method to detect gesture recognizer

- (void)handleTap:(UITapGestureRecognizer *)gestureRecognizer{
    NSLog(@"Tapped");
    [self.view endEditing:YES];
}

Answer 4

I've done a similar thing where I've created a view with a button and the UIDatePicker , then presented that view instead of the UIDatePicker alone. Then the button is just connected to an IBAction that moves the view out.

This way, the button moves in with the UIDatePicker view and they look "connected" to the user. You can even define this UIView in your nib and use addSubview: at runtime.