Question

is there any way to add a DatePicker to settings?

Answer 1

Sorry, you can’t add time picker in the iOS settings.
There is no option for adding the TimePicker using the settings.bundle root plist.

Please check the Implementing an iOS Settings Bundle

These are the major option provided for the settings.

Text field

The text field type displays a title (optional) and an editable text
field. You can use this type for preferences that require the user to
specify a custom string value.

The key for this type is PSTextFieldSpecifier.

Title

The title type displays a read-only string value. You can use this
type to display read-only preference values. (If the preference
contains cryptic or nonintuitive values, this type lets you map the
possible values to custom strings.)

The key for this type is PSTitleValueSpecifier.

Toggle switch

The toggle switch type displays an ON/OFF toggle button. You can use
this type to configure a preference that can have only one of two
values. Although you typically use this type to represent preferences
containing Boolean values, you can also use it with preferences
containing non-Boolean values.

The key for this type is PSToggleSwitchSpecifier.

Slider

The slider type displays a slider control. You can use this type for a
preference that represents a range of values. The value for this type
is a real number whose minimum and maximum value you specify.

The key for this type is PSSliderSpecifier.

Multivalue

The multivalue type lets the user select one value from a list of
values. You can use this type for a preference that supports a set of
mutually exclusive values. The values can be of any type.

The key for this type is PSMultiValueSpecifier.

Group

The group type is for organizing groups of preferences on a single
page. The group type does not represent a configurable preference. It
simply contains a title string that is displayed immediately before
one or more configurable preferences.

The key for this type is PSGroupSpecifier.

Child pane

The child pane type lets the user navigate to a new page of
preferences. You use this type to implement hierarchical preferences.
For more information on how you configure and use this preference
type, see “Hierarchical Preferences.”

The key for this type is PSChildPaneSpecifier.