B4A Library [B4X] AS WheelDateTimePicker - based on ASWheelPicker

Alexander Stolte · Jul 5, 2022

This is a date and time picker in IOS picker design.

This library is based on the ASWheelPicker, without it the library will not work.

[B4X] [XUI] AS WheelPicker - Spinner - a modern single/multiple choice picker view - based on xCustomListView [Payware]

Hello, this is a modern wheel picker, like the IOS-PickerView. WheelPicker/Spinner This library is not free, because, it cost a lot of time and gray hair to create such views. https://payhip.com/b/IvqnN Thanks for your understanding. :) V3.00-Preview B4I-Preview - looks nicer and smoother in...

www.b4x.com

Use:

B4X:

AS_WheelDateTimePicker1.Create

ASWheelDateTimePicker
Author: Alexander Stolte
Version: 1.00

ASWheelDateTimePicker_MonthName
- Fields:
  - April As String
  - August As String
  - December As String
  - February As String
  - IsInitialized As Boolean
    Tests whether the object has been initialized.
  - January As String
  - July As String
  - June As String
  - March As String
  - May As String
  - November As String
  - October As String
  - September As String
- Functions:
  - Initialize
    Initializes the fields to their default value.
ASWheelDateTimePicker_MonthNameShort
- Fields:
  - April As String
  - August As String
  - December As String
  - February As String
  - IsInitialized As Boolean
    Tests whether the object has been initialized.
  - January As String
  - July As String
  - June As String
  - March As String
  - May As String
  - November As String
  - October As String
  - September As String
- Functions:
  - Initialize
    Initializes the fields to their default value.
ASWheelDateTimePicker_WeekNameShort
- Fields:
  - Friday As String
  - IsInitialized As Boolean
    Tests whether the object has been initialized.
  - Monday As String
  - Saturday As String
  - Sunday As String
  - Thursday As String
  - Tuesday As String
  - Wednesday As String
- Functions:
  - Initialize
    Initializes the fields to their default value.
AS_WheelDateTimePicker
- Events:
  - SelectedDateChanged (Date As Long)
  - SelectedTimeChanged (Hour As Int, Minute As Int)
- Fields:
  - mBase As B4XView
  - Tag As Object
- Functions:
  - Class_Globals As String
  - CreateASWheelDateTimePicker_MonthName (January As String, February As String, March As String, April As String, May As String, June As String, July As String, August As String, September As String, October As String, November As String, December As String) As ASWheelDateTimePicker_MonthName
  - CreateASWheelDateTimePicker_MonthNameShort (January As String, February As String, March As String, April As String, May As String, June As String, July As String, August As String, September As String, October As String, November As String, December As String) As ASWheelDateTimePicker_MonthNameShort
  - CreateASWheelDateTimePicker_WeekNameShort (Monday As String, Tuesday As String, Wednesday As String, Thursday As String, Friday As String, Saturday As String, Sunday As String) As ASWheelDateTimePicker_WeekNameShort
  - DesignerCreateView (Base As Object, Lbl As Label, Props As Map) As String
    Base type must be Object
  - getHour As Int
  - getMinute As Int
  - Initialize (Callback As Object, EventName As String) As String
  - IsInitialized As Boolean
    Tests whether the object has been initialized.
- Properties:
  - Hour As Int [read only]
  - Minute As Int [read only]

Changelog

1.00
- Release
1.01
- BugFixes
1.02
- Add set Hour
- Add set Minute
- Add set Date
1.03
- Add Refresh
1.04
- BugFixes
- PickerType = DatePicker - The days in the month now adjust automatically
- Add Designer Property TextColor
- Add Designer Property FadeColor
- Add Designer Property HapticFeedback
1.05
- Add Designer Property TodayText
  - Default: Today
- Add get and set TodayText - Call Refresh if you change something
1.06
- BugFixes
1.07
- BugFixes - AM and PM mode works now as expected
- BugFixes - setDate Number of days is now adjusted
1.08
- Add get and set FadeColor
- Add get and set TextColor
- Add get and set SelectorColor
- Add get and set BackgroundColor
- MonthName now comes from the DateUtils
1.09
- BugFixes
1.10
- BugFixes
1.11
- Add Designer Property MinuteSteps - 1-5-10-15 Block Interval
  - Default: False
1.12
- BugFixes
1.13
- Add get WheelPicker - gets the wheelpicker to modify font etc.
1.14 (read more)
- You need AS_WheelPicker V3.15+ for this update
- If a month has 30 or 28 days, then these are now no longer removed from the list, but the new EnabledRow is used and the affected items are deactivated.
  - This prevents the list from behaving in an unusual way.
- Add MinDate and MaxDate - You can specify a DateRange what may be selected
1.15
- You need AS_WheelPicker V3.20+
- Breaking Change: You need to call Create
  - The view will not be built without it
  - Now you can make changes to the proepties without calling refresh at the beginning
  - Faster loading time
  - No crashes
- Add SetDateTextOrder - You can change the text order of the date text
- BugFixes
- Add Event CustomDrawItemChange

Have Fun

MarcoRome · Sep 21, 2022

Hi dear.

A few questions:
1. How can I set the background color. In this case I have entered the same color as the Panel but it is always black. For example i set the same color as the panel in the designer but as you can see from the image the object remains black
2. How can i set the time to automatically exit the current time, for the moment always hour: 00 minute: 00. As you can see from the image it starts with today but the time is always set to zero Even if i use

B4X:

AS_WheelDateTimePicker1.Hour = 10

dont changes
3. I noticed that if the panel starts in invisible mode, when it comes back visible and you try to change date or time with object AS_WheelDateTimePicker it crashes.

Attached example

I think it is the best datetimepicker available for ios and droid

Thank you @Alexander Stolte

Alexander Stolte · Sep 21, 2022

MarcoRome said:
1. How can I set the background color. In this case I have entered the same color as the Panel but it is always black. For example i set the same color as the panel in the designer but as you can see from the image the object remains black

Don't use colors with a alpha, lower than 255.

MarcoRome said:
2. How can i set the time to automatically exit the current time, for the moment always hour: 00 minute: 00. As you can see from the image it starts with today but the time is always set to zero Even if i use

B4X:

AS_WheelDateTimePicker1.Hour = 10

dont changes

Fixed in the next update of the 2 libs.

MarcoRome said:
3. I noticed that if the panel starts in invisible mode, when it comes back visible and you try to change date or time with object AS_WheelDateTimePicker it crashes.

This is the native behavior of android scrolllist. I added a xCustomListView to the panel and scrolled to the last item while the panel was still invisible. The result, the list did not scroll when the list was invisible.
So unfortunately there is nothing I can do. The WheelPicker must be visible when building. You can also load the DatePicker only when you need it, in release mode this is fast, I also do this in combination with the FloatingPanel.

Alexander Stolte · Sep 21, 2022

Update

1.06
- BugFixes

MarcoRome said:
I think it is the best datetimepicker available for ios and droid

thanks

astronald · Sep 30, 2022

Hi Alexander, have nice programming day
set hour and minute how works?

Set Hour and minute:

wp.Hour = DateTime.GetHour(Inicio)
wp.Minute = DateTime.GetMinute(Inicio)
Log(DateTime.GetHour(Inicio) & "," & wp.Hour)
Log(DateTime.GetMinute(Inicio) & "," & wp.Minute)

log:

Inicio= 14:03
14,11
3,3

at the phone

What is worng?
Thanks for your help.

MarcoRome · Sep 30, 2022

Hi dear
if i have this code

B4X:

DateTime.DateFormat = "MM/dd/yyyy"
AS_WheelDateTimePicker1_dalla_data.Date = DateTime.DateParse($"01/01/${DateTime.GetYear(DateTime.Now)}"$)
AS_WheelDateTimePicker1_dalla_data.Refresh

The date doesn't change, it is always today's date.
Any solution ?
Thank you

MarcoRome · Sep 30, 2022

Another thing.
if you enter Picker Type: DatePicker
select today's date 30/09/2022 by default, but unfortunately it also goes to 31/09 (which does not exist) causing the following crash

Error: Invalid value: d.C.20220931 000000
Error occurred on line: 878 (ASWheelPicker)
java.lang.NumberFormatException: For input string: "invalid date"
at jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054)

MarcoRome · Sep 30, 2022

MarcoRome said:
Hi dear
if i have this code

B4X:

DateTime.DateFormat = "MM/dd/yyyy" AS_WheelDateTimePicker1_dalla_data.Date = DateTime.DateParse($"01/01/${DateTime.GetYear(DateTime.Now)}"$) AS_WheelDateTimePicker1_dalla_data.Refresh

The date doesn't change, it is always today's date.
Any solution ?
Thank you

if you compile it works (does not show the 31st for September) maybe it's just a problem in debug (takes some time to load the object? ). In any case, there are no problems in compiling

MarcoRome · Sep 30, 2022

MarcoRome said:
Hi dear
if i have this code

B4X:

DateTime.DateFormat = "MM/dd/yyyy" AS_WheelDateTimePicker1_dalla_data.Date = DateTime.DateParse($"01/01/${DateTime.GetYear(DateTime.Now)}"$) AS_WheelDateTimePicker1_dalla_data.Refresh

The date doesn't change, it is always today's date.
Any solution ?
Thank you

if you change the date later, for example when you view the panel where the object is inserted. Work, change the date ?

Alexander Stolte · Sep 30, 2022

I will check the described problems and publish an update in the near future.

Alexander Stolte · Oct 3, 2022

Update

1.07
- BugFixes - AM and PM mode works now as expected
- BugFixes - setDate Number of days is now adjusted

astronald said:
set hour and minute how works?

AM and PM mode works now as expected.

MarcoRome said:
The date doesn't change, it is always today's date.
Any solution ?

Put a Sleep(0) before you change the date.

MarcoRome said:
if you enter Picker Type: DatePicker
select today's date 30/09/2022 by default, but unfortunately it also goes to 31/09 (which does not exist) causing the following crash

setDate Number of days is now adjusted

MarcoRome · Oct 3, 2022

Alexander Stolte said:
Update

1.07

BugFixes - AM and PM mode works now as expected

BugFixes - setDate Number of days is now adjusted

AM and PM mode works now as expected.

Put a Sleep(0) before you change the date.

setDate Number of days is now adjusted

with new Rel. i have this error:

Error occurred on line: 0 (ASWheelPicker)
java.lang.Exception: Sub xwp_wheel_itemchange signature does not match expected signature.
public static anywheresoftware.b4a.pc.RemoteObject net.taxitaormina.app.as_wheeldatetimepicker_subs_0._xwp_wheel_itemchange(anywheresoftware.b4a.pc.RemoteObject,anywheresoftware.b4a.pc.RemoteObject,anywheresoftware.b4a.pc.RemoteObject,anywheresoftware.b4a.pc.RemoteObject) throws java.lang.Exception
class anywheresoftware.b4a.pc.RemoteObject, class anywheresoftware.b4a.pc.RemoteObject, class anywheresoftware.b4a.pc.RemoteObject,

Alexander Stolte · Oct 3, 2022

MarcoRome said:
with new Rel. i have this error:

download again.

MarcoRome · Oct 4, 2022

Alexander Stolte said:
download again.

Now work.
Thank Alexander

astronald · Oct 20, 2022

Hi Alexander
i modified this, please correct me if this is wrong

Gert Hour:

Public Sub getHour As Int
    Dim hora As Int = xwp_Wheel.GetSelectedItem(IIf(m_Date,1,0)).Value
    If xwp_Wheel.GetSelectedItem(IIf(m_Date,3,2)).Text.EqualsIgnoreCase("PM") And xwp_Wheel.GetIndex(IIf(m_Date,1,0)) > 0 Then
        hora = hora +12
    End If
    Return hora
End Sub

and this another suggestion, taking advantage of that DateUtils Locale MonthNames from device

Get Month Names:

Public Sub CreateASWheelDateTimePicker_MonthName (January As String, February As String, March As String, April As String, May As String, June As String, July As String, August As String, September As String, October As String, November As String, December As String) As ASWheelDateTimePicker_MonthName
    Dim t1 As ASWheelDateTimePicker_MonthName
    t1.Initialize
    t1.January = DateUtils.GetMonthsNames.Get(0)
    t1.February = DateUtils.GetMonthsNames.Get(1)
    t1.March = DateUtils.GetMonthsNames.Get(2)
    t1.April = DateUtils.GetMonthsNames.Get(3)
    t1.May = DateUtils.GetMonthsNames.Get(4)
    t1.June = DateUtils.GetMonthsNames.Get(5)
    t1.July = DateUtils.GetMonthsNames.Get(6)
    t1.August = DateUtils.GetMonthsNames.Get(7)
    t1.September = DateUtils.GetMonthsNames.Get(8)
    t1.October = DateUtils.GetMonthsNames.Get(9)
    t1.November = DateUtils.GetMonthsNames.Get(10)
    t1.December = DateUtils.GetMonthsNames.Get(11)
    Return t1
    
End Sub

Alexander Stolte · Oct 20, 2022

astronald said:
i modified this, please correct me if this is wrong

The question is, why?
Either you have the wheelPicker in 24 hour format, then you select 0-23, or you have AM/PM, then you can only select 0-11, so you don't have to convert it?

astronald · Oct 20, 2022

A question How i change FadeColor And TextColor Programatically,
I try with this but not succes!

Color:

    xwp_Wheel.FadeColor = m_FadeColor
    xwp_Wheel.ItemTextProperties.TextColor = m_TextColor
    xwp_Wheel.Refresh

astronald · Oct 20, 2022

Alexander Stolte said:
The question is, why?
Either you have the wheelPicker in 24 hour format, then you select 0-23, or you have AM/PM, then you can only select 0-11, so you don't have to convert it?

When I change PM And get Hour This is 12 + Selected item

Alexander Stolte · Oct 20, 2022

Update

1.08
- Add get and set FadeColor
- Add get and set TextColor
- Add get and set SelectorColor
- Add get and set BackgroundColor
- MonthName now comes from the DateUtils

astronald said:
When I change PM And get Hour This is 12 + Selected item

True, but then you should convert that outside the library, I don't know the 12 hour format well as I live in 24 format.

astronald said:
A question How i change FadeColor And TextColor Programatically,

don't do it in the .bas file and tell me that the properties are missing, so i can make an update

astronald · Oct 20, 2022

Alexander Stolte said:
Update

1.08

Add get and set FadeColor

Add get and set TextColor

Add get and set SelectorColor

Add get and set BackgroundColor

MonthName now comes from the DateUtils

True, but then you should convert that outside the library, I don't know the 12 hour format well as I live in 24 format.

don't do it in the .bas file and tell me that the properties are missing, so i can make an update

Thanks very Much, but set textColor only afect new items as 31, i think is necesary Colored all items

astronald · Oct 20, 2022

Alexander Stolte said:
True, but then you should convert that outside the library, I don't know the 12 hour format well as I live in 24 format.

For this can you add get AMPM property
Thanks very Much
something

Code:

Hour = dtp.Hour +iif(dtp.AMPM,12,0)

B4A Library [B4X] AS WheelDateTimePicker - based on ASWheelPicker

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