Hi there,
Got a problem with using the PreferencesDialog.
I have been trying to build a form that allows for quick entry of Wind Direction and Wind Speed.
I got something up and running using two Number fields which worked fine, created using the B4J Forms Builder.
After some advice from Erel, I decided to try and use the Numeric Range entry.
I created a new JSON file using the B4J Forms Builder, loaded into my code, and I get this error now when the dialog is presented:
The code presenting the sub is shown below - Line 122 is the Wait For (WindDialog) call.
Looking at the Preferences Dialog Demo, I can't see anything special about using a number with a range in terms of the code calling the Dialog - both use a map to return the values.
Am I missing something here?
Thanks for any help.
JMB
Got a problem with using the PreferencesDialog.
I have been trying to build a form that allows for quick entry of Wind Direction and Wind Speed.
I got something up and running using two Number fields which worked fine, created using the B4J Forms Builder.
After some advice from Erel, I decided to try and use the Numeric Range entry.
I created a new JSON file using the B4J Forms Builder, loaded into my code, and I get this error now when the dialog is presented:
B4X:
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
Error occurred on line: 122 (B4XPlusMinus)
java.lang.NumberFormatException: empty String
at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1071)
at java.lang.Double.parseDouble(Double.java:547)
at anywheresoftware.b4a.BA.ObjectToNumber(BA.java:667)
at b4a.example.b4xplusminus._setselectedvalue(b4xplusminus.java:652)
at b4a.example.preferencesdialog._filldata(preferencesdialog.java:2540)
at b4a.example.preferencesdialog$ResumableSub_ShowDialog.resume(preferencesdialog.java:590)
at b4a.example.preferencesdialog._showdialog(preferencesdialog.java:408)The code presenting the sub is shown below - Line 122 is the Wait For (WindDialog) call.
B4X:
Sub GetWind As ResumableSub
Dim ReturnedWind As Wind
WindDialog.Title = "Enter the Wind"
' Clear out the previous values
WindSettings.Put("WindDirection","")
WindSettings.Put("WindSpeed","")
Wait For (WindDialog.ShowDialog(WindSettings, "OK", "CANCEL")) Complete (Result As Int)
If Result = xui.DialogResponse_Positive Then
ReturnedWind.Direction = WindSettings.Get("WindDirection")
ReturnedWind.Speed = WindSettings.Get("WindSpeed")
Return ReturnedWind
Else
Return Null
End If
End SubLooking at the Preferences Dialog Demo, I can't see anything special about using a number with a range in terms of the code calling the Dialog - both use a map to return the values.
Am I missing something here?
Thanks for any help.
JMB