```
#Region Project Attributes
#FullScreen: True
#IncludeTitle: False
#ApplicationLabel: B4A Example
#VersionCode: 1
#VersionName: 1.00
#SupportedOrientations: Portrait
#VersionName: 1.0
#End Region
#Region Activity Attributes
#FullScreen: True
#IncludeTitle: False
#End Region
Sub Process_Globals
'These global variables will be declared once when the application starts.
'These variables can be accessed from all modules.
Dim Constants(20,3) As String
End Sub
Sub Globals
'These global variables will be redeclared each time the activity is created.
'These variables can only be accessed from this module.
Dim ConstantsView As ListView
Dim lblTitle, ConstantsLabel As Label
End Sub
Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
'Activity.LoadLayout("Layout1")
Activity.LoadLayout("Portrait")
ConstantsView.Initialize("ConstantsView")
If FirstTime Then
add_menu
End If
End Sub
Sub Activity_Resume
End Sub
Sub Activity_Pause (UserClosed As Boolean)
End Sub
Sub add_menu
'Fill Constants Array.
Dim InputString
'Name
For Name = 0 To 19
Select Name
Case 0
InputString = "Acceleration by Gravity"
Case 1
InputString = "Atomic Mass Unit"
Case 2
InputString = "Avogadro's Number"
Case 3
InputString = "Bohr radius"
Case 4
InputString = "Boltzmann constant"
Case 5
InputString = "Electron charge/mass ratio"
Case 6
InputString = "Electron classical radius"
Case 7
InputString = "Electron mass energy"
Case 8
InputString = "Electron rest mass"
Case 9
InputString = "Faraday constant"
Case 10
InputString = "Fine-Structure constant"
Case 11
InputString = "Gas constant"
Case 12
InputString = "Gravitational constant"
Case 13
InputString = "Neutron mass energy"
Case 14
InputString = "Neutron rest mass"
Case 15
InputString = "Planck constant"
Case 16
InputString = "Proton mass energy"
Case 17
InputString = "Proton rest mass"
Case 18
InputString = "Rydberg constant"
Case 19
InputString = "Speed of light"
End Select
Constants(Name,0) = InputString
Next
'Value
For Value = 0 To 19
Select Value
Case 0
InputString = "9.8"
Case 1
InputString = "1.66E-27"
Case 2
InputString = "6.022E23"
Case 3
InputString = "0.529E-10"
Case 4
InputString = "1.38E-23"
Case 5
InputString = "-1.7588E11"
Case 6
InputString = "2.818E-15"
Case 7
InputString = "8.187E-14"
Case 8
InputString = "9.109E-31"
Case 9
InputString = "9.649E4"
Case 10
InputString = "7.297E-3"
Case 11
InputString = "8.314"
Case 12
InputString = "6.67E-11"
Case 13
InputString = "1.505E-10"
Case 14
InputString = "1.675-27"
Case 15
InputString = "6.626E-34"
Case 16
InputString = "1.503E-10"
Case 17
InputString = "1.6726E-27"
Case 18
InputString = "1.0974E7"
Case 19
InputString = "2.9979E8"
End Select
Constants(Value,1) = InputString
Next
'Units
For Units = 0 To 19
Select Units
Case 0
InputString = "m s^-2"
Case 1
InputString = "kg"
Case 2
InputString = "mol^-1"
Case 3
InputString = "m"
Case 4
InputString = "J K^-1"
Case 5
InputString = "C kg^-1"
Case 6
InputString = "m"
Case 7
InputString = "J"
Case 8
InputString = "kg"
Case 9
InputString = " C mol^-1"
Case 10
InputString = ""
Case 11
InputString = "J mol^-1 K^-1"
Case 12
InputString = "Nm^2kg^-2"
Case 13
InputString = "J"
Case 14
InputString = "kg"
Case 15
InputString = "J s"
Case 16
InputString = "J"
Case 17
InputString = "kg"
Case 18
InputString = "m^-1"
Case 19
InputString = "m/s"
End Select
Constants(Units,2) = InputString
Next
End Sub
Sub ConstantsRecall
Dim temp As String
'Set the parameters for displaying the Items of the ListView
ConstantsLabel = ConstantsView.SingleLineLayout.Label '
ConstantsLabel.TextColor = Colors.White '
ConstantsLabel.TextSize = 14
ConstantsLabel.Color = Colors.DarkGray '
ConstantsLabel.Height = 7%y 'Label height and Item Height should match to avoid gsps & overlaps
ConstantsView.SingleLineLayout.ItemHeight = ConstantsView.SingleLineLayout.Label.Height
ConstantsView.Color = Colors.DarkGray
ConstantsView.Clear 'Clear Listview before populating or else you get duplicates
For Const = 0 To 19 'Builds the viewable list ConstantsView
temp = Constants(Const,0) 'Get the value from the List
temp = temp & " " & Constants(Const,1)
temp = temp & Constants(Const,2)
ConstantsView.AddSingleLine(temp) 'Store the string in the ListView
Next
Activity.AddView(ConstantsView, 0, 10%y, 100%x, 100%y) 'Displays the list built by the previous loop.
lblTitle.Text = "Constants" 'Label sits above ConstantsView
lblTitle.BringToFront
lblTitle.Height = 10%y
lblTitle.width = 100%x
lblTitle.Top = 0%y
End Sub
Sub ConstantsView_ItemClick (Position As Int, ResultsValue As Object)
Dim temp As String
Log Constants(Position,1) 'Capture the value .
ConstantsView.RemoveView 'Exit ListView.
lblTitle.SendToBack
End Sub
```