Android Question imageview

#Region  Project Attributes
    #ApplicationLabel: B4A Example
    #VersionCode: 1
    #VersionName:
    'SupportedOrientations possible values: unspecified, landscape or portrait.
    #SupportedOrientations: unspecified
    #CanInstallToExternalStorage: False
#End Region

#Region  Activity Attributes
    #FullScreen: False
    #IncludeTitle: True
#End Region

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.
    Private xui As XUI
    Private imgSq As Boolean
    Private t As Timer
End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    Private imv As ImageView
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Layout")
    imv.Initialize("imv")
    Activity.AddView(imv,50%x,50%y,50%x,50%y)
    t.Initialize("Timer1", 60000)
    t.Enabled = True
    imgSq=True
End Sub
Sub Timer1_Tick
    'Handle tick events
    If imgSq Then
        imv.Bitmap = LoadBitmap(File.DirAssets, "rgtarrow.png")
    Else
        imv.Bitmap = LoadBitmap(File.DirAssets, "lftarrow.png")
    End If
    imgSq=Not(imgSq)
    
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub