Android Example Simple previous-next example

Simple previous-next example

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

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.

    Private ImageView1 As ImageView
    Private Index1 = 1 As Int   
    Private Button1 As Button
    Private Button2 As Button
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("main")
    
    ImageView1.Bitmap = LoadBitmap(File.DirAssets, Index1 & ".jpg")
    

End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub


Sub Button1_Click
    Index1 = Max(1, Index1 - 1)
    If Index1 < 1 Then
        Index1 = 4
    End If
    ImageView1.Bitmap = LoadBitmap(File.DirAssets, Index1 & ".jpg")
End Sub

Sub Button2_Click
    Index1 = Index1 + 1
    If Index1 > 4 Then
        Index1 = 4
    End If
    ImageView1.Bitmap = LoadBitmap(File.DirAssets, Index1 & ".jpg")
End Sub