Android Question Creating witget

AddManifestText(
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="14"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.
Dim rv As RemoteViews
 

    Dim vari As Int
 
End Sub
Sub Service_Create

rv = ConfigureHomeWidget("wid2", "rv", 0, "Widget Name")
End Sub

Sub Service_Start (StartingIntent As Intent)

If rv.HandleWidgetEvents(StartingIntent) Then Return
End Sub

Sub Service_Destroy

End Sub
Sub rv_RequestUpdate
    rv.UpdateWidget
End Sub

Sub rv_Disabled
    StopService("")
End Sub
Sub btn_tip_click
ToastMessageShow("test",True)

rv.UpdateWidget

End Sub
Sub btn_buc_click
vari=vari+10
rv.SetText("lbl_buc",vari)
rv.UpdateWidget

End Sub

rv.SetImage("btn_tip",LoadBitmapSample(File.DirAssets,"100.png",90dip,50dip))

Sub btn_tip_click
ToastMessageShow("test",True)
rv.SetImage("btn_tip",LoadBitmapSample(File.DirAssets,"100.png",90dip,50dip))
rv.UpdateWidget

End Sub