Android Question Strange Button Behavior

[jmoeller]

I am developing an app for low literacy users. I have three buttons on the screen which I want read to the user. I want to show which button corresponds to the instructions, so I want to turn the button red while the corresponding audio plays.
Here is my code...

AgreeButton.Color = Colors.Red
'Msgbox("turn it red", "Notification")   
sp.Load(File.DirAssets,"agree.mp3")
sp.Play
AgreeButton.Color = Colors.Gray

As listed, the code doesn't change the color of the button. However, if I uncomment the "Msgbox" line, it changes the button color to red.

Any idea what is happening here?

 

[Cableguy]

the notification is giving the underlying SO the time needed for the change to be noticeable!
you are change the color of the button in a rapid sequence, which, without the message notification its takes the last color change almost immediatly

 

[Erel]

Use CallSubPlus to set the color back to gray after 500ms.

AgreeButton.Color = Colors.Red
sp.Load(...)
sp.Play
csu.CallSubPlus2(Me, "Reset_Color", 500, Array (AgreeButton))
End Sub

Sub Reset_Color (Args() As Object)
 Dim b As Button = Args(0)
 b.Color = Colors.Gray
End Sub