Android Question Strange Button Behavior

jmoeller · Jan 2, 2017

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...

B4X:

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 · Jan 2, 2017

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 · Jan 3, 2017

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

B4X:

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

Android Question Strange Button Behavior

jmoeller

Member

Cableguy

Expert

Erel

B4X founder

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Android Question Strange Button Behavior

jmoeller

Member

Cableguy

Expert

Erel

B4X founder

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