Android Question [SOLVED] - Some views are not working with the screen reader turned on

[rleiman]

Greetings everyone,

I noticed that the following views do not recognise screen taps and dragging to scroll when the accessibility screen reader is turned on. I testing it with a Galaxy S9 running Android version 10.

B4XSeekBar
CustomListView

These work ok only if the screen reader is turned off.

Thanks.

 

[Erel]

I guess that the reader intercepts the touch event on the items and thus scrolling doesn't work.
Note that CustomListView is a regular ScrollView.

 

[rleiman]

Is it possible to add the touch event and drag event to B4XSeekBar and CustomListView? I love those views and my customers who are blind would love that as well.

I noticed that the volume sliders in "Sounds and vibration" work with the screen reader turned on. Can the B4XSeekBar and CustomListView be made to work the same way?

Thanks.

 

[Erel]

Start with a regular ScrollView. Are you able to scroll it?

 

[rleiman]

Start with a regular ScrollView. Are you able to scroll it?

Initially I was not able to scroll it but I found out by accident that you can scroll it if you use 2 fingers. Looks like my ignorance of how the screen reader works.

About the B4XSeekBar. I was also able to move the slider by using 2 finger dragging but tapping on that view was not recognised. Normally when a view is not recognised like that, I use this subroutine.

Public Sub SetContentDesc(v As View, desc As String)
    Dim r As Reflector
 
    r.Target = v
 
    r.RunMethod2("setContentDescription", desc, "java.lang.CharSequence")
End Sub

For most views this works but not for the B4XSeekBar. Instead I get a warning about types.

When I try to compile the app I get this error.


What do I need to change so the types will match?

Thanks.

 

[Erel]

Try to set it to B4XSeekBar.mBase.

 

[rleiman]

Try to set it to B4XSeekBar.mBase.

Works like a dream.

Thanks so much!