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Few questions related to mobile app accessibility

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From: Ajay Sharma
Date: Feb 18, 2018 2:59AM

Hi,

We have an app for both iOS and Android that works on VoIP much like Skype, where the buttons like mute, disconnect, start audio call start video call etc do not have any role associated. So on this we have different opinions, first, it is obvious from the label of the elements that would make the user understand that it is interactive and what would happen upon double tapping on that, this situation could commonly be seen in apps nowadays such as items under hamburger menus generally do not have any role another instance could be in mailing apps, the emails in the lists do not have any role.
The second opinion wants to have buttons as roles for those elements

Another situation is if it is good to make screen reader announce "expanded / collapsed" upon hamburger menus even if the focus is limited within the menu until it is closed?

Lastly, making screen reader announce "selected" on the tabs that appear on the app and take screen reader focus to the content of expanded tab would fall under compliance issue or under usability?

Looking forward for your thoughts on what should be the best behaviour in this situation.

Best Regards,
Ajay