[Data Sharing] Focus set on input control on view load

[svinkle]

Issue summary

On Share Code view load, focus is sent to the Code input control via autofocus prop. This interferes with the natural focus order of the view content. As a result, the virtual keyboard opens and focus is sent to the 1 key. This may cause confusion or frustration for voice dictation or screen reader users who need to navigate backward to gain context of the current view.

Screenshots

Steps to reproduce

1. Load the app in the iOS simulator.
2. Open the Sheet view.
3. Enable VoiceOver screen reader on macOS
4. Use the Virtual Cursor to navigate to and activate the "Share code" control (Ctrl + Opt + Space)

Behavior

Expected

• Focus to shift to the view header.

Actual

• Focus shifts to the input control.

Recommendation

Remove the autofocus attribute on the input control. Allow focus to shift to the header per #12.

Specifications

• Component: CovidShield [Data Sharing]
• Related: [Global] Missing header structure #7
• WCAG Principle: Operable
• WCAG SC: 2.4.3 Focus Order
• Severity: Medium
• Effort: Low