[UX] Improve accessibility

[michaelstingl]

I played a bit with VoiceOver:

I think we can improve in different places. Apple provides great resources for this topic:

• https://developer.apple.com/accessibility/ios/
• https://developer.apple.com/documentation/uikit/accessibility/
• https://developer.apple.com/videos/frameworks/accessibility/

@pablocarmu Would you like work on this a few days in the next milestone? (to achieve some quick wins)

Client

iOS version:
iOS 12.1.2 (16C101)

ownCloud app version:
ownCloud beta version 1.0 build 85 (5df9764)

Device model:
Model: iPhone XS Max

[felix-schwarz]

@pablocarmu @michaelstingl The relevant APIs here are accessibilityLabel and accessibilityHint, which can be used to add VoiceOver specific descriptions to any UI element:

• https://developer.apple.com/documentation/objectivec/nsobject/1615181-accessibilitylabel
• https://developer.apple.com/documentation/objectivec/nsobject/1615093-accessibilityhint

This f.ex. should be all it takes to fix the issue for the create folder button:

createFolderButton.accessibilityLabel = "Create folder"

The greater difficulty here is to follow the guidelines provided for those two APIs to provide the "right" string.

There also is Apple's Accessibility Inspector app, which can perform an automatic audit of the app's currently visible UI and identify and report common issues.

[pablocarmu]

I guess that we could localize this accessibility hint the same way that other strings using our .localize API.

We can start adding this accessibility hint to the current features. Should we create new .stringfilet to write down the hints and localize them?

[felix-schwarz]

@pablocarmu I think we can use the existing .strings files as there will be some overlap between UI and accessibility hint strings, which would then have to localize twice.

[michaelstingl]

In the iOS Files app for example, the "New folder" button says "New folder, button" with VoiceOver.