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material-components_materia.../components/ProgressView/docs/accessibility.md
Andrew Overton e4f8a63b9e
[ProgressView] Add accessibility docs for MDCProgressView (#4543) 
* Add accessibility docs for MDCProgressView

* tweak wording
2018-07-13 15:09:38 -04:00

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MDCProgressView

-accessibilityValue

Like UIProgressView, MDCProgressView's accessibilityValue is based on the current value of the ProgressView's progress property. Also like UIProgressView, this accessibilityValue takes the form of a whole number percentage. To ensure the same behavior between the two classes, the MDCProgressView class has a static UIProgressView that instances query for its accessibilityValue whenever they need to provide their own.

The ProgressView announces a new accessibilityValue whenever its progress changes if VoiceOver is on.