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Make helper and error text separate widgets, make error and counter live region - #21752
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…dle-fix * commit '3c22d7b025642abd865160970d39f8c5ba7d3162': clarify how to display an image with a specific density (flutter#21152) Roll engine 9e315e6..2e8e96f (2 commits) (flutter#22005) Make helper and error text separate widgets, make error and counter live region (flutter#21752) Use Xcode legacy build system for iOS builds (flutter#21901) (flutter#21994) Run logcat through shell (flutter#21977) Add back screenshot extension that was temporarily disabled. (flutter#21828)
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Separates the error/helper text and counter from the text field.
When the text field has focus, the counter acts as a live region and updates the remaining characters after typing:
When an error appears below a text field, this error will be read out once instead of using AccessibilityNodeInfo.setContentInvalid - this will read out "content invalid" after every character press instead of just once.
The error will potentially need to be made an assertive live region, pending specs