HintExampleNumber usage

Hi @hbb20,

My application phone component ui like this

but currently like this in the app

Is there a way to show the hintExampleNumber as xxx xx xx?

Start by reproducing the reported Android phone component behavior and tracing how HintExampleNumber is rendered. Inspect the hint formatting and country-specific phone input handling, then verify that the hint can display the requested “xxx xx xx” grouping without changing entered values.

索引モデルが issue の本文から書いたものです。