如何在Chip Material组件中显示进度drawable动画？

据官方称Action Chips 的设计文档 https://material.io/design/components/chips.html#action-chips，我们应该能够为芯片添加进度状态。可悲的是，开发文档 https://material.io/develop/android/components/chip/根本不提这个。有谁设法弄清楚如何实现所示的效果here https://storage.googleapis.com/spec-host-backup/mio-design%2Fassets%2F1OpzE0nXqZJBm66WRVbaGvTbZEIaRAWfD%2Faction-chip-behavior-confirmation.mp4?

可以使用以下方法来实现此行为chipIcon属性和androidx.swiperefreshlayout.widget.CircularProgressDrawable.

xml

app:chipIconWithProgress="@{viewModel.taskIsStarting ? null : @drawable/ic_play_arrow}"

和绑定适配器

@BindingAdapter("chipIconWithProgress")

fun Chip.setChipIconWithProgress(item: Drawable?) {   
  chipIcon = item
    ?: CircularProgressDrawable(context!!).apply {
      setStyle(CircularProgressDrawable.DEFAULT)
      start()
    }
}