小编mar*_*tom的帖子

如果我使用 Modal BottomSheetFragment 如何添加 BottomSheetBehavior ？

var bottomSheetBehaviorCallback = 
    object : BottomSheetBehavior.BottomSheetCallback() {

        override fun onSlide(bottomSheet: View, slideOffset: Float) {
            Log.d(Constants.LOG_INFO, "on slide")
        }

        override fun onStateChanged(bottomSheet: View, newState: Int) {
            Log.d(Constants.LOG_INFO, "onStateChanged")
        }
    }

val detailView = StationDetailFragment.newInstance(selectedStationID, "")
detailView.show(fragmentManager, "detailView")

此时视图尚未创建

我更改了代码并添加了覆盖 setupDialog 。但我仍然没有得到回调工作

override fun setupDialog(dialog: Dialog?, style: Int) {

    val contentView = View.inflate(context, R.layout.fragment_station_detail, null)
    dialog!!.setContentView(contentView)

    val layoutParams = (contentView.parent as View).layoutParams as CoordinatorLayout.LayoutParams

    val behavior = layoutParams.behavior

    if (behavior != null && behavior is BottomSheetBehavior<*>) …