android - 如何更改 BottomSheetDialog 的关闭行为的敏感度

Question

我有一个BottomSheetDialogFragment。但即使是最轻微的向下滑动也会关闭对话框。 我不想使其静态并删除向下滑动以消除行为。我希望能够更改灵敏度，如果向下滑动 x 像素，则关闭

Answer 1

使用BottomSheetBehavior

这将获取您的 BottomSheetDialogFragment View 的行为

var mBehavior: BottomSheetBehavior<*> = BottomSheetBehavior.from([your view reference])

然后你可以这样设置

val dismissOffset: Float = [-1..0] // 0 is the starting position. -1 is hidden. -0.5 is middle

var offset: Float? = null

mBehavior.setBottomSheetCallback(object : BottomSheetCallback() {
            override fun onStateChanged(bottomSheet: View, newState: Int) {
                if (newState == BottomSheetBehavior.STATE_SETTLING) {
                    if (offset!! > dismissOffset) {
                        mBehavior.setState(BottomSheetBehavior.STATE_EXPANDED)
                    } else {
                        mBehavior.setState(BottomSheetBehavior.STATE_HIDDEN)
                    }
                }
            }

            override fun onSlide(bottomSheet: View, slideOffset: Float) {
                offset = slideOffset
            }
        })