如何在Anko DSL布局中为FAB设置底部边距？

Question

我在我的kotlin活动中使用Anko DSL布局。我无法为FAB设置下限。正确的保证金工作

在我的活动中

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    (application as SamfantozziApp).dgaeacomponent().inject(this)

    InvoiceListKtActivityUI(_rxBus).setContentView(this)

}

我的Anko DSL布局InvoiceListKtActivityUI.kt

class InvoiceListKtActivityUI (val _rxBus: RxBus): AnkoComponent<InvoiceListKtActivity>{

override fun createView(ui: AnkoContext<InvoiceListKtActivity>): View = with(ui){

    return relativeLayout{
        padding = dip(5)
        lparams {
            width = matchParent
            height = wrapContent
            margin = 5
        }

        verticalLayout{

            tabLayout{
                lparams {
                width = matchParent
                height = wrapContent
                }
                id = R.id.tabs

            }

            viewPager{
                lparams {
                width = matchParent
                height = matchParent
                }
                id = R.id.container

            }

        }

        floatingActionButton{
            lparams {
                width = wrapContent
                height = wrapContent
                rightMargin = 40   //works
                bottomMargin = 40  //does not work
                alignParentBottom()
                alignParentRight()
            }
            imageResource = android.R.drawable.ic_input_add
            id = R.id.fabinvoice
            onClick{
                _rxBus.send(InvoiceListFragment.ClickFobEvent())
            }

        }

    }

  }

}

Answer 1

我认为您没有正确设置lparams。正确的形式是：

floatingActionButton {
    imageResource = android.R.drawable.ic_input_add
}.lparams{
    rightMargin = dip(16)
    bottomMargin = dip(16)
    alignParentBottom()
    alignParentRight()
}