为什么ListView的高度不正确？

Question

这是我的函数计算器ListView的高度：

 fun setListViewHeightBasedOnChildren(listView: ListView) {
        val listAdapter = listView.getAdapter() ?: return

        val desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(), MeasureSpec.UNSPECIFIED)
        var totalHeight = 0
        var view: View? = null
        for (i in 0 until listAdapter.getCount()) {
            view = listAdapter.getView(i, view, listView)
            if (i == 0)
                view!!.layoutParams = ViewGroup.LayoutParams(desiredWidth, LinearLayout.LayoutParams.WRAP_CONTENT)

            view!!.measure(desiredWidth, MeasureSpec.UNSPECIFIED)
            totalHeight += view.measuredHeight 
        }
        val params = listView.getLayoutParams()
        params.height = totalHeight + listView.getDividerHeight()  * (listAdapter.getCount() - 1)
        listView.setLayoutParams(params)
    }

并致电显示所有项目：

 setListViewHeightBasedOnChildren(listView)

结果：最后一行没有显示ok：

为什么ListView的高度不正确？

Answer 1

检查以下答案：

NSMutableDictionary

可能是你忘记了总的顶部和底部填充，并将params设置为listview项目，如上面的代码。