android ListView 巢狀scrollView 自適應高度
阿新 • • 發佈:2019-02-15
很多時候我們的需求要求我們在scrollView裡面巢狀ListView,但是直接巢狀的話,ListView只會顯示一個Item,這時候就需要ListView根據Item的數量來自適應高度了。
// 設定ListView高度 public static void setListViewHeightBasedOnChildren(ListView listView) { ListAdapter listAdapter = listView.getAdapter(); if (listAdapter == null) { return; } int totalHeight = 0; for (int i = 0; i < listAdapter.getCount(); i++) { View listItem = listAdapter.getView(i, null, listView); listItem.measure(0, 0); totalHeight += listItem.getMeasuredHeight(); } ViewGroup.LayoutParams params = listView.getLayoutParams(); params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1)); listView.setLayoutParams(params); }