1. ListView根据Adapter动态设置高度,使ListView高度正好显示出所有的Item,不用滚动条
public void setListViewHeightBasedOnChildren(ListView listView) { //获取listview的适配器 ListAdapter listAdapter = listView.getAdapter(); //item的高度 if (listAdapter == null) { return; } int totalHeight = 0; for (int i = 0; i < listAdapter.getCount(); i++) { View listItem = mAdapter.getView(i, null, listView); listItem.measure(0, 0); //计算子项View 的宽高 //统计所有子项的总高度 totalHeight += listItem.getMeasuredHeight()+listView.getDividerHeight(); } ViewGroup.LayoutParams params = listView.getLayoutParams(); params.height = totalHeight; listView.setLayoutParams(params); }