本文介绍了android的ListView点击item使item展开的做法的实现代码，分享给大家，具体如下：

效果图:

原理是点击item的时候,重新measure list的各个item的高度

list.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { MyData data = myList.get(position); if (oldPostion == position) { if (data.expand) { oldPostion = -1; } data.expand = !data.expand; }else{ oldPostion = position; data.expand = true; } int totalHeight = 0; for(int i=0;i<myAdapter.getCount();i++) { View viewItem = myAdapter.getView(i, null, list); viewItem.measure(0, 0); totalHeight += viewItem.getMeasuredHeight(); } ViewGroup.LayoutParams params = list.getLayoutParams(); params.height = totalHeight + (list.getDividerHeight() * (list.getCount() - 1)); list.setLayoutParams(params); myAdapter.notifyDataSetChanged(); }});

adapter:

private class myAdapter extends BaseAdapter{ @Override public int getCount() { return myList.size(); } @Override public Object getItem(int position) { return myList.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { MyTag tag = new MyTag(); MyData data = myList.get(position); if(convertView == null) { convertView = inflater.inflate(R.layout.expand_item_layout, null); tag.item1 = (TextView)convertView.findViewById(R.id.item1); tag.item2 = (RelativeLayout)convertView.findViewById(R.id.item2); convertView.setTag(tag); }else{ tag = (MyTag)convertView.getTag(); } if(data.expand) { tag.item2.setVisibility(View.VISIBLE); }else{ tag.item2.setVisibility(View.GONE); } tag.item1.setText(data.name); return convertView; } } private class MyTag{ private TextView item1; private RelativeLayout item2;} private class MyData{ boolean expand; String name;}

代码在https://github.com/nickgao1986/StepSport

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。