Android 知识点总结 （二十一） Android ListView
16lz
2021-01-23
相关文章：
Android 知识点总结（目录） https://blog.csdn.net/a136447572/article/details/81027701
1 定义Xml
2 查找id
private ListView listView ; listView = (ListView) findViewById(R.id.listView); list.setAdapter(adapter);3 Adapter (convertView复用)
class SaleReportAdapter extends BaseAdapter{ private ArrayList list ; public SaleReportAdapter(ArrayList list) { this.list = list; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int i) { return list.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int position, View convertView, ViewGroup viewGroup) { ViewHolder holder ; if (convertView==null){ holder = new ViewHolder(); convertView = LayoutInflater.from(SaleReportActivity.this).inflate(R.layout.salereport_item_layout,null); holder.text1 = (TextView) convertView.findViewById(R.id.text1); convertView.setTag(holder); }else{ holder = (ViewHolder) convertView.getTag(); } SaleReportBeans.RecordListBean beans = list.get(position); holder.text1.setText(beans.getStartDate()+"--"+beans.getEndDate()+"|||||"+beans.getCtg().getSale()+"--------"+beans.getPil().getSale()); return convertView; } class ViewHolder{ TextView text1 ; } } 4 listView 的属性
// 修改listView的分割线1 android:divider="@android:color/darker_gray"2 android:dividerHeight="10dp"或3 android:divider="@null"//ListView的滚动条 android:scrollbars="none"//通过listSelector属性设置Cell选中后的颜色：android:listSelector="#000000"//使用系统自带的透明色来实现：android:listSelector="@android:color/transparent"listview的滚动监听
pullList.setOnScrollListener(new AbsListView.OnScrollListener() { @Override public void onScrollStateChanged(AbsListView view, int scrollState) { } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { if (firstVisibleItem == 0) { //到顶部了 mSwipeLayout.setEnabled(true); } else if (visibleItemCount + firstVisibleItem == totalItemCount) { //到底部了 mSwipeLayout.setEnabled(false); } else { //在中间 mSwipeLayout.setEnabled(false); } } });更多相关文章
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