StickyListHeaders：在listview中可以轻松的把headers添加到列表视图中组件
本资源由 伯乐在线 - sunbiaobiao 整理
StickyListHeaders 是一个在listview中可以轻松的把headers添加到列表视图中，类似于Android4.0 的手机通讯录的效果。很多IOS 也用这种效果，这个框架也可以用在不动的列表之中.
安装
Maven
|
1 2 3 4 5 |
<dependency> <groupId>se.emilsjolander</groupId> <artifactId>stickylistheaders</artifactId> <version>x.x.x</version> </dependency> |
gradle
|
1 2 3 |
dependencies { compile 'se.emilsjolander:stickylistheaders:x.x.x' } |
例子
让我们以一个活动或者片段开始，它看起来像这样
|
1 2 3 4 |
<se.emilsjolander.stickylistheaders.StickyListHeadersListView android:id="@+id/list" android:layout_width="match_parent" android:layout_height="match_parent"/> |
现在在活动的Oncreate或者片段的Oncreateview 中你要加上以下代码
|
1 2 3 |
StickyListHeadersListView stickyList = (StickyListHeadersListView) findViewById(R.id.list); MyAdapter adapter = new MyAdapter(this); stickyList.setAdapter(adapter); |
如果你的list是一个国家列表，每个header是字母表中的一个字母
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 |
public class MyAdapter extends BaseAdapter implements StickyListHeadersAdapter { private String[] countries; private LayoutInflater inflater; public TestBaseAdapter(Context context) { inflater = LayoutInflater.from(context); countries = context.getResources().getStringArray(R.array.countries); } @Override public int getCount() { return countries.length; } @Override public Object getItem(int position) { return countries[position]; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { holder = new ViewHolder(); convertView = inflater.inflate(R.layout.test_list_item_layout, parent, false); holder.text = (TextView) convertView.findViewById(R.id.text); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.text.setText(countries[position]); return convertView; } @Override public View getHeaderView(int position, View convertView, ViewGroup parent) { HeaderViewHolder holder; if (convertView == null) { holder = new HeaderViewHolder(); convertView = inflater.inflate(R.layout.header, parent, false); holder.text = (TextView) convertView.findViewById(R.id.text); convertView.setTag(holder); } else { holder = (HeaderViewHolder) convertView.getTag(); } //set header text as first char in name String headerText = "" + countries[position].subSequence(0, 1).charAt(0); holder.text.setText(headerText); return convertView; } @Override public long getHeaderId(int position) { //return the first character of the country as ID because this is what headers are based upon return countries[position].subSequence(0, 1).charAt(0); } class HeaderViewHolder { TextView text; } class ViewHolder { TextView text; } } |
资源整理者简介：sunbiaobiao
