android qq开合表
qq悬浮列表功能暂未实现
main。xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Activity.Demo9Activity">
<ExpandableListView
android:id="@+id/demo9_expendablelistview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
adapter
public class Demo9Adapter extends BaseExpandableListAdapter {
private List<String> groupList;//外层的数据源
private List<List<String>> childList;//里层的数据源
private Context context;
public Demo9Adapter(Context context, List<String> groupList,List<List<String>> childList ){
this.context = context;
this.groupList = groupList;
this.childList = childList;
}
@Override
public int getGroupCount() {
return groupList.size();
}
/**
* 这个返回的一定要是对应外层的item里面的List集合的size
* @param groupPosition
* @return
*/
@Override
public int getChildrenCount(int groupPosition) {
return childList.get(groupPosition).size();
}
@Override
public Object getGroup(int groupPosition) {
return groupPosition;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return childList.get(groupPosition).get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
convertView = View.inflate(context, R.layout.item_demo9_style1, null);
//分组名字
TextView textView = (TextView) convertView.findViewById(R.id.group_name);
//子元素的个数
TextView number = (TextView) convertView.findViewById(R.id.count);
number.setText(childList.get(groupPosition).size()+"个");
textView.setText(groupList.get(groupPosition));
return convertView;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View view, ViewGroup viewGroup) {
view = View.inflate(context, R.layout.item_demo9_style2, null);
TextView textView = (TextView) view.findViewById(R.id.child_name);
//外层的分组名字
textView.setText(childList.get(groupPosition).get(childPosition));
return view;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
main
private ExpandableListView expandableListView;
private Demo9Adapter myAdapter;
private List<String> groupList;
private List<List<String>> childList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo9);
initView();
}
// 分组悬浮
private void initView() {
expandableListView = (ExpandableListView) findViewById(R.id.demo9_expendablelistview);
groupList = new ArrayList<>();
childList = new ArrayList<>();
addData("幼稚园同学",new String[]{"周杰伦","江一燕 ","佟丽娅","高圆圆","刘诗诗","刘亦菲","angleBaby","张静初","张含韵",});
addData("小学同学",new String[]{"光头强","熊大","熊二","妙蛙种子","比卡丘","双蛋瓦斯","贪吃蛇"});
addData("初中同学",new String[]{"吉泽明步","波多野结衣","爱川美里菜","小川阿佐美","桃谷绘里香","泷泽萝拉","北原多香子","石川施恩惠","北条麻妃","麻仓优","羽田爱","保坂绘里"});
addData("高中同学",new String[]{"秦始皇","李世民","武则天","曹操","刘备","孙权"});
addData("大学同学",new String[]{"周杰伦","江一燕 ","佟丽娅","高圆圆","刘诗诗","刘亦菲","angleBaby","张静初","张含韵",});
addData("研究生同学",new String[]{"光头强","熊大","熊二","妙蛙种子","比卡丘","双蛋瓦斯","贪吃蛇"});
addData("博士同学",new String[]{"小川阿佐美","桃谷绘里香","泷泽萝拉","北原多香子","石川施恩惠","北条麻妃","麻仓优","羽田爱","保坂绘里"});
addData("教授同事",new String[]{"秦始皇","李世民","武则天","曹操","刘备","孙权"});
addData("众仙家名册",new String[]{"苍井空","小泽玛利亚","吉泽明步","波多野结衣","爱川美里菜","小川阿佐美","桃谷绘里香","泷泽萝拉","北原多香子","石川施恩惠","北条麻妃","麻仓优","羽田爱","保坂绘里","秦始皇","李世民","武则天","曹操","刘备","孙权"});
myAdapter = new Demo9Adapter(this,groupList,childList);
expandableListView.setAdapter(myAdapter);
// 首次加载全部展开
for (int i = 0; i < groupList.size(); i++) {
if(i==0){
expandableListView.collapseGroup(i);
}else {
expandableListView.expandGroup(i);
}
}
// 2、不能点击收缩：
expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// TODO Auto-generated method stub
return false;
}
});
//长按事件
expandableListView.setOnCreateContextMenuListener(new View.OnCreateContextMenuListener() {
@Override
public void onCreateContextMenu(ContextMenu menu, View v,
ContextMenu.ContextMenuInfo menuInfo) {
// TODO Auto-generated method stub
menu.setHeaderTitle("选择操作");
// DOWNLOAD_RETRY DOWNLOAD_DEL DOWNLOAD_START
menu.add(0,0 , 0, "重试");
menu.add(0, 1, 0, "删除");
menu.add(0, 2, 0, "启动");
}
});
}
/**
* 用来添加数据的方法
*/
private void addData(String group, String[] friend) {
groupList.add(group);
//每一个item打开又是一个不同的list集合
List<String> childitem = new ArrayList<>();
for (int i = 0; i < friend.length; i++) {
childitem.add(friend[i]);
}
childList.add(childitem);
}
/**
* 长按菜单响应函数
*/
@Override
public boolean onContextItemSelected(MenuItem item) {
// TODO Auto-generated method stub
//关键<span class="wp_keywordlink" style="margin: 0px; padding: 0px; border: 0px; background: transparent;"><a target=_blank href="http://www.xuebuyuan.com/" title="代码" target="_blank" style="text-decoration: none; color: rgb(1, 150, 227);">代码</a></span>
ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) item.getMenuInfo();
int type = ExpandableListView.getPackedPositionType(info.packedPosition);
if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) {//上面的type设定这里类型的判定！这里是child判定！
int groupPos = ExpandableListView.getPackedPositionGroup(info.packedPosition); //在child判定里面，获取该child所属group！
int childPos = ExpandableListView.getPackedPositionChild(info.packedPosition); //在child判定里面，获取该child所属position！
switch (item.getItemId()) {
case 0:
Toast.makeText(this,"我是重试",Toast.LENGTH_SHORT).show();
// makeTextShort("我是重试");
break;
case 1:
Toast.makeText(this,"我是删除",Toast.LENGTH_SHORT).show();
break;
case 2:
Toast.makeText(this,"我是启动",Toast.LENGTH_SHORT).show();
default:
break;
}
return true;
}
return false;
}
数据参考:http://blog.csdn.net/dl10210950/article/details/52525492
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