1.满足条件
如果使用ExpandableListView，需要子item响应一个事件，比如重新启动一个新的activity，需要满足下面的条件：
(1).修改Adapter返回值
覆写BaseExpandableListAdapter的isChildSelectable()的返回值为true;
(2).绑定监听器
调用ExpandableListView对象的setOnChildClickListener()方法，为其绑定监听器
2.示意图
3.代码实现
public class MovieAdapter extends BaseExpandableListAdapter {
private List list;
private LayoutInflater inflater;
public MovieAdapter(Context context) {
inflater = LayoutInflater.from(context);
list = new ArrayList();
}
public void addList(List list) {
this.list.addAll(list);
}
public List getList() {
return list;
}
private class ViewHolder {
TextView tvDay;
TextView tvMonth;
View vLine;
ImageView ivPic;
TextView tvTitle;
TextView tvType;
TextView tvDirector;
/** 预告片 */
Button btForenotice;
/** 提醒 */
public ViewHolder(View view) {
tvDay = (TextView) view.findViewById(R.id.tv_incoming_day);
vLine = view.findViewById(R.id.left_green_line);
tvMonth = (TextView) view.findViewById(R.id.tv_month);
ivPic = (ImageView) view.findViewById(R.id.iv_incoming_movie);
tvTitle = (TextView) view.findViewById(R.id.tv_incoming_title);
tvType = (TextView) view.findViewById(R.id.tv_incoming_movieType);
tvDirector = (TextView) view.findViewById(R.id.tv_incoming_director);
btForenotice = (Button) view.findViewById(R.id.bt_incoming_forenotice);
}
}
private class ChildViewHolder {
ImageView ivPic;
TextView tvTitle;
public ChildViewHolder(View view) {
ivPic = (ImageView) view.findViewById(R.id.pic);
tvTitle = (TextView) view.findViewById(R.id.title);
}
}
@Override
public int getGroupCount() {
return list.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return list.get(groupPosition).videos.size();
}
@Override
public Object getGroup(int groupPosition) {
return list.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return list.get(groupPosition).videos.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 false;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView,
ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.item_incoming_movies, null);
ViewHolder holder = new ViewHolder(convertView);
convertView.setTag(holder);
}
ViewHolder holder = (ViewHolder) convertView.getTag();
IncomingBean bean = list.get(groupPosition);
if (bean.isDay) {
holder.tvDay.setText(bean.day);
holder.tvDay.setVisibility(View.VISIBLE);
} else {
holder.tvDay.setVisibility(View.GONE);
}
if (bean.isMonth) {
holder.tvMonth.setText(bean.month + 月);
holder.tvMonth.setVisibility(View.VISIBLE);
holder.vLine.setVisibility(View.VISIBLE);
} else {
holder.tvMonth.setVisibility(View.GONE);
holder.vLine.setVisibility(View.GONE);
}
holder.tvTitle.setText(bean.title);
StringBuilder sb = new StringBuilder();
if (bean.wantedCount > 0) {
sb.append(bean.wantedCount).append(人想看-);
}
sb.append(bean.type);
holder.tvType.setText(sb.toString());
holder.tvDirector.setText(导演: + bean.director);
holder.btForenotice.setEnabled(bean.isVideo);
holder.ivPic.setTag(bean.image);// 防止错位
MyVolley.getImageLoader().get(bean.image,
ImageLoader.getImageListener(holder.ivPic, R.drawable.defaultposter_local, 0));
return convertView;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild,
View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.item_movies_child, null);
ChildViewHolder holder = new ChildViewHolder(convertView);
convertView.setTag(holder);
}
ChildViewHolder holder = (ChildViewHolder) convertView.getTag();
VideoBean bean = list.get(groupPosition).videos.get(childPosition);
holder.tvTitle.setText(bean.title);
holder.ivPic.setTag(bean.image);// 防止错位
MyVolley.getImageLoader().get(bean.image,
ImageLoader.getImageListener(holder.ivPic, R.drawable.defaultposter_local, 0));
return convertView;
}
/**ExpandableListView 如果子条目需要响应click事件,必需返回true*/
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
listView.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
Intent intent = new Intent(getActivity(), PlayActivity.class);
intent.setData(Uri.parse(adapter.getList().get(groupPosition).videos.get(childPosition).url));
startActivity(intent);
return true;
}
});
