当我点击该组时，它会展开并显示childView，然后点击childView中的“删除”按钮，弹出一个AlertDialog，点击“确认”按钮后，当前项目将从列表中删除，但是我目前的代码无法达到这个效果。有人有什么想法吗？
public class ManageFragment extends FragmentBase{
private ExpandableListView mExpandableListView;
private ExpandListAdapter mAdapter;
private List<String> mGroups;
private HashMap<String, List<String>> mChilds;
private Button openBtn;
private TextView download_history;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_manage, container, false);
prepareData();
init(view);
return view;
}
private void init(View view) {
mAdapter = new ExpandListAdapter(getActivity(), mGroups, mChilds);
mExpandableListView = (ExpandableListView) view.findViewById(R.id.expand_listview);
download_history = (TextView) view.findViewById(R.id.download_history);
int number = mGroups.size();
download_history.setText(String.valueOf(number));
mExpandableListView.setAdapter(mAdapter);
mExpandableListView.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
for(int i = 0; i < mAdapter.getGroupCount(); i++){
if(groupPosition != i){
mExpandableListView.collapseGroup(i);
}
}
}
});
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
private void prepareData() {
mGroups = new ArrayList<String>();
mChilds = new HashMap<String, List<String>>();
mGroups.add("Group 1");
mGroups.add("Group 2");
mGroups.add("Group 2");
mGroups.add("Group 2");
mGroups.add("Group 2");
mGroups.add("Group 2");
mGroups.add("Group 2");
List<String> menu = new ArrayList<String>();
menu.add("menu 1");
mChilds.put(mGroups.get(0), menu);
mChilds.put(mGroups.get(1), menu);
}
}
public class ExpandListAdapter extends BaseExpandableListAdapter implements OnClickListener{
private Context mContext;
private List<String> mGroups;
private HashMap<String, List<String>> mChilds;
private boolean flag = true;
private TextView delete_local,delete_confirm,delete_cancel;
AlertDialog dialog;
public ExpandListAdapter(Context context, List<String> groups,
HashMap<String, List<String>> childs) {
mContext = context;
mGroups = groups;
mChilds = childs;
}
/**
* get size list group
*/
@Override
public int getGroupCount() {
return mGroups.size();
}
/**
* get size current list child
*/
@Override
public int getChildrenCount(int groupPosition) {
return mChilds.get(mGroups.get(groupPosition)).size();
}
/**
* get object group
*/
@Override
public Object getGroup(int groupPosition) {
return mGroups.get(groupPosition);
}
/**
* get object child
*/
@Override
public Object getChild(int groupPosition, int childPosition) {
return mChilds.get(mGroups.get(groupPosition)).get(childPosition);
}
/**
* get current group id
*/
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
/**
* get current child id
*/
@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) {
//String groupText = (String) getGroup(groupPosition);
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.group_layout, null);
holder.expand_imgView = (ImageView) convertView.findViewById(R.id.expand_list_image);
holder.rank_download = (Button) convertView.findViewById(R.id.rank_download);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
holder.rank_download.setOnClickListener(this);
if(isExpanded){
holder.expand_imgView.setBackgroundResource(R.drawable.manage_collapse);
}else{
holder.expand_imgView.setBackgroundResource(R.drawable.manage_expand);
}
return convertView;
}
class ViewHolder{
ImageView expand_imgView;
Button manage_share,manage_redownload,manage_delete,rank_download;
}
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
//String childText = (String) getChild(groupPosition, childPosition);
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.child_layout, null);
holder.manage_share = (Button) convertView.findViewById(R.id.manage_share);
holder.manage_redownload = (Button) convertView.findViewById(R.id.manage_redownload);
holder.manage_delete = (Button) convertView.findViewById(R.id.manage_clean);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
holder.manage_share.setOnClickListener(this);
holder.manage_redownload.setOnClickListener(this);
holder.manage_delete.setOnClickListener(this);
holder.manage_delete.setTag(groupPosition);
return convertView;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
@Override
public void onClick(View v) {
int id = v.getId();
switch (id) {
case R.id.manage_share:
Toast.makeText(mContext, "share", 3).show();
break;
case R.id.manage_redownload:
Toast.makeText(mContext, "redownload", 3).show();
break;
case R.id.manage_clean:
showDeleteDialog();
break;
case R.id.rank_download:
Toast.makeText(mContext, "open", 3).show();
break;
case R.id.delete_local:
if (flag == false) {
delete_local.setCompoundDrawablesWithIntrinsicBounds(
R.drawable.checkbox_pressed, 0, 0, 0);
flag = true;
}else if(flag==true){
delete_local.setCompoundDrawablesWithIntrinsicBounds(R.drawable.checkbox,0,0, 0);
flag=false;
}
break;
case R.id.delete_confirm:
Object tag = v.getTag();
System.out.println("tag------------>" + tag);
if(null != tag){
mGroups.remove((Integer)tag);
mChilds.remove((Integer)tag);
dialog.dismiss();
this.notifyDataSetChanged();
}else{
dialog.dismiss();
}
break;
case R.id.delete_cancel:
dialog.dismiss();
break;
default:
break;
}
}
private void showDeleteDialog() {
dialog = new AlertDialog.Builder(mContext).create();
View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_delete, null);
delete_local = (TextView) view.findViewById(R.id.delete_local);
delete_confirm = (TextView) view.findViewById(R.id.delete_confirm);
delete_cancel = (TextView) view.findViewById(R.id.delete_cancel);
delete_local.setOnClickListener(this);
delete_confirm.setOnClickListener(this);
delete_cancel.setOnClickListener(this);
view.setMinimumWidth((int) (((Activity) mContext).getWindowManager()
.getDefaultDisplay().getWidth() * 0.8));
dialog.setView(view);
dialog.setInverseBackgroundForced(true);
dialog.show();
}
}
答案 0 :(得分：0)
我认为你的问题在这里
case R.id.manage_clean:
int pos = (int)v.getTag();
showDeleteDialog(pos);
break;
您没有在此代码中的任何位置为delete_confirm设置标记。您将其设置为manage_delete。所以我会将这个位置传递给你的showDeleteDialog方法，如此
private void showDeleteDialog(int pos) {
dialog = new AlertDialog.Builder(mContext).create();
View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_delete, null);
delete_local = (TextView) view.findViewById(R.id.delete_local);
delete_confirm = (TextView) view.findViewById(R.id.delete_confirm);
delete_cancel = (TextView) view.findViewById(R.id.delete_cancel);
delete_local.setOnClickListener(this);
delete_confirm.setOnClickListener(this);
delete_cancel.setOnClickListener(this);
delete_confirm.setTag(pos);
view.setMinimumWidth((int) (((Activity) mContext).getWindowManager()
.getDefaultDisplay().getWidth() * 0.8));
dialog.setView(view);
dialog.setInverseBackgroundForced(true);
dialog.show();
}
然后在showDeleteDialog方法中将pos设置为delete_confirm的标记
ticketTable