ExpandableListView가 하단에있는 경우 스크롤하지 않음

Question

Activity 인 ExpanableListView 인 Android 앱이 있습니다.

내가 원하는 것은 ExpandableListView이 선택한 그룹 머리글을 스크롤 할 때 해당 탭의 머리글을 스크롤하는 것이고, (수직 공간이 충분하지 않기 때문에) 스크롤 할 수없는 경우 맨 아래로 스크롤하려고합니다.

목록보기의 하단에 다른 공간 (예 : 다른 그룹)이있을 때 탭하면 모든 항목이 정상적으로 작동하고 목록보기가 스크롤되어 하위 항목이 표시됩니다. (편집 : 아니요, 첫 번째 탭에서만 올바르게 작동하고 이후의 모든 시도는 스크롤되지 않습니다.)

그러나 목록보기에 공백이 없으면 스크롤이 발생하지 않고 그룹이 확장되고 그런 다음 아래로 스크롤하여 그룹 어린이를 볼 수 있습니다.

'onGroupClick'을 무시하고 'smoothScrollToPosition'을 호출하는 등 여러 가지 시도를했지만 결과는 거의 동일합니다.

도움이 될 것입니다.

Answer 1

아래와 비슷한 방법을 시도해 볼 수 있습니다. 완벽하게 작동합니다 : 우리가 확인하고 추가 지원을 제공 할 수 있도록

public static class LineupFragment extends Fragment { 

View rootView; 
ExpandableListView lv; 
private String[] groups; 
private String[][] children; 


public LineupFragment() { 

} 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    groups = new String[] { "Test Header 1", "Test Header 2", "Test Header 3", "Test Header 4" }; 

    children = new String [][] { 
     { "s simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum." }, 
     { "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of comes from a line in section 1.10.32." }, 
     { "It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like)." }, 
     { "There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don't look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn't anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc." } 
    }; 
} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    rootView = inflater.inflate(R.layout.fragment_lineup, container, false); 

return rootView; 
} 

@Override 
public void onViewCreated(View view, Bundle savedInstanceState) { 
    super.onViewCreated(view, savedInstanceState); 

    lv = (ExpandableListView) view.findViewById(R.id.expListView); 
    lv.setAdapter(new ExpandableListAdapter(groups, children)); 
    lv.setGroupIndicator(null); 

} 

public class ExpandableListAdapter extends BaseExpandableListAdapter { 

    private final LayoutInflater inf; 
    private String[] groups; 
    private String[][] children; 

    public ExpandableListAdapter(String[] groups, String[][] children) { 
     this.groups = groups; 
     this.children = children; 
     inf = LayoutInflater.from(getActivity()); 
    } 

    @Override 
    public int getGroupCount() { 
     return groups.length; 
    } 

    @Override 
    public int getChildrenCount(int groupPosition) { 
     return children[groupPosition].length; 
    } 

    @Override 
    public Object getGroup(int groupPosition) { 
     return groups[groupPosition]; 
    } 

    @Override 
    public Object getChild(int groupPosition, int childPosition) { 
     return children[groupPosition][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 getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { 

     ViewHolder holder; 
      if (convertView == null) { 
       convertView = inf.inflate(R.layout.list_item, parent, false); 
       holder = new ViewHolder(); 

       holder.text = (TextView) convertView.findViewById(R.id.lblListItem); 
       convertView.setTag(holder); 
      } else { 
       holder = (ViewHolder) convertView.getTag(); 
      } 

      holder.text.setText(getChild(groupPosition, childPosition).toString()); 

      return convertView; 
    } 

    @Override 
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { 
     ViewHolder holder; 

     if (convertView == null) { 
      convertView = inf.inflate(R.layout.list_group, parent, false); 

      holder = new ViewHolder(); 
      holder.text = (TextView) convertView.findViewById(R.id.lblListHeader); 
      convertView.setTag(holder); 
     } else { 
      holder = (ViewHolder) convertView.getTag(); 
     } 

     holder.text.setText(getGroup(groupPosition).toString()); 

     return convertView; 
    } 

    @Override 
    public boolean isChildSelectable(int groupPosition, int childPosition) { 
     return true; 
    } 

    private class ViewHolder { 
     TextView text; 
    } 
}