可展开的列表视图错误膨胀类文本视图

Question

我在我的主要activity中使用材料设计tablayout，在那里我有scrollable选项卡，在我的第一个fragment我正在使用可扩展的listview。

这是我的片段代码

public class House_Hold_List_Fragment extends Fragment {
    ExpandableListAdapter listAdapter;
    ExpandableListView expListView;
    List<HouseHoldList_Model> listDataHeader;
    HashMap<HouseHoldList_Model, List<String>> listDataChild;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.house_hold_list_fragment, container, false);
        setHasOptionsMenu(true);
        expListView = (ExpandableListView) view.findViewById(R.id.lvExp);
        listDataHeader = new ArrayList<HouseHoldList_Model>();
        listDataChild = new HashMap<HouseHoldList_Model, List<String>>();
        loadModel();
        // preparing list data
        prepareListData();
        listAdapter = new ExpandableListAdapter(getActivity(), listDataHeader, listDataChild);
        // setting list adapter
        expListView.setAdapter(listAdapter);
        return view;
    }
    public void prepareListData(){
        List<String> top250 = new ArrayList<String>();
        top250.add("The Shawshank Redemption");
        top250.add("The Godfather");
        top250.add("The Godfather: Part II");
        top250.add("Pulp Fiction");
        top250.add("The Good, the Bad and the Ugly");
        top250.add("The Dark Knight");
        top250.add("12 Angry Men");
        List<String> nowShowing = new ArrayList<String>();
        nowShowing.add("The Conjuring");
        nowShowing.add("Despicable Me 2");
        nowShowing.add("Turbo");
        nowShowing.add("Grown Ups 2");
        nowShowing.add("Red 2");
        nowShowing.add("The Wolverine");
        List<String> comingSoon = new ArrayList<String>();
        comingSoon.add("2 Guns");
        comingSoon.add("The Smurfs 2");
        comingSoon.add("The Spectacular Now");
        comingSoon.add("The Canyons");
        comingSoon.add("Europa Report");
        listDataChild.put((HouseHoldList_Model)listDataHeader.get(0), top250); // Header, Child data
        listDataChild.put(listDataHeader.get(1), nowShowing);
        listDataChild.put(listDataHeader.get(2), comingSoon);
    }
    public void loadModel(){
        listDataHeader.add(new HouseHoldList_Model("A"));
        listDataHeader.add(new HouseHoldList_Model("B"));
        listDataHeader.add(new HouseHoldList_Model("C"));
    }
    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        // TODO Auto-generated method stub
        //super.onCreateOptionsMenu(menu, inflater);
        inflater.inflate(R.menu.menu, menu);
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case R.id.search:
                //do something
                Log.e("search clicked","sd");
                return true;
            case R.id.action_settings:
                //do something
                Log.e("search clicked","sd");
                return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

这是我的模型类代码，我只是在其中添加名称

public class HouseHoldList_Model {
    String name;
    public HouseHoldList_Model(){
    }
    public HouseHoldList_Model(String name){
        this.name=name;
    }
}

这是我的可扩展列表适配器类代码

public class ExpandableListAdapter extends BaseExpandableListAdapter {
    private Context _context;
    private List<HouseHoldList_Model> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<HouseHoldList_Model
            , List<String>> _listDataChild;
    public ExpandableListAdapter(Context context, List<HouseHoldList_Model> listDataHeader,
                                 HashMap<HouseHoldList_Model, List<String>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }
    @Override
    public Object getChild(int groupPosition, int childPosititon) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosititon);
    }
    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }
    @Override
    public View getChildView(int groupPosition, final int childPosition,
                             boolean isLastChild, View convertView, ViewGroup parent) {
        final String childText = (String) getChild(groupPosition, childPosition);
        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.house_holld_list_item, null);
        }
        TextView txtListChild = (TextView) convertView
                .findViewById(R.id.house_hold_list_item);
        txtListChild.setText(childText);
        return convertView;
    }
    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }
    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }
    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }
    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }
    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
                             View convertView, ViewGroup parent) {
        HouseHoldList_Model model = (HouseHoldList_Model) getGroup(groupPosition);
        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.house_hold_list_row, null);
        }
        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.house_hold_name);
        lblListHeader.setText(model.name);
        return convertView;
    }
    @Override
    public boolean hasStableIds() {
        return false;
    }
    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }
}

我的house_hold_list_row是行的自定义布局，其中我有不同的字段，如名称，地址等，但当时我只显示名称。这是我的日志猫。

11-13 18:03:05.565 6756-6756/com.zaigham.lhw_diary E/AndroidRuntime: FATAL EXCEPTION: main
                                                                     Process: com.zaigham.lhw_diary, PID: 6756
                                                                     android.view.InflateException: Binary XML file line #0: Error inflating class TextView
                                                                         at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:714)
                                                                         at android.view.LayoutInflater.rInflate(LayoutInflater.java:756)
                                                                         at android.view.LayoutInflater.rInflate(LayoutInflater.java:759)
                                                                         at android.view.LayoutInflater.rInflate(LayoutInflater.java:759)
                                                                         at android.view.LayoutInflater.rInflate(LayoutInflater.java:759)
                                                                         at android.view.LayoutInflater.rInflate(LayoutInflater.java:759)
                                                                         at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
                                                                         at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
                                                                         at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
                                                                         at com.zaigham.lhw_diary.HouseHoldList.ExpandableListAdapter.getGroupView(ExpandableListAdapter.java:86)

这是我的house_hold_list_row

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/gray">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/white"
        android:layout_centerInParent="true"
        android:layout_marginRight="5dp"
        android:layout_marginLeft="5dp"
        android:orientation="vertical">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:weightSum="3">
            <TextView
                android:id="@+id/house_hold_number"
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:text="1"
                android:layout_gravity="center_vertical"
                android:layout_marginLeft="5dp"
                android:padding="8dp"
                android:gravity="center"
                android:layout_marginTop="10dp"
                android:layout_marginBottom="10dp"
                android:textColor="@color/white"
                android:background="@drawable/hh_count_round"
                android:layout_weight=".5"/>
            <LinearLayout
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:padding="10dp"
                android:layout_weight="2.2"
                android:orientation="vertical">
                <TextView
                    android:id="@+id/house_hold_name"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:textStyle="bold"
                    android:textSize="18dp"
                    android:textColor="@color/blacktext"
                    android:text="Muhammad Ramza"/>
                <TextView
                    android:id="@+id/house_hold_address"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="Main double road g-11"
                    android:textColor="@color/blacktext"/>
                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal">
                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="Family Members"
                        android:textColor="@color/blacktext" />
                    <TextView
                        android:id="@+id/house_hold_fm_number"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="10"
                        android:layout_marginLeft="10dp"
                        android:background="@drawable/hh_fm_count_round"
                        android:textColor="@color/white"/>
                </LinearLayout>
            </LinearLayout>
            <ImageView
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:src="@drawable/down"
                android:layout_marginRight="5dp"
                android:layout_gravity="center"
                android:layout_weight=".3"/>
        </LinearLayout>
    </LinearLayout>
</RelativeLayout>

Answer 1

This will work
    @Override
        public View getGroupView(int groupPosition, boolean isExpanded,
                                 View convertView, ViewGroup parent) {
            HouseHoldList_Model model = (HouseHoldList_Model) getGroup(groupPosition);
            if (convertView == null) {
                LayoutInflater infalInflater = (LayoutInflater) this._context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                convertView = infalInflater.inflate(R.layout.house_hold_list_row, null);
    TextView lblListHeader = (TextView) convertView
                    .findViewById(R.id.house_hold_name);
            }
            lblListHeader.setText(model.name);
            return convertView;
        }

Answer 2

IMO 您的文本视图无法引用 convertView，因此请在 if(( 条件下尝试以下代码

    if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.house_hold_list_row, null)
          TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.house_hold_name);
        lblListHeader.setText(model.name);
        }