如何在Android中的ExpandableListView中使可點擊的子節點

我使用此示例代碼samples \ android-8 \ ApiDemos \ src \ com \ example \ android \ apis \ view \ ExpandableList1。我想點擊孩子節點，但我不能遵循我的代碼。你有任何簡單的解決方案來處理它？如何在Android中的ExpandableListView中使可點擊的子節點

我的代碼如下。

public class Option_Hakkimizda_Bir extends ExpandableListActivity { 

ExpandableListAdapter mAdapter; 

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

    // Set up our adapter 
    mAdapter = new MyExpandableListAdapter(); 
    setListAdapter(mAdapter); 
    registerForContextMenu(getExpandableListView()); 
} 

@Override 
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 
    menu.setHeaderTitle("Sample menu"); 
    menu.add(0, 0, 0, R.string.expandable_list_sample_action); 
} 

@Override 
public boolean onContextItemSelected(MenuItem item) { 
    ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) item.getMenuInfo(); 

    String title = ((TextView) info.targetView).getText().toString(); 

    int type = ExpandableListView.getPackedPositionType(info.packedPosition); 
    if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) { 
     int groupPos = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
     int childPos = ExpandableListView.getPackedPositionChild(info.packedPosition); 
     Toast.makeText(this, title + ": Child " + childPos + " clicked in group " + groupPos, 
       Toast.LENGTH_SHORT).show(); 
     return true; 
    } else if (type == ExpandableListView.PACKED_POSITION_TYPE_GROUP) { 
     int groupPos = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
     Toast.makeText(this, title + ": Group " + groupPos + " clicked", Toast.LENGTH_SHORT).show(); 
     return true; 
    } 

    return false; 
} 

/** 
* A simple adapter which maintains an ArrayList of photo resource Ids. 
* Each photo is displayed as an image. This adapter supports clearing the 
* list of photos and adding a new photo. 
* 
*/ 
public class MyExpandableListAdapter extends BaseExpandableListAdapter { 
    // Sample data set. children[i] contains the children (String[]) for groups[i]. 
    private String[] groups = { " Su Yalıtım", " Isı Yalıtımı", " Çatı Kaplama Malzemeleri", " BTM Optigreen Yeşil Catilar"," BTM Schüco Solar Güneş Enerjili Çatı Sistemleri" }; 
    private String[][] children = { 
      { "BTM Su Yalıtım Örtüleri", "BTM PVC Su Yalıtım Örtüsü Polypan", "BTM Surma Esaslı Su Yalıtım Örtüleri" }, 
      { "BTM Polpan Isı Yalıtım Levhası", "BTMPlus Dış Cephe Isı Yalıtım Sistemi- MANTOLAMA Sistemi" }, 
      { "BTM Çatı Kaplama Malzemesi Shingle", "Oluklu Bitümlü Çatı Kaplama Malzemesi","BTM Kiremit Altı Su Yalıtım Membranı","BTM Taşlı Çatı Kaplama Örtüsü Poliroof" }, 
      { "Ekonomik Çatı Çözümü", "Eğimli Çati Çözümü" }, 
      { "Ince Film Çözümler", "Poli-Mono Kristal Moduller" } 
    }; 

    public Object getChild(int groupPosition, int childPosition) { 
     return children[groupPosition][childPosition]; 
    } 

    public long getChildId(int groupPosition, int childPosition) { 
     return childPosition; 
    } 

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

    public TextView getGenericView() { 
     // Layout parameters for the ExpandableListView 
     AbsListView.LayoutParams lp = new AbsListView.LayoutParams(
       ViewGroup.LayoutParams.MATCH_PARENT, 64); 

     TextView textView = new TextView(Option_Hakkimizda_Bir.this); 
     textView.setLayoutParams(lp); 
     //textView.setTextSize((float) 11.5); 
     // Center the text vertically 
     textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT); 
     // Set the text starting position 
     textView.setPadding(36, 0, 0, 0); 
     return textView; 
    } 

    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, 
      View convertView, ViewGroup parent) { 
     TextView textView = getGenericView(); 
     textView.setText(getChild(groupPosition, childPosition).toString()); 
     textView.setTextSize((float) 13.0); 
     //convertView.setBackgroundColor(getResources().getColor(R.color.white)); 
     return textView; 

    } 

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

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

    public long getGroupId(int groupPosition) { 
     return groupPosition; 
    } 

    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, 
      ViewGroup parent) { 
     TextView textView = getGenericView(); 
     textView.setText(getGroup(groupPosition).toString()); 
     textView.setTextSize((float) 15.0); 
     return textView; 
    } 

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

    public boolean hasStableIds() { 
     return true; 
    } 

}

}

來源

2012-07-04 kafa.gitti