的CheckBox將自動取消選中時ExpandableListView擴大

Question

public class ApisimpleActivity extends ExpandableListActivity { 

    ExpandableListAdapter mAdapter; 
Button btn; 
CheckBox chk1; 
String l=""; 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     // Set up our adapter 
     setContentView(R.layout.main); 
     btn=(Button)findViewById(R.id.button); 
     btn.setOnClickListener(new OnClickListener(){ 

      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
      int i=getExpandableListView().getChildCount(); 
      int k=0; 
      //Toast.makeText(ApisimpleActivity.this, "hello"+i, Toast.LENGTH_LONG).show(); 

      Toast.makeText(ApisimpleActivity.this, k+"",Toast.LENGTH_LONG).show(); 
      }  }); 
     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, "Hello World"); 
    } 

    @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 = { "People Names", "Dog Names", "Cat Names", "Fish Names" }; 
     private String[][] children = { 
       { "Arnold", "Barry", "Chuck", "David" }, 
       { "Ace", "Bandit", "Cha-Cha", "Deuce" }, 
       { "Fluffy", "Snuggles" }, 
       { "Goldy", "Bubbles" } 
     }; 
     View v; 


     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.FILL_PARENT, 64); 

      TextView textView = new TextView(ApisimpleActivity.this); 
      textView.setLayoutParams(lp); 
      // 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()); 
      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) { 
      v = null; 
      v=convertView; 
      if(v==null) 
      {LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
      v = vi.inflate(R.layout.group, null); 
     /* chk1 =(CheckBox)((View)v).findViewById(R.id.chk); 
      chk1.setOnCheckedChangeListener(new OnCheckedChangeListener() 
      { 

       @Override 
       public void onCheckedChanged(CompoundButton arg0, boolean arg1) { 
        TextView txt = null; 
        if(arg0.isChecked()==true) 
        { 
         txt=(TextView) v.findViewById(R.id.txt); 
        l+=txt.getText().toString(); 
        Toast.makeText(ApisimpleActivity.this,l, Toast.LENGTH_LONG).show(); 
        } 

       } 

      });*/ 
      } 
     return v;} 

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

     public boolean hasStableIds() { 
      return true; 
     } 

    } 
} 

你好，這是我的代碼它工作正常顯示我所有的孩子，但問題是在groupview有一個複選框，當我在任何複選框，單擊，然後展開it.it成爲選中任何人都可以告訴我爲什麼在擴大清單以及如何解決這個問題上沒有檢查的原因。 請幫忙解決這個問題。

Answer 1

它可能會幫助你。 將複選框設爲靜態，如果您使用多個複選框，則使用stringbuilder來存儲選中的值。