Question

在我的ExpandableListview中，我使用的Imageview和Checkbox用于childview，类似于形状图像和名称。

当我勾选特定子项的checkbox时，滚动选中的状态更改后，另一个子项也会被勾选。

我需要选择多个值。

public class ExpandableListAdapter extends BaseExpandableListAdapter {

    private static final int[] EMPTY_STATE_SET = {};
    private static final int[] GROUP_EXPANDED_STATE_SET =
            {android.R.attr.state_expanded};
    private static final int[][] GROUP_STATE_SETS = {
        EMPTY_STATE_SET, // 0
        GROUP_EXPANDED_STATE_SET // 1
    };
    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<String>> _listDataChild;

    private ArrayList<Boolean> itemChecked = new ArrayList<Boolean>();
    private boolean[] itemCheckedBoolean =  new boolean[100]; 



    Bitmap bmp;
    LayoutInflater infalInflater;


    ImageLoader imageLoader;

    public ExpandableListAdapter(Context context, List<String> listDataHeader, HashMap<String, List<String>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
        infalInflater = (LayoutInflater) this._context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();      
        StrictMode.setThreadPolicy(policy);

        imageLoader=new ImageLoader(_context);   

        for (int i = 0; i < SearchWhiteDiamondsActivity.shape_list.size(); i++) {
            itemChecked.add(i, false);
        }
    }

    @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) {

        String childText = (String) getChild(groupPosition, childPosition);  
        Log.e("_childText", "karjeevch "+childText);


        int itemType = getChildType(groupPosition,childPosition);      


        ViewHolder viewHolder = null;
        switch (itemType) {

        case 0:
            viewHolder = null;
            if (convertView==null) {

                viewHolder=new ViewHolder();                
                convertView = infalInflater.inflate(R.layout.list_child_shape, null);
                viewHolder.shape_name = (CheckBox) convertView.findViewById(R.id.shape_chk_box);
                //viewHolder.shape_name = (TextView) convertView.findViewById(R.id.shape_chk_box);
                viewHolder.img_shape_icon=(ImageView)convertView.findViewById(R.id.img_shape);                


                imageLoader.DisplayImage("http://rosycontact.com/shashvat/images/"+childText.toLowerCase()+".png", viewHolder.img_shape_icon);                
                Log.e("shape", "karjeevshp "+childText);
                viewHolder.shape_name.setText(childText);
                convertView.setTag(viewHolder);               

               final CheckBox shape_name_temp=viewHolder.shape_name;
               //final TextView shape_name_temp=viewHolder.shape_name;



               viewHolder.shape_name.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

                    @Override
                    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                        // TODO Auto-generated method stub

                        int id=buttonView.getId();
                        if (id==R.id.shape_chk_box) {

                            if (shape_name_temp.isChecked()==true) {

                                String shape_str=shape_name_temp.getText().toString();
                                All_link.SHAPE_LIST.add(shape_str);
                                Toast.makeText(_context, shape_name_temp.getText().toString(), Toast.LENGTH_SHORT).show();
                                Log.e("chk_shape", "karjeevch "+shape_name_temp.getText().toString());
                                itemChecked.set(childPosition, true);
                            }
                            else{
                                String shape_str=shape_name_temp.getText().toString();
                                All_link.SHAPE_LIST.remove(shape_str);                              
                                itemChecked.set(childPosition, false);
                            }
                        }                                                                                           
                    }
                });                                                                      
            }
            else{
                //viewHolder=new ViewHolder();
                viewHolder=(ViewHolder)convertView.getTag();
                imageLoader.DisplayImage("http://rosycontact.com/shashvat/images/"+childText.toLowerCase()+".png", viewHolder.img_shape_icon);                                             
                viewHolder.shape_name.setText(childText);                               
                convertView.setTag(viewHolder);                             
            }
            return convertView;

Answer 1

保存复选框的状态....

viewHolder.checkbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                int getPosition = (Integer) buttonView.getTag();  // Here we get the position that we have set for the checkbox using setTag.
                list.get(getPosition).setSelected(buttonView.isChecked()); // Set the value of checkbox to maintain its state.
            }
        });

复选框在ExpandableListview android的子视图中无法正常运行

1 个答案: