android - 列表适配器中的复选框行为异常

Question

我有一个列表适配器，每个项目都有一个复选框。我还可以选择从该列表中删除用户检查的所有项目。应该删除所选项目的部分运行良好，但是..例如，如果我有

1. 0000
2. 5555
3. 9999

如果我选中 5555 和 9999，然后单击删除，它们就会消失，但是即使我没有按下它，0000 也会被选中。

(historyList是历史 fragment 中的所有项目。listToRemove只是选中的项目)

 @Override
public View onCreateView( LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState ) 
{ 
    View view = inflater.inflate( R.layout.fragment_history, container, false );
    adapter = new PasswordAdapter( historyList );
    setListAdapter(adapter);
    ImageView removeButton = ( ImageView ) view.findViewById( R.id.removeButton );
    removeButton.setOnClickListener( new OnClickListener(){
        @Override
        public void onClick( View v )
        {
            if ( !listToRemove.isEmpty() )
            {
                listToRemove.clear();

                adapter.updateList( historyList );
            }
        }
    });

    return view;
}
...
...
...
@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final View result;

        if (convertView == null) 
        {
            result = LayoutInflater.from(parent.getContext()).inflate(R.layout.history_list_item, parent, false);
        } 
        else 
        {
            result = convertView;
        }

        final Password item = getItem( position );

        ( (TextView) result.findViewById( R.id.historyPasswordTextView) ).setText(item.getPasswordString());
        ( (TextView) result.findViewById( R.id.historyDateTextView ) ).setText(item.getPasswordString());
        CheckBox checkBoxToRemove = (CheckBox) result.findViewById( R.id.removePasswordFromHistoryCheckBox ) ;
        checkBoxToRemove.setOnCheckedChangeListener( new OnCheckedChangeListener(){
                @Override
                public void onCheckedChanged( CompoundButton buttonView, boolean isChecked )
                {
                    if( isChecked )
                    {
                        listToRemove.add( item );
                    //  Log.d( "TAG", listToRemove.toString() );

                        for( int i=0; i<listToRemove.size(); i++)
                            Log.d("TAG","checked after add: "+ listToRemove.get(i).getPasswordString());
                    }
                    else
                    {
                        listToRemove.remove( item );
                        for( int i=0; i<listToRemove.size(); i++)
                            Log.d("TAG","checked after remove: "+ listToRemove.get(i).getPasswordString());
                    }

                }
            });

我错过了什么吗？

Answer 1

像这样尝试也许有用

     public View getView(int position, View convertView, ViewGroup parent) {
            final View result;
    ViewHolder holder;

            if (convertView == null) 
            {
    holder = new ViewHolder();
                convertView = LayoutInflater.from(parent.getContext()).inflate(R.layout.history_list_item, parent, false);

            holder. checkBoxToRemove = (CheckBox) convertView.findViewById( R.id.removePasswordFromHistoryCheckBox ) ;
    convertView.setTag(holder);
            } 
            else 
            {

    holder = (ViewHolder) convertView.getTag();
            }

            final Password item = getItem( position );


            holder .checkBoxToRemove.setOnCheckedChangeListener( new OnCheckedChangeListener(){
                    @Override
                    public void onCheckedChanged( CompoundButton buttonView, boolean isChecked )
                    {
                        if( isChecked )
                        {
                            listToRemove.add( item );
                        //  Log.d( "TAG", listToRemove.toString() );

                            for( int i=0; i<listToRemove.size(); i++)
                                Log.d("TAG","checked after add: "+ listToRemove.get(i).getPasswordString());
                        }
                        else
                        {
                            listToRemove.remove( item );
                            for( int i=0; i<listToRemove.size(); i++)
                                Log.d("TAG","checked after remove: "+ listToRemove.get(i).getPasswordString());
                        }

                    }
                });
return convertView;
}
     class ViewHolder {
            CheckBox checkBoxToRemove;
    }

然后在您的 getView 中添加:

if(listToRemove.contains(item){
holder.checkBoxToRemove.setChecked(true);
}else{
holder.checkBoxToRemove.setChecked(false);
}