Question

我正在使用自定义适配器使用自定义项填充微调器。布局是一个下拉列表。

正如标题所说，我希望在我的微调器中有物品（代表类别）。喜欢：意大利，法国，德国。（例）。每个项目都应该打开，然后是第二个带有城市的微调器（就像嵌套的微调器一样）。喜欢：罗马，佛罗伦萨，米兰。我希望它的外观和行为类似于Microsoft Windows底部菜单（XP，Vista，7）。

有可能吗？任何人都可以帮忙吗？

哦......而且我的微调器位于抽屉DrawerLayout内，它会使ListView膨胀...只是为了增加一些复杂性;）

CustomSpinnerAdapter类

public class CustomSpinnerAdapterCity extends ArrayAdapter<SpinnerItem> {

    Context context;
    int layoutResID;
    List<SpinnerItem> spinnerData;
    protected LayoutInflater layoutInflater;

    public CustomSpinnerAdapterCity(Context context, int layoutResourceID, int textViewResourceId, List<SpinnerItem> spinnerDataList) {
        super(context, layoutResourceID, textViewResourceId, spinnerDataList);
        this.context=context;
        this.layoutResID=layoutResourceID;
        this.spinnerData=spinnerDataList;
    }

    public CustomSpinnerAdapterCity(Context context, int layoutResourceID, List<SpinnerItem> spinnerDataList) {
        super(context, layoutResourceID, spinnerDataList);

        this.context=context;
        this.layoutResID=layoutResourceID;
        this.spinnerData=spinnerDataList;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        return getCustomView(position, convertView, parent);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        return getCustomView(position, convertView, parent);
    }


    public View getCustomView(int position, View convertView, ViewGroup parent) {

        View row=convertView;
        SpinnerHolder holder;

        SpinnerItem mSpinnerItem =spinnerData.get(position);

            if(row==null)
            {
                LayoutInflater inflater=((Activity)context).getLayoutInflater();

                row=inflater.inflate(layoutResID, parent, false);
                holder=new SpinnerHolder();

                holder.current_city=(TextView)row.findViewById(R.id.current_city);
                holder.current_city_description=(TextView)row.findViewById(R.id.current_city_description);

                row.setTag(holder);
            }
            else
            {
                holder=(SpinnerHolder)row.getTag();
            }
            if(mSpinnerItem.getCurrentChoice()!=null)
            {
                holder.current_city.setText(mSpinnerItem.getCurrentChoice());
                holder.current_city_description.setText(mSpinnerItem.getCurrentChoiceDescription());
            }

       return row;
    }

    public int getPosition(SpinnerItem s) {
    return super.getPosition(s);        //return position of the last value
    }


@Override
    public int getCount() {
        return super.getCount()-3; // you dont display last item. It is used as hint.
    }
    public int getCountCertifiedonly() {
        return super.getCount()-2; // you dont display last item. It is used as hint.
    }
    public int getCountVIPonly() {
        return super.getCount()-1; // you dont display last item. It is used as hint.
    }
public int getCountCityNone() {
    return super.getCount()-1; // you dont display last item. It is used as hint.
}


private static class SpinnerHolder
    {
        TextView  current_city,current_city_description;

    }

}

SpinnerItem类

public class SpinnerItem implements Item{

    String choice;
    String choice_description;
    Boolean isSection = false;

    public SpinnerItem(String choice, String choice_description, Boolean isSection) {
        super();

        this.choice=choice;
        this.choice_description=choice_description;
        this.isSection=isSection;
    }

public String getCurrentChoiceDescription() {
    return choice_description;
}

public void setCurrentChoiceDescription(String choice_description) {
    this.choice_description = choice_description;
}

public String getCurrentChoice() {
    return choice;
}

public void setCurrentChoice(String choice) {
    this.choice = choice;
}

@Override
public boolean isSection() {
    return isSection;
}

}

Answer 1

您不需要列表视图，您可以使用导航抽屉和菜单组合。

查看详情

https://medium.com/ribot-labs/exploring-the-new-android-design-support-library-b7cda56d2c32

建议/帮助：在Spinner中实现类别的最佳方式（如Microsoft Windows＆＃39;操作系统菜单）

1 个答案: