Question

我正在使用baseadapter。我成功地在列表视图中调整了图像和文本。我有3张图片和文字。现在我想在列表视图中逐个点击更改图像和文本背景这是我的基本适配器代码

public class SlideMenuAdapter extends BaseAdapter {
private Context mContext;
private final String[] menu_items_id;

private final int[] Imageid;
TextView textView;
ImageView imageView;

private static LayoutInflater inflater = null;

public SlideMenuAdapter(Context context, String[] names, int[] Imageid)
         {
    mContext = context;

    this.Imageid = Imageid;
    this.menu_items_id = names;
    inflater = (LayoutInflater) mContext
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

@Override
public int getCount() {

    return Imageid.length;
}

@Override
public Object getItem(int position) {

    return null;
}

@Override
public long getItemId(int position) {

    return 0;
}

@SuppressLint("ViewHolder")
@Override
public View getView(int position, View convertView, ViewGroup parent) {

    View grid;

    grid = new View(mContext);
    grid = inflater.inflate(R.layout.azercell_slidemenu_adaper, null);
    textView = (TextView) grid.findViewById(R.id.desc);
    imageView = (ImageView) grid.findViewById(R.id.photo);

    textView.setText(menu_items_id[position]);

    textView.setTypeface(MainmoviesActivity.dejavusans);





    imageView.setImageResource(Imageid[position]);
    return grid;
}

} 这是一个主要的java代码

int[] menu_images = { R.drawable.menu_schedule, R.drawable.menu_about,
        R.drawable.menu_booking };

int[] menu_imagesover = { R.drawable.schedule_ove, R.drawable.about_over,
        R.drawable.booking_over };
private String[] menu_namesEng = { "schedule_ove", "about_over", "about_over" };






    listView.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {

            TextView textView1 = (TextView) parent.findViewById(R.id.desc);

            ImageView imageView=(ImageView)parent.findViewById(R.id.photo);
            switch (position) {
            case 0:
                textView1.setTextColor(Color.parseColor("#8f332a"));
                imageView.setImageResource(menu_imagesover[position]);
                break;

            case 1:
                textView1.setTextColor(Color.parseColor("#ffffff"));
                imageView.setImageResource(menu_imagesover[position]);
                break;

            default:
                break;
            }


        }

    });

我可以更改图片和文字列表视图的第一项，当我点击第二项时，第一项的图像和文字也会再次更改。我究竟做错了什么？如果有人知道解决方案，请帮助我。

Answer 1

使用视图代替父级，例如：

TextView textView1 = (TextView) view.findViewById(R.id.desc);
ImageView imageView = (ImageView) view.findViewById(R.id.photo);

因为使用父级，findViewById将通过viewtree并返回第一个匹配，这始终是列表中的第一个项目。

我还建议使用RecyclerView吗？ :) https://developer.android.com/reference/android/support/v7/widget/RecyclerView.html

Android使用开关按位置更改列表视图中的图像和文本

1 个答案: