Question

我遇到gridview的问题。我使用了一个非常简单的GridView，其中我有图像和下面的textView。我的问题是 - 我每行显示3张图像，在我的屏幕上一次显示12张图像，但对于第13张图像，图像是正确的，但下面的文字是第1张图像。如果我每行使用4张图片（我不想这样做），那么显示的文字是正确的。在滚动gridview交换的图像和文本之后

这是我的自定义gridview.java代码

public class CustomGrid extends BaseAdapter{
  private Context mContext;
  private final String[] web;
  private final int[] Imageid; 

    public CustomGrid(Context c,String[] web,int[] Imageid ) {
        mContext = c;
        this.Imageid = Imageid;
        this.web = web;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return web.length;
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        View grid;
        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        if (convertView == null) {  

            grid = new View(mContext);
            grid = inflater.inflate(R.layout.grid_single, null);
            TextView textView = (TextView) grid.findViewById(R.id.grid_text);
            ImageView imageView = (ImageView)grid.findViewById(R.id.grid_image);
            textView.setText(web[position]);
            imageView.setImageResource(Imageid[position]);
        } else {
            grid = (View) convertView;
        }

        return grid;
    }
}

请尽快回复

Answer 1

可能你需要更改代码如下。对于第13个项目，转换视图不为null，因此返回旧的第1个视图。

@覆盖 public View getView（int position，View convertView，ViewGroup parent）{ // TODO自动生成的方法存根查看网格; LayoutInflater inflater =（LayoutInflater）mContext.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
    if (convertView == null) {  

        grid = new View(mContext);
        grid = inflater.inflate(R.layout.grid_single, null);
        TextView textView = (TextView) grid.findViewById(R.id.grid_text);
        ImageView imageView = (ImageView)grid.findViewById(R.id.grid_image);

    } else {
        grid = (View) convertView;
    }
        textView.setText(web[position]);
        imageView.setImageResource(Imageid[position]);
    return grid;

Answer 2

这很好用

@Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
         View grid; 
         LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            if (convertView == null) {  

                grid = new View(mContext);
                grid = inflater.inflate(R.layout.grid_single, null);

            } else {
                grid = (View) convertView;
            }
            TextView textView = (TextView) grid.findViewById(R.id.grid_text);
             ImageView imageView = (ImageView)grid.findViewById(R.id.grid_image);
                textView.setText(web[position]);
                imageView.setImageResource(Imageid[position]);
            return grid;
    }

android gridview滚动图像错位

2 个答案: