Question

我使用CustomAdapter创建了listView。我正在尝试为列表视图的第一项设置另一个布局。我尝试了位置，但没有帮助。有什么建议？

public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    ViewHolder holder;

    Log.d("Position: ",String.valueOf(position));
    if (convertView == null) {
        if(position==0)
            convertView = inflater.inflate(R.layout.row1, null);
        else
            convertView = inflater.inflate(R.layout.row, null);

        holder = new ViewHolder();
        holder.nTitle = (TextView) convertView.findViewById(R.id.listTitle);
        holder.nDate = (TextView) convertView.findViewById(R.id.listDate);
        holder.nCategory = (TextView) convertView.findViewById(R.id.listCategory);
        holder.nImage = (ImageView) convertView.findViewById(R.id.listImage);
        convertView.setTag(holder);
    } else
        holder = (ViewHolder) convertView.getTag();

    if (newsList.get(position) != null) {
        holder.imageUrl = newsList.get(position).image;
        holder.nTitle.setText(newsList.get(position).title);
        holder.nCategory.setText(newsList.get(position).category);
        holder.nDate.setText(Base.getInstance(aContext).getDateString(newsList.get(position).date));
        holder.nImage.setImageResource(R.drawable.photo_bg);
    }

    return convertView;
}

我的模板：

Answer 1

你可以这样做

在适配器中有以下内容

private static final int TYPE_ITEM1 = 0;
private static final int TYPE_ITEM2 = 1;

覆盖getItemViewType

int type;
@Override
public int getItemViewType(int position) {

    if (position== 0){ // position 0 
        type = TYPE_ITEM1;
    } else {
        type = TYPE_ITEM2;
    }

    return type;
}

并覆盖getViewTypeCount

 @Override
 public int getViewTypeCount() {
        return 2; // we have 2 types
 }

在getView

  int type = getItemViewType(position);
    // instead of if else you can use a case
   if (convertView == null)  {
    if (type == TYPE_ITEM1) { 
            //inflate layout of type1
      }
    if (type == TYPE_ITEM2) {
            //inflate layout of type2
    }  
   // Your rest of the code

文件：

https://developer.android.com/reference/android/widget/Adapter.html#getItemViewType%28int%29

https://developer.android.com/reference/android/widget/Adapter.html#getViewTypeCount%28%29

同时浏览此视频。谈话中涵盖了大多数概念

https://www.youtube.com/watch?v=wDBM6wVEO70

使用RecyclerView代替ListView会更好

Answer 2

如果只有第一项与ListView中的其他项目不同，建议您使用addHeaderView而不是在getView中对其进行充气。首先在Activity或Fragment中对该视图进行通知，然后再将其添加到该列表视图中。

关注this.

如何为第一个listView项设置另一个布局？

2 个答案: