我正在创建适配器映像,但遇到以下 2 个错误:
这是代码
public class GridViewAdapter {
private Context mcontext;
private int layoutResourceId;
public GridViewAdapter(Context context, int layoutResourceId, ArrayList<Listitem> listitem) {
super(context, layoutResourceId, listitem);
this.layoutResourceId = layoutResourceId;
this.mcontext =context;
}
这是第二个错误
cannot resolve method getitem()
` Listitem item = getItem(position);`
if (row == null) {
LayoutInflater inflater = LayoutInflater.from(mcontext);
row = inflater.inflate(layoutResourceId, parent, false);
holder = new ViewHolder();
holder.imageTitle = (TextView) row.findViewById(R.id.text);
holder.imageView = (ImageView) row.findViewById(R.id.imageView);
row.setTag(holder);
} else {
holder = (ViewHolder) row.getTag();
}
Listitem item = getItem(position);
super
尝试调用super class
。你没有扩展任何东西,所以隐含地,你继承自Object
反过来,它没有这样的构造函数(带有三个参数的构造函数)
Change
public class GridViewAdapter {
with
public class GridViewAdapter extends ArrayAdapter<ListItem> {
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