Android ListView的自定义适配器忽略设置值
我将创建一个标签和图标的列表视图 以下是我所做的:Android ListView的自定义适配器忽略设置值,android,listview,android-listview,android-arrayadapter,android-listadapter,Android,Listview,Android Listview,Android Arrayadapter,Android Listadapter,我将创建一个标签和图标的列表视图 以下是我所做的: 我创建了一个名为cardList的空白ListView。 我创建了一个扩展ArrayAdapter 我已经将卡片列表设置为该自定义视图: cardList = findViewById(R.id.cards_list); CustomView customView = new CustomView(this, names, images); cardList.setAdapter(customView); 在哪里 CustomView类: p
我创建了一个名为
cardList
的空白ListView
。
我创建了一个扩展
ArrayAdapter
我已经将
卡片列表设置为该自定义视图:
cardList = findViewById(R.id.cards_list);
CustomView customView = new CustomView(this, names, images);
cardList.setAdapter(customView);
在哪里
CustomView
类:
package ...
import ...
public class CustomView extends ArrayAdapter<String> {
private String[] names;
private Integer[] images;
private Activity context;
CustomView(Activity context, String[] names, Integer[] images) {
super(context, R.layout.card_row, R.id.cardName, names);
this.context = context;
this.names = names;
this.images = images;
}
@SuppressLint("InflateParams")
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
View r = convertView;
ViewHolder viewHolder;
if (r == null) {
LayoutInflater layoutInflater = context.getLayoutInflater();
r = layoutInflater.inflate(R.layout.card_row, null, true);
viewHolder = new ViewHolder(r);
r.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) r.getTag();
}
viewHolder.name.setText(/*skipping: names[position]*/"Some text");
viewHolder.name.setTypeface(Typeface.createFromAsset(AppName.assetManager, "fonts/prototype.ttf"));
viewHolder.image.setImageResource(images[position]);
return super.getView(position, convertView, parent);
}
class ViewHolder {
TextView name;
ImageView image;
ViewHolder(View v) {
name = v.findViewById(R.id.cardName);
image = v.findViewById(R.id.symbolImg);
}
}
}
调试表明应用程序已经完成了这一部分,但是应该在其中设置的所有内容都被忽略了。我遗漏了什么吗?当您从getView
返回父视图时,您的自定义视图将被忽略,而不是您的父视图
使用
而不是
return super.getView(position, convertView, parent);
使用recyclerview而不是listview。我犯了一个多么愚蠢的错误。。。我太粗心了。无论如何,谢谢你@桑德拉,你会来的。
viewHolder.name.setText(/*skipping: names[position]*/"Some text");
viewHolder.name.setTypeface(Typeface.createFromAsset(AppName.assetManager, "fonts/prototype.ttf"));
viewHolder.image.setImageResource(images[position]);
return r;
return super.getView(position, convertView, parent);