Android RecyclerView适配器中的数据绑定
示例
也可以在RecyclerView适配器中使用数据绑定。
资料模型
public class Item {
private String name;
public String getName() {
return name;
}
}XML布局
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@{item.name}"/>转接器类别
public class ListItemAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Activity host;
private List<Item> items;
public ListItemAdapter(Activity activity, List<Item> items) {
this.host= activity;
this.items= items;
}
@Override
publicRecyclerView.ViewHolderonCreateViewHolder(ViewGroup parent, int viewType) {
//扩大布局并获取绑定
ListItemBinding binding = DataBindingUtil.inflate(host.getLayoutInflater(),
R.layout.list_item, parent, false);
return new ItemViewHolder(binding);
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
Item item = items.get(position);
ItemViewHolder itemViewHolder = (ItemViewHolder)holder;
itemViewHolder.bindItem(item);
}
@Override
public int getItemCount() {
return items.size();
}
private static class ItemViewHolder extendsRecyclerView.ViewHolder{
ListItemBinding binding;
ItemViewHolder(ListItemBinding binding) {
super(binding.getRoot());
this.binding= binding;
}
void bindItem(Item item) {
binding.setItem(item);
binding.executePendingBindings();
}
}
}