没有收到任何错误,所有数据似乎都有效。由于某种原因,没有调用与视图相关的方法。我已确定以下事项:
这是片段中的声明,后跟适配器。任何帮助将不胜感激,因为这完全令人困惑。
SubMenuAdapter adapter = new SubMenuAdapter(getActivity(), mContentItems);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(adapter);
public class SubMenuAdapter extends RecyclerView.Adapter<SubMenuAdapter.ViewHolder> {
private static final String TAG = String.format("==> %S", SubMenuAdapter.class.getSimpleName());
private final List<ContentItem> mContentItems;
private Context mContext;
public SubMenuAdapter(Context context, List<ContentItem> contenItems) {
Log.d(TAG, "Constructor called");
mContentItems = contenItems;
mContext = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Log.d(TAG, "onCreateViewHolder called");
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_resource_efficiency, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
Log.d(TAG, "onBindViewHolder called");
ContentItem item = mContentItems.get(position);
holder.textName.setText(item.getName());
FontSetter.setMyriadProRegular(mContext, holder.textName);
Picasso.with(mContext).load("file://" + item.getPreviewImageDefault()).into(holder.imageIcon);
}
@Override
public int getItemCount() {
Log.d(mContext, String.format("getItemCount: %d", mContentItems.size()));
return mContentItems.size();
}
// ViewHolder
public static class ViewHolder extends RecyclerView.ViewHolder {
TextView textName;
ImageView imageIcon;
public ViewHolder(View view) {
super(view);
textName = (TextView) view.findViewById(R.id.tv_resource_efficiency_option);
imageIcon = (ImageView) view.findViewById(R.id.iv_resource_efficiency_icon);
}
}
这也可能对某人有帮助
首次使用
recyclerView.setAdapter(adapter);
进而:
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
所以它看起来像这样:
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
顺序颠倒了
Update:
现在我只是使用:
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
on the RecyclerView
在 XML 中
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