问题描述
我在回收器视图内部创建了一行，我在内部膨胀了两行或更多但是当我滚动时，项目再次被使用。 我没有得到回收视图的位置或动态删除它我需要一个提要和他们的评论。对于评论我需要膨胀布局，以显示它们创建getCommentInflaterView方法的feed。
但是使用getCommentInflaterView（）创建的视图会重复。 MyAdapterClass：
public class AllFeedsAdapter extends
RecyclerView.Adapter<AllFeedsAdapter.ViewHolder> {
ArrayList<Data> arrayListAllFeedsData;
Comment objComment;
Context context;
public AllFeedsAdapter(Context context, ArrayList<Data> data) {
this.context = context;
arrayListAllFeedsData = new ArrayList<>();
arrayListAllFeedsData = data;
}
@Override
public AllFeedsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
// Inflate the custom layout
View post_row_view = inflater.inflate(R.layout.row_teacher_post, parent, false);
// Return a new holder instance
ViewHolder viewHolder = new ViewHolder(post_row_view);
return viewHolder;
}
@Override
public void onBindViewHolder(AllFeedsAdapter.ViewHolder holder, int position) {
holder.txtUsernamePostCreator.setText(arrayListAllFeedsData.get(position).getFull_name());
holder.txtPostContent.setText(arrayListAllFeedsData.get(position).getFeed_text());
holder.txtPostLikeCounter.setText(arrayListAllFeedsData.get(position).getTotal_like());
holder.txtPostCommentsCounter.setText(arrayListAllFeedsData.get(position).getTotal_comment());
if (arrayListAllFeedsData.get(position).getComment().size() > 0) {
if (arrayListAllFeedsData.get(position).getComment().size() > 2) {
for (int i = 0; i < 2; i++) {
objComment = arrayListAllFeedsData.get(position).getComment().get(i);
if (getCommentInflaterView(objComment) == null) {
holder.llCommentRowInflater.addView(getCommentInflaterView(objComment));
} else {
holder.llCommentRowInflater.removeAllViews();
}
}
} else {
for (int i = 0; i < arrayListAllFeedsData.get(position).getComment().size(); i++) {
objComment = arrayListAllFeedsData.get(position).getComment().get(i);
if (getCommentInflaterView(objComment) == null) {
holder.llCommentRowInflater.addView(getCommentInflaterView(objComment));
} else {
holder.llCommentRowInflater.removeAllViews();
}
}
}
}
}
private View getCommentInflaterView(Comment commentData) {
LayoutInflater layoutInflater = LayoutInflater.from(context);
View v = layoutInflater.inflate(R.layout.post_comments_list_item, null, false);
TextView txtCommenterUsername = (TextView) v.findViewById(R.id.txt_username_commenter);
TextView txtCommenterComment = (TextView) v.findViewById(R.id.txt_comments_from_commenter);
TextView txtCommentDuration = (TextView) v.findViewById(R.id.txt_comment_duration);
txtCommenterUsername.setText(commentData.getUsername());
txtCommenterComment.setText(commentData.getComment());
txtCommentDuration.setText(commentData.getCommentBy());
return v;
}
@Override
public int getItemCount() {
return arrayListAllFeedsData.size();
}
/**
* USed to create static class for all the view if listitem child
*/
public static class ViewHolder extends RecyclerView.ViewHolder {
// Your holder should contain a member variable
// for any view that will be set as you render a row
public LinearLayout llParentTeacherPost, llCommentRowInflater;
// We also create a constructor that accepts the entire item row
// and does the view lookups to find each subview
public ViewHolder(View itemView) {
// Stores the itemView in a public final member variable that can be used
// to access the context from any ViewHolder instance.
super(itemView);
llParentTeacherPost = (LinearLayout) itemView.findViewById(R.id.ll_parent_teacher_post);
llCommentRowInflater = (LinearLayout) itemView.findViewById(R.id.ll_comment_row_inflater);
imgDpPostCreator = (ImageView) itemView.findViewById(R.id.img_dp_post_creator);
txtUsernamePostCreator = (TextView)
}
}
}
1楼
在适配器中覆盖这两个方法。
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
return position;
}
2楼
在你的适配器类AllFeedsAdapter ，你需要覆盖方法：
@Override
public long getItemId(int position){
// return specific item's id here
}
3楼
为我工作在循环器视图中加载数据之前清除内容
listOftrailers.clear（）;
4楼
我也有这个问题。 我可以确认添加getItemId和getItemViewType到适配器在滚动时解决了recyclerview项目中的图像重复。
@Override
public long getItemId(int position) {
return position;
}
@Override
public int getItemViewType(int position) {
return position;
}
我会留下这个评论，但我的反馈少于5。
5楼
在onBindViewHolder方法的最后，包括： holder.itemView.setTag(arrayListAllFeedsData.get(position));