我已经阅读了几个关于stackoverflow解决这个问题的问题,但是我无法解决我的问题。 recyclerview显示网页浏览。我的问题是,适配器,最初,加载正确的价值观(下图):RecyclerView适配器在滚动期间采取错误的值
但是当我向下滚动,并且再次滚动到第一位置,错误值显示在网页视图(如下图):
我觉得这个问题可以从以前开始加载源自到web视图,但我没有怎样处理这个问题的任何想法。这里是我的代码的相关部分:
/* in my notation, pg is equivalent to page.*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_ebook_list, container, false);
mEbookRecyclerView = (RecyclerView) view.findViewById(R.id.ebook_recycler_view);
mLayoutManager = new LinearLayoutManager(getActivity());
mEbookRecyclerView.setLayoutManager(mLayoutManager);
updateUI();
return view;
}
@Override
public void onResume() {
super.onResume();
updateUI();
}
private void updateUI() {
if (mAdapter == null) {
EbookLab ebookLab = EbookLab.get(getActivity());
List<String> pgs = ebookLab.getPgs();
mAdapter = new EbookAdapter(pgs);
mEbookRecyclerView.setAdapter(mAdapter);
}
}
/* ******codes for preparation of menus which I have ignored *******/
private class EbookHolder extends RecyclerView.ViewHolder {
private String mPg;
public EbookHolder(LayoutInflater inflater, ViewGroup container) {
super(inflater.inflate(R.layout.list_item_ebook, container, false));
mListWebView = (WebView) itemView.findViewById(R.id.list_web_View);
mListWebView.getSettings().setLoadWithOverviewMode(true);
}
public void bindEbook(String pg) {
mPg = pg;
mListWebView.loadDataWithBaseURL("file:///android_asset/", "Stack Over Flow " + String.valueOf(glbPos), "text/html", "UTF-8", null);
}
}
private class EbookAdapter extends RecyclerView.Adapter<EbookHolder> {
private List<String> mPgs;
public EbookAdapter(List<String> pgs) {
mPgs = pgs;
}
@Override
public EbookHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
return new EbookHolder(layoutInflater, parent);
}
@Override
public void onBindViewHolder(EbookHolder holder, int position) {
String pg = mPgs.get(position);
glbPos = position;//A global variable for position
holder.bindEbook(pg);
}
@Override
public int getItemCount() {
return mPgs.size();
}
public void setPgs(List<String> pgs) {
mPgs.clear();
mPgs.addAll(pgs);
notifyDataSetChanged();
}
}
任何帮助表示赞赏。
更新:在我的代码中,我将mListWebView定义为全局变量。但它应该在private class EbookHolder extends RecyclerView.ViewHolder
内定义。 然后我删除bindEbook(String pg)
方法,直接更新mListWevView
内public void onBindViewHolder(EbookHolder holder, int position)
:
holder.mListWebView.loadDataWithBaseURL("file:///android_asset/", "Stack Over Flow " + String.valueOf(glbPos), "text/html", "UTF-8", null);
我的问题>>是否调用bindEbook(String pg)
相比,滚动recyclerview或它关系到Android的架构需要更长的时间?
您viewholder是错误的 –
@ war_Hero:你能不能给我更多的细节? –
发布您的适配器生病的解释,只是作为一个JIST在视图内的视图内部被用来维持位置 –