我正在尝试在适配器中添加数据后更新它,但是它没有更新。当我切换到其他活动并返回时,适配器得到了更新。这是我的代码:
void updateAdapter(){
adapter.setData(getData());
adapter.notifyDataSetChanged();
Log.d("TAG"," DATA SIZE AFTER UPDATE : "+getData().size() +" items : "+adapter.getItemCount());
}
我的适配器:
private void createAdapter(final RecyclerView recyclerView , final List<Information> data) {
List<Information> content = new ArrayList<>();
Log.d("TAG","createAdapter Called");
final int[] currentRowPosition = {0};
content = data;
final List<Information> finalContent = content;
adapter = new ParallaxRecyclerAdapter<Information>(finalContent) {
/// my onBindViewHolder
@Override
public void onBindViewHolderImpl(final RecyclerView.ViewHolder viewHolder, final ParallaxRecyclerAdapter<Information> adapter, final int i) {
currentRowPosition[0] = i;
if ( i <= finalContent.size() -1 ){
((ViewHolder) viewHolder).linearLayout.setVisibility(View.GONE);
final Information current = finalContent.get(i);
((ViewHolder) viewHolder).DESCRIPTION.setText(current.description);
}else {
// this is my loadMore button which stays at the last row of recyclerView
((ViewHolder) viewHolder).setIsRecyclable(false);
((ViewHolder) viewHolder).linearLayout.setVisibility(View.VISIBLE);
((ViewHolder) viewHolder).itemView.getLayoutParams().height = 100;
((ViewHolder) viewHolder).LOADMORE.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
fetchNext();
}
});
}
}
//my on create View Holder
@Override
public RecyclerView.ViewHolder onCreateViewHolderImpl(ViewGroup viewGroup, final ParallaxRecyclerAdapter<Information> adapter, int i) {
return new ViewHolder(getActivity().getLayoutInflater().inflate(R.layout.custom_row, viewGroup, false));
}
@Override
public int getItemCountImpl(ParallaxRecyclerAdapter<Information> adapter) {
return finalContent.size()+1;
}
});
// adding header to recyclerView
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
View header = getActivity().getLayoutInflater().inflate(R.layout.header, recyclerView, false);
headerImageView = (ImageView) header.findViewById(R.id.headerImageView);
//setting CoverImage
adapter.setParallaxHeader(header, recyclerView);
adapter.setData(content);
recyclerView.setAdapter(adapter);
}
您有什么想法可以实时更新RecyclerView上的新项目吗?任何指导都将对我有所帮助。
updateAdapter
是我添加新数据的地方 @Marat - remy boys