RecyclerView-WithHeaderAndFooter


Source link: https://github.com/u3breeze/android-RecyclerView-WithHeaderAndFooter

android-RecyclerView-WithHeaderAndFooter

Extension of RecyclerView.Adapter. Can add header/footer to RecyclerView for LinearLayoutManager and GridLayoutManager.

Screenshot

Usage

Add Header/Footer View to RecyclerView

Step 1

  • Create Adapter Class which extends HFRecyclerViewAdapter
class HFAdapter extends HFRecyclerViewAdapter<String, HFAdapter.DataViewHolder>{

 public HFAdapter(Context context) {

 super(context);

}

 @Override

public void footerOnVisibleItem() {

 if(!isLoading){

  // loading more data, when load done, should set isLoading to false.

  //...

  isLoading = true;

 
}

}

@Override

public DataViewHolder onCreateDataItemViewHolder(ViewGroup parent, int viewType) {

 View v = LayoutInflater.from(parent.getContext())

.inflate(R.layout.data_item, parent, false);

 return new DataViewHolder(v);

}

 @Override

public void onBindDataItemViewHolder(DataViewHolder holder, int position) {

 holder.itemTv.setText(getData().get(position));

}

 class DataViewHolder extends RecyclerView.ViewHolder{

 TextView itemTv;

 public DataViewHolder(View itemView) {

  super(itemView);

  itemTv = (TextView)itemView.findViewById(R.id.itemTv);

 
}

}

  
}

Step 2

  • Use Adapter to add header/footer for RecyclerView
// set Adapter final HFAdapter hfAdapter = new HFAdapter(this);
 recyclerView.setAdapter(hfAdapter);
  // add header View headerView = LayoutInflater.from(this).inflate(R.layout.header, recyclerView, false);
 hfAdapter.setHeaderView(headerView);
 // add footer View footerView = LayoutInflater.from(this).inflate(R.layout.footer, recyclerView, false);
 hfAdapter.setFooterView(footerView);
  // remove header hfAdapter.removeHeader();
 // remove footer hfAdapter.removeFooter();
  // set data ArrayList<String> data = new ArrayList<>();
 for (int i=0; i<8; i++){

  data.add(String.format("Item %d", i));
 
}
 hfAdapter.setData(data);
  • For GridLayoutManager
final GridLayoutManager manager = new GridLayoutManager(this, 3);
 recyclerView.setLayoutManager(manager);
 //Set header/footer's spanCount to match parent in horizontal. manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {

  @Override
  public int getSpanSize(int position) {

if ( (hfAdapter.hasHeader() && hfAdapter.isHeader(position)) ||

  hfAdapter.hasFooter() && hfAdapter.isFooter(position) )

 return manager.getSpanCount();

 return 1;
  
}
 
}
);

END

Resources

FFmpeg-Android:

  • FFmpeg for Android compiled with x264, libass, fontconfig, freetype and fribidi
  • Supports Android L
  • FFmpeg Android Library

Supported Architecture:

  • armv7
  • armv7-neon
  • x86

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