Android - Simple RecyclerView, SwipeRefreshLayout - Tạo RecyclerView đơn giản hiển thị một danh sách có thể refresh trong Android Studio

1. Tạo View
Thêm thẻ sau trong layout file:

<android.support.v4.widget.SwipeRefreshLayout    

android:id="@+id/refresh_list"    

android:layout_width="match_parent"    

android:layout_height="match_parent"    

android:layout_marginTop="@dimen/_8sdp">
    <android.support.v7.widget.RecyclerView        

android:id="@+id/rcv_list"        

android:layout_width="match_parent"        

android:layout_height="match_parent" />
</android.support.v4.widget.SwipeRefreshLayout>

Tạo view cho item trong list: tạo một file xml: item_layout.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    

android:layout_width="match_parent"    

android:layout_height="wrap_content"    

android:layout_marginBottom="@dimen/_8sdp"    

android:background="@color/background_color"    

android:padding="@dimen/_8sdp">
    <TextView        

android:id="@+id/item_title"        

android:layout_width="match_parent"        

android:layout_height="wrap_content"        

android:paddingBottom="@dimen/_8sdp"        

android:paddingLeft="@dimen/_16sdp"        

android:paddingRight="@dimen/_8sdp"        

android:paddingTop="@dimen/_8sdp"        

android:text=".............."        

android:textSize="@dimen/text_size_small"        

android:textStyle="bold" />

</RelativeLayout>

2. Tạo adapter cho RecyclerView

Tạo ViewHolder cho item trong RecyclerView:

public class CustomViewHolder extends RecyclerView.ViewHolder {
    private TextView title;
    public CustomViewHolder(View itemView) {
        super(itemView);        

title = (TextView) itemView.findViewById(R.id.item_title);    }

    public void bindData() {
        //// TODO: 3/22/2017 bind data here    }

    public void unbindData() {
        // TODO: 3/22/2017 release data here    }
}

Tạo Adapter:

public class RecyclerViewAdapter extends RecyclerView.Adapter<CustomViewHolder> {
    
    private View.OnClickListener onItemClickListener;
    public void addData() {
        
        notifyDataSetChanged();    }

    public void clearData() {
        
        notifyDataSetChanged();    }

    public void setOnItemClickListener(View.OnClickListener onItemClickListener) {
        this.onItemClickListener = onItemClickListener;    }

    @Override    

public GroupViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        CustomViewHolder viewHolder = new CustomViewHolder

       (LayoutInflater.from(parent.getContext())

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

viewHolder.itemView.setOnClickListener(onItemClickListener);        

return viewHolder;    }

    @Override    

public void onBindViewHolder(CustomViewHolder holder, int position) {
        holder.bindData();    }

    @Override    

public int getItemCount() {
        return 0;    }

}

3. Xử lý RecyclerView trong Activity

private SwipeRefreshLayout swipeRefreshLayout;private RecyclerView recyclerView;

private RecyclerViewAdapter adapter;


swipeRefreshLayout = (SwipeRefreshLayout) 
findViewById(R.id.refresh_list);swipeRefreshLayout.
setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
    @Override    public void onRefresh() {
        refreshData();    }
});


recyclerView = (RecyclerView) findViewById(R.id.rcv_list);
recyclerView.setLayoutManager(new 
LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
adapter = new RecyclerViewAdapter();
adapter.setOnItemClickListener(new View.OnClickListener() {
    @Override    public void onClick(View v) {
        
    }
});
recyclerView.setAdapter(adapter);

4. Xử lý các sự kiện thêm, xóa, click, animation


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