The document introduces the RecyclerView which was introduced in Android Lollipop along with Material Design. It aims to reuse views by recycling and reusing them. Some advantages are support for animations when adding or removing items, automatic control of view reuse, and ability to change the layout manager to render views as lists or grids. The RecyclerView provides greater control over items on screen.

1. Introdução ao
RecyclerView

2. Desenvolvedor Mobile

3. Meu apps pessoais
https://goo.gl/sVpNU7https://goo.gl/Y7D9X

4. Surgiu no Android Lollipop junto com o Material Design.
w. Tem como objetivo reaproveitar as views, ele recicla e impleme

5. Vantagens
• Suporte a animações ao adicionar e remover itens da
lista;
• Controle automático da reutilização das views;
• Permitir alterar o gerenciador de layout para rendereizar
as views como listas, grids, etc.

6. compile ‘com.android.support:recyclerview-v7:23.1.0’

7. <android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
/res/layout/activity_recycler.xml

8. public class RecyclerActivity extends Activity {
RecyclerView mRecyclerView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recycler);
mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mRecyclerView.setAdapter(new BasicListAdapter(this));
}
}

9. erics, com isso os métodos onCreateViewHolder() e onBindVie

10. public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
private Context context;
private List<Object> list;
public onCreateViewHolder(Context context, List<Object> list) {…}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
//Cria uma subclasse de RecyclerView.ViewHolder
View view = LayoutInflater.from(context).inflate(R.layout.my_adapter, viewGroup, false);
MyViewHolder holder = new MyViewHolder(view);
return holder;
}
@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
//Receber o índice do elemento e atualiza as views que estão
//dentro do ViewHolder
}
}

11. public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
//onCreateViewHolder() e onBindViewHolder()
public static class MyViewHolder extends RecyclerView.ViewHolder {
public MyViewHolder(View view) {
//Implementação….
}
}
}

12. O RecyclerView provê
maior controle sobre os
itens na tela

13. @Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
String name = list.get(position);
textViewNome.setText(mDataset.get(position));
textViewNome.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
remove(name);
}
});
}

14. Obrigado
@RodrigoAmora
rodrigo.amora.freitas@gmail.com