RecyclerView Divider | Garis pembatas dalam list

Untuk membuat divider/batasan antar item dalam list yang menggunakan RecyclerView, tidak perlu membuatnya secara manual, cukup menggunakan class yang sudah disediakan oleh Android.

Caranya sebagai berikut :

1. Tambahkan RecyclerView pada layout.
   
   <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/content_main2" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:showIn="@layout/activity_main2"> <android.support.v7.widget.RecyclerView android:id="@+id/recycler_view" android:layout_width="match_parent" android:layout_height="match_parent"/> </RelativeLayout>

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   <?xml version="1.0" encoding="utf-8"?> <RelativeLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/content_main2"     android:layout_width="match_parent"     android:layout_height="match_parent"     app:layout_behavior="@string/appbar_scrolling_view_behavior"     tools:showIn="@layout/activity_main2">       <android.support.v7.widget.RecyclerView         android:id="@+id/recycler_view"         android:layout_width="match_parent"         android:layout_height="match_parent"/>   </RelativeLayout>

2. Lalu pada class activitynya
   
   public class Main2Activity extends AppCompatActivity { private RecyclerView mRecyclerView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main2); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); mRecyclerView = (RecyclerView)findViewById(R.id.recycler_view); mRecyclerView.setLayoutManager(new LinearLayoutManager(this));//Vertikal Layout Manager mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL)); } }

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   public class Main2Activity extends AppCompatActivity {       private RecyclerView mRecyclerView;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main2);         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);         setSupportActionBar(toolbar);           mRecyclerView = (RecyclerView)findViewById(R.id.recycler_view);         mRecyclerView.setLayoutManager(new LinearLayoutManager(this));//Vertikal Layout Manager         mRecyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));     }   }

   
   Yang perlu dicermati adalah, jika LinearLayoutManager diset vertikal maka DividerItemDecorationnya juga harus vertikal.

Hasil penambahan DividerItemDecoration tersebut akan menambahkan garis abu-abu untuk memisahkan antar item dalam list.