Android DataBinding - BindingAdapter

BindingAdapter

• BindingAdapters Class 생성

  예를 들어 RecyclerView의 Adapter를 BindingAdapter를 통해 xml파일에서 적용 가능

  • Java

    public class BindingAdapters {
        @BindingAdapter("bind:setAdapter")
        public static void setAdapter(RecyclerView recyclerView, ListRecyclerViewAdapter adapter) {
            recyclerView.setLayoutManager(new LinearLayoutManager(recyclerView.getContext()));
            recyclerView.setHasFixedSize(true);
            recyclerView.setAdapter(adapter);
        }
    }
  

  • Kotlin

    class BindingAdapter {
        companion object {
            @JvmStatic
            @BindingAdapter("bind:setAdapter")
            fun setAdapter(
                recyclerView: RecyclerView,
                adapter: ListRecyclerViewAdapter
            ) {
                recyclerView.layoutManager = LinearLayoutManager(recyclerView.context)
                recyclerView.setHasFixedSize(true)
                recyclerView.adapter = adapter
            }
        }
    }
  

  • xml

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        bind:setAdapter="@{viewModel.adapter}"
    />