Custom android ViewGroup

myitem_view.xml

<?xml version="1.0" encoding="utf-8"?>
<com.example.MyItemView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/item_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/item_description"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</com.example.MyItemView>

MyItemView.java

package com.example;

public class MyItemView extends LinearLayout {

  public static final MyItem EMPTY = new MyItem(null);

  private TextView mTitleView;
  private TextView mDescriptionView;

  private MyItem item = EMPTY;

/** ... */

  @Override
  protected void onFinishInflate() {
    super.onFinishInflate();

    mTitleView       = (TextView) findViewById(R.id.item_title);
    mDescriptionView = (TextView) findViewById(R.id.item_description);
  }
 
  public void showItem(MyItem item) {
    this.item = (item != null ? item : EMPTY);
    String title        = item.getTitle();
    String description  = item.getDescription();
    
    // Either we implement a default text in EMPTY object or we return null to use default in layout
    if (title != null) {
      titleView.setText(title);
    } 
    
    // as above but we hide description if empty
    if (!TextUtils.isEmpty(description)) {
      descriptionView.setText(description);
      descriptionView.setVisibility(View.VISIBLE);
    } else {
      descriptionView.setVisibility(View.GONE);
    }
  }
}