【Android】ListFragmentとかいうのを使ってみる

src/com.example.listfragment/MainActivity.java

package com.example.listFragmentTest;

import com.example.listFragmentTest.R;
import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
  }
}

res/layout/activity_main.xml

<!--?xml version="1.0" encoding="utf-8"?-->
<linearlayout
  android:layout_height="match_parent"
  android:layout_width="match_parent"
  android:orientation="horizontal"
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools">
<fragment
  android:id="@+id/list_parent"
  android:layout_height="match_parent/"
  android:layout_weight="1"
  android:layout_width="0dp"
  class="com.example.listFragmentTest.ItemListFragment">
</fragment>
</linearlayout>

src/com.example.listfragment/ItemListFragment.java

package com.example.listFragmentTest;

import com.example.listFragmentTest.R;
import android.app.ListFragment;
import android.os.Bundle;
import android.widget.ArrayAdapter;

public class ItemListFragment extends ListFragment {
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
  super.onActivityCreated(savedInstanceState);
  ArrayAdapter adapter =
    ArrayAdapter.createFromResource(
    getActivity(),
    R.array.list,
    android.R.layout.simple_list_item_1);
  setListAdapter(adapter);
  }
}

res/layout/layout_list.xml

<!--?xml version="1.0" encoding="utf-8"?-->
<linearlayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="horizontal">
  <fragment
    android:id="@+id/list_child"
    class="com.example.listFragmentTest.ItemListFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/> 
  </fragment>
</linearlayout>

res/values/styles.xml

<!--?xml version="1.0" encoding="utf-8"?-->
<resources>
  <string name="app_name">
    listFragmentTest 
  </string>
    
  <string name="action_settings">
    Settings 
  </string>
    
  <string-array name="list">
    <item>a</item>
    <item>b</item>
    <item>c</item>
    <item>d</item>
  </string-array>
</resources>

で、様子は下の感じ。