public class ExampleFragment extends Fragment {

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) {
    return inflater.inflate(R.layout.example_fragment, container, false);
  }  
}

<?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" >

  <EditText android:id="@+id/edit_message"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:hint="@string/edit_message" />

  <Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/button_send"
    android:onClick="sendMessage" />

</LinearLayout>

public class FragmentLayoutTest extends Activity
{
  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main); 
  } 
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  >
  <TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/fragment_intro"
    />

  <fragment android:name="com.skw.fragmentlayouttest.ExampleFragment"
    android:id="@+id/frag_example"
    android:layout_weight="1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

</LinearLayout>

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

  <TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/fragment_intro"
    />

  <FrameLayout
    android:id="@+id/frag_example"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

</LinearLayout>

public class FragmentLayoutTest extends Activity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    // 获取FragmentManager
    FragmentManager fragmentManager = getFragmentManager();
    // 获取FragmentTransaction    
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

    // 获取ExampleFragment
    ExampleFragment fragment = new ExampleFragment();
    // 将fragment添加到容器frag_example中
    fragmentTransaction.add(R.id.frag_example, fragment);
    fragmentTransaction.commit();
  }
}

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

  <PreferenceCategory
    android:title="PreferenceCategory A">

    <!-- 
     (01) android:key是Preferece的id
     (02) android:title是Preferece的大标题
     (03) android:summary是Preferece的小标题
     -->
    <CheckBoxPreference
      android:key="checkbox_preference"
      android:title="title_checkbox_preference"
      android:summary="summary_checkbox_preference" />

  </PreferenceCategory>

  <PreferenceCategory
    android:title="PreferenceCategory B">

    <!-- 
     android:dialogTitle是对话框的标题
     android:defaultValue是默认值
     -->
    <EditTextPreference
      android:key="edittext_preference"
      android:title="title_edittext_preference"
      android:summary="null" 
      android:dialogTitle="dialog_title_edittext_preference"
      android:defaultValue="null" />

    <!-- 
     android:entries是列表中各项的说明
     android:entryValues是列表中各项的值
     -->
    <ListPreference 
      android:key="list_preference" 
      android:dialogTitle="Choose font" 
      android:entries="@array/pref_font_types" 
      android:entryValues="@array/pref_font_types_values" 
      android:summary="sans" 
      android:title="Font" 
      android:defaultValue="sans"/> 
  </PreferenceCategory>


  <PreferenceCategory
    android:title="PreferenceCategory C">

    <SwitchPreference
      android:key="switch_preferece"
      android:title="title_switch_preferece"
      android:defaultValue="true" />

    <SeekBarPreference
      android:key="seekbar_preference"
      android:title="title_seekbar_preference"
      android:max="100"
      android:defaultValue="30" />

  </PreferenceCategory>

</PreferenceScreen>

public class PrefsFragment extends PreferenceFragment 
  implements SharedPreferences.OnSharedPreferenceChangeListener, Preference.OnPreferenceClickListener {
  private static final String TAG = "##PrefsFragment##";

  private static final String CHECK_PREFERENCE  = "checkbox_preference";
  private static final String EDITTEXT_PREFERENCE = "edittext_preference";
  private static final String LIST_PREFERENCE   = "list_preference";
  private static final String SWITCH_PREFERENCE  = "switch_preferece";
  private static final String SEEKBAR_PREFERENCE = "seekbar_preference";

  private Preference mEditText;
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Load the preferences from an XML resource
    addPreferencesFromResource(R.xml.preferences);

    mEditText = (Preference) findPreference(EDITTEXT_PREFERENCE);
    mEditText.setOnPreferenceClickListener(this);
  }

  @Override
  public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
    // Set summary to be the user-description for the selected value
    Preference connectionPref = findPreference(key);
    if (key.equals(CHECK_PREFERENCE)) {
      boolean checked = sharedPreferences.getBoolean(key, false);
      Log.d(TAG, "CheckBox: checked="+checked);
    } else if (key.equals(EDITTEXT_PREFERENCE)) {
      String value = sharedPreferences.getString(key, "");
      connectionPref.setSummary(value);
      Log.d(TAG, "EditText: value="+value);
    } else if (key.equals(LIST_PREFERENCE)) {
      String value = sharedPreferences.getString(key, "");
      connectionPref.setSummary(value);
      Log.d(TAG, "List: value="+value);
    } else if (key.equals(SWITCH_PREFERENCE)) {
      boolean checked = sharedPreferences.getBoolean(key, false);
      Log.d(TAG, "Switch: checked="+checked);
    } else if (key.equals(SEEKBAR_PREFERENCE)) {
      int value = sharedPreferences.getInt(key, 0);
      Log.d(TAG, "Seekbar: value="+value);
    } 
  }

  @Override
  public boolean onPreferenceClick(Preference preference) {
    SharedPreferences sharedPreferences = preference.getSharedPreferences();
    String value = sharedPreferences.getString(preference.getKey(), "");
    Log.d(TAG, "onPreferenceClick: value="+value);

    return true;
  }

  @Override
  public void onResume() {
    super.onResume();
    getPreferenceManager().getSharedPreferences().registerOnSharedPreferenceChangeListener(this);

  }

  @Override
  public void onPause() {
    getPreferenceManager().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this);
    super.onPause();
  }
}

public class FragmentTest extends Activity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //setContentView(R.layout.main);

    getFragmentManager().beginTransaction().replace(android.R.id.content, 
        new PrefsFragment()).commit(); 
  }
}