PreferenceFragment example for Android 3.0 (HoneyComb)

PreferenceFragment was introduce in Android 3.0 (HoneyComb), API level 11.

PreferenceFragment example

Create /res/xml/preferences.xml to define our preferences:

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    
    <PreferenceCategory
        android:title="PreferenceCategory A">
        <CheckBoxPreference
            android:key="PREF_CHECKBOX"
            android:title="Title"
            android:summary="summary" />
    </PreferenceCategory>

</PreferenceScreen>

PrefFragment.java

package com.example.androidpreferencefragment;

import android.os.Bundle;
import android.preference.PreferenceFragment;

public class PrefFragment extends PreferenceFragment {

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  addPreferencesFromResource(R.xml.preferences);
 }

}

PrefActivity.java

package com.example.androidpreferencefragment;

import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.os.Bundle;

public class PrefActivity extends Activity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  
  PrefFragment prefFragment = new PrefFragment();
  FragmentManager fragmentManager = getFragmentManager();
  FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
  fragmentTransaction.replace(android.R.id.content, prefFragment);
  fragmentTransaction.commit();
 }

}

MainActivity.java

package com.example.androidpreferencefragment;

import android.os.Bundle;
import android.preference.PreferenceManager;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
 
 Button buttonSetPreference;
 TextView settingCheckBox;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  buttonSetPreference = (Button)findViewById(R.id.setpreference);
  settingCheckBox = (TextView)findViewById(R.id.setting_checkbox);
  
  buttonSetPreference.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    Intent intentSetPref = new Intent(getApplicationContext(), PrefActivity.class);
    startActivityForResult(intentSetPref, 0);
   }});
 }

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  
  SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
  Boolean prefCheckBox = sharedPreferences.getBoolean("PREF_CHECKBOX", false);
  settingCheckBox.setText("CHECKBOX preference = " + prefCheckBox.toString());
 }

}

Layout, /res/layout/activity_main.xml

<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/setpreference"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Set Preference" />
    <TextView
        android:id="@+id/setting_checkbox"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

Also need to modify AndroidManifest.xml to add activity of PrefActivity.

Next:
- Implement ListPreference in PreferenceFragment