Beginning of a PreferenceFragment implementation that will work back to Android 1.6

PreferenceFragment.java

package android.support.v4.preference;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.preference.Preference;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

public abstract class PreferenceFragment extends Fragment {
	private static final int FIRST_REQUEST_CODE = 100;
	private static final int MSG_BIND_PREFERENCES = 1;
	private static final String PREFERENCES_TAG = "android:preferences";
	
	private Handler mHandler;
	private boolean mHavePrefs;
	private boolean mInitDone;
	private ListView mList;
	private PreferenceManager mPreferenceManager;
	private final Runnable mRequestFocus;

	public PreferenceFragment() {
	// PreferenceFragment.1 local1 = new PreferenceFragment.1(this);
	// this.mHandler = local1;
	// PreferenceFragment.2 local2 = new PreferenceFragment.2(this);
	// this.mRequestFocus = local2;
		mRequestFocus = null;
	}

	private void bindPreferences() {
		PreferenceScreen localPreferenceScreen = getPreferenceScreen();
		if (localPreferenceScreen != null) {
			ListView localListView = getListView();
			localPreferenceScreen.bind(localListView);
		}
	}

	private void ensureList() {
		if (mList == null) {
			View view = getView();
			if (view == null) {
				throw new IllegalStateException("Content view not yet created");
			}
			
			View listView = view.findViewById(android.R.id.list);
			if (!(listView instanceof ListView)) {
				throw new RuntimeException("Content has view with id attribute 'android.R.id.list' that is not a ListView class");
			}
			
			mList = (ListView)listView;
			if (mList == null) {
				throw new RuntimeException("Your content must have a ListView whose id attribute is 'android.R.id.list'");
			}
			
			mHandler.post(mRequestFocus);
		}
	}

	private void postBindPreferences() {
		if (mHandler.hasMessages(MSG_BIND_PREFERENCES)) {
			mHandler.obtainMessage(MSG_BIND_PREFERENCES).sendToTarget();
		}
	}

	private void requirePreferenceManager() {
		if (this.mPreferenceManager == null) {
			throw new RuntimeException("This should be called after super.onCreate.");
		}
	}

	public void addPreferencesFromIntent(Intent intent) {
		requirePreferenceManager();
		PreferenceScreen screen = mPreferenceManager.inflateFromIntent(intent, getPreferenceScreen());
		setPreferenceScreen(screen);
	}

	public void addPreferencesFromResource(int resId) {
		requirePreferenceManager();
		PreferenceScreen screen = mPreferenceManager.inflateFromResource(getActivity(), resId, getPreferenceScreen());
		setPreferenceScreen(screen);
	}

	public Preference findPreference(CharSequence key) {
		if (mPreferenceManager == null) {
			return null;
		}
		return mPreferenceManager.findPreference(key);
	}

	public ListView getListView() {
		ensureList();
		return mList;
	}

	public PreferenceManager getPreferenceManager() {
		return mPreferenceManager;
	}

	public PreferenceScreen getPreferenceScreen() {
		return mPreferenceManager.getPreferenceScreen();
	}

	public void onActivityCreated(Bundle savedInstanceState) {
		super.onActivityCreated(savedInstanceState);
		getListView().setScrollBarStyle(0);
		if (mHavePrefs) {
			bindPreferences();
		}
		mInitDone = true;
		if (savedInstanceState != null) {
			Bundle localBundle = savedInstanceState.getBundle(PREFERENCES_TAG);
			if (localBundle != null) {
				PreferenceScreen screen = getPreferenceScreen();
				if (screen != null) {
					screen.restoreHierarchyState(localBundle);
				}
			}
		}
	}

	public void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		mPreferenceManager.dispatchActivityResult(requestCode, resultCode, data);
	}

	public void onCreate(Bundle paramBundle) {
		super.onCreate(paramBundle);
		mPreferenceManager = new PreferenceManager(getActivity(), FIRST_REQUEST_CODE);
		mPreferenceManager.setFragment(this);
		mPreferenceManager.setOnPreferenceTreeClickListener(this);
	}

	public View onCreateView(LayoutInflater paramLayoutInflater, ViewGroup paramViewGroup, Bundle paramBundle) {
		return paramLayoutInflater.inflate(17367145, paramViewGroup, 0);
	}

	public void onDestroy() {
		super.onDestroy();
		mPreferenceManager.dispatchActivityDestroy();
		mPreferenceManager.setOnPreferenceTreeClickListener(null);
	}

	public void onDestroyView() {
		mList = null;
		mHandler.removeCallbacks(mRequestFocus);
		mHandler.removeMessages(MSG_BIND_PREFERENCES);
		super.onDestroyView();
	}

	public boolean onPreferenceTreeClick(PreferenceScreen screen, Preference preference) {
		if ((preference.getFragment() != null) && ((getActivity() instanceof OnPreferenceStartFragmentCallback))) {
			return ((OnPreferenceStartFragmentCallback)getActivity()).onPreferenceStartFragment(this, preference);
		}
		return false;
	}

	public void onSaveInstanceState(Bundle bundle) {
		super.onSaveInstanceState(bundle);
		PreferenceScreen screen = getPreferenceScreen();
		if (screen != null) {
			Bundle localBundle = new Bundle();
			screen.saveHierarchyState(localBundle);
			bundle.putBundle(PREFERENCES_TAG, localBundle);
		}
	}

	public void onStop() {
		super.onStop();
		mPreferenceManager.dispatchActivityStop();
	}

	public void setPreferenceScreen(PreferenceScreen screen) {
		if ((mPreferenceManager.setPreferences(screen)) && (screen != null)) {
			mHavePrefs = true;
			if (mInitDone) {
				postBindPreferences();
			}
		}
	}

	public abstract interface OnPreferenceStartFragmentCallback {
		public abstract boolean onPreferenceStartFragment(PreferenceFragment paramPreferenceFragment, Preference paramPreference);
	}
}

Hello!

Could you please help me with this?

How could I put this class in use? Tried to copy it in my own project, but there are some calls to PreferenceManager methods, which do not exist the Android API! What I got is that I should include recompile the support.v4 library and include this class, right?

Thanks in advance!

This is the implementation of actionbarsherlock, you dont need to include this file in your project, just wait for stable release.
Jake, thank you for your work.

when will pack into actionbarsherlock ? i think i need it now .

Any update on this? Really need it. :P