src/com/android/settings/quicklaunch/QuickLaunchSettings.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2008 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.quicklaunch;

 import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.database.ContentObserver;
 import android.database.Cursor;
 import android.os.Bundle;
 import android.os.Handler;
 import android.preference.Preference;
 import android.preference.PreferenceActivity;
 import android.preference.PreferenceGroup;
 import android.preference.PreferenceScreen;
 import android.provider.Settings.Bookmarks;
 import android.util.Log;
 import android.util.SparseArray;
 import android.util.SparseBooleanArray;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 import android.view.View;
 import android.widget.AdapterView;

 import com.android.settings.R;

 import java.net.URISyntaxException;

 /**
  * Settings activity for quick launch.
  * <p>
  * Shows a list of possible shortcuts, the current application each is bound to,
  * and allows choosing a new bookmark for a shortcut.
  */
 public class QuickLaunchSettings extends PreferenceActivity implements
         AdapterView.OnItemLongClickListener, DialogInterface.OnClickListener {

     private static final String TAG = "QuickLaunchSettings";

     private static final String KEY_SHORTCUT_CATEGORY = "shortcut_category";

     private static final int DIALOG_CLEAR_SHORTCUT = 0;

     private static final int REQUEST_PICK_BOOKMARK = 1;

     private static final int COLUMN_SHORTCUT = 0;
     private static final int COLUMN_TITLE = 1;
     private static final int COLUMN_INTENT = 2;
     private static final String[] sProjection = new String[] {
             Bookmarks.SHORTCUT, Bookmarks.TITLE, Bookmarks.INTENT
     };
     private static final String sShortcutSelection = Bookmarks.SHORTCUT + "=?";

     private Handler mUiHandler = new Handler();

     private static final String DEFAULT_BOOKMARK_FOLDER = "@quicklaunch";
     /** Cursor for Bookmarks provider. */
     private Cursor mBookmarksCursor;
     /** Listens for changes to Bookmarks provider. */
     private BookmarksObserver mBookmarksObserver;
     /** Used to keep track of which shortcuts have bookmarks. */
     private SparseBooleanArray mBookmarkedShortcuts;

     /** Preference category to hold the shortcut preferences. */
     private PreferenceGroup mShortcutGroup;
     /** Mapping of a shortcut to its preference. */
     private SparseArray<ShortcutPreference> mShortcutToPreference;

     /** The bookmark title of the shortcut that is being cleared. */
     private CharSequence mClearDialogBookmarkTitle;
     private static final String CLEAR_DIALOG_BOOKMARK_TITLE = "CLEAR_DIALOG_BOOKMARK_TITLE";
     /** The shortcut that is being cleared. */
     private char mClearDialogShortcut;
     private static final String CLEAR_DIALOG_SHORTCUT = "CLEAR_DIALOG_SHORTCUT";

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         addPreferencesFromResource(R.xml.quick_launch_settings);

         mShortcutGroup = (PreferenceGroup) findPreference(KEY_SHORTCUT_CATEGORY);
         mShortcutToPreference = new SparseArray<ShortcutPreference>();
         mBookmarksObserver = new BookmarksObserver(mUiHandler);
         initShortcutPreferences();
         mBookmarksCursor = managedQuery(Bookmarks.CONTENT_URI, sProjection, null, null);
         getListView().setOnItemLongClickListener(this);
     }

     @Override
     protected void onResume() {
         super.onResume();
         getContentResolver().registerContentObserver(Bookmarks.CONTENT_URI, true,
                 mBookmarksObserver);
         refreshShortcuts();
     }

     @Override
     protected void onPause() {
         super.onPause();
         getContentResolver().unregisterContentObserver(mBookmarksObserver);
     }

     @Override
     protected void onRestoreInstanceState(Bundle state) {
         super.onRestoreInstanceState(state);

         // Restore the clear dialog's info
         mClearDialogBookmarkTitle = state.getString(CLEAR_DIALOG_BOOKMARK_TITLE);
         mClearDialogShortcut = (char) state.getInt(CLEAR_DIALOG_SHORTCUT, 0);
     }

     @Override
     protected void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);

         // Save the clear dialog's info
         outState.putCharSequence(CLEAR_DIALOG_BOOKMARK_TITLE, mClearDialogBookmarkTitle);
         outState.putInt(CLEAR_DIALOG_SHORTCUT, mClearDialogShortcut);
     }

     @Override
     protected Dialog onCreateDialog(int id) {
         switch (id) {

             case DIALOG_CLEAR_SHORTCUT: {
                 // Create the dialog for clearing a shortcut
                 return new AlertDialog.Builder(this)
                         .setTitle(getString(R.string.quick_launch_clear_dialog_title))
                         .setIconAttribute(android.R.attr.alertDialogIcon)
                         .setMessage(getString(R.string.quick_launch_clear_dialog_message,
                                 mClearDialogShortcut, mClearDialogBookmarkTitle))
                         .setPositiveButton(R.string.quick_launch_clear_ok_button, this)
                         .setNegativeButton(R.string.quick_launch_clear_cancel_button, this)
                         .create();
             }
         }

         return super.onCreateDialog(id);
     }

     @Override
     protected void onPrepareDialog(int id, Dialog dialog) {
         switch (id) {

             case DIALOG_CLEAR_SHORTCUT: {
                 AlertDialog alertDialog = (AlertDialog) dialog;
                 alertDialog.setMessage(getString(R.string.quick_launch_clear_dialog_message,
                         mClearDialogShortcut, mClearDialogBookmarkTitle));
             }
         }
     }

     private void showClearDialog(ShortcutPreference pref) {

         if (!pref.hasBookmark()) return;

         mClearDialogBookmarkTitle = pref.getTitle();
         mClearDialogShortcut = pref.getShortcut();
         showDialog(DIALOG_CLEAR_SHORTCUT);
     }

     public void onClick(DialogInterface dialog, int which) {
         if (mClearDialogShortcut > 0 && which == AlertDialog.BUTTON_POSITIVE) {
             // Clear the shortcut
             clearShortcut(mClearDialogShortcut);
         }
         mClearDialogBookmarkTitle = null;
         mClearDialogShortcut = 0;
     }

     private void clearShortcut(char shortcut) {
         getContentResolver().delete(Bookmarks.CONTENT_URI, sShortcutSelection,
                 new String[] { String.valueOf((int) shortcut) });
     }

     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
         if (!(preference instanceof ShortcutPreference)) return false;

         // Open the screen to pick a bookmark for this shortcut
         ShortcutPreference pref = (ShortcutPreference) preference;
         Intent intent = new Intent(this, BookmarkPicker.class);
         intent.putExtra(BookmarkPicker.EXTRA_SHORTCUT, pref.getShortcut());
         startActivityForResult(intent, REQUEST_PICK_BOOKMARK);

         return true;
     }

     public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

         // Open the clear shortcut dialog
         Preference pref = (Preference) getPreferenceScreen().getRootAdapter().getItem(position);
         if (!(pref instanceof ShortcutPreference)) return false;
         showClearDialog((ShortcutPreference) pref);
         return true;
     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         if (resultCode != RESULT_OK) {
             return;
         }

         if (requestCode == REQUEST_PICK_BOOKMARK) {

             // Returned from the 'pick bookmark for this shortcut' screen
             if (data == null) {
                 Log.w(TAG, "Result from bookmark picker does not have an intent.");
                 return;
             }

             char shortcut = data.getCharExtra(BookmarkPicker.EXTRA_SHORTCUT, (char) 0);
             updateShortcut(shortcut, data);

         } else {
             super.onActivityResult(requestCode, resultCode, data);
         }
     }

     private void updateShortcut(char shortcut, Intent intent) {
         // Update the bookmark for a shortcut
         // Pass an empty title so it gets resolved each time this bookmark is
         // displayed (since the locale could change after we insert into the provider).
         Bookmarks.add(getContentResolver(), intent, "", DEFAULT_BOOKMARK_FOLDER, shortcut, 0);
     }

     private ShortcutPreference getOrCreatePreference(char shortcut) {
         ShortcutPreference pref = mShortcutToPreference.get(shortcut);
         if (pref != null) {
             return pref;
         } else {
             Log.w(TAG, "Unknown shortcut '" + shortcut + "', creating preference anyway");
             return createPreference(shortcut);
         }
     }

     private ShortcutPreference createPreference(char shortcut) {
         ShortcutPreference pref = new ShortcutPreference(QuickLaunchSettings.this, shortcut);
         mShortcutGroup.addPreference(pref);
         mShortcutToPreference.put(shortcut, pref);
         return pref;
     }

     private void initShortcutPreferences() {

         /** Whether the shortcut has been seen already.  The array index is the shortcut. */
         SparseBooleanArray shortcutSeen = new SparseBooleanArray();
         KeyCharacterMap keyMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);

         // Go through all the key codes and create a preference for the appropriate keys
         for (int keyCode = KeyEvent.getMaxKeyCode() - 1; keyCode >= 0; keyCode--) {
             // Get the label for the primary char on the key that produces this key code
             char shortcut = (char) Character.toLowerCase(keyMap.getDisplayLabel(keyCode));
             if (shortcut == 0 || shortcutSeen.get(shortcut, false)) continue;
             // TODO: need a to tell if the current keyboard can produce this key code, for now
             // only allow the letter or digits
             if (!Character.isLetterOrDigit(shortcut)) continue;
             shortcutSeen.put(shortcut, true);

             createPreference(shortcut);
         }
     }

     private synchronized void refreshShortcuts() {
         Cursor c = mBookmarksCursor;
         if (c == null) {
             // Haven't finished querying yet
             return;
         }

         if (!c.requery()) {
             Log.e(TAG, "Could not requery cursor when refreshing shortcuts.");
             return;
         }

         /**
          * We use the previous bookmarked shortcuts array to filter out those
          * shortcuts that had bookmarks before this method call, and don't after
          * (so we can set the preferences to be without bookmarks).
          */
         SparseBooleanArray noLongerBookmarkedShortcuts = mBookmarkedShortcuts;
         SparseBooleanArray newBookmarkedShortcuts = new SparseBooleanArray();
         while (c.moveToNext()) {
             char shortcut = Character.toLowerCase((char) c.getInt(COLUMN_SHORTCUT));
             if (shortcut == 0) continue;

             ShortcutPreference pref = getOrCreatePreference(shortcut);
             CharSequence title = Bookmarks.getTitle(this, c);

             /*
              * The title retrieved from Bookmarks.getTitle() will be in
              * the original boot locale, not the current locale.
              * Try to look up a localized title from the PackageManager.
              */
             int intentColumn = c.getColumnIndex(Bookmarks.INTENT);
             String intentUri = c.getString(intentColumn);
             PackageManager packageManager = getPackageManager();
             try {
                 Intent intent = Intent.parseUri(intentUri, 0);
                 ResolveInfo info = packageManager.resolveActivity(intent, 0);
                 if (info != null) {
                     title = info.loadLabel(packageManager);
                 }
             } catch (URISyntaxException e) {
                 // Just use the non-localized title, then.
             }

             pref.setTitle(title);
             pref.setSummary(getString(R.string.quick_launch_shortcut,
                     String.valueOf(shortcut)));
             pref.setHasBookmark(true);

             newBookmarkedShortcuts.put(shortcut, true);
             if (noLongerBookmarkedShortcuts != null) {
                 // After this loop, the shortcuts with value true in this array
                 // will no longer have bookmarks
                 noLongerBookmarkedShortcuts.put(shortcut, false);
             }
         }

         if (noLongerBookmarkedShortcuts != null) {
             for (int i = noLongerBookmarkedShortcuts.size() - 1; i >= 0; i--) {
                 if (noLongerBookmarkedShortcuts.valueAt(i)) {
                     // True, so there is no longer a bookmark for this shortcut
                     char shortcut = (char) noLongerBookmarkedShortcuts.keyAt(i);
                     ShortcutPreference pref = mShortcutToPreference.get(shortcut);
                     if (pref != null) {
                         pref.setHasBookmark(false);
                     }
                 }
             }
         }

         mBookmarkedShortcuts = newBookmarkedShortcuts;

         c.deactivate();
     }

     private class BookmarksObserver extends ContentObserver {

         public BookmarksObserver(Handler handler) {
             super(handler);
         }

         @Override
         public void onChange(boolean selfChange) {
             super.onChange(selfChange);

             refreshShortcuts();
         }
     }
 }
	/*
	* Copyright (C) 2008 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.quicklaunch;

	import android.app.AlertDialog;
	import android.app.Dialog;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.pm.ResolveInfo;
	import android.database.ContentObserver;
	import android.database.Cursor;
	import android.os.Bundle;
	import android.os.Handler;
	import android.preference.Preference;
	import android.preference.PreferenceActivity;
	import android.preference.PreferenceGroup;
	import android.preference.PreferenceScreen;
	import android.provider.Settings.Bookmarks;
	import android.util.Log;
	import android.util.SparseArray;
	import android.util.SparseBooleanArray;
	import android.view.KeyCharacterMap;
	import android.view.KeyEvent;
	import android.view.View;
	import android.widget.AdapterView;

	import com.android.settings.R;

	import java.net.URISyntaxException;

	/**
	* Settings activity for quick launch.
	* <p>
	* Shows a list of possible shortcuts, the current application each is bound to,
	* and allows choosing a new bookmark for a shortcut.
	*/
	public class QuickLaunchSettings extends PreferenceActivity implements
	AdapterView.OnItemLongClickListener, DialogInterface.OnClickListener {

	private static final String TAG = "QuickLaunchSettings";

	private static final String KEY_SHORTCUT_CATEGORY = "shortcut_category";

	private static final int DIALOG_CLEAR_SHORTCUT = 0;

	private static final int REQUEST_PICK_BOOKMARK = 1;

	private static final int COLUMN_SHORTCUT = 0;
	private static final int COLUMN_TITLE = 1;
	private static final int COLUMN_INTENT = 2;
	private static final String[] sProjection = new String[] {
	Bookmarks.SHORTCUT, Bookmarks.TITLE, Bookmarks.INTENT
	};
	private static final String sShortcutSelection = Bookmarks.SHORTCUT + "=?";

	private Handler mUiHandler = new Handler();

	private static final String DEFAULT_BOOKMARK_FOLDER = "@quicklaunch";
	/** Cursor for Bookmarks provider. */
	private Cursor mBookmarksCursor;
	/** Listens for changes to Bookmarks provider. */
	private BookmarksObserver mBookmarksObserver;
	/** Used to keep track of which shortcuts have bookmarks. */
	private SparseBooleanArray mBookmarkedShortcuts;

	/** Preference category to hold the shortcut preferences. */
	private PreferenceGroup mShortcutGroup;
	/** Mapping of a shortcut to its preference. */
	private SparseArray<ShortcutPreference> mShortcutToPreference;

	/** The bookmark title of the shortcut that is being cleared. */
	private CharSequence mClearDialogBookmarkTitle;
	private static final String CLEAR_DIALOG_BOOKMARK_TITLE = "CLEAR_DIALOG_BOOKMARK_TITLE";
	/** The shortcut that is being cleared. */
	private char mClearDialogShortcut;
	private static final String CLEAR_DIALOG_SHORTCUT = "CLEAR_DIALOG_SHORTCUT";

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	addPreferencesFromResource(R.xml.quick_launch_settings);

	mShortcutGroup = (PreferenceGroup) findPreference(KEY_SHORTCUT_CATEGORY);
	mShortcutToPreference = new SparseArray<ShortcutPreference>();
	mBookmarksObserver = new BookmarksObserver(mUiHandler);
	initShortcutPreferences();
	mBookmarksCursor = managedQuery(Bookmarks.CONTENT_URI, sProjection, null, null);
	getListView().setOnItemLongClickListener(this);
	}

	@Override
	protected void onResume() {
	super.onResume();
	getContentResolver().registerContentObserver(Bookmarks.CONTENT_URI, true,
	mBookmarksObserver);
	refreshShortcuts();
	}

	@Override
	protected void onPause() {
	super.onPause();
	getContentResolver().unregisterContentObserver(mBookmarksObserver);
	}

	@Override
	protected void onRestoreInstanceState(Bundle state) {
	super.onRestoreInstanceState(state);

	// Restore the clear dialog's info
	mClearDialogBookmarkTitle = state.getString(CLEAR_DIALOG_BOOKMARK_TITLE);
	mClearDialogShortcut = (char) state.getInt(CLEAR_DIALOG_SHORTCUT, 0);
	}

	@Override
	protected void onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);

	// Save the clear dialog's info
	outState.putCharSequence(CLEAR_DIALOG_BOOKMARK_TITLE, mClearDialogBookmarkTitle);
	outState.putInt(CLEAR_DIALOG_SHORTCUT, mClearDialogShortcut);
	}

	@Override
	protected Dialog onCreateDialog(int id) {
	switch (id) {

	case DIALOG_CLEAR_SHORTCUT: {
	// Create the dialog for clearing a shortcut
	return new AlertDialog.Builder(this)
	.setTitle(getString(R.string.quick_launch_clear_dialog_title))
	.setIconAttribute(android.R.attr.alertDialogIcon)
	.setMessage(getString(R.string.quick_launch_clear_dialog_message,
	mClearDialogShortcut, mClearDialogBookmarkTitle))
	.setPositiveButton(R.string.quick_launch_clear_ok_button, this)
	.setNegativeButton(R.string.quick_launch_clear_cancel_button, this)
	.create();
	}
	}

	return super.onCreateDialog(id);
	}

	@Override
	protected void onPrepareDialog(int id, Dialog dialog) {
	switch (id) {

	case DIALOG_CLEAR_SHORTCUT: {
	AlertDialog alertDialog = (AlertDialog) dialog;
	alertDialog.setMessage(getString(R.string.quick_launch_clear_dialog_message,
	mClearDialogShortcut, mClearDialogBookmarkTitle));
	}
	}
	}

	private void showClearDialog(ShortcutPreference pref) {

	if (!pref.hasBookmark()) return;

	mClearDialogBookmarkTitle = pref.getTitle();
	mClearDialogShortcut = pref.getShortcut();
	showDialog(DIALOG_CLEAR_SHORTCUT);
	}

	public void onClick(DialogInterface dialog, int which) {
	if (mClearDialogShortcut > 0 && which == AlertDialog.BUTTON_POSITIVE) {
	// Clear the shortcut
	clearShortcut(mClearDialogShortcut);
	}
	mClearDialogBookmarkTitle = null;
	mClearDialogShortcut = 0;
	}

	private void clearShortcut(char shortcut) {
	getContentResolver().delete(Bookmarks.CONTENT_URI, sShortcutSelection,
	new String[] { String.valueOf((int) shortcut) });
	}

	@Override
	public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
	if (!(preference instanceof ShortcutPreference)) return false;

	// Open the screen to pick a bookmark for this shortcut
	ShortcutPreference pref = (ShortcutPreference) preference;
	Intent intent = new Intent(this, BookmarkPicker.class);
	intent.putExtra(BookmarkPicker.EXTRA_SHORTCUT, pref.getShortcut());
	startActivityForResult(intent, REQUEST_PICK_BOOKMARK);

	return true;
	}

	public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

	// Open the clear shortcut dialog
	Preference pref = (Preference) getPreferenceScreen().getRootAdapter().getItem(position);
	if (!(pref instanceof ShortcutPreference)) return false;
	showClearDialog((ShortcutPreference) pref);
	return true;
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	if (resultCode != RESULT_OK) {
	return;
	}

	if (requestCode == REQUEST_PICK_BOOKMARK) {

	// Returned from the 'pick bookmark for this shortcut' screen
	if (data == null) {
	Log.w(TAG, "Result from bookmark picker does not have an intent.");
	return;
	}

	char shortcut = data.getCharExtra(BookmarkPicker.EXTRA_SHORTCUT, (char) 0);
	updateShortcut(shortcut, data);

	} else {
	super.onActivityResult(requestCode, resultCode, data);
	}
	}

	private void updateShortcut(char shortcut, Intent intent) {
	// Update the bookmark for a shortcut
	// Pass an empty title so it gets resolved each time this bookmark is
	// displayed (since the locale could change after we insert into the provider).
	Bookmarks.add(getContentResolver(), intent, "", DEFAULT_BOOKMARK_FOLDER, shortcut, 0);
	}

	private ShortcutPreference getOrCreatePreference(char shortcut) {
	ShortcutPreference pref = mShortcutToPreference.get(shortcut);
	if (pref != null) {
	return pref;
	} else {
	Log.w(TAG, "Unknown shortcut '" + shortcut + "', creating preference anyway");
	return createPreference(shortcut);
	}
	}

	private ShortcutPreference createPreference(char shortcut) {
	ShortcutPreference pref = new ShortcutPreference(QuickLaunchSettings.this, shortcut);
	mShortcutGroup.addPreference(pref);
	mShortcutToPreference.put(shortcut, pref);
	return pref;
	}

	private void initShortcutPreferences() {

	/** Whether the shortcut has been seen already. The array index is the shortcut. */
	SparseBooleanArray shortcutSeen = new SparseBooleanArray();
	KeyCharacterMap keyMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);

	// Go through all the key codes and create a preference for the appropriate keys
	for (int keyCode = KeyEvent.getMaxKeyCode() - 1; keyCode >= 0; keyCode--) {
	// Get the label for the primary char on the key that produces this key code
	char shortcut = (char) Character.toLowerCase(keyMap.getDisplayLabel(keyCode));
	if (shortcut == 0 \|\| shortcutSeen.get(shortcut, false)) continue;
	// TODO: need a to tell if the current keyboard can produce this key code, for now
	// only allow the letter or digits
	if (!Character.isLetterOrDigit(shortcut)) continue;
	shortcutSeen.put(shortcut, true);

	createPreference(shortcut);
	}
	}

	private synchronized void refreshShortcuts() {
	Cursor c = mBookmarksCursor;
	if (c == null) {
	// Haven't finished querying yet
	return;
	}

	if (!c.requery()) {
	Log.e(TAG, "Could not requery cursor when refreshing shortcuts.");
	return;
	}

	/**
	* We use the previous bookmarked shortcuts array to filter out those
	* shortcuts that had bookmarks before this method call, and don't after
	* (so we can set the preferences to be without bookmarks).
	*/
	SparseBooleanArray noLongerBookmarkedShortcuts = mBookmarkedShortcuts;
	SparseBooleanArray newBookmarkedShortcuts = new SparseBooleanArray();
	while (c.moveToNext()) {
	char shortcut = Character.toLowerCase((char) c.getInt(COLUMN_SHORTCUT));
	if (shortcut == 0) continue;

	ShortcutPreference pref = getOrCreatePreference(shortcut);
	CharSequence title = Bookmarks.getTitle(this, c);

	/*
	* The title retrieved from Bookmarks.getTitle() will be in
	* the original boot locale, not the current locale.
	* Try to look up a localized title from the PackageManager.
	*/
	int intentColumn = c.getColumnIndex(Bookmarks.INTENT);
	String intentUri = c.getString(intentColumn);
	PackageManager packageManager = getPackageManager();
	try {
	Intent intent = Intent.parseUri(intentUri, 0);
	ResolveInfo info = packageManager.resolveActivity(intent, 0);
	if (info != null) {
	title = info.loadLabel(packageManager);
	}
	} catch (URISyntaxException e) {
	// Just use the non-localized title, then.
	}

	pref.setTitle(title);
	pref.setSummary(getString(R.string.quick_launch_shortcut,
	String.valueOf(shortcut)));
	pref.setHasBookmark(true);

	newBookmarkedShortcuts.put(shortcut, true);
	if (noLongerBookmarkedShortcuts != null) {
	// After this loop, the shortcuts with value true in this array
	// will no longer have bookmarks
	noLongerBookmarkedShortcuts.put(shortcut, false);
	}
	}

	if (noLongerBookmarkedShortcuts != null) {
	for (int i = noLongerBookmarkedShortcuts.size() - 1; i >= 0; i--) {
	if (noLongerBookmarkedShortcuts.valueAt(i)) {
	// True, so there is no longer a bookmark for this shortcut
	char shortcut = (char) noLongerBookmarkedShortcuts.keyAt(i);
	ShortcutPreference pref = mShortcutToPreference.get(shortcut);
	if (pref != null) {
	pref.setHasBookmark(false);
	}
	}
	}
	}

	mBookmarkedShortcuts = newBookmarkedShortcuts;

	c.deactivate();
	}

	private class BookmarksObserver extends ContentObserver {

	public BookmarksObserver(Handler handler) {
	super(handler);
	}

	@Override
	public void onChange(boolean selfChange) {
	super.onChange(selfChange);

	refreshShortcuts();
	}
	}
	}