FileDocCategorySizeDatePackage
Launcher.javaAPI DocAndroid 1.5 API78538Wed May 06 22:42:46 BST 2009com.android.launcher

Launcher

public final class Launcher extends android.app.Activity implements android.view.View.OnLongClickListener, View.OnClickListener
Default launcher application.

Fields Summary
static final String
LOG_TAG
static final boolean
LOGD
private static final boolean
PROFILE_STARTUP
private static final boolean
PROFILE_DRAWER
private static final boolean
PROFILE_ROTATE
private static final boolean
DEBUG_USER_INTERFACE
private static final int
WALLPAPER_SCREENS_SPAN
private static final int
MENU_GROUP_ADD
private static final int
MENU_ADD
private static final int
MENU_WALLPAPER_SETTINGS
private static final int
MENU_SEARCH
private static final int
MENU_NOTIFICATIONS
private static final int
MENU_SETTINGS
private static final int
REQUEST_CREATE_SHORTCUT
private static final int
REQUEST_CREATE_LIVE_FOLDER
private static final int
REQUEST_CREATE_APPWIDGET
private static final int
REQUEST_PICK_APPLICATION
private static final int
REQUEST_PICK_SHORTCUT
private static final int
REQUEST_PICK_LIVE_FOLDER
private static final int
REQUEST_PICK_APPWIDGET
static final String
EXTRA_SHORTCUT_DUPLICATE
static final String
EXTRA_CUSTOM_WIDGET
static final String
SEARCH_WIDGET
static final int
SCREEN_COUNT
static final int
DEFAULT_SCREN
static final int
NUMBER_CELLS_X
static final int
NUMBER_CELLS_Y
private static final int
DIALOG_CREATE_SHORTCUT
static final int
DIALOG_RENAME_FOLDER
private static final String
PREFERENCES
private static final String
KEY_LOCALE
private static final String
KEY_MCC
private static final String
KEY_MNC
private static final String
RUNTIME_STATE_CURRENT_SCREEN
private static final String
RUNTIME_STATE_ALL_APPS_FOLDER
private static final String
RUNTIME_STATE_USER_FOLDERS
private static final String
RUNTIME_STATE_PENDING_ADD_SCREEN
private static final String
RUNTIME_STATE_PENDING_ADD_CELL_X
private static final String
RUNTIME_STATE_PENDING_ADD_CELL_Y
private static final String
RUNTIME_STATE_PENDING_ADD_SPAN_X
private static final String
RUNTIME_STATE_PENDING_ADD_SPAN_Y
private static final String
RUNTIME_STATE_PENDING_ADD_COUNT_X
private static final String
RUNTIME_STATE_PENDING_ADD_COUNT_Y
private static final String
RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS
private static final String
RUNTIME_STATE_PENDING_FOLDER_RENAME
private static final String
RUNTIME_STATE_PENDING_FOLDER_RENAME_ID
private static final LauncherModel
sModel
private static android.graphics.Bitmap
sWallpaper
private static final Object
sLock
private static int
sScreen
private static WallpaperIntentReceiver
sWallpaperReceiver
private final android.content.BroadcastReceiver
mApplicationsReceiver
private final android.database.ContentObserver
mObserver
private final android.database.ContentObserver
mAppWidgetResetObserver
private android.view.LayoutInflater
mInflater
private DragLayer
mDragLayer
private Workspace
mWorkspace
private android.appwidget.AppWidgetManager
mAppWidgetManager
private LauncherAppWidgetHost
mAppWidgetHost
static final int
APPWIDGET_HOST_ID
private CellLayout.CellInfo
mAddItemCellInfo
private CellLayout.CellInfo
mMenuAddInfo
private final int[]
mCellCoordinates
private FolderInfo
mFolderInfo
private android.widget.SlidingDrawer
mDrawer
private android.graphics.drawable.TransitionDrawable
mHandleIcon
private HandleView
mHandleView
private AllAppsGridView
mAllAppsGrid
private boolean
mDesktopLocked
private android.os.Bundle
mSavedState
private android.text.SpannableStringBuilder
mDefaultKeySsb
private boolean
mDestroyed
private boolean
mRestoring
private boolean
mWaitingForResult
private boolean
mLocaleChanged
private android.os.Bundle
mSavedInstanceState
private DesktopBinder
mBinder
Constructors Summary
Methods Summary
private booleanacceptFilter()

        final InputMethodManager inputManager = (InputMethodManager)
                getSystemService(Context.INPUT_METHOD_SERVICE);
        return !inputManager.isFullscreenMode();
voidaddAppWidget(android.content.Intent data)

        // TODO: catch bad widget exception when sent
        int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);

        String customWidget = data.getStringExtra(EXTRA_CUSTOM_WIDGET);
        if (SEARCH_WIDGET.equals(customWidget)) {
            // We don't need this any more, since this isn't a real app widget.
            mAppWidgetHost.deleteAppWidgetId(appWidgetId);
            // add the search widget
            addSearch();
        } else {
            AppWidgetProviderInfo appWidget = mAppWidgetManager.getAppWidgetInfo(appWidgetId);

            if (appWidget.configure != null) {
                // Launch over to configure widget, if needed
                Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
                intent.setComponent(appWidget.configure);
                intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

                startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);
            } else {
                // Otherwise just add it
                onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
            }
        }
voidaddFolder(boolean insertAtFirst)

        UserFolderInfo folderInfo = new UserFolderInfo();
        folderInfo.title = getText(R.string.folder_name);

        CellLayout.CellInfo cellInfo = mAddItemCellInfo;
        cellInfo.screen = mWorkspace.getCurrentScreen();
        if (!findSingleSlot(cellInfo)) return;

        // Update the model
        LauncherModel.addItemToDatabase(this, folderInfo, LauncherSettings.Favorites.CONTAINER_DESKTOP,
                mWorkspace.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY, false);
        sModel.addDesktopItem(folderInfo);
        sModel.addFolder(folderInfo);

        // Create the view
        FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
        mWorkspace.addInCurrentScreen(newFolder,
                cellInfo.cellX, cellInfo.cellY, 1, 1, insertAtFirst);
private voidaddItems()

        showAddDialog(mMenuAddInfo);
voidaddLiveFolder(android.content.Intent intent)

        // Handle case where user selected "Folder"
        String folderName = getResources().getString(R.string.group_folder);
        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
        
        if (folderName != null && folderName.equals(shortcutName)) {
            addFolder(!mDesktopLocked);
        } else {
            startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
        }
static LiveFolderInfoaddLiveFolder(android.content.Context context, android.content.Intent data, CellLayout.CellInfo cellInfo, boolean notify)


        Intent baseIntent = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
        String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);

        Drawable icon = null;
        boolean filtered = false;
        Intent.ShortcutIconResource iconResource = null;

        Parcelable extra = data.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
        if (extra != null && extra instanceof Intent.ShortcutIconResource) {
            try {
                iconResource = (Intent.ShortcutIconResource) extra;
                final PackageManager packageManager = context.getPackageManager();
                Resources resources = packageManager.getResourcesForApplication(
                        iconResource.packageName);
                final int id = resources.getIdentifier(iconResource.resourceName, null, null);
                icon = resources.getDrawable(id);
            } catch (Exception e) {
                w(LOG_TAG, "Could not load live folder icon: " + extra);
            }
        }

        if (icon == null) {
            icon = context.getResources().getDrawable(R.drawable.ic_launcher_folder);
        }

        final LiveFolderInfo info = new LiveFolderInfo();
        info.icon = icon;
        info.filtered = filtered;
        info.title = name;
        info.iconResource = iconResource;
        info.uri = data.getData();
        info.baseIntent = baseIntent;
        info.displayMode = data.getIntExtra(LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
                LiveFolders.DISPLAY_MODE_GRID);

        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
        sModel.addFolder(info);

        return info;
voidaddSearch()

        final Widget info = Widget.makeSearch();
        final CellLayout.CellInfo cellInfo = mAddItemCellInfo;
        
        final int[] xy = mCellCoordinates;
        final int spanX = info.spanX;
        final int spanY = info.spanY;
    
        if (!findSlot(cellInfo, xy, spanX, spanY)) return;
    
        sModel.addDesktopItem(info);
        LauncherModel.addItemToDatabase(this, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
        mWorkspace.getCurrentScreen(), xy[0], xy[1], false);
    
        final View view = mInflater.inflate(info.layoutResource, null);
        view.setTag(info);
    
        mWorkspace.addInCurrentScreen(view, xy[0], xy[1], info.spanX, spanY);
static ApplicationInfoaddShortcut(android.content.Context context, android.content.Intent data, CellLayout.CellInfo cellInfo, boolean notify)


        Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
        String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
        Bitmap bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON);

        Drawable icon = null;
        boolean filtered = false;
        boolean customIcon = false;
        Intent.ShortcutIconResource iconResource = null;

        if (bitmap != null) {
            icon = new FastBitmapDrawable(Utilities.createBitmapThumbnail(bitmap, context));
            filtered = true;
            customIcon = true;
        } else {
            Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE);
            if (extra != null && extra instanceof Intent.ShortcutIconResource) {
                try {
                    iconResource = (Intent.ShortcutIconResource) extra;
                    final PackageManager packageManager = context.getPackageManager();
                    Resources resources = packageManager.getResourcesForApplication(
                            iconResource.packageName);
                    final int id = resources.getIdentifier(iconResource.resourceName, null, null);
                    icon = resources.getDrawable(id);
                } catch (Exception e) {
                    w(LOG_TAG, "Could not load shortcut icon: " + extra);
                }
            }
        }

        if (icon == null) {
            icon = context.getPackageManager().getDefaultActivityIcon();
        }

        final ApplicationInfo info = new ApplicationInfo();
        info.icon = icon;
        info.filtered = filtered;
        info.title = name;
        info.intent = intent;
        info.customIcon = customIcon;
        info.iconResource = iconResource;

        LauncherModel.addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP,
                cellInfo.screen, cellInfo.cellX, cellInfo.cellY, notify);
        return info;
voidaddShortcut(android.content.Intent intent)

        // Handle case where user selected "Applications"
        String applicationName = getResources().getString(R.string.group_applications);
        String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
        
        if (applicationName != null && applicationName.equals(shortcutName)) {
            Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
            mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
            
            Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
            pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
            startActivityForResult(pickIntent, REQUEST_PICK_APPLICATION);
        } else {
            startActivityForResult(intent, REQUEST_CREATE_SHORTCUT);
        }
private voidbindAppWidgets(com.android.launcher.Launcher$DesktopBinder binder, java.util.LinkedList appWidgets)

        
        final Workspace workspace = mWorkspace;
        final boolean desktopLocked = mDesktopLocked;

        if (!appWidgets.isEmpty()) {
            final LauncherAppWidgetInfo item = appWidgets.removeFirst();
            
            final int appWidgetId = item.appWidgetId;
            final AppWidgetProviderInfo appWidgetInfo =
                    mAppWidgetManager.getAppWidgetInfo(appWidgetId);
            item.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
            
            if (LOGD) {
                d(LOG_TAG, String.format("about to setAppWidget for id=%d, info=%s",
                        appWidgetId, appWidgetInfo));
            }
            
            item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
            item.hostView.setTag(item);
            
            workspace.addInScreen(item.hostView, item.screen, item.cellX,
                    item.cellY, item.spanX, item.spanY, !desktopLocked);
    
            workspace.requestLayout();
        }

        if (appWidgets.isEmpty()) {
            if (PROFILE_ROTATE) {
                android.os.Debug.stopMethodTracing();
            }
        } else {
            binder.obtainMessage(DesktopBinder.MESSAGE_BIND_APPWIDGETS).sendToTarget();
        }
private voidbindDesktopItems()
Refreshes the shortcuts shown on the workspace.

        final ArrayList<ItemInfo> shortcuts = sModel.getDesktopItems();
        final ArrayList<LauncherAppWidgetInfo> appWidgets = sModel.getDesktopAppWidgets();
        final ApplicationsAdapter drawerAdapter = sModel.getApplicationsAdapter();
        if (shortcuts == null || appWidgets == null || drawerAdapter == null) {
            return;
        }

        mAllAppsGrid.setAdapter(drawerAdapter);

        final Workspace workspace = mWorkspace;
        int count = workspace.getChildCount();
        for (int i = 0; i < count; i++) {
            ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
        }
        
        if (DEBUG_USER_INTERFACE) {
            android.widget.Button finishButton = new android.widget.Button(this);
            finishButton.setText("Finish");
            workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);

            finishButton.setOnClickListener(new android.widget.Button.OnClickListener() {
                public void onClick(View v) {
                    finish();
                }
            });
        }
        
        // Flag any old binder to terminate early
        if (mBinder != null) {
            mBinder.mTerminate = true;
        }
        
        mBinder = new DesktopBinder(this, shortcuts, appWidgets);
        mBinder.startBindingItems();
private voidbindItems(com.android.launcher.Launcher$DesktopBinder binder, java.util.ArrayList shortcuts, int start, int count)


        final Workspace workspace = mWorkspace;
        final boolean desktopLocked = mDesktopLocked;

        final int end = Math.min(start + DesktopBinder.ITEMS_COUNT, count);
        int i = start;

        for ( ; i < end; i++) {
            final ItemInfo item = shortcuts.get(i);
            switch (item.itemType) {
                case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
                    final View shortcut = createShortcut((ApplicationInfo) item);
                    workspace.addInScreen(shortcut, item.screen, item.cellX, item.cellY, 1, 1,
                            !desktopLocked);
                    break;
                case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
                    final FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
                            (UserFolderInfo) item);
                    workspace.addInScreen(newFolder, item.screen, item.cellX, item.cellY, 1, 1,
                            !desktopLocked);
                    break;
                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
                    final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
                            R.layout.live_folder_icon, this,
                            (ViewGroup) workspace.getChildAt(workspace.getCurrentScreen()),
                            (LiveFolderInfo) item);
                    workspace.addInScreen(newLiveFolder, item.screen, item.cellX, item.cellY, 1, 1,
                            !desktopLocked);
                    break;
                case LauncherSettings.Favorites.ITEM_TYPE_WIDGET_SEARCH:
                    final int screen = workspace.getCurrentScreen();
                    final View view = mInflater.inflate(R.layout.widget_search,
                            (ViewGroup) workspace.getChildAt(screen), false);
                    
                    final Widget widget = (Widget) item;
                    view.setTag(widget);
                    
                    workspace.addWidget(view, widget, !desktopLocked);
                    break;
            }
        }

        workspace.requestLayout();

        if (end >= count) {
            finishBindDesktopItems();
            binder.startBindingAppWidgetsWhenIdle();
        } else {
            binder.obtainMessage(DesktopBinder.MESSAGE_BIND_ITEMS, i, count).sendToTarget();
        }
private voidcheckForLocaleChange()

        final SharedPreferences preferences = getSharedPreferences(PREFERENCES, MODE_PRIVATE);
        final Configuration configuration = getResources().getConfiguration();

        final String previousLocale = preferences.getString(KEY_LOCALE, null);
        final String locale = configuration.locale.toString();

        final int previousMcc = preferences.getInt(KEY_MCC, -1);
        final int mcc = configuration.mcc;

        final int previousMnc = preferences.getInt(KEY_MNC, -1);
        final int mnc = configuration.mnc;

        mLocaleChanged = !locale.equals(previousLocale) || mcc != previousMcc || mnc != previousMnc;

        if (mLocaleChanged) {
            final SharedPreferences.Editor editor = preferences.edit();
            editor.putString(KEY_LOCALE, locale);
            editor.putInt(KEY_MCC, mcc);
            editor.putInt(KEY_MNC, mnc);
            editor.commit();
        }
voidcloseAllApplications()

        mDrawer.close();
private voidcloseDrawer()

        closeDrawer(true);
private voidcloseDrawer(boolean animated)

        if (mDrawer.isOpened()) {
            if (animated) {
                mDrawer.animateClose();
            } else {
                mDrawer.close();
            }
            if (mDrawer.hasFocus()) {
                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
            }
        }
private voidcloseFolder()

        Folder folder = mWorkspace.getOpenFolder();
        if (folder != null) {
            closeFolder(folder);
        }
voidcloseFolder(Folder folder)

        folder.getInfo().opened = false;
        ViewGroup parent = (ViewGroup) folder.getParent();
        if (parent != null) {
            parent.removeView(folder);
        }
        folder.onClose();
private voidcompleteAddAppWidget(android.content.Intent data, CellLayout.CellInfo cellInfo, boolean insertAtFirst)
Add a widget to the workspace.

param
data The intent describing the appWidgetId.
param
cellInfo The position on screen where to create the widget.


        Bundle extras = data.getExtras();
        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
        
        d(LOG_TAG, "dumping extras content="+extras.toString());
        
        AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager.getAppWidgetInfo(appWidgetId);
        
        // Calculate the grid spans needed to fit this widget
        CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
        int[] spans = layout.rectToCell(appWidgetInfo.minWidth, appWidgetInfo.minHeight);
        
        // Try finding open space on Launcher screen
        final int[] xy = mCellCoordinates;
        if (!findSlot(cellInfo, xy, spans[0], spans[1])) return;

        // Build Launcher-specific widget info and save to database
        LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(appWidgetId);
        launcherInfo.spanX = spans[0];
        launcherInfo.spanY = spans[1];
        
        LauncherModel.addItemToDatabase(this, launcherInfo,
                LauncherSettings.Favorites.CONTAINER_DESKTOP,
                mWorkspace.getCurrentScreen(), xy[0], xy[1], false);

        if (!mRestoring) {
            sModel.addDesktopAppWidget(launcherInfo);
            
            // Perform actual inflation because we're live
            launcherInfo.hostView = mAppWidgetHost.createView(this, appWidgetId, appWidgetInfo);
            
            launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
            launcherInfo.hostView.setTag(launcherInfo);
            
            mWorkspace.addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
                    launcherInfo.spanX, launcherInfo.spanY, insertAtFirst);
        } else if (sModel.isDesktopLoaded()) {
            sModel.addDesktopAppWidget(launcherInfo);
        }
voidcompleteAddApplication(android.content.Context context, android.content.Intent data, CellLayout.CellInfo cellInfo, boolean insertAtFirst)
Add an application shortcut to the workspace.

param
data The intent describing the application.
param
cellInfo The position on screen where to create the shortcut.

        cellInfo.screen = mWorkspace.getCurrentScreen();
        if (!findSingleSlot(cellInfo)) return;

        // Find details for this application
        ComponentName component = data.getComponent();
        PackageManager packageManager = context.getPackageManager();
        ActivityInfo activityInfo = null;
        try {
            activityInfo = packageManager.getActivityInfo(component, 0 /* no flags */);
        } catch (NameNotFoundException e) {
            Log.e(LOG_TAG, "Couldn't find ActivityInfo for selected application", e);
        }
        
        if (activityInfo != null) {
            ApplicationInfo itemInfo = new ApplicationInfo();
            
            itemInfo.title = activityInfo.loadLabel(packageManager);
            if (itemInfo.title == null) {
                itemInfo.title = activityInfo.name;
            }
            
            itemInfo.setActivity(component, Intent.FLAG_ACTIVITY_NEW_TASK |
                    Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
            itemInfo.icon = activityInfo.loadIcon(packageManager);
            itemInfo.container = ItemInfo.NO_ID;

            mWorkspace.addApplicationShortcut(itemInfo, cellInfo, insertAtFirst);
        }
private voidcompleteAddLiveFolder(android.content.Intent data, CellLayout.CellInfo cellInfo, boolean insertAtFirst)

        cellInfo.screen = mWorkspace.getCurrentScreen();
        if (!findSingleSlot(cellInfo)) return;

        final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);

        if (!mRestoring) {
            sModel.addDesktopItem(info);

            final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon, this,
                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1, insertAtFirst);
        } else if (sModel.isDesktopLoaded()) {
            sModel.addDesktopItem(info);
        }
private voidcompleteAddShortcut(android.content.Intent data, CellLayout.CellInfo cellInfo, boolean insertAtFirst)
Add a shortcut to the workspace.

param
data The intent describing the shortcut.
param
cellInfo The position on screen where to create the shortcut.
param
insertAtFirst

        cellInfo.screen = mWorkspace.getCurrentScreen();
        if (!findSingleSlot(cellInfo)) return;
        
        final ApplicationInfo info = addShortcut(this, data, cellInfo, false);

        if (!mRestoring) {
            sModel.addDesktopItem(info);

            final View view = createShortcut(info);
            mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY, 1, 1, insertAtFirst);
        } else if (sModel.isDesktopLoaded()) {
            sModel.addDesktopItem(info);
        }
android.view.ViewcreateShortcut(ApplicationInfo info)
Creates a view representing a shortcut.

param
info The data structure describing the shortcut.
return
A View inflated from R.layout.application.

        return createShortcut(R.layout.application,
                (ViewGroup) mWorkspace.getChildAt(mWorkspace.getCurrentScreen()), info);
android.view.ViewcreateShortcut(int layoutResId, android.view.ViewGroup parent, ApplicationInfo info)
Creates a view representing a shortcut inflated from the specified resource.

param
layoutResId The id of the XML layout used to create the shortcut.
param
parent The group the shortcut belongs to.
param
info The data structure describing the shortcut.
return
A View inflated from layoutResId.

        TextView favorite = (TextView) mInflater.inflate(layoutResId, parent, false);

        if (!info.filtered) {
            info.icon = Utilities.createIconThumbnail(info.icon, this);
            info.filtered = true;
        }

        favorite.setCompoundDrawablesWithIntrinsicBounds(null, info.icon, null, null);
        favorite.setText(info.title);
        favorite.setTag(info);
        favorite.setOnClickListener(this);

        return favorite;
public booleandispatchKeyEvent(android.view.KeyEvent event)

        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            switch (event.getKeyCode()) {
                case KeyEvent.KEYCODE_BACK:
                    mWorkspace.dispatchKeyEvent(event); 
                    if (mDrawer.isOpened()) {
                        closeDrawer();
                    } else {
                        closeFolder();                        
                    }
                    return true;
                case KeyEvent.KEYCODE_HOME:
                    return true;
            }
        }

        return super.dispatchKeyEvent(event);
private booleanfindSingleSlot(CellLayout.CellInfo cellInfo)

        final int[] xy = new int[2];
        if (findSlot(cellInfo, xy, 1, 1)) {
            cellInfo.cellX = xy[0];
            cellInfo.cellY = xy[1];
            return true;
        }
        return false;
private booleanfindSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX, int spanY)

        if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
            boolean[] occupied = mSavedState != null ?
                    mSavedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS) : null;
            cellInfo = mWorkspace.findAllVacantCells(occupied);
            if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
                Toast.makeText(this, getString(R.string.out_of_space), Toast.LENGTH_SHORT).show();
                return false;
            }
        }
        return true;
private voidfinishBindDesktopItems()

        if (mSavedState != null) {
            if (!mWorkspace.hasFocus()) {
                mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
            }

            final long[] userFolders = mSavedState.getLongArray(RUNTIME_STATE_USER_FOLDERS);
            if (userFolders != null) {
                for (long folderId : userFolders) {
                    final FolderInfo info = sModel.findFolderById(folderId);
                    if (info != null) {
                        openFolder(info);
                    }
                }
                final Folder openFolder = mWorkspace.getOpenFolder();
                if (openFolder != null) {
                    openFolder.requestFocus();
                }
            }

            final boolean allApps = mSavedState.getBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, false);
            if (allApps) {
                mDrawer.open();
            }

            mSavedState = null;
        }

        if (mSavedInstanceState != null) {
            super.onRestoreInstanceState(mSavedInstanceState);
            mSavedInstanceState = null;
        }

        if (mDrawer.isOpened() && !mDrawer.hasFocus()) {
            mDrawer.requestFocus();
        }

        mDesktopLocked = false;
        mDrawer.unlock();
public LauncherAppWidgetHostgetAppWidgetHost()

        return mAppWidgetHost;
android.widget.GridViewgetApplicationsGrid()

        return mAllAppsGrid;
DragControllergetDragController()

        return mDragLayer;
android.view.ViewgetDrawerHandle()

        return mHandleView;
static LauncherModelgetModel()

        return sModel;
static intgetScreen()

        synchronized (sLock) {
            return sScreen;
        }
WorkspacegetWorkspace()

        return mWorkspace;
private voidhandleFolderClick(FolderInfo folderInfo)

        if (!folderInfo.opened) {
            // Close any open folder
            closeFolder();
            // Open the requested folder
            openFolder(folderInfo);
        } else {
            // Find the open folder...
            Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
            int folderScreen;
            if (openFolder != null) {
                folderScreen = mWorkspace.getScreenForView(openFolder);
                // .. and close it
                closeFolder(openFolder);
                if (folderScreen != mWorkspace.getCurrentScreen()) {
                    // Close any folder open on the current screen
                    closeFolder();
                    // Pull the folder onto this screen
                    openFolder(folderInfo);
                }
            }
        }
booleanisDrawerDown()

        return !mDrawer.isMoving() && !mDrawer.isOpened();
booleanisDrawerMoving()

        return mDrawer.isMoving();
booleanisDrawerUp()

        return mDrawer.isOpened() && !mDrawer.isMoving();
booleanisWorkspaceLocked()
Returns true if the workspace is being loaded. When the workspace is loading, no user interaction should be allowed to avoid any conflict.

return
True if the workspace is locked, false otherwise.

        return mDesktopLocked;
private voidloadWallpaper()

        // The first time the application is started, we load the wallpaper from
        // the ApplicationContext
        if (sWallpaper == null) {
            final Drawable drawable = getWallpaper();
            if (drawable instanceof BitmapDrawable) {
                sWallpaper = ((BitmapDrawable) drawable).getBitmap();
            } else {
                throw new IllegalStateException("The wallpaper must be a BitmapDrawable.");
            }
        }
        mWorkspace.loadWallpaper(sWallpaper);
protected voidonActivityResult(int requestCode, int resultCode, android.content.Intent data)

        // The pattern used here is that a user PICKs a specific application,
        // which, depending on the target, might need to CREATE the actual target.
        
        // For example, the user would PICK_SHORTCUT for "Music playlist", and we
        // launch over to the Music app to actually CREATE_SHORTCUT.
        
        if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
            switch (requestCode) {
                case REQUEST_PICK_APPLICATION:
                    completeAddApplication(this, data, mAddItemCellInfo, !mDesktopLocked);
                    break;
                case REQUEST_PICK_SHORTCUT:
                    addShortcut(data);
                    break;
                case REQUEST_CREATE_SHORTCUT:
                    completeAddShortcut(data, mAddItemCellInfo, !mDesktopLocked);
                    break;
                case REQUEST_PICK_LIVE_FOLDER:
                    addLiveFolder(data);
                    break;
                case REQUEST_CREATE_LIVE_FOLDER:
                    completeAddLiveFolder(data, mAddItemCellInfo, !mDesktopLocked);
                    break;
                case REQUEST_PICK_APPWIDGET:
                    addAppWidget(data);
                    break;
                case REQUEST_CREATE_APPWIDGET:
                    completeAddAppWidget(data, mAddItemCellInfo, !mDesktopLocked);
                    break;
            }
        } else if (requestCode == REQUEST_PICK_APPWIDGET &&
                resultCode == RESULT_CANCELED && data != null) {
            // Clean up the appWidgetId if we canceled
            int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
            if (appWidgetId != -1) {
                mAppWidgetHost.deleteAppWidgetId(appWidgetId);
            }
        }
        mWaitingForResult = false;
private voidonAppWidgetReset()
When reset, we handle by calling {@link AppWidgetHost#startListening()} to make sure our callbacks are set correctly.

        if (mAppWidgetHost != null) {
            mAppWidgetHost.startListening();
        }
public voidonClick(android.view.View v)
Launches the intent referred by the clicked shortcut.

param
v The view representing the clicked shortcut.

        Object tag = v.getTag();
        if (tag instanceof ApplicationInfo) {
            // Open shortcut
            final Intent intent = ((ApplicationInfo) tag).intent;
            startActivitySafely(intent);
        } else if (tag instanceof FolderInfo) {
            handleFolderClick((FolderInfo) tag);
        }
protected voidonCreate(android.os.Bundle savedInstanceState)

    
    
        
        super.onCreate(savedInstanceState);
        mInflater = getLayoutInflater();
        
        mAppWidgetManager = AppWidgetManager.getInstance(this);
        
        mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
        mAppWidgetHost.startListening();
        
        if (PROFILE_STARTUP) {
            android.os.Debug.startMethodTracing("/sdcard/launcher");
        }

        checkForLocaleChange();
        setWallpaperDimension();

        setContentView(R.layout.launcher);
        setupViews();

        registerIntentReceivers();
        registerContentObservers();

        mSavedState = savedInstanceState;
        restoreState(mSavedState);

        if (PROFILE_STARTUP) {
            android.os.Debug.stopMethodTracing();
        }

        if (!mRestoring) {
            startLoaders();
        }

        // For handling default keys
        mDefaultKeySsb = new SpannableStringBuilder();
        Selection.setSelection(mDefaultKeySsb, 0);
protected android.app.DialogonCreateDialog(int id)

        switch (id) {
            case DIALOG_CREATE_SHORTCUT:
                return new CreateShortcut().createDialog();
            case DIALOG_RENAME_FOLDER:
                return new RenameFolder().createDialog();
        }

        return super.onCreateDialog(id);
public booleanonCreateOptionsMenu(android.view.Menu menu)

        if (mDesktopLocked) return false;

        super.onCreateOptionsMenu(menu);
        menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add)
                .setIcon(android.R.drawable.ic_menu_add)
                .setAlphabeticShortcut('A");
        menu.add(0, MENU_WALLPAPER_SETTINGS, 0, R.string.menu_wallpaper)
                 .setIcon(android.R.drawable.ic_menu_gallery)
                 .setAlphabeticShortcut('W");
        menu.add(0, MENU_SEARCH, 0, R.string.menu_search)
                .setIcon(android.R.drawable.ic_search_category_default)
                .setAlphabeticShortcut(SearchManager.MENU_KEY);
        menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
                .setIcon(com.android.internal.R.drawable.ic_menu_notifications)
                .setAlphabeticShortcut('N");

        final Intent settings = new Intent(android.provider.Settings.ACTION_SETTINGS);
        settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

        menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings)
                .setIcon(android.R.drawable.ic_menu_preferences).setAlphabeticShortcut('P")
                .setIntent(settings);

        return true;
voidonDesktopItemsLoaded()

        if (mDestroyed) return;
        bindDesktopItems();
public voidonDestroy()

        mDestroyed = true;

        super.onDestroy();
        
        try {
            mAppWidgetHost.stopListening();
        } catch (NullPointerException ex) {
            w(LOG_TAG, "problem while stopping AppWidgetHost during Launcher destruction", ex);
        }

        TextKeyListener.getInstance().release();

        mAllAppsGrid.clearTextFilter();
        mAllAppsGrid.setAdapter(null);
        sModel.unbind();
        sModel.abortLoaders();

        getContentResolver().unregisterContentObserver(mObserver);
        getContentResolver().unregisterContentObserver(mAppWidgetResetObserver);
        unregisterReceiver(mApplicationsReceiver);
private voidonFavoritesChanged()
When the notification that favorites have changed is received, requests a favorites list refresh.

        mDesktopLocked = true;
        mDrawer.lock();
        sModel.loadUserItems(false, this, false, false);
public booleanonKeyDown(int keyCode, android.view.KeyEvent event)

        boolean handled = super.onKeyDown(keyCode, event);
        if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
            boolean gotKey = TextKeyListener.getInstance().onKeyDown(mWorkspace, mDefaultKeySsb,
                    keyCode, event);
            if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
                // something usable has been typed - dispatch it now.
                final String str = mDefaultKeySsb.toString();

                boolean isDialable = true;
                final int count = str.length();
                for (int i = 0; i < count; i++) {
                    if (!PhoneNumberUtils.isReallyDialable(str.charAt(i))) {
                        isDialable = false;
                        break;
                    }
                }
                Intent intent;
                if (isDialable) {
                    intent = new Intent(Intent.ACTION_DIAL, Uri.fromParts("tel", str, null));
                } else {
                    intent = new Intent(Contacts.Intents.UI.FILTER_CONTACTS_ACTION);
                    intent.putExtra(Contacts.Intents.UI.FILTER_TEXT_EXTRA_KEY, str);
                }

                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                        | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

                try {
                    startActivity(intent);
                } catch (android.content.ActivityNotFoundException ex) {
                    // Oh well... no one knows how to filter/dial. Life goes on.
                }

                mDefaultKeySsb.clear();
                mDefaultKeySsb.clearSpans();
                Selection.setSelection(mDefaultKeySsb, 0);

                return true;
            }
        }

        return handled;
public booleanonLongClick(android.view.View v)

        if (mDesktopLocked) {
            return false;
        }

        if (!(v instanceof CellLayout)) {
            v = (View) v.getParent();
        }

        CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();

        // This happens when long clicking an item with the dpad/trackball
        if (cellInfo == null) {
            return true;
        }

        if (mWorkspace.allowLongPress()) {
            if (cellInfo.cell == null) {
                if (cellInfo.valid) {
                    // User long pressed on empty space
                    mWorkspace.setAllowLongPress(false);
                    showAddDialog(cellInfo);
                }
            } else {
                if (!(cellInfo.cell instanceof Folder)) {
                    // User long pressed on an item
                    mWorkspace.startDrag(cellInfo);
                }
            }
        }
        return true;
protected voidonNewIntent(android.content.Intent intent)

        super.onNewIntent(intent);

        // Close the menu
        if (Intent.ACTION_MAIN.equals(intent.getAction())) {
            getWindow().closeAllPanels();

            try {
                dismissDialog(DIALOG_CREATE_SHORTCUT);
                // Unlock the workspace if the dialog was showing
                mWorkspace.unlock();
            } catch (Exception e) {
                // An exception is thrown if the dialog is not visible, which is fine
            }

            try {
                dismissDialog(DIALOG_RENAME_FOLDER);
                // Unlock the workspace if the dialog was showing
                mWorkspace.unlock();
            } catch (Exception e) {
                // An exception is thrown if the dialog is not visible, which is fine
            }

            // If we are already in front we go back to the default screen,
            // otherwise we don't
            if ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) !=
                    Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) {
                if (!mWorkspace.isDefaultScreenShowing()) {
                    mWorkspace.moveToDefaultScreen();
                }
                closeDrawer();
                View v = getWindow().peekDecorView();
                if (v != null && v.getWindowToken() != null) {
                    InputMethodManager imm = (InputMethodManager)getSystemService(
                            INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
                }
            } else {
                closeDrawer(false);
            }
        }
public booleanonOptionsItemSelected(android.view.MenuItem item)

        switch (item.getItemId()) {
            case MENU_ADD:
                addItems();
                return true;
            case MENU_WALLPAPER_SETTINGS:
                startWallpaper();
                return true;
            case MENU_SEARCH:
                onSearchRequested();
                return true;
            case MENU_NOTIFICATIONS:
                showNotifications();
                return true;
        }

        return super.onOptionsItemSelected(item);
protected voidonPause()

        super.onPause();
        closeDrawer(false);
protected voidonPrepareDialog(int id, android.app.Dialog dialog)

        switch (id) {
            case DIALOG_CREATE_SHORTCUT:
                mWorkspace.lock();
                break;
            case DIALOG_RENAME_FOLDER:
                mWorkspace.lock();
                EditText input = (EditText) dialog.findViewById(R.id.folder_name);
                final CharSequence text = mFolderInfo.title;
                input.setText(text);
                input.setSelection(0, text.length());                
                break;
        }
public booleanonPrepareOptionsMenu(android.view.Menu menu)

        super.onPrepareOptionsMenu(menu);

        mMenuAddInfo = mWorkspace.findAllVacantCells(null);
        menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null && mMenuAddInfo.valid);

        return true;
protected voidonRestoreInstanceState(android.os.Bundle savedInstanceState)

        // Do not call super here
        mSavedInstanceState = savedInstanceState;
protected voidonResume()

        super.onResume();

        if (mRestoring) {
            startLoaders();
        }
public java.lang.ObjectonRetainNonConfigurationInstance()

        // Flag any binder to stop early before switching
        if (mBinder != null) {
            mBinder.mTerminate = true;
        }
        
        if (PROFILE_ROTATE) {
            android.os.Debug.startMethodTracing("/sdcard/launcher-rotate");
        }
        return null;
protected voidonSaveInstanceState(android.os.Bundle outState)

        outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getCurrentScreen());

        final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
        if (folders.size() > 0) {
            final int count = folders.size();
            long[] ids = new long[count];
            for (int i = 0; i < count; i++) {
                final FolderInfo info = folders.get(i).getInfo();
                ids[i] = info.id;
            }
            outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
        } else {
            super.onSaveInstanceState(outState);
        }

        if (mDrawer.isOpened()) {
            outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
        }        

        if (mAddItemCellInfo != null && mAddItemCellInfo.valid && mWaitingForResult) {
            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
            final CellLayout layout = (CellLayout) mWorkspace.getChildAt(addItemCellInfo.screen);

            outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN, addItemCellInfo.screen);
            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X, addItemCellInfo.cellX);
            outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y, addItemCellInfo.cellY);
            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X, addItemCellInfo.spanX);
            outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y, addItemCellInfo.spanY);
            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout.getCountX());
            outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout.getCountY());
            outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
                   layout.getOccupiedCells());
        }

        if (mFolderInfo != null && mWaitingForResult) {
            outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
            outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID, mFolderInfo.id);
        }
public booleanonSearchRequested()

        if (mWorkspace.snapToSearch()) {
            closeDrawer(true);                // search widget: get drawer out of the way
            return true;
        } else {
            return super.onSearchRequested(); // no search widget: use system search UI
        }
private voidopenFolder(FolderInfo folderInfo)
Opens the user fodler described by the specified tag. The opening of the folder is animated relative to the specified View. If the View is null, no animation is played.

param
folderInfo The FolderInfo describing the folder to open.

        Folder openFolder;

        if (folderInfo instanceof UserFolderInfo) {
            openFolder = UserFolder.fromXml(this);
        } else if (folderInfo instanceof LiveFolderInfo) {
            openFolder = com.android.launcher.LiveFolder.fromXml(this, folderInfo);
        } else {
            return;
        }

        openFolder.setDragger(mDragLayer);
        openFolder.setLauncher(this);

        openFolder.bind(folderInfo);
        folderInfo.opened = true;

        mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
        openFolder.onOpen();
private voidregisterContentObservers()
Registers various content observers. The current implementation registers only a favorites observer to keep track of the favorites applications.

        ContentResolver resolver = getContentResolver();
        resolver.registerContentObserver(LauncherSettings.Favorites.CONTENT_URI, true, mObserver);
        resolver.registerContentObserver(LauncherProvider.CONTENT_APPWIDGET_RESET_URI, true, mAppWidgetResetObserver);
private voidregisterIntentReceivers()
Registers various intent receivers. The current implementation registers only a wallpaper intent receiver to let other applications change the wallpaper.

        if (sWallpaperReceiver == null) {
            final Application application = getApplication();

            sWallpaperReceiver = new WallpaperIntentReceiver(application, this);

            IntentFilter filter = new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED);
            application.registerReceiver(sWallpaperReceiver, filter);
        } else {
            sWallpaperReceiver.setLauncher(this);
        }

        IntentFilter filter = new IntentFilter(Intent.ACTION_PACKAGE_ADDED);
        filter.addAction(Intent.ACTION_PACKAGE_REMOVED);
        filter.addAction(Intent.ACTION_PACKAGE_CHANGED);
        filter.addDataScheme("package");
        registerReceiver(mApplicationsReceiver, filter);
private voidremoveShortcutsForPackage(java.lang.String packageName)

        if (packageName != null && packageName.length() > 0) {
            mWorkspace.removeShortcutsForPackage(packageName);
        }
private voidrestoreState(android.os.Bundle savedState)
Restores the previous state, if it exists.

param
savedState The previous state.

        if (savedState == null) {
            return;
        }

        final int currentScreen = savedState.getInt(RUNTIME_STATE_CURRENT_SCREEN, -1);
        if (currentScreen > -1) {
            mWorkspace.setCurrentScreen(currentScreen);
        }

        final int addScreen = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
        if (addScreen > -1) {
            mAddItemCellInfo = new CellLayout.CellInfo();
            final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
            addItemCellInfo.valid = true;
            addItemCellInfo.screen = addScreen;
            addItemCellInfo.cellX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
            addItemCellInfo.cellY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
            addItemCellInfo.spanX = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
            addItemCellInfo.spanY = savedState.getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
            addItemCellInfo.findVacantCellsFromOccupied(
                    savedState.getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
                    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
            mRestoring = true;
        }

        boolean renameFolder = savedState.getBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
        if (renameFolder) {
            long id = savedState.getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
            mFolderInfo = sModel.getFolderById(this, id);
            mRestoring = true;
        }
static voidsetScreen(int screen)

        synchronized (sLock) {
            sScreen = screen;
        }
private voidsetWallpaperDimension()

        IBinder binder = ServiceManager.getService(WALLPAPER_SERVICE);
        IWallpaperService wallpaperService = IWallpaperService.Stub.asInterface(binder);

        Display display = getWindowManager().getDefaultDisplay();
        boolean isPortrait = display.getWidth() < display.getHeight();

        final int width = isPortrait ? display.getWidth() : display.getHeight();
        final int height = isPortrait ? display.getHeight() : display.getWidth();
        try {
            wallpaperService.setDimensionHints(width * WALLPAPER_SCREENS_SPAN, height);
        } catch (RemoteException e) {
            // System is dead!
        }
private voidsetupViews()
Finds all the views we need and configure them properly.

        mDragLayer = (DragLayer) findViewById(R.id.drag_layer);
        final DragLayer dragLayer = mDragLayer;

        mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
        final Workspace workspace = mWorkspace;

        mDrawer = (SlidingDrawer) dragLayer.findViewById(R.id.drawer);
        final SlidingDrawer drawer = mDrawer;

        mAllAppsGrid = (AllAppsGridView) drawer.getContent();
        final AllAppsGridView grid = mAllAppsGrid;

        final DeleteZone deleteZone = (DeleteZone) dragLayer.findViewById(R.id.delete_zone);

        mHandleView = (HandleView) drawer.findViewById(R.id.all_apps);
        mHandleView.setLauncher(this);
        mHandleIcon = (TransitionDrawable) mHandleView.getDrawable();
        mHandleIcon.setCrossFadeEnabled(true);

        drawer.lock();
        final DrawerManager drawerManager = new DrawerManager();
        drawer.setOnDrawerOpenListener(drawerManager);
        drawer.setOnDrawerCloseListener(drawerManager);
        drawer.setOnDrawerScrollListener(drawerManager);

        grid.setTextFilterEnabled(true);
        grid.setDragger(dragLayer);
        grid.setLauncher(this);

        workspace.setOnLongClickListener(this);
        workspace.setDragger(dragLayer);
        workspace.setLauncher(this);
        loadWallpaper();

        deleteZone.setLauncher(this);
        deleteZone.setDragController(dragLayer);
        deleteZone.setHandle(mHandleView);

        dragLayer.setIgnoredDropTarget(grid);
        dragLayer.setDragScoller(workspace);
        dragLayer.setDragListener(deleteZone);
private voidshowAddDialog(CellLayout.CellInfo cellInfo)

        mAddItemCellInfo = cellInfo;
        mWaitingForResult = true;
        showDialog(DIALOG_CREATE_SHORTCUT);
private voidshowNotifications()

        final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
        if (statusBar != null) {
            statusBar.expand();
        }
voidshowRenameDialog(FolderInfo info)

        mFolderInfo = info;
        mWaitingForResult = true;
        showDialog(DIALOG_RENAME_FOLDER);
public voidstartActivityForResult(android.content.Intent intent, int requestCode)

        mWaitingForResult = true;
        super.startActivityForResult(intent, requestCode);
voidstartActivitySafely(android.content.Intent intent)

        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        try {
            startActivity(intent);
        } catch (ActivityNotFoundException e) {
            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
        } catch (SecurityException e) {
            Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
            Log.e(LOG_TAG, "Launcher does not have the permission to launch " + intent +
                    ". Make sure to create a MAIN intent-filter for the corresponding activity " +
                    "or use the exported attribute for this activity.", e);
        }
private voidstartLoaders()

        boolean loadApplications = sModel.loadApplications(true, this, mLocaleChanged);
        sModel.loadUserItems(!mLocaleChanged, this, mLocaleChanged, loadApplications);

        mRestoring = false;
public voidstartSearch(java.lang.String initialQuery, boolean selectInitialQuery, android.os.Bundle appSearchData, boolean globalSearch)

        if (appSearchData == null) {
            appSearchData = new Bundle();
            appSearchData.putString(SearchManager.SOURCE, "launcher-search");
        }
        super.startSearch(initialQuery, selectInitialQuery, appSearchData, globalSearch);
private voidstartWallpaper()

        final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
        startActivity(Intent.createChooser(pickWallpaper, getString(R.string.chooser_wallpaper)));
private voidupdateShortcutsForPackage(java.lang.String packageName)

        if (packageName != null && packageName.length() > 0) {
            mWorkspace.updateShortcutsForPackage(packageName);
        }