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/*
* Copyright (C) 2010 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.launcher2;
import com.android.launcher.R;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.Bitmap.Config;
import android.graphics.Region.Op;
import android.graphics.drawable.Drawable;
import android.provider.LiveFolders;
import android.util.AttributeSet;
import android.util.Log;
import android.view.ActionMode;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class CustomizePagedView extends PagedView
implements View.OnLongClickListener, View.OnClickListener,
DragSource, ActionMode.Callback {
public enum CustomizationType {
WidgetCustomization,
FolderCustomization,
ShortcutCustomization,
WallpaperCustomization,
ApplicationCustomization
}
/**
* The linear layout used strictly for the widget tab of the customization tray
*/
private class WidgetLayout extends LinearLayout {
public WidgetLayout(Context context) {
super(context);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// We eat up the touch events here, since the PagedView (which uses the same swiping
// touch code as Workspace previously) uses onInterceptTouchEvent() to determine when
// the user is scrolling between pages. This means that if the pages themselves don't
// handle touch events, it gets forwarded up to PagedView itself, and it's own
// onTouchEvent() handling will prevent further intercept touch events from being called
// (it's the same view in that case). This is not ideal, but to prevent more changes,
// we just always mark the touch event as handled.
return super.onTouchEvent(event) || true;
}
}
private static final String TAG = "CustomizeWorkspace";
private static final boolean DEBUG = false;
private Launcher mLauncher;
private DragController mDragController;
private PackageManager mPackageManager;
private CustomizationType mCustomizationType;
// The layout used to emulate the workspace in resolve the cell dimensions of a widget
private PagedViewCellLayout mWorkspaceWidgetLayout;
// The mapping between the pages and the widgets that will be laid out on them
private ArrayList<ArrayList<AppWidgetProviderInfo>> mWidgetPages;
// The max dimensions for the ImageView we use for displaying the widget
private int mMaxWidgetWidth;
// The max number of widget cells to take a "page" of widget
private int mMaxWidgetsCellHSpan;
// The raw sources of data for each of the different tabs of the customization page
private List<AppWidgetProviderInfo> mWidgetList;
private List<ResolveInfo> mFolderList;
private List<ResolveInfo> mShortcutList;
private List<ResolveInfo> mWallpaperList;
private List<ApplicationInfo> mApps;
private int mCellCountX;
private int mCellCountY;
private int mPageLayoutPaddingTop;
private int mPageLayoutPaddingBottom;
private int mPageLayoutPaddingLeft;
private int mPageLayoutPaddingRight;
private static final int sMinWidgetCellHSpan = 2;
private static final int sMaxWidgetCellHSpan = 4;
private int mChoiceModeTitleText;
// The scale factor for widget previews inside the widget drawer
private static final float sScaleFactor = 0.75f;
private final Canvas mCanvas = new Canvas();
private final LayoutInflater mInflater;
public CustomizePagedView(Context context) {
this(context, null, 0);
}
public CustomizePagedView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public CustomizePagedView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
TypedArray a;
a = context.obtainStyledAttributes(attrs, R.styleable.CustomizePagedView,
defStyle, 0);
mMaxWidgetsCellHSpan = a.getInt(R.styleable.CustomizePagedView_widgetCellCountX, 8);
a.recycle();
a = context.obtainStyledAttributes(attrs, R.styleable.PagedView, defStyle, 0);
mCellCountX = a.getInt(R.styleable.PagedView_cellCountX, 7);
mCellCountY = a.getInt(R.styleable.PagedView_cellCountY, 4);
mPageLayoutPaddingTop = a.getDimensionPixelSize(
R.styleable.PagedView_pageLayoutPaddingTop, 10);
mPageLayoutPaddingBottom = a.getDimensionPixelSize(
R.styleable.PagedView_pageLayoutPaddingBottom, 10);
mPageLayoutPaddingLeft = a.getDimensionPixelSize(
R.styleable.PagedView_pageLayoutPaddingLeft, 10);
mPageLayoutPaddingRight = a.getDimensionPixelSize(
R.styleable.PagedView_pageLayoutPaddingRight, 10);
a.recycle();
mCustomizationType = CustomizationType.WidgetCustomization;
mWidgetPages = new ArrayList<ArrayList<AppWidgetProviderInfo>>();
mWorkspaceWidgetLayout = new PagedViewCellLayout(context);
mInflater = LayoutInflater.from(context);
setVisibility(View.GONE);
setSoundEffectsEnabled(false);
setupWorkspaceLayout();
}
public void setLauncher(Launcher launcher) {
Context context = getContext();
mLauncher = launcher;
mPackageManager = context.getPackageManager();
}
/**
* Sets the list of applications that launcher has loaded.
*/
public void setApps(ArrayList<ApplicationInfo> list) {
mApps = list;
Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR);
// Update the widgets/shortcuts to reflect changes in the set of available apps
update();
}
/**
* Convenience function to add new items to the set of applications that were previously loaded.
* Called by both updateApps() and setApps().
*/
private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) {
// we add it in place, in alphabetical order
final int count = list.size();
for (int i = 0; i < count; ++i) {
final ApplicationInfo info = list.get(i);
final int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR);
if (index < 0) {
mApps.add(-(index + 1), info);
}
}
}
/**
* Adds new applications to the loaded list, and notifies the paged view to update itself.
*/
public void addApps(ArrayList<ApplicationInfo> list) {
addAppsWithoutInvalidate(list);
// Update the widgets/shortcuts to reflect changes in the set of available apps
update();
}
/**
* Convenience function to remove items to the set of applications that were previously loaded.
* Called by both updateApps() and removeApps().
*/
private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) {
// loop through all the apps and remove apps that have the same component
final int length = list.size();
for (int i = 0; i < length; ++i) {
final ApplicationInfo info = list.get(i);
int removeIndex = findAppByComponent(mApps, info);
if (removeIndex > -1) {
mApps.remove(removeIndex);
mPageViewIconCache.removeOutline(info);
}
}
}
/**
* Removes applications from the loaded list, and notifies the paged view to update itself.
*/
public void removeApps(ArrayList<ApplicationInfo> list) {
removeAppsWithoutInvalidate(list);
// Update the widgets/shortcuts to reflect changes in the set of available apps
update();
}
/**
* Updates a set of applications from the loaded list, and notifies the paged view to update
* itself.
*/
public void updateApps(ArrayList<ApplicationInfo> list) {
// We remove and re-add the updated applications list because it's properties may have
// changed (ie. the title), and this will ensure that the items will be in their proper
// place in the list.
removeAppsWithoutInvalidate(list);
addAppsWithoutInvalidate(list);
// Update the widgets/shortcuts to reflect changes in the set of available apps
update();
}
/**
* Convenience function to find matching ApplicationInfos for removal.
*/
private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) {
ComponentName removeComponent = item.intent.getComponent();
final int length = list.size();
for (int i = 0; i < length; ++i) {
ApplicationInfo info = list.get(i);
if (info.intent.getComponent().equals(removeComponent)) {
return i;
}
}
return -1;
}
public void update() {
Context context = getContext();
// get the list of widgets
mWidgetList = AppWidgetManager.getInstance(mLauncher).getInstalledProviders();
Collections.sort(mWidgetList, new Comparator<AppWidgetProviderInfo>() {
@Override
public int compare(AppWidgetProviderInfo object1, AppWidgetProviderInfo object2) {
return object1.label.compareTo(object2.label);
}
});
Comparator<ResolveInfo> resolveInfoComparator = new Comparator<ResolveInfo>() {
@Override
public int compare(ResolveInfo object1, ResolveInfo object2) {
return object1.loadLabel(mPackageManager).toString().compareTo(
object2.loadLabel(mPackageManager).toString());
}
};
// get the list of live folder intents
Intent liveFolderIntent = new Intent(LiveFolders.ACTION_CREATE_LIVE_FOLDER);
mFolderList = mPackageManager.queryIntentActivities(liveFolderIntent, 0);
// manually create a separate entry for creating a folder in Launcher
ResolveInfo folder = new ResolveInfo();
folder.icon = R.drawable.ic_launcher_folder;
folder.labelRes = R.string.group_folder;
folder.resolvePackageName = context.getPackageName();
mFolderList.add(0, folder);
Collections.sort(mFolderList, resolveInfoComparator);
// get the list of shortcuts
Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT);
mShortcutList = mPackageManager.queryIntentActivities(shortcutsIntent, 0);
Collections.sort(mShortcutList, resolveInfoComparator);
// get the list of wallpapers
Intent wallpapersIntent = new Intent(Intent.ACTION_SET_WALLPAPER);
mWallpaperList = mPackageManager.queryIntentActivities(wallpapersIntent, 0);
Collections.sort(mWallpaperList, resolveInfoComparator);
// reset the icon cache
mPageViewIconCache.clear();
// Refresh all the tabs
invalidatePageData();
}
public void setDragController(DragController dragger) {
mDragController = dragger;
}
public void setCustomizationFilter(CustomizationType filterType) {
mCustomizationType = filterType;
setCurrentPage(0);
invalidatePageData();
// End the current choice mode so that we don't carry selections across tabs
endChoiceMode();
}
@Override
public void onDropCompleted(View target, boolean success) {
// do nothing
}
@Override
public void onClick(View v) {
if (!v.isInTouchMode()) {
return;
}
// On certain pages, we allow single tap to mark items as selected so that they can be
// dropped onto the mini workspaces
boolean enterChoiceMode = false;
switch (mCustomizationType) {
case WidgetCustomization:
mChoiceModeTitleText = R.string.cab_widget_selection_text;
enterChoiceMode = true;
break;
case ApplicationCustomization:
mChoiceModeTitleText = R.string.cab_app_selection_text;
enterChoiceMode = true;
break;
case FolderCustomization:
mChoiceModeTitleText = R.string.cab_folder_selection_text;
enterChoiceMode = true;
break;
case ShortcutCustomization:
mChoiceModeTitleText = R.string.cab_shortcut_selection_text;
enterChoiceMode = true;
break;
default:
break;
}
if (enterChoiceMode) {
if (v instanceof Checkable) {
final Checkable c = (Checkable) v;
final boolean wasChecked = c.isChecked();
resetCheckedGrandchildren();
c.setChecked(!wasChecked);
// End the current choice mode when we have no items selected
/*if (!c.isChecked()) {
endChoiceMode();
} else if (isChoiceMode(CHOICE_MODE_NONE)) {
endChoiceMode();
startChoiceMode(CHOICE_MODE_SINGLE, this);
}*/
mChoiceMode = CHOICE_MODE_SINGLE;
Workspace w = mLauncher.getWorkspace();
int currentWorkspaceScreen = mLauncher.getCurrentWorkspaceScreen();
final CellLayout cl = (CellLayout)w.getChildAt(currentWorkspaceScreen);
cl.setHover(true);
animateClickFeedback(v, new Runnable() {
@Override
public void run() {
cl.setHover(false);
mLauncher.onWorkspaceClick(cl);
mChoiceMode = CHOICE_MODE_NONE;
}
});
}
return;
}
// Otherwise, we just handle the single click here
switch (mCustomizationType) {
case WallpaperCustomization:
// animate some feedback to the long press
final View clickView = v;
animateClickFeedback(v, new Runnable() {
@Override
public void run() {
// add the shortcut
ResolveInfo info = (ResolveInfo) clickView.getTag();
Intent createWallpapersIntent = new Intent(Intent.ACTION_SET_WALLPAPER);
ComponentName name = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
createWallpapersIntent.setComponent(name);
mLauncher.processWallpaper(createWallpapersIntent);
}
});
break;
default:
break;
}
}
@Override
public boolean onLongClick(View v) {
if (!v.isInTouchMode()) {
return false;
}
// End the current choice mode before we start dragging anything
if (isChoiceMode(CHOICE_MODE_SINGLE)) {
endChoiceMode();
}
PendingAddItemInfo createItemInfo;
switch (mCustomizationType) {
case WidgetCustomization:
// Get the icon as the drag representation
final LinearLayout l = (LinearLayout) v;
final Drawable icon = ((ImageView) l.findViewById(R.id.widget_preview)).getDrawable();
Bitmap b = Bitmap.createBitmap(icon.getIntrinsicWidth(), icon.getIntrinsicHeight(),
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
icon.draw(c);
createItemInfo = (PendingAddItemInfo) v.getTag();
mDragController.startDrag(v, b, this, createItemInfo, DragController.DRAG_ACTION_COPY,
null);
// Cleanup the icon
b.recycle();
return true;
case FolderCustomization:
if (v.getTag() instanceof UserFolderInfo) {
// The UserFolderInfo tag is only really used for live folders
UserFolderInfo folderInfo = (UserFolderInfo) v.getTag();
mDragController.startDrag(
v, this, folderInfo, DragController.DRAG_ACTION_COPY, null);
} else {
createItemInfo = (PendingAddItemInfo) v.getTag();
mDragController.startDrag(
v, this, createItemInfo, DragController.DRAG_ACTION_COPY, null);
}
return true;
case ShortcutCustomization:
createItemInfo = (PendingAddItemInfo) v.getTag();
mDragController.startDrag(
v, this, createItemInfo, DragController.DRAG_ACTION_COPY, null);
return true;
case ApplicationCustomization:
// Pick up the application for dropping
ApplicationInfo app = (ApplicationInfo) v.getTag();
app = new ApplicationInfo(app);
mDragController.startDrag(v, this, app, DragController.DRAG_ACTION_COPY);
return true;
}
return false;
}
/**
* Pre-processes the layout of the different widget pages.
* @return the number of pages of widgets that we have
*/
private int relayoutWidgets() {
if (mWidgetList.isEmpty()) return 0;
// create a new page for the first set of widgets
ArrayList<AppWidgetProviderInfo> newPage = new ArrayList<AppWidgetProviderInfo>();
mWidgetPages.clear();
mWidgetPages.add(newPage);
// do this until we have no more widgets to lay out
final int maxNumCellsPerRow = mMaxWidgetsCellHSpan;
final int widgetCount = mWidgetList.size();
int numCellsInRow = 0;
for (int i = 0; i < widgetCount; ++i) {
final AppWidgetProviderInfo info = mWidgetList.get(i);
// determine the size of the current widget
int cellSpanX = Math.max(sMinWidgetCellHSpan, Math.min(sMaxWidgetCellHSpan,
mWorkspaceWidgetLayout.estimateCellHSpan(info.minWidth)));
// create a new page if necessary
if ((numCellsInRow + cellSpanX) > maxNumCellsPerRow) {
numCellsInRow = 0;
newPage = new ArrayList<AppWidgetProviderInfo>();
mWidgetPages.add(newPage);
}
// add the item to the current page
newPage.add(info);
numCellsInRow += cellSpanX;
}
return mWidgetPages.size();
}
/**
* This method will extract the preview image specified by the widget developer (if it exists),
* otherwise, it will try to generate a default image preview with the widget's package icon.
* @return the drawable will be used and sized in the ImageView to represent the widget
*/
private Drawable getWidgetIcon(AppWidgetProviderInfo info) {
PackageManager packageManager = mLauncher.getPackageManager();
String packageName = info.provider.getPackageName();
Drawable drawable = null;
if (info.previewImage != 0) {
drawable = packageManager.getDrawable(packageName, info.previewImage, null);
if (drawable == null) {
Log.w(TAG, "Can't load icon drawable 0x" + Integer.toHexString(info.icon)
+ " for provider: " + info.provider);
} else {
return drawable;
}
}
// If we don't have a preview image, create a default one
if (drawable == null) {
Resources resources = mLauncher.getResources();
// Create a new bitmap to hold the widget preview
final int minDim = mWorkspaceWidgetLayout.estimateCellWidth(1);
final int maxDim = mWorkspaceWidgetLayout.estimateCellWidth(3);
int width = (int) (Math.max(minDim, Math.min(maxDim, info.minWidth)) * sScaleFactor);
int height = (int) (Math.max(minDim, Math.min(maxDim, info.minHeight)) * sScaleFactor);
Bitmap bitmap = Bitmap.createBitmap(width, height, Config.ARGB_8888);
mCanvas.setBitmap(bitmap);
// For some reason, we must re-set the clip rect here, otherwise it will be wrong
mCanvas.clipRect(0, 0, width, height, Op.REPLACE);
Drawable background = resources.getDrawable(R.drawable.default_widget_preview);
background.setBounds(0, 0, width, height);
background.draw(mCanvas);
// Draw the icon vertically centered, flush left
try {
Rect tmpRect = new Rect();
Drawable icon = null;
if (info.icon > 0) {
icon = packageManager.getDrawable(packageName, info.icon, null);
}
if (icon == null) {
icon = resources.getDrawable(R.drawable.ic_launcher_application);
}
background.getPadding(tmpRect);
final int iconSize = minDim / 2;
final int offset = iconSize / 4;
icon.setBounds(new Rect(offset, offset, offset + iconSize, offset + iconSize));
icon.draw(mCanvas);
} catch (Resources.NotFoundException e) {
// if we can't find the icon, then just don't draw it
}
drawable = new FastBitmapDrawable(bitmap);
}
drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
return drawable;
}
private void setupPage(PagedViewCellLayout layout) {
layout.setCellCount(mCellCountX, mCellCountY);
layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, mPageLayoutPaddingRight,
mPageLayoutPaddingBottom);
}
private void setupWorkspaceLayout() {
mWorkspaceWidgetLayout.setCellCount(mCellCountX, mCellCountY);
mWorkspaceWidgetLayout.setPadding(20, 10, 20, 0);
mMaxWidgetWidth = mWorkspaceWidgetLayout.estimateCellWidth(sMaxWidgetCellHSpan);
}
private void syncWidgetPages() {
if (mWidgetList == null) return;
// we need to repopulate with the LinearLayout layout for the widget pages
removeAllViews();
int numPages = relayoutWidgets();
for (int i = 0; i < numPages; ++i) {
LinearLayout layout = new WidgetLayout(getContext());
layout.setGravity(Gravity.CENTER_HORIZONTAL);
// Temporary change to prevent the last page from being too small (and items bleeding
// onto it). We can remove this once we properly fix the fading algorithm
if (i < numPages - 1) {
addView(layout, new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT));
} else {
addView(layout, new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
}
}
}
private void syncWidgetPageItems(int page) {
// ensure that we have the right number of items on the pages
LinearLayout layout = (LinearLayout) getChildAt(page);
final ArrayList<AppWidgetProviderInfo> list = mWidgetPages.get(page);
final int count = list.size();
layout.removeAllViews();
for (int i = 0; i < count; ++i) {
AppWidgetProviderInfo info = (AppWidgetProviderInfo) list.get(i);
PendingAddItemInfo createItemInfo = new PendingAddItemInfo();
createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET;
createItemInfo.componentName = info.provider;
LinearLayout l = (LinearLayout) mInflater.inflate(
R.layout.customize_paged_view_widget, layout, false);
l.setTag(createItemInfo);
l.setOnClickListener(this);
l.setOnLongClickListener(this);
final Drawable icon = getWidgetIcon(info);
final int hSpan = mWorkspaceWidgetLayout.estimateCellHSpan(info.minWidth);
final int vSpan = mWorkspaceWidgetLayout.estimateCellHSpan(info.minHeight);
ImageView image = (ImageView) l.findViewById(R.id.widget_preview);
image.setMaxWidth(mMaxWidgetWidth);
image.setImageDrawable(icon);
TextView name = (TextView) l.findViewById(R.id.widget_name);
name.setText(info.label);
TextView dims = (TextView) l.findViewById(R.id.widget_dims);
dims.setText(mContext.getString(R.string.widget_dims_format, hSpan, vSpan));
layout.addView(l);
}
}
private void syncListPages(List<ResolveInfo> list) {
// we need to repopulate with PagedViewCellLayouts
removeAllViews();
// ensure that we have the right number of pages
int numPages = (int) Math.ceil((float) list.size() / (mCellCountX * mCellCountY));
for (int i = 0; i < numPages; ++i) {
PagedViewCellLayout layout = new PagedViewCellLayout(getContext());
setupPage(layout);
addView(layout);
}
}
private void syncListPageItems(int page, List<ResolveInfo> list) {
// ensure that we have the right number of items on the pages
int numCells = mCellCountX * mCellCountY;
int startIndex = page * numCells;
int endIndex = Math.min(startIndex + numCells, list.size());
PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page);
// TODO: we can optimize by just re-applying to existing views
layout.removeAllViews();
for (int i = startIndex; i < endIndex; ++i) {
ResolveInfo info = list.get(i);
PendingAddItemInfo createItemInfo = new PendingAddItemInfo();
PagedViewIcon icon = (PagedViewIcon) mInflater.inflate(
R.layout.customize_paged_view_item, layout, false);
icon.applyFromResolveInfo(info, mPackageManager, mPageViewIconCache);
switch (mCustomizationType) {
case WallpaperCustomization:
icon.setOnClickListener(this);
break;
case FolderCustomization:
if (info.labelRes != R.string.group_folder) {
createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER;
createItemInfo.componentName = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
icon.setTag(createItemInfo);
} else {
UserFolderInfo folderInfo = new UserFolderInfo();
folderInfo.title = getResources().getText(R.string.folder_name);
icon.setTag(folderInfo);
}
icon.setOnClickListener(this);
icon.setOnLongClickListener(this);
break;
case ShortcutCustomization:
createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT;
createItemInfo.componentName = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
icon.setTag(createItemInfo);
icon.setOnClickListener(this);
icon.setOnLongClickListener(this);
break;
default:
break;
}
final int index = i - startIndex;
final int x = index % mCellCountX;
final int y = index / mCellCountX;
setupPage(layout);
layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1));
}
}
private void syncAppPages() {
if (mApps == null) return;
// We need to repopulate with PagedViewCellLayouts
removeAllViews();
// Ensure that we have the right number of pages
int numPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY));
for (int i = 0; i < numPages; ++i) {
PagedViewCellLayout layout = new PagedViewCellLayout(getContext());
setupPage(layout);
addView(layout);
}
}
private void syncAppPageItems(int page) {
if (mApps == null) return;
// ensure that we have the right number of items on the pages
int numCells = mCellCountX * mCellCountY;
int startIndex = page * numCells;
int endIndex = Math.min(startIndex + numCells, mApps.size());
PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(page);
// TODO: we can optimize by just re-applying to existing views
layout.removeAllViews();
for (int i = startIndex; i < endIndex; ++i) {
final ApplicationInfo info = mApps.get(i);
PagedViewIcon icon = (PagedViewIcon) mInflater.inflate(
R.layout.all_apps_paged_view_application, layout, false);
icon.applyFromApplicationInfo(info, mPageViewIconCache);
icon.setOnClickListener(this);
icon.setOnLongClickListener(this);
final int index = i - startIndex;
final int x = index % mCellCountX;
final int y = index / mCellCountX;
setupPage(layout);
layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1));
}
}
@Override
public void syncPages() {
boolean centerPagedViewCellLayouts = false;
switch (mCustomizationType) {
case WidgetCustomization:
syncWidgetPages();
break;
case FolderCustomization:
syncListPages(mFolderList);
centerPagedViewCellLayouts = true;
break;
case ShortcutCustomization:
syncListPages(mShortcutList);
centerPagedViewCellLayouts = true;
break;
case WallpaperCustomization:
syncListPages(mWallpaperList);
centerPagedViewCellLayouts = true;
break;
case ApplicationCustomization:
syncAppPages();
centerPagedViewCellLayouts = false;
break;
default:
removeAllViews();
setCurrentPage(0);
break;
}
// only try and center the page if there is one page
final int childCount = getChildCount();
if (centerPagedViewCellLayouts) {
if (childCount == 1) {
PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(0);
layout.enableCenteredContent(true);
} else {
for (int i = 0; i < childCount; ++i) {
PagedViewCellLayout layout = (PagedViewCellLayout) getChildAt(i);
layout.enableCenteredContent(false);
}
}
}
// bound the current page
setCurrentPage(Math.max(0, Math.min(childCount - 1, getCurrentPage())));
}
@Override
public void syncPageItems(int page) {
switch (mCustomizationType) {
case WidgetCustomization:
syncWidgetPageItems(page);
break;
case FolderCustomization:
syncListPageItems(page, mFolderList);
break;
case ShortcutCustomization:
syncListPageItems(page, mShortcutList);
break;
case WallpaperCustomization:
syncListPageItems(page, mWallpaperList);
break;
case ApplicationCustomization:
syncAppPageItems(page);
break;
}
}
@Override
protected int getAssociatedLowerPageBound(int page) {
return 0;
}
@Override
protected int getAssociatedUpperPageBound(int page) {
return getChildCount();
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
mode.setTitle(mChoiceModeTitleText);
return true;
}
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
return true;
}
@Override
public void onDestroyActionMode(ActionMode mode) {
endChoiceMode();
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
return false;
}
}