Example usage for android.view ViewGroup invalidate

Introduction

In this page you can find the example usage for android.view ViewGroup invalidate.

Prototype

public void invalidate() 

Source Link

Document

Invalidate the whole view.

Usage

From source file:com.android.launcher4.Workspace.java

/**
 * Removes items that match the item info specified. When applications are removed
 * as a part of an update, this is called to ensure that other widgets and application
 * shortcuts are not removed.//w w w .  j a v  a  2s.  c o  m
 */
void removeItemsByComponentName(final HashSet<ComponentName> componentNames, final UserHandleCompat user) {
    ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
    for (final CellLayout layoutParent : cellLayouts) {
        final ViewGroup layout = layoutParent.getShortcutsAndWidgets();

        final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>();
        for (int j = 0; j < layout.getChildCount(); j++) {
            final View view = layout.getChildAt(j);
            children.put((ItemInfo) view.getTag(), view);
        }

        final ArrayList<View> childrenToRemove = new ArrayList<View>();
        final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = new HashMap<FolderInfo, ArrayList<ShortcutInfo>>();
        LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() {
            @Override
            public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) {
                if (parent instanceof FolderInfo) {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        FolderInfo folder = (FolderInfo) parent;
                        ArrayList<ShortcutInfo> appsToRemove;
                        if (folderAppsToRemove.containsKey(folder)) {
                            appsToRemove = folderAppsToRemove.get(folder);
                        } else {
                            appsToRemove = new ArrayList<ShortcutInfo>();
                            folderAppsToRemove.put(folder, appsToRemove);
                        }
                        appsToRemove.add((ShortcutInfo) info);
                        return true;
                    }
                } else {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        childrenToRemove.add(children.get(info));
                        return true;
                    }
                }
                return false;
            }
        };
        LauncherModel.filterItemInfos(children.keySet(), filter);

        // Remove all the apps from their folders
        for (FolderInfo folder : folderAppsToRemove.keySet()) {
            ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder);
            for (ShortcutInfo info : appsToRemove) {
                folder.remove(info);
            }
        }

        // Remove all the other children
        for (View child : childrenToRemove) {
            // Note: We can not remove the view directly from CellLayoutChildren as this
            // does not re-mark the spaces as unoccupied.
            layoutParent.removeViewInLayout(child);
            if (child instanceof DropTarget) {
                mDragController.removeDropTarget((DropTarget) child);
            }
        }

        if (childrenToRemove.size() > 0) {
            layout.requestLayout();
            layout.invalidate();
        }
    }

    // Strip all the empty screens
    stripEmptyScreens();
}

---

From source file:com.upchannel.launcher3.Workspace.java

void removeItemsByComponentName(final HashSet<ComponentName> componentNames, final UserHandleCompat user) {
    ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
    for (final CellLayout layoutParent : cellLayouts) {
        final ViewGroup layout = layoutParent.getShortcutsAndWidgets();

        final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>();
        for (int j = 0; j < layout.getChildCount(); j++) {
            final View view = layout.getChildAt(j);
            children.put((ItemInfo) view.getTag(), view);
        }// w  ww.  j av  a 2s  .c  om

        final ArrayList<View> childrenToRemove = new ArrayList<View>();
        final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = new HashMap<FolderInfo, ArrayList<ShortcutInfo>>();
        LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() {
            @Override
            public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) {
                if (parent instanceof FolderInfo) {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        FolderInfo folder = (FolderInfo) parent;
                        ArrayList<ShortcutInfo> appsToRemove;
                        if (folderAppsToRemove.containsKey(folder)) {
                            appsToRemove = folderAppsToRemove.get(folder);
                        } else {
                            appsToRemove = new ArrayList<ShortcutInfo>();
                            folderAppsToRemove.put(folder, appsToRemove);
                        }
                        appsToRemove.add((ShortcutInfo) info);
                        return true;
                    }
                } else {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        childrenToRemove.add(children.get(info));
                        return true;
                    }
                }
                return false;
            }
        };
        LauncherModel.filterItemInfos(children.keySet(), filter);

        // Remove all the apps from their folders
        for (FolderInfo folder : folderAppsToRemove.keySet()) {
            ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder);
            for (ShortcutInfo info : appsToRemove) {
                folder.remove(info);
            }
        }

        // Remove all the other children
        for (View child : childrenToRemove) {
            // Note: We can not remove the view directly from CellLayoutChildren as this
            // does not re-mark the spaces as unoccupied.
            layoutParent.removeViewInLayout(child);
            if (child instanceof DropTarget) {
                mDragController.removeDropTarget((DropTarget) child);
            }
        }

        if (childrenToRemove.size() > 0) {
            layout.requestLayout();
            layout.invalidate();
        }
    }

    // Strip all the empty screens
    stripEmptyScreens();
}

---

From source file:com.android.launcher3.Workspace.java

/**
 * Removes items that match the item info specified. When applications are removed
 * as a part of an update, this is called to ensure that other widgets and application
 * shortcuts are not removed.//from   w  w w  . ja  v  a  2  s. com
 */
void removeItemsByComponentName(final HashSet<ComponentName> componentNames, final UserHandleCompat user) {
    ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
    for (final CellLayout layoutParent : cellLayouts) {
        final ViewGroup layout = layoutParent.getShortcutsAndWidgets();

        final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>();
        for (int j = 0; j < layout.getChildCount(); j++) {
            final View view = layout.getChildAt(j);
            children.put((ItemInfo) view.getTag(), view);
        }

        final ArrayList<View> childrenToRemove = new ArrayList<View>();
        final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = new HashMap<FolderInfo, ArrayList<ShortcutInfo>>();
        LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() {
            @Override
            public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) {
                if (parent instanceof FolderInfo) {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        FolderInfo folder = (FolderInfo) parent;
                        ArrayList<ShortcutInfo> appsToRemove;
                        if (folderAppsToRemove.containsKey(folder)) {
                            appsToRemove = folderAppsToRemove.get(folder);
                        } else {
                            appsToRemove = new ArrayList<ShortcutInfo>();
                            folderAppsToRemove.put(folder, appsToRemove);
                        }
                        appsToRemove.add((ShortcutInfo) info);
                        return true;
                    }
                } else {
                    if (componentNames.contains(cn) && info.user.equals(user)) {
                        childrenToRemove.add(children.get(info));
                        return true;
                    }
                }
                return false;
            }
        };
        LauncherModel.filterItemInfos(children.keySet(), filter);

        /*SPRD: bug410501 coverity 105605 problem, Inefficient Map Iterator, 2015-3-3. @{
        // Remove all the apps from their folders
        for (FolderInfo folder : folderAppsToRemove.keySet()) {
        ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder);
        for (ShortcutInfo info : appsToRemove) {
            folder.remove(info);
        }
        }*/
        Iterator iter = folderAppsToRemove.entrySet().iterator();
        while (iter.hasNext()) {
            Map.Entry<FolderInfo, ArrayList<ShortcutInfo>> entry = (Map.Entry<FolderInfo, ArrayList<ShortcutInfo>>) iter
                    .next();
            FolderInfo folder = entry.getKey();
            ArrayList<ShortcutInfo> appsToRemove = entry.getValue();
            for (ShortcutInfo info : appsToRemove) {
                folder.remove(info);
            }
        }
        /*SPRD: bug410501 coverity 105605 problem, Inefficient Map Iterator, 2015-3-3. @{*/

        // Remove all the other children
        for (View child : childrenToRemove) {
            // Note: We can not remove the view directly from CellLayoutChildren as this
            // does not re-mark the spaces as unoccupied.
            layoutParent.removeViewInLayout(child);
            if (child instanceof DropTarget) {
                mDragController.removeDropTarget((DropTarget) child);
            }
        }

        if (childrenToRemove.size() > 0) {
            layout.requestLayout();
            layout.invalidate();
        }
    }

    // Strip all the empty screens
    stripEmptyScreens();
}

---

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