Bug 5061529 - Save/restore action view state for menu items across (038f1c80) · Commits · e / os / android_frameworks_base

api/current.txt

+5 −0

Original line number	Diff line number	Diff line
		@@ -21004,6 +21004,11 @@ package android.view {
		method public void onPrepareSubMenu(android.view.SubMenu);
		}

		public abstract interface CollapsibleActionView {
		method public abstract void onActionViewCollapsed();
		method public abstract void onActionViewExpanded();
		}

		public abstract interface ContextMenu implements android.view.Menu {
		method public abstract void clearHeader();
		method public abstract android.view.ContextMenu setHeaderIcon(int);

core/java/android/view/CollapsibleActionView.java

0 → 100644

+39 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2011 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 android.view;

		/**
		* When a {@link View} implements this interface it will receive callbacks
		* when expanded or collapsed as an action view alongside the optional,
		* app-specified callbacks to {@link OnActionExpandListener}.
		*
		* <p>See {@link MenuItem} for more information about action views.
		* See {@link android.app.ActionBar} for more information about the action bar.
		*/
		public interface CollapsibleActionView {
		/**
		* Called when this view is expanded as an action view.
		* See {@link MenuItem#expandActionView()}.
		*/
		public void onActionViewExpanded();

		/**
		* Called when this view is collapsed as an action view.
		* See {@link MenuItem#collapseActionView()}.
		*/
		public void onActionViewCollapsed();
		}

core/java/com/android/internal/view/menu/MenuBuilder.java

+63 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,8 @@ public class MenuBuilder implements Menu {
		private static final String LOGTAG = "MenuBuilder";

		private static final String PRESENTER_KEY = "android:menu:presenters";
		private static final String ACTION_VIEW_STATES_KEY = "android:menu:actionviewstates";
		private static final String EXPANDED_ACTION_VIEW_ID = "android:menu:expandedactionview";

		private static final int[] sCategoryToOrder = new int[] {
		1, /* No category */
		@@ -308,6 +310,67 @@ public class MenuBuilder implements Menu {
		dispatchRestoreInstanceState(state);
		}

		public void saveActionViewStates(Bundle outStates) {
		SparseArray<Parcelable> viewStates = null;

		final int itemCount = size();
		for (int i = 0; i < itemCount; i++) {
		final MenuItem item = getItem(i);
		final View v = item.getActionView();
		if (v != null && v.getId() != View.NO_ID) {
		if (viewStates == null) {
		viewStates = new SparseArray<Parcelable>();
		}
		v.saveHierarchyState(viewStates);
		if (item.isActionViewExpanded()) {
		outStates.putInt(EXPANDED_ACTION_VIEW_ID, item.getItemId());
		}
		}
		if (item.hasSubMenu()) {
		final SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
		subMenu.saveActionViewStates(outStates);
		}
		}

		if (viewStates != null) {
		outStates.putSparseParcelableArray(getActionViewStatesKey(), viewStates);
		}
		}

		public void restoreActionViewStates(Bundle states) {
		if (states == null) {
		return;
		}

		SparseArray<Parcelable> viewStates = states.getSparseParcelableArray(
		getActionViewStatesKey());

		final int itemCount = size();
		for (int i = 0; i < itemCount; i++) {
		final MenuItem item = getItem(i);
		final View v = item.getActionView();
		if (v != null && v.getId() != View.NO_ID) {
		v.restoreHierarchyState(viewStates);
		}
		if (item.hasSubMenu()) {
		final SubMenuBuilder subMenu = (SubMenuBuilder) item.getSubMenu();
		subMenu.restoreActionViewStates(states);
		}
		}

		final int expandedId = states.getInt(EXPANDED_ACTION_VIEW_ID);
		if (expandedId > 0) {
		MenuItem itemToExpand = findItem(expandedId);
		if (itemToExpand != null) {
		itemToExpand.expandActionView();
		}
		}
		}

		protected String getActionViewStatesKey() {
		return ACTION_VIEW_STATES_KEY;
		}

		public void setCallback(Callback cb) {
		mCallback = cb;
		}

core/java/com/android/internal/view/menu/MenuItemImpl.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -553,6 +553,9 @@ public final class MenuItemImpl implements MenuItem {
		public MenuItem setActionView(View view) {
		mActionView = view;
		mActionProvider = null;
		if (view != null && view.getId() == View.NO_ID && mId > 0) {
		view.setId(mId);
		}
		mMenu.onItemActionRequestChanged(this);
		return this;
		}

core/java/com/android/internal/view/menu/SubMenuBuilder.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -121,4 +121,13 @@ public class SubMenuBuilder extends MenuBuilder implements SubMenu {
		public boolean collapseItemActionView(MenuItemImpl item) {
		return mParentMenu.collapseItemActionView(item);
		}

		@Override
		public String getActionViewStatesKey() {
		final int itemId = mItem != null ? mItem.getItemId() : 0;
		if (itemId == 0) {
		return null;
		}
		return super.getActionViewStatesKey() + ":" + itemId;
		}
		}