Animate ActionBar items (952cba2e) · Commits · e / os / android_frameworks_base

core/java/android/widget/ActionMenuPresenter.java

+247 −13

Original line number	Diff line number	Diff line
		@@ -16,6 +16,10 @@

		package android.widget;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.ObjectAnimator;
		import android.animation.PropertyValuesHolder;
		import android.content.Context;
		import android.content.res.ColorStateList;
		import android.content.res.Configuration;
		@@ -24,6 +28,7 @@ import android.graphics.PorterDuff;
		import android.graphics.drawable.Drawable;
		import android.os.Parcel;
		import android.os.Parcelable;
		import android.util.SparseArray;
		import android.util.SparseBooleanArray;
		import android.view.ActionProvider;
		import android.view.Gravity;
		@@ -32,6 +37,7 @@ import android.view.SoundEffectConstants;
		import android.view.View;
		import android.view.View.MeasureSpec;
		import android.view.ViewGroup;
		import android.view.ViewTreeObserver;
		import android.view.accessibility.AccessibilityNodeInfo;
		import android.widget.ListPopupWindow.ForwardingListener;
		import com.android.internal.transition.ActionBarTransition;
		@@ -45,6 +51,7 @@ import com.android.internal.view.menu.MenuView;
		import com.android.internal.view.menu.SubMenuBuilder;

		import java.util.ArrayList;
		import java.util.List;

		/**
		* MenuPresenter for building action menus as seen in the action bar and action modes.
		@@ -54,6 +61,7 @@ import java.util.ArrayList;
		public class ActionMenuPresenter extends BaseMenuPresenter
		implements ActionProvider.SubUiVisibilityListener {
		private static final String TAG = "ActionMenuPresenter";
		private static final int ITEM_ANIMATION_DURATION = 150;

		private OverflowMenuButton mOverflowButton;
		private boolean mReserveOverflow;
		@@ -71,8 +79,6 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		// Group IDs that have been added as actions - used temporarily, allocated here for reuse.
		private final SparseBooleanArray mActionButtonGroups = new SparseBooleanArray();

		private View mScrapActionButtonView;

		private OverflowPopup mOverflowPopup;
		private ActionButtonSubmenu mActionButtonPopup;

		@@ -84,6 +90,18 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		final PopupPresenterCallback mPopupPresenterCallback = new PopupPresenterCallback();
		int mOpenSubMenuId;

		// These collections are used to store pre- and post-layout information for menu items,
		// which is used to determine appropriate animations to run for changed items.
		private SparseArray<MenuItemLayoutInfo> mPreLayoutItems =
		new SparseArray<MenuItemLayoutInfo>();
		private SparseArray<MenuItemLayoutInfo> mPostLayoutItems =
		new SparseArray<MenuItemLayoutInfo>();

		// The list of currently running animations on menu items.
		private List<ItemAnimationInfo> mRunningItemAnimations = new ArrayList<ItemAnimationInfo>();



		public ActionMenuPresenter(Context context) {
		super(context, com.android.internal.R.layout.action_menu_layout,
		com.android.internal.R.layout.action_menu_item_layout);
		@@ -125,9 +143,6 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		mActionItemWidthLimit = width;

		mMinCellSize = (int) (ActionMenuView.MIN_CELL_SIZE * res.getDisplayMetrics().density);

		// Drop a scrap view as it may no longer reflect the proper context/config.
		mScrapActionButtonView = null;
		}

		public void onConfigurationChanged(Configuration newConfig) {
		@@ -202,10 +217,186 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		return item.isActionButton();
		}

		/**
		* Store layout information about current items in the menu. This is stored for
		* both pre- and post-layout phases and compared in runItemAnimations() to determine
		* the animations that need to be run on any item changes.
		*
		* @param preLayout Whether this is being called in the pre-layout phase. This is passed
		* into the MenuItemLayoutInfo structure to store the appropriate position values.
		*/
		private void computeMenuItemAnimationInfo(boolean preLayout) {
		final ViewGroup menuViewParent = (ViewGroup) mMenuView;
		final int count = menuViewParent.getChildCount();
		SparseArray items = preLayout ? mPreLayoutItems : mPostLayoutItems;
		for (int i = 0; i < count; ++i) {
		View child = menuViewParent.getChildAt(i);
		final int id = child.getId();
		if (id > 0 && child.getWidth() != 0 && child.getHeight() != 0) {
		MenuItemLayoutInfo info = new MenuItemLayoutInfo(child, preLayout);
		items.put(id, info);
		}
		}
		}

		/**
		* This method is called once both the pre-layout and post-layout steps have
		* happened. It figures out which views are new (didn't exist prior to layout),
		* gone (existed pre-layout, but are now gone), or changed (exist in both,
		* but in a different location) and runs appropriate animations on those views.
		* Items are tracked by ids, since the underlying views that represent items
		* pre- and post-layout may be different.
		*/
		private void runItemAnimations() {
		for (int i = 0; i < mPreLayoutItems.size(); ++i) {
		int id = mPreLayoutItems.keyAt(i);
		final MenuItemLayoutInfo menuItemLayoutInfoPre = mPreLayoutItems.get(id);
		final int postLayoutIndex = mPostLayoutItems.indexOfKey(id);
		if (postLayoutIndex >= 0) {
		// item exists pre and post: see if it's changed
		final MenuItemLayoutInfo menuItemLayoutInfoPost =
		mPostLayoutItems.valueAt(postLayoutIndex);
		PropertyValuesHolder pvhX = null;
		PropertyValuesHolder pvhY = null;
		if (menuItemLayoutInfoPre.left != menuItemLayoutInfoPost.left) {
		pvhX = PropertyValuesHolder.ofFloat(View.TRANSLATION_X,
		(menuItemLayoutInfoPre.left - menuItemLayoutInfoPost.left), 0);
		}
		if (menuItemLayoutInfoPre.top != menuItemLayoutInfoPost.top) {
		pvhY = PropertyValuesHolder.ofFloat(View.TRANSLATION_Y,
		menuItemLayoutInfoPre.top - menuItemLayoutInfoPost.top, 0);
		}
		if (pvhX != null \|\| pvhY != null) {
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j);
		if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.MOVE) {
		oldInfo.animator.cancel();
		}
		}
		ObjectAnimator anim;
		if (pvhX != null) {
		if (pvhY != null) {
		anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view,
		pvhX, pvhY);
		} else {
		anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view, pvhX);
		}
		} else {
		anim = ObjectAnimator.ofPropertyValuesHolder(menuItemLayoutInfoPost.view, pvhY);
		}
		anim.setDuration(ITEM_ANIMATION_DURATION);
		anim.start();
		ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfoPost, anim,
		ItemAnimationInfo.MOVE);
		mRunningItemAnimations.add(info);
		anim.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		if (mRunningItemAnimations.get(j).animator == animation) {
		mRunningItemAnimations.remove(j);
		break;
		}
		}
		}
		});
		}
		mPostLayoutItems.remove(id);
		} else {
		// item used to be there, is now gone
		float oldAlpha = 1;
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j);
		if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.FADE_IN) {
		oldAlpha = oldInfo.menuItemLayoutInfo.view.getAlpha();
		oldInfo.animator.cancel();
		}
		}
		ObjectAnimator anim = ObjectAnimator.ofFloat(menuItemLayoutInfoPre.view, View.ALPHA,
		oldAlpha, 0);
		// Re-using the view from pre-layout assumes no view recycling
		((ViewGroup) mMenuView).getOverlay().add(menuItemLayoutInfoPre.view);
		anim.setDuration(ITEM_ANIMATION_DURATION);
		anim.start();
		ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfoPre, anim, ItemAnimationInfo.FADE_OUT);
		mRunningItemAnimations.add(info);
		anim.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		if (mRunningItemAnimations.get(j).animator == animation) {
		mRunningItemAnimations.remove(j);
		break;
		}
		}
		((ViewGroup) mMenuView).getOverlay().remove(menuItemLayoutInfoPre.view);
		}
		});
		}
		}
		for (int i = 0; i < mPostLayoutItems.size(); ++i) {
		int id = mPostLayoutItems.keyAt(i);
		final int postLayoutIndex = mPostLayoutItems.indexOfKey(id);
		if (postLayoutIndex >= 0) {
		// item is new
		final MenuItemLayoutInfo menuItemLayoutInfo =
		mPostLayoutItems.valueAt(postLayoutIndex);
		float oldAlpha = 0;
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		ItemAnimationInfo oldInfo = mRunningItemAnimations.get(j);
		if (oldInfo.id == id && oldInfo.animType == ItemAnimationInfo.FADE_OUT) {
		oldAlpha = oldInfo.menuItemLayoutInfo.view.getAlpha();
		oldInfo.animator.cancel();
		}
		}
		ObjectAnimator anim = ObjectAnimator.ofFloat(menuItemLayoutInfo.view, View.ALPHA,
		oldAlpha, 1);
		anim.start();
		anim.setDuration(ITEM_ANIMATION_DURATION);
		ItemAnimationInfo info = new ItemAnimationInfo(id, menuItemLayoutInfo, anim, ItemAnimationInfo.FADE_IN);
		mRunningItemAnimations.add(info);
		anim.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		for (int j = 0; j < mRunningItemAnimations.size(); ++j) {
		if (mRunningItemAnimations.get(j).animator == animation) {
		mRunningItemAnimations.remove(j);
		break;
		}
		}
		}
		});
		}
		}
		mPreLayoutItems.clear();
		mPostLayoutItems.clear();
		}

		/**
		* Gets position/existence information on menu items before and after layout,
		* which is then fed into runItemAnimations()
		*/
		private void setupItemAnimations() {
		final ViewGroup menuViewParent = (ViewGroup) mMenuView;
		computeMenuItemAnimationInfo(true);
		final ViewTreeObserver observer = menuViewParent.getViewTreeObserver();
		if (observer != null) {
		observer.addOnDrawListener(new ViewTreeObserver.OnDrawListener() {
		@Override
		public void onDraw() {
		computeMenuItemAnimationInfo(false);
		observer.removeOnDrawListener(this);
		runItemAnimations();
		}
		});
		}
		}

		@Override
		public void updateMenuView(boolean cleared) {
		final ViewGroup menuViewParent = (ViewGroup) ((View) mMenuView).getParent();
		if (menuViewParent != null) {
		setupItemAnimations();
		ActionBarTransition.beginDelayedTransition(menuViewParent);
		}
		super.updateMenuView(cleared);
		@@ -431,10 +622,7 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		MenuItemImpl item = visibleItems.get(i);

		if (item.requiresActionButton()) {
		View v = getItemView(item, mScrapActionButtonView, parent);
		if (mScrapActionButtonView == null) {
		mScrapActionButtonView = v;
		}
		View v = getItemView(item, null, parent);
		if (mStrictWidthLimit) {
		cellsRemaining -= ActionMenuView.measureChildForCells(v,
		cellSize, cellsRemaining, querySpec, 0);
		@@ -460,10 +648,7 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		(!mStrictWidthLimit \|\| cellsRemaining > 0);

		if (isAction) {
		View v = getItemView(item, mScrapActionButtonView, parent);
		if (mScrapActionButtonView == null) {
		mScrapActionButtonView = v;
		}
		View v = getItemView(item, null, parent);
		if (mStrictWidthLimit) {
		final int cells = ActionMenuView.measureChildForCells(v,
		cellSize, cellsRemaining, querySpec, 0);
		@@ -819,4 +1004,53 @@ public class ActionMenuPresenter extends BaseMenuPresenter
		boolean mHasTintMode;
		boolean mHasTintList;
		}

		/**
		* This class holds layout information for a menu item. This is used to determine
		* pre- and post-layout information about menu items, which will then be used to
		* determine appropriate item animations.
		*/
		private static class MenuItemLayoutInfo {
		View view;
		int left;
		int top;

		MenuItemLayoutInfo(View view, boolean preLayout) {
		left = view.getLeft();
		top = view.getTop();
		if (preLayout) {
		// We track translation for pre-layout because a view might be mid-animation
		// and we need this information to know where to animate from
		left += view.getTranslationX();
		top += view.getTranslationY();
		}
		this.view = view;
		}
		}

		/**
		* This class is used to store information about currently-running item animations.
		* This is used when new animations are scheduled to determine whether any existing
		* animations need to be canceled, based on whether the running animations overlap
		* with any new animations. For example, if an item is currently animating from
		* location A to B and another change dictates that it be animated to C, then the current
		* A-B animation will be canceled and a new animation to C will be started.
		*/
		private static class ItemAnimationInfo {
		int id;
		MenuItemLayoutInfo menuItemLayoutInfo;
		Animator animator;
		int animType;
		static final int MOVE = 0;
		static final int FADE_IN = 1;
		static final int FADE_OUT = 2;

		ItemAnimationInfo(int id, MenuItemLayoutInfo info, Animator anim, int animType) {
		this.id = id;
		menuItemLayoutInfo = info;
		animator = anim;
		this.animType = animType;
		}
		}

		}