Updating search bar animation, and adding use of hw layers.

Change-Id: Ida06bb526876abc793366415df1e06f483f3b66c

2 files changed, 29 insertions, 15 deletions

diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 2e7caff3d..84fb9d066 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -2368,6 +2368,9 @@ public final class Launcher extends Activity
                     if (!animationCancelled) {
                         updateWallpaperVisibility(false);
                     }
+
+                    // Hide the search bar
+                    mSearchDropTargetBar.hideSearchBar(false);
                 }
 
                 @Override
@@ -2436,6 +2439,9 @@ public final class Launcher extends Activity
                 // Hide the workspace scrollbar
                 mWorkspace.hideScrollingIndicator(true);
                 hideDockDivider();
+
+                // Hide the search bar
+                mSearchDropTargetBar.hideSearchBar(false);
             }
             dispatchOnLauncherTransitionPrepare(fromView, animated, false);
             dispatchOnLauncherTransitionStart(fromView, animated, false);
@@ -2569,13 +2575,16 @@ public final class Launcher extends Activity
 
     void showWorkspace(boolean animated, Runnable onCompleteRunnable) {
         if (mState != State.WORKSPACE) {
+            boolean wasInSpringLoadedMode = (mState == State.APPS_CUSTOMIZE_SPRING_LOADED);
             mWorkspace.setVisibility(View.VISIBLE);
             hideAppsCustomizeHelper(State.WORKSPACE, animated, false, onCompleteRunnable);
 
-            // Show the search bar and hotseat
-            mSearchDropTargetBar.showSearchBar(animated);
+            // Show the search bar (only animate if we were showing the drop target bar in spring
+            // loaded mode)
+            mSearchDropTargetBar.showSearchBar(wasInSpringLoadedMode);
+
             // We only need to animate in the dock divider if we're going from spring loaded mode
-            showDockDivider(animated && mState == State.APPS_CUSTOMIZE_SPRING_LOADED);
+            showDockDivider(animated && wasInSpringLoadedMode);
 
             // Set focus to the AppsCustomize button
             if (mAllAppsButton != null) {
@@ -2602,9 +2611,6 @@ public final class Launcher extends Activity
         showAppsCustomizeHelper(animated, false);
         mAppsCustomizeTabHost.requestFocus();
 
-        // Hide the search bar and hotseat
-        mSearchDropTargetBar.hideSearchBar(animated);
-
         // Change the state *after* we've called all the transition code
         mState = State.APPS_CUSTOMIZE;
 
@@ -2637,7 +2643,6 @@ public final class Launcher extends Activity
                     // exitSpringLoadedDragMode made it visible. This is a bit hacky; we should
                     // clean up our state transition functions
                     mAppsCustomizeTabHost.setVisibility(View.GONE);
-                    mSearchDropTargetBar.showSearchBar(true);
                     showWorkspace(true, onCompleteRunnable);
                 } else {
                     exitSpringLoadedDragMode();
diff --git a/src/com/android/launcher2/SearchDropTargetBar.java b/src/com/android/launcher2/SearchDropTargetBar.java
index 03512b2f1..a01fd3a01 100644
--- a/src/com/android/launcher2/SearchDropTargetBar.java
+++ b/src/com/android/launcher2/SearchDropTargetBar.java
@@ -75,6 +75,13 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
         mDeleteDropTarget.setLauncher(launcher);
     }
 
+    // This sets up the view for the animation
+    private void prepareStartAnimation(View v) {
+        // Enable the hw layers (which will be disabled in the onAnimationEnd callback below
+        v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
+        v.buildLayer();
+    }
+
     private void prepareAnimation(ObjectAnimator in, ObjectAnimator out, final View v) {
         in.setInterpolator(new AccelerateInterpolator());
         in.setDuration(sTransitionInDuration);
@@ -84,7 +91,7 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
                 v.setVisibility(View.VISIBLE);
             }
         });
-        out.setInterpolator(new DecelerateInterpolator());
+        out.setInterpolator(new AccelerateInterpolator());
         out.setDuration(sTransitionOutDuration);
         out.addListener(new AnimatorListenerAdapter() {
             @Override
@@ -139,9 +146,7 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
         mQSBSearchBarFadeOutAnim.end();
     }
 
-    private void cancelAnimations() {
-        mDropTargetBarFadeInAnim.cancel();
-        mDropTargetBarFadeOutAnim.cancel();
+    private void cancelSearchBarAnimations() {
         mQSBSearchBarFadeInAnim.cancel();
         mQSBSearchBarFadeOutAnim.cancel();
     }
@@ -150,8 +155,9 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
      * Shows and hides the search bar.
      */
     public void showSearchBar(boolean animated) {
-        cancelAnimations();
+        cancelSearchBarAnimations();
         if (animated) {
+            prepareStartAnimation(mQSBSearchBar);
             mQSBSearchBarFadeInAnim.start();
         } else {
             mQSBSearchBar.setVisibility(View.VISIBLE);
@@ -164,8 +170,9 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
         mIsSearchBarHidden = false;
     }
     public void hideSearchBar(boolean animated) {
-        cancelAnimations();
+        cancelSearchBarAnimations();
         if (animated) {
+            prepareStartAnimation(mQSBSearchBar);
             mQSBSearchBarFadeOutAnim.start();
         } else {
             mQSBSearchBar.setVisibility(View.INVISIBLE);
@@ -194,11 +201,11 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
     @Override
     public void onDragStart(DragSource source, Object info, int dragAction) {
         // Animate out the QSB search bar, and animate in the drop target bar
-        mDropTargetBar.setLayerType(View.LAYER_TYPE_HARDWARE, null);
-        mDropTargetBar.buildLayer();
+        prepareStartAnimation(mDropTargetBar);
         mDropTargetBarFadeOutAnim.cancel();
         mDropTargetBarFadeInAnim.start();
         if (!mIsSearchBarHidden) {
+            prepareStartAnimation(mQSBSearchBar);
             mQSBSearchBarFadeInAnim.cancel();
             mQSBSearchBarFadeOutAnim.start();
         }
@@ -212,9 +219,11 @@ public class SearchDropTargetBar extends FrameLayout implements DragController.D
     public void onDragEnd() {
         if (!mDeferOnDragEnd) {
             // Restore the QSB search bar, and animate out the drop target bar
+            prepareStartAnimation(mDropTargetBar);
             mDropTargetBarFadeInAnim.cancel();
             mDropTargetBarFadeOutAnim.start();
             if (!mIsSearchBarHidden) {
+                prepareStartAnimation(mQSBSearchBar);
                 mQSBSearchBarFadeOutAnim.cancel();
                 mQSBSearchBarFadeInAnim.start();
             }