0001-EXPERIMENTAL-Launcher2-Improve-launcher-app-launchin.patch

From 2ed0277ea51a662efc8c8c40bc855103353b0c99 Mon Sep 17 00:00:00 2001
From: Liam Mark <lmark@codeaurora.org>
Date: Thu, 17 May 2012 10:14:41 -0700
Subject: [PATCH] EXPERIMENTAL: Launcher2: Improve launcher app launching
 performance

To improve performance change the default behavior
of the launcher so that after onclick it immediately
launches the app instead of waiting for the icon animation
to finish. Also to improve performance simplify the icon
animation and start the animation on pointer down.

To change the default behavior back to its original
behavior set the POST_CLICK_ANIMATE
compile-time option to true.

CRs-Fixed: 373773
(cherry picked from commit ab0f2a1b9a814036dd2bea6f6674af58759c77f5)

Change-Id: I1bc19ed7c817f464e4f2925f8f2dd4f8cd04b8b8
---
 .../trebuchet/AppsCustomizePagedView.java          |   21 +++++++++-----
 src/com/cyanogenmod/trebuchet/PagedView.java       |   17 +++++++++++
 src/com/cyanogenmod/trebuchet/PagedViewIcon.java   |   30 ++++++++++++++++++++
 3 files changed, 61 insertions(+), 7 deletions(-)

diff --git a/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java b/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
index a31bf40..82df008 100644
--- a/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
+++ b/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
@@ -580,14 +580,21 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
                 mLauncher.getWorkspace().isSwitchingState()) return;
 
         if (v instanceof PagedViewIcon) {
-            // Animate some feedback to the click
             final ApplicationInfo appInfo = (ApplicationInfo) v.getTag();
-            animateClickFeedback(v, new Runnable() {
-                @Override
-                public void run() {
-                    mLauncher.startActivitySafely(appInfo.intent, appInfo);
-                }
-            });
+
+            if (!PagedViewIcon.POST_CLICK_ANIMATE) {
+                // Display some feedback to the click
+                displayClickFeedback(v);
+                mLauncher.startActivitySafely(appInfo.intent, appInfo);
+            } else {
+                // Animate some feedback to the click
+                animateClickFeedback(v, new Runnable() {
+                      @Override
+                      public void run() {
+                          mLauncher.startActivitySafely(appInfo.intent, appInfo);
+                     }
+                });
+            }
         } else if (v instanceof PagedViewWidget) {
             // Let the user know that they have to long press to add a widget
             Toast.makeText(getContext(), R.string.long_press_widget_to_add,
diff --git a/src/com/cyanogenmod/trebuchet/PagedView.java b/src/com/cyanogenmod/trebuchet/PagedView.java
index 6fd2657..5562392 100644
--- a/src/com/cyanogenmod/trebuchet/PagedView.java
+++ b/src/com/cyanogenmod/trebuchet/PagedView.java
@@ -974,6 +974,18 @@ public abstract class PagedView extends ViewGroup {
         return mTouchState != TOUCH_STATE_REST;
     }
 
+    class AlphaResetRunnable implements Runnable {
+        View mView;
+
+        AlphaResetRunnable(View v) {
+            mView = v;
+        }
+
+        public void run() {
+            mView.setAlpha(1.0f);
+        }
+    }
+
     protected void animateClickFeedback(View v, final Runnable r) {
         // animate the view slightly to show click feedback running some logic after it is "pressed"
         ObjectAnimator anim = (ObjectAnimator) AnimatorInflater.
@@ -987,6 +999,11 @@ public abstract class PagedView extends ViewGroup {
         anim.start();
     }
 
+    protected void displayClickFeedback(View v) {
+        v.setAlpha(0.5f);
+        v.postDelayed((Runnable)(new AlphaResetRunnable(v)), 350);
+    }
+
     protected void determineScrollingStart(MotionEvent ev) {
         determineScrollingStart(ev, 1.0f);
     }
diff --git a/src/com/cyanogenmod/trebuchet/PagedViewIcon.java b/src/com/cyanogenmod/trebuchet/PagedViewIcon.java
index 0f16ed4..8adaf33 100644
--- a/src/com/cyanogenmod/trebuchet/PagedViewIcon.java
+++ b/src/com/cyanogenmod/trebuchet/PagedViewIcon.java
@@ -26,12 +26,22 @@ import android.util.AttributeSet;
 import android.widget.Checkable;
 import android.widget.TextView;
 
+import android.view.MotionEvent;
+import android.view.View;
+
 
 /**
  * An icon on a PagedView, specifically for items in the launcher's paged view (with compound
  * drawables on the top).
  */
 public class PagedViewIcon extends TextView implements Checkable {
+
+    // POST_CLICK_ANIMATE determines whether the fading of the icon is animated after the click.
+    // If set to false the icon will not be animated and instead will be faded when the user
+    // touches the icon.  The benefit of not fading the icon after the click is that the app
+    // can immediately be launched when the click happens and therefore reduce the app
+    // launch latency.
+    static public final boolean POST_CLICK_ANIMATE = false;
     private static final String TAG = "PagedViewIcon";
 
     // holographic outline
@@ -146,6 +156,26 @@ public class PagedViewIcon extends TextView implements Checkable {
     }
 
     @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        boolean result = super.onTouchEvent(event);
+
+        switch (event.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                if (!POST_CLICK_ANIMATE) {
+                    setAlpha(0.5f);
+                }
+                break;
+            case MotionEvent.ACTION_CANCEL:
+            case MotionEvent.ACTION_UP:
+                if (!POST_CLICK_ANIMATE) {
+                    setAlpha(1.0f);
+                }
+                break;
+        }
+        return result;
+    }
+
+    @Override
     public boolean isChecked() {
         return mIsChecked;
     }
-- 
1.7.9.5