commit 19c8c708f16546fc75ae12659aa190f5e3dfbb52
author Selim Cinek <cinek@google.com> Mon Aug 25 22:09:19 2014 +0200
committer Selim Cinek <cinek@google.com> Wed Aug 27 12:38:15 2014 +0200
tree adebd8eef8f9c7054a46ff5ee9252753bec9252d
parent 473119fdc36340f833e4b755ae7f50a6914e0a24

Added anti-falsing logic to the keyguard.

Newly enforcing a threshold for the following cases:
Unlocking, Dismissing Notifications, Swiping Down Quick settings.
Also increased the affordance threshold slightly.

Bug: 15433087
Change-Id: I723346dedf9ae0e3f8b103182992ab572fc394b9

packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 387abc3..d3c3f56 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -160,6 +160,8 @@
 
     private boolean mQsScrimEnabled = true;
     private boolean mLastAnnouncementWasQuickSettings;
+    private boolean mQsTouchAboveFalsingThreshold;
+    private int mQsFalsingThreshold;
 
     public NotificationPanelView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -230,6 +232,8 @@
         mClockPositionAlgorithm.loadDimens(getResources());
         mNotificationScrimWaitDistance =
                 getResources().getDimensionPixelSize(R.dimen.notification_scrim_wait_distance);
+        mQsFalsingThreshold = getResources().getDimensionPixelSize(
+                R.dimen.qs_falsing_threshold);
     }
 
     public void updateResources() {
@@ -526,6 +530,7 @@
     private void resetDownStates(MotionEvent event) {
         if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
             mOnlyAffordanceInThisMotion = false;
+            mQsTouchAboveFalsingThreshold = mQsFullyExpanded;
         }
     }
 
@@ -546,6 +551,9 @@
     }
 
     private boolean flingExpandsQs(float vel) {
+        if (!mQsTouchAboveFalsingThreshold && mStatusBarState == StatusBarState.KEYGUARD) {
+            return false;
+        }
         if (Math.abs(vel) < mFlingAnimationUtils.getMinVelocityPxPerSecond()) {
             return getQsExpansionFraction() > 0.5f;
         } else {
@@ -690,6 +698,9 @@
             case MotionEvent.ACTION_MOVE:
                 final float h = y - mInitialTouchY;
                 setQsExpansion(h + mInitialHeightOnTouch);
+                if (h >= mQsFalsingThreshold) {
+                    mQsTouchAboveFalsingThreshold = true;
+                }
                 trackMovement(event);
                 break;