Add swipe-to-dismiss notifications in popup menu.

- Next secondary icon animates up to replace dismissed main notification
- Add padding around main notification so it always aligns with the
  straight edges of the view (not the rounded corners); looks more
  dismissable
- Notification view collapses as notifications are dismissed
- To mimic system notification behavior, we copy SwipeHelper,
  FlingAnimationUtils, and Interpolators. We also apply elevation
  to notifications and reveal a darker color beneath when dismissing.

Bug: 32410600
Change-Id: I9fbf10e73bb4996f17ef061c856efb013967d972

1 files changed, 16 insertions, 0 deletions

diff --git a/src/com/android/launcher3/LauncherAnimUtils.java b/src/com/android/launcher3/LauncherAnimUtils.java
index 01e73d4a1..9ea277c13 100644
--- a/src/com/android/launcher3/LauncherAnimUtils.java
+++ b/src/com/android/launcher3/LauncherAnimUtils.java
@@ -23,7 +23,9 @@ import android.animation.PropertyValuesHolder;
 import android.animation.ValueAnimator;
 import android.util.Property;
 import android.view.View;
+import android.view.ViewGroup;
 import android.view.ViewTreeObserver;
+import android.widget.ViewAnimator;
 
 import java.util.HashSet;
 import java.util.WeakHashMap;
@@ -127,4 +129,18 @@ public class LauncherAnimUtils {
         new FirstFrameAnimatorHelper(anim, view);
         return anim;
     }
+
+    public static ValueAnimator animateViewHeight(final View v, int fromHeight, int toHeight) {
+        ValueAnimator anim = ValueAnimator.ofInt(fromHeight, toHeight);
+        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+            @Override
+            public void onAnimationUpdate(ValueAnimator valueAnimator) {
+                int val = (Integer) valueAnimator.getAnimatedValue();
+                ViewGroup.LayoutParams layoutParams = v.getLayoutParams();
+                layoutParams.height = val;
+                v.setLayoutParams(layoutParams);
+            }
+        });
+        return anim;
+    }
 }